{
 "aliases": [
  {
   "relation": "exact",
   "review_state": "source",
   "source_entity_id": "6175",
   "source_ref": "pudl-plants"
  },
  {
   "basis": "EHA 2026 EIA_PtID 6175 = EIA plant; state WA; EHA point 0.21 km from EIA point; names share a token; HILARRI v4 links EHA id to NID WA00349 (Lower Granite Lock and Dam, Snake River), NID point 0.14 km from EIA point; NID purposes: Navigation;Fish and Wildlife Pond;Recreation;Hydroelectric",
   "evidence_url": "https://hydrosource.ornl.gov/data/datasets/hilarri-v4/",
   "kind": "hydro_plant",
   "name": "Lower Granite",
   "note": "Hydropower is a reported purpose in the NID. Associated power plant is included in the EHA.",
   "relation": "exact",
   "review_state": "reviewed",
   "reviewed_on": "2026-09-21",
   "source_entity_id": "hc0250_p01",
   "source_ref": "ornl-eha-2026",
   "source_url": "https://hydrosource.ornl.gov/data/datasets/eha-plant-2026/",
   "water": "Snake And Columbia Rivers"
  },
  {
   "basis": "EHA 2026 EIA_PtID 6175 = EIA plant; state WA; EHA point 0.21 km from EIA point; names share a token; HILARRI v4 links EHA id to NID WA00349 (Lower Granite Lock and Dam, Snake River), NID point 0.14 km from EIA point; NID purposes: Navigation;Fish and Wildlife Pond;Recreation;Hydroelectric",
   "evidence_url": "https://hydrosource.ornl.gov/data/datasets/hilarri-v4/",
   "kind": "dam",
   "name": "Lower Granite Lock and Dam",
   "note": "Hydropower is a reported purpose in the NID. Associated power plant is included in the EHA.",
   "relation": "component",
   "review_state": "reviewed",
   "reviewed_on": "2026-09-21",
   "source_entity_id": "WA00349",
   "source_ref": "usace-nid",
   "source_url": "https://nid.sec.usace.army.mil/"
  },
  {
   "basis": "EHA 2026 EIA_PtID 6175 = EIA plant; state WA; EHA point 0.21 km from EIA point; names share a token; HILARRI v4 links EHA id to NID WA00349 (Lower Granite Lock and Dam, Snake River), NID point 0.14 km from EIA point; NID purposes: Navigation;Fish and Wildlife Pond;Recreation;Hydroelectric",
   "evidence_url": "https://hydrosource.ornl.gov/data/datasets/hilarri-v4/",
   "ids": {
    "grand_id": null,
    "huc12": "170601070802",
    "nhdplusv2_comid": "23449541"
   },
   "kind": "water_links",
   "name": null,
   "note": "Hydropower is a reported purpose in the NID. Associated power plant is included in the EHA.",
   "relation": "exact",
   "review_state": "reviewed",
   "reviewed_on": "2026-09-21",
   "source_entity_id": "2256",
   "source_ref": "ornl-hilarri-v4",
   "source_url": "https://hydrosource.ornl.gov/data/datasets/hilarri-v4/"
  },
  {
   "basis": "USACE's NIDID agency-alias group maps NID WA00349 (this plant's reviewed dam) to NWDP location LWG; CWMS location 'Lower Granite Lock and Dam' is a PROJECT in WA, 0.11 km from the EIA plant point; its name shares 'lower', 'granite', 'lock' with the NID dam name",
   "evidence_url": "https://cwms-data.usace.army.mil/cwms-data/location/group/NIDID?office=CWMS&category-id=Agency%20Aliases&group-office-id=CWMS",
   "kind": "cwms_location",
   "name": "Lower Granite Lock and Dam",
   "note": null,
   "office": "NWDP",
   "relation": "component",
   "review_state": "reviewed",
   "reviewed_on": "2026-09-28",
   "source_entity_id": "LWG",
   "source_ref": "usace-cwms-history",
   "source_url": "https://cwms-data.usace.army.mil/cwms-data/locations/LWG?office=NWDP"
  },
  {
   "kind": "display_name",
   "note": "usace project name",
   "relation": "exact",
   "review_state": "reviewed",
   "reviewed_on": "2026-09-18",
   "source_entity_id": "Lower Granite Lock and Dam",
   "source_ref": "curated-aliases",
   "source_url": "https://www.nww.usace.army.mil/Locations/"
  }
 ],
 "citation_path": "citations/plant~eia~6175.html",
 "context": {
  "nearby_bpa_lines": [
   {
    "distance_km": 0.21,
    "id": "line:bpa:LGPH-LOGT-1",
    "name": "Lower Granite PH-Lower Granite No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 0.83,
    "id": "line:bpa:LIGO-LOGT-1",
    "name": "Little Goose-Lower Granite No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 1.07,
    "id": "line:bpa:CEFE-LOGT-2",
    "name": "Central Ferry-Lower Granite No 2",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 1.1,
    "id": "line:bpa:LOGT-HTWA-1",
    "name": "Lower Granite-Hatwai No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   }
  ],
  "nearby_bpa_lines_status": {
   "available": true,
   "method": "Planar distance in the CONUS Albers projection (EPSG:5070) from the reported plant point to the published geometry, within about 1% in the region; features within 3 km, nearest first. Context only: nearness is not an electrical connection.",
   "note": "nearby_lines holds BPA's published lines and HIFLD-compiled lines of other owners (source_ref on each row); nearby_bpa_lines is the BPA subset; substations are HIFLD 2022 points at 100 kV and above",
   "radius_km": 3.0,
   "reason": null
  },
  "nearby_lines": [
   {
    "distance_km": 0.21,
    "id": "line:bpa:LGPH-LOGT-1",
    "name": "Lower Granite PH-Lower Granite No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 0.83,
    "id": "line:bpa:LIGO-LOGT-1",
    "name": "Little Goose-Lower Granite No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 1.07,
    "id": "line:bpa:CEFE-LOGT-2",
    "name": "Central Ferry-Lower Granite No 2",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 1.1,
    "id": "line:bpa:LOGT-HTWA-1",
    "name": "Lower Granite-Hatwai No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   }
  ],
  "nearby_substations": [
   {
    "distance_km": 1.13,
    "id": "substation:hifld:200563",
    "kind": "SUBSTATION",
    "max_kv": 500.0,
    "name": "LOWER GRANITE",
    "source_ref": "hifld-substations-2022",
    "type": "substation"
   }
  ],
  "territories": [
   {
    "id": "territory:waecy:45",
    "name": "Avista (WA)",
    "note": "Plant coordinate lies inside this approximate territory polygon; candidate only, not a supply or service relationship",
    "relation": "candidate",
    "source_ref": "wa-ecology-territories"
   }
  ]
 },
 "coverage": {
  "generators_eligible": 6,
  "generators_operating": 6,
  "generators_published": 6,
  "output_years": [
   2015,
   2016,
   2017,
   2018,
   2019,
   2020,
   2021,
   2022,
   2023,
   2024
  ],
  "ownership_known_generators": 6
 },
 "disclosed_claims": {
  "note": "Washington Fuel Mix Disclosure claims on this plant for CY2024, the latest year loaded; several suppliers can claim one plant; a claim attributes retail sales, it is not a wire or a share of ownership",
  "report_year": 2024,
  "rows": [],
  "source_ref": "wa-fmd-2024-by-plant"
 },
 "emissions": {
  "available": false,
  "generators_monitored": 0,
  "generators_total": 0,
  "history": [],
  "note": "This plant has no coal, gas, oil or waste generator, so it has no combustion unit for EPA to monitor and no CEMS data exists. That is not a claim of zero emissions: the atlas reports only what EPA-monitored units filed.",
  "reason": "not_applicable",
  "source_ref": "pudl-epacems",
  "units_monitored": 0,
  "year": 2024
 },
 "events": [],
 "facts": [
  {
   "basis": "Sum of generator nameplate MW with operational status code OP in the inventory year; one row per generator; unscaled by ownership",
   "coverage": {
    "eligible": 6,
    "included": 6,
    "unit": "operating generators"
   },
   "denominator": null,
   "evidence": "reported",
   "fact_id": "plant:eia:6175#nameplate_mw_op@2024",
   "label": "Nameplate capacity, operating generators",
   "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175",
   "maturity": "final",
   "method": "derived",
   "metric": "nameplate_mw_op",
   "missing_reason": null,
   "note": null,
   "period": {
    "kind": "inventory_year",
    "note": "EIA-860 annual inventory; status as of the end of the reporting year",
    "report_date": "2024-01-01",
    "year": 2024
   },
   "precision": 1,
   "quality": "valid",
   "source_ref": "pudl-generators",
   "unit": "MW",
   "value": 810.0
  },
  {
   "basis": "Generator rows for the plant in the inventory year, any status",
   "coverage": null,
   "denominator": null,
   "evidence": "reported",
   "fact_id": "plant:eia:6175#generator_count@2024",
   "label": "Generators listed",
   "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175",
   "maturity": "final",
   "method": "derived",
   "metric": "generator_count",
   "missing_reason": null,
   "note": null,
   "period": {
    "kind": "inventory_year",
    "note": "EIA-860 annual inventory; status as of the end of the reporting year",
    "report_date": "2024-01-01",
    "year": 2024
   },
   "precision": 0,
   "quality": "valid",
   "source_ref": "pudl-generators",
   "unit": "count",
   "value": 6.0
  },
  {
   "basis": "Generator rows with status code OP",
   "coverage": null,
   "denominator": null,
   "evidence": "reported",
   "fact_id": "plant:eia:6175#generator_count_op@2024",
   "label": "Operating generators",
   "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175",
   "maturity": "final",
   "method": "derived",
   "metric": "generator_count_op",
   "missing_reason": null,
   "note": null,
   "period": {
    "kind": "inventory_year",
    "note": "EIA-860 annual inventory; status as of the end of the reporting year",
    "report_date": "2024-01-01",
    "year": 2024
   },
   "precision": 0,
   "quality": "valid",
   "source_ref": "pudl-generators",
   "unit": "count",
   "value": 6.0
  },
  {
   "basis": "Sum of EIA-923 annual net generation over the plant's unique prime-mover x energy-source rows; negative values (pumping, station use) retained",
   "coverage": {
    "eligible": 1,
    "included": 1,
    "unit": "plant x prime-mover x fuel rows"
   },
   "denominator": null,
   "evidence": "reported",
   "fact_id": "plant:eia:6175#net_generation_mwh@2024",
   "label": "Net generation",
   "locator": "out_eia923__yearly_generation_fuel_combined.parquet; report_date=2024-01-01; plant_id_eia=6175",
   "maturity": "final",
   "method": "derived",
   "metric": "net_generation_mwh",
   "missing_reason": null,
   "note": null,
   "period": {
    "hours": 8784,
    "kind": "calendar_year",
    "period_end": "2025-01-01T00:00:00Z",
    "period_start": "2024-01-01T00:00:00Z",
    "year": 2024
   },
   "precision": 0,
   "quality": "valid",
   "source_ref": "pudl-output",
   "unit": "MWh",
   "value": 1273521.0
  },
  {
   "basis": "Net generation MWh / (operating nameplate MW x hours in year); only when every operating generator was operating before the year began and none retired during it",
   "coverage": null,
   "denominator": {
    "hours": 8784,
    "metric": "nameplate_mw_op",
    "unit": "MW",
    "value": 810.0
   },
   "evidence": "reported",
   "fact_id": "plant:eia:6175#capacity_factor@2024",
   "label": "Capacity factor",
   "locator": "derived: net_generation_mwh@2024 / (nameplate_mw_op x 8784 h)",
   "maturity": "final",
   "method": "derived",
   "metric": "capacity_factor",
   "missing_reason": null,
   "note": null,
   "period": {
    "hours": 8784,
    "kind": "calendar_year",
    "period_end": "2025-01-01T00:00:00Z",
    "period_start": "2024-01-01T00:00:00Z",
    "year": 2024
   },
   "precision": 3,
   "quality": "valid",
   "source_ref": "pudl-output",
   "unit": "fraction",
   "value": 0.17898999865074547
  }
 ],
 "generators": [
  {
   "dates": {
    "note": "EIA-860 reports month and year; day is a placeholder",
    "operating": "1975-04-01",
    "original_planned_operating": null,
    "planned_operating": null,
    "planned_retirement": null,
    "precision": "month",
    "retirement": null
   },
   "energy_source": {
    "code": "WAT",
    "fuel_group": "hydro",
    "label": "water"
   },
   "facts": [
    {
     "basis": "Generator nameplate capacity as reported on EIA-860",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:1#capacity_mw@2024",
     "label": "Nameplate capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=1",
     "maturity": "final",
     "method": "derived",
     "metric": "capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    },
    {
     "basis": "Reported or source-estimated net summer capability",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:1#summer_capacity_mw@2024",
     "label": "Net summer capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=1",
     "maturity": "final",
     "method": "derived",
     "metric": "summer_capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    },
    {
     "basis": "Reported or source-estimated net winter capability",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:1#winter_capacity_mw@2024",
     "label": "Net winter capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=1",
     "maturity": "final",
     "method": "derived",
     "metric": "winter_capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    }
   ],
   "generator_id": "1",
   "id": "generator:eia:6175:1",
   "is_storage": false,
   "operator": {
    "entity_type": "F",
    "entity_type_label": "Federally-owned utility",
    "id": "org:eia:19400",
    "name": "U.S. Army Corps of Engineers, Northwestern Division"
   },
   "ownership": {
    "basis": "eia860_schedule4_default",
    "invalid_shares": false,
    "note": null,
    "shares": [
     {
      "basis": "eia860_schedule4_default",
      "evidence": "reported",
      "fraction": 1.0,
      "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=1; ownership_code=S; rule=eia860_schedule4_default",
      "method": "derived",
      "owned_mw": 135.0,
      "owner": {
       "entity_type": "F",
       "entity_type_label": "Federally-owned utility",
       "id": "org:eia:19400",
       "name": "U.S. Army Corps of Engineers, Northwestern Division"
      },
      "reason": "eia860_schedule4_default",
      "source_ref": "pudl-generators"
     }
    ],
    "unassigned_fraction": 0.0,
    "unassigned_mw": 0.0,
    "unknown_reason": null
   },
   "prime_mover": {
    "code": "HY",
    "label": "hydraulic_turbine"
   },
   "resource_group": "hydro",
   "status": {
    "category": "existing",
    "code": "OP",
    "label": "operating"
   },
   "storage": null,
   "technology": "Conventional Hydroelectric"
  },
  {
   "dates": {
    "note": "EIA-860 reports month and year; day is a placeholder",
    "operating": "1975-05-01",
    "original_planned_operating": null,
    "planned_operating": null,
    "planned_retirement": null,
    "precision": "month",
    "retirement": null
   },
   "energy_source": {
    "code": "WAT",
    "fuel_group": "hydro",
    "label": "water"
   },
   "facts": [
    {
     "basis": "Generator nameplate capacity as reported on EIA-860",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:2#capacity_mw@2024",
     "label": "Nameplate capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=2",
     "maturity": "final",
     "method": "derived",
     "metric": "capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    },
    {
     "basis": "Reported or source-estimated net summer capability",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:2#summer_capacity_mw@2024",
     "label": "Net summer capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=2",
     "maturity": "final",
     "method": "derived",
     "metric": "summer_capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 127.0
    },
    {
     "basis": "Reported or source-estimated net winter capability",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:2#winter_capacity_mw@2024",
     "label": "Net winter capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=2",
     "maturity": "final",
     "method": "derived",
     "metric": "winter_capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 127.0
    }
   ],
   "generator_id": "2",
   "id": "generator:eia:6175:2",
   "is_storage": false,
   "operator": {
    "entity_type": "F",
    "entity_type_label": "Federally-owned utility",
    "id": "org:eia:19400",
    "name": "U.S. Army Corps of Engineers, Northwestern Division"
   },
   "ownership": {
    "basis": "eia860_schedule4_default",
    "invalid_shares": false,
    "note": null,
    "shares": [
     {
      "basis": "eia860_schedule4_default",
      "evidence": "reported",
      "fraction": 1.0,
      "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=2; ownership_code=S; rule=eia860_schedule4_default",
      "method": "derived",
      "owned_mw": 135.0,
      "owner": {
       "entity_type": "F",
       "entity_type_label": "Federally-owned utility",
       "id": "org:eia:19400",
       "name": "U.S. Army Corps of Engineers, Northwestern Division"
      },
      "reason": "eia860_schedule4_default",
      "source_ref": "pudl-generators"
     }
    ],
    "unassigned_fraction": 0.0,
    "unassigned_mw": 0.0,
    "unknown_reason": null
   },
   "prime_mover": {
    "code": "HY",
    "label": "hydraulic_turbine"
   },
   "resource_group": "hydro",
   "status": {
    "category": "existing",
    "code": "OP",
    "label": "operating"
   },
   "storage": null,
   "technology": "Conventional Hydroelectric"
  },
  {
   "dates": {
    "note": "EIA-860 reports month and year; day is a placeholder",
    "operating": "1975-06-01",
    "original_planned_operating": null,
    "planned_operating": null,
    "planned_retirement": null,
    "precision": "month",
    "retirement": null
   },
   "energy_source": {
    "code": "WAT",
    "fuel_group": "hydro",
    "label": "water"
   },
   "facts": [
    {
     "basis": "Generator nameplate capacity as reported on EIA-860",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:3#capacity_mw@2024",
     "label": "Nameplate capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=3",
     "maturity": "final",
     "method": "derived",
     "metric": "capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    },
    {
     "basis": "Reported or source-estimated net summer capability",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:3#summer_capacity_mw@2024",
     "label": "Net summer capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=3",
     "maturity": "final",
     "method": "derived",
     "metric": "summer_capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    },
    {
     "basis": "Reported or source-estimated net winter capability",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:3#winter_capacity_mw@2024",
     "label": "Net winter capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=3",
     "maturity": "final",
     "method": "derived",
     "metric": "winter_capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    }
   ],
   "generator_id": "3",
   "id": "generator:eia:6175:3",
   "is_storage": false,
   "operator": {
    "entity_type": "F",
    "entity_type_label": "Federally-owned utility",
    "id": "org:eia:19400",
    "name": "U.S. Army Corps of Engineers, Northwestern Division"
   },
   "ownership": {
    "basis": "eia860_schedule4_default",
    "invalid_shares": false,
    "note": null,
    "shares": [
     {
      "basis": "eia860_schedule4_default",
      "evidence": "reported",
      "fraction": 1.0,
      "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=3; ownership_code=S; rule=eia860_schedule4_default",
      "method": "derived",
      "owned_mw": 135.0,
      "owner": {
       "entity_type": "F",
       "entity_type_label": "Federally-owned utility",
       "id": "org:eia:19400",
       "name": "U.S. Army Corps of Engineers, Northwestern Division"
      },
      "reason": "eia860_schedule4_default",
      "source_ref": "pudl-generators"
     }
    ],
    "unassigned_fraction": 0.0,
    "unassigned_mw": 0.0,
    "unknown_reason": null
   },
   "prime_mover": {
    "code": "HY",
    "label": "hydraulic_turbine"
   },
   "resource_group": "hydro",
   "status": {
    "category": "existing",
    "code": "OP",
    "label": "operating"
   },
   "storage": null,
   "technology": "Conventional Hydroelectric"
  },
  {
   "dates": {
    "note": "EIA-860 reports month and year; day is a placeholder",
    "operating": "1978-02-01",
    "original_planned_operating": null,
    "planned_operating": null,
    "planned_retirement": null,
    "precision": "month",
    "retirement": null
   },
   "energy_source": {
    "code": "WAT",
    "fuel_group": "hydro",
    "label": "water"
   },
   "facts": [
    {
     "basis": "Generator nameplate capacity as reported on EIA-860",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:4#capacity_mw@2024",
     "label": "Nameplate capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=4",
     "maturity": "final",
     "method": "derived",
     "metric": "capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    },
    {
     "basis": "Reported or source-estimated net summer capability",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:4#summer_capacity_mw@2024",
     "label": "Net summer capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=4",
     "maturity": "final",
     "method": "derived",
     "metric": "summer_capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    },
    {
     "basis": "Reported or source-estimated net winter capability",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:4#winter_capacity_mw@2024",
     "label": "Net winter capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=4",
     "maturity": "final",
     "method": "derived",
     "metric": "winter_capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    }
   ],
   "generator_id": "4",
   "id": "generator:eia:6175:4",
   "is_storage": false,
   "operator": {
    "entity_type": "F",
    "entity_type_label": "Federally-owned utility",
    "id": "org:eia:19400",
    "name": "U.S. Army Corps of Engineers, Northwestern Division"
   },
   "ownership": {
    "basis": "eia860_schedule4_default",
    "invalid_shares": false,
    "note": null,
    "shares": [
     {
      "basis": "eia860_schedule4_default",
      "evidence": "reported",
      "fraction": 1.0,
      "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=4; ownership_code=S; rule=eia860_schedule4_default",
      "method": "derived",
      "owned_mw": 135.0,
      "owner": {
       "entity_type": "F",
       "entity_type_label": "Federally-owned utility",
       "id": "org:eia:19400",
       "name": "U.S. Army Corps of Engineers, Northwestern Division"
      },
      "reason": "eia860_schedule4_default",
      "source_ref": "pudl-generators"
     }
    ],
    "unassigned_fraction": 0.0,
    "unassigned_mw": 0.0,
    "unknown_reason": null
   },
   "prime_mover": {
    "code": "HY",
    "label": "hydraulic_turbine"
   },
   "resource_group": "hydro",
   "status": {
    "category": "existing",
    "code": "OP",
    "label": "operating"
   },
   "storage": null,
   "technology": "Conventional Hydroelectric"
  },
  {
   "dates": {
    "note": "EIA-860 reports month and year; day is a placeholder",
    "operating": "1978-04-01",
    "original_planned_operating": null,
    "planned_operating": null,
    "planned_retirement": null,
    "precision": "month",
    "retirement": null
   },
   "energy_source": {
    "code": "WAT",
    "fuel_group": "hydro",
    "label": "water"
   },
   "facts": [
    {
     "basis": "Generator nameplate capacity as reported on EIA-860",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:5#capacity_mw@2024",
     "label": "Nameplate capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=5",
     "maturity": "final",
     "method": "derived",
     "metric": "capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    },
    {
     "basis": "Reported or source-estimated net summer capability",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:5#summer_capacity_mw@2024",
     "label": "Net summer capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=5",
     "maturity": "final",
     "method": "derived",
     "metric": "summer_capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    },
    {
     "basis": "Reported or source-estimated net winter capability",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:5#winter_capacity_mw@2024",
     "label": "Net winter capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=5",
     "maturity": "final",
     "method": "derived",
     "metric": "winter_capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    }
   ],
   "generator_id": "5",
   "id": "generator:eia:6175:5",
   "is_storage": false,
   "operator": {
    "entity_type": "F",
    "entity_type_label": "Federally-owned utility",
    "id": "org:eia:19400",
    "name": "U.S. Army Corps of Engineers, Northwestern Division"
   },
   "ownership": {
    "basis": "eia860_schedule4_default",
    "invalid_shares": false,
    "note": null,
    "shares": [
     {
      "basis": "eia860_schedule4_default",
      "evidence": "reported",
      "fraction": 1.0,
      "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=5; ownership_code=S; rule=eia860_schedule4_default",
      "method": "derived",
      "owned_mw": 135.0,
      "owner": {
       "entity_type": "F",
       "entity_type_label": "Federally-owned utility",
       "id": "org:eia:19400",
       "name": "U.S. Army Corps of Engineers, Northwestern Division"
      },
      "reason": "eia860_schedule4_default",
      "source_ref": "pudl-generators"
     }
    ],
    "unassigned_fraction": 0.0,
    "unassigned_mw": 0.0,
    "unknown_reason": null
   },
   "prime_mover": {
    "code": "HY",
    "label": "hydraulic_turbine"
   },
   "resource_group": "hydro",
   "status": {
    "category": "existing",
    "code": "OP",
    "label": "operating"
   },
   "storage": null,
   "technology": "Conventional Hydroelectric"
  },
  {
   "dates": {
    "note": "EIA-860 reports month and year; day is a placeholder",
    "operating": "1978-04-01",
    "original_planned_operating": null,
    "planned_operating": null,
    "planned_retirement": null,
    "precision": "month",
    "retirement": null
   },
   "energy_source": {
    "code": "WAT",
    "fuel_group": "hydro",
    "label": "water"
   },
   "facts": [
    {
     "basis": "Generator nameplate capacity as reported on EIA-860",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:6#capacity_mw@2024",
     "label": "Nameplate capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=6",
     "maturity": "final",
     "method": "derived",
     "metric": "capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    },
    {
     "basis": "Reported or source-estimated net summer capability",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:6#summer_capacity_mw@2024",
     "label": "Net summer capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=6",
     "maturity": "final",
     "method": "derived",
     "metric": "summer_capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    },
    {
     "basis": "Reported or source-estimated net winter capability",
     "coverage": null,
     "denominator": null,
     "evidence": "reported",
     "fact_id": "generator:eia:6175:6#winter_capacity_mw@2024",
     "label": "Net winter capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=6",
     "maturity": "final",
     "method": "derived",
     "metric": "winter_capacity_mw",
     "missing_reason": null,
     "note": null,
     "period": {
      "kind": "inventory_year",
      "note": "EIA-860 annual inventory; status as of the end of the reporting year",
      "report_date": "2024-01-01",
      "year": 2024
     },
     "precision": 1,
     "quality": "valid",
     "source_ref": "pudl-generators",
     "unit": "MW",
     "value": 135.0
    }
   ],
   "generator_id": "6",
   "id": "generator:eia:6175:6",
   "is_storage": false,
   "operator": {
    "entity_type": "F",
    "entity_type_label": "Federally-owned utility",
    "id": "org:eia:19400",
    "name": "U.S. Army Corps of Engineers, Northwestern Division"
   },
   "ownership": {
    "basis": "eia860_schedule4_default",
    "invalid_shares": false,
    "note": null,
    "shares": [
     {
      "basis": "eia860_schedule4_default",
      "evidence": "reported",
      "fraction": 1.0,
      "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6175; generator_id=6; ownership_code=S; rule=eia860_schedule4_default",
      "method": "derived",
      "owned_mw": 135.0,
      "owner": {
       "entity_type": "F",
       "entity_type_label": "Federally-owned utility",
       "id": "org:eia:19400",
       "name": "U.S. Army Corps of Engineers, Northwestern Division"
      },
      "reason": "eia860_schedule4_default",
      "source_ref": "pudl-generators"
     }
    ],
    "unassigned_fraction": 0.0,
    "unassigned_mw": 0.0,
    "unknown_reason": null
   },
   "prime_mover": {
    "code": "HY",
    "label": "hydraulic_turbine"
   },
   "resource_group": "hydro",
   "status": {
    "category": "existing",
    "code": "OP",
    "label": "operating"
   },
   "storage": null,
   "technology": "Conventional Hydroelectric"
  }
 ],
 "id": "plant:eia:6175",
 "interconnection_requests": [],
 "latest": {
  "changed_on": "2026-08-01",
  "changes_since_baseline": [
   {
    "baseline_capacity_mw": 135.0,
    "baseline_status": "OP",
    "change": "status_changed",
    "changed_on": "2026-08-01",
    "generator_id": "1",
    "latest_capacity_mw": 135.0,
    "latest_status": "OA",
    "planned_operating_date": null,
    "retirement_date": null
   }
  ],
  "edition": {
   "report_month": "2026-08-01",
   "source_ref": "eia860m-inventory",
   "valid_until": "2026-09-01"
  },
  "facts": [
   {
    "basis": "Sum of nameplate MW over generators whose current-valid EIA-860M workbook assertion has status OP; dated by the complete inventory edition; never added to the baseline aggregate",
    "coverage": {
     "eligible": 6,
     "included": 6,
     "unit": "current and historical generators",
     "unknown_current_state": 0
    },
    "denominator": null,
    "evidence": "reported",
    "fact_id": "plant:eia:6175#latest_nameplate_mw_op",
    "label": "Operating nameplate capacity, latest inventory",
    "locator": "Preliminary Monthly Electric Generator Inventory, August 2026; plant_id_eia=6175; report_date=2026-08-01",
    "maturity": "provisional",
    "method": "derived",
    "metric": "latest_nameplate_mw_op",
    "missing_reason": null,
    "note": null,
    "period": {
     "as_of": "2026-08-01",
     "kind": "instant",
     "note": "Complete EIA-860M monthly inventory; assertion dates are not event dates"
    },
    "precision": 1,
    "quality": "valid",
    "source_ref": "eia860m-inventory",
    "unit": "MW",
    "value": 675.0
   },
   {
    "basis": "Sum of nameplate MW over generators whose current-valid EIA-860M workbook assertion is a proposal or construction stage (P, L, T, U, V, OT, TS); a proposal is not a commitment and its date is a forecast",
    "coverage": {
     "eligible": 6,
     "included": 6,
     "unit": "current and historical generators"
    },
    "denominator": null,
    "evidence": "reported",
    "fact_id": "plant:eia:6175#latest_nameplate_mw_planned",
    "label": "Planned nameplate capacity, latest inventory",
    "locator": "Preliminary Monthly Electric Generator Inventory, August 2026; plant_id_eia=6175; report_date=2026-08-01",
    "maturity": "provisional",
    "method": "derived",
    "metric": "latest_nameplate_mw_planned",
    "missing_reason": "not_applicable",
    "note": null,
    "period": {
     "as_of": "2026-08-01",
     "kind": "instant",
     "note": "Complete EIA-860M monthly inventory; assertion dates are not event dates"
    },
    "precision": 1,
    "quality": "not_applicable",
    "source_ref": "eia860m-inventory",
    "unit": "MW",
    "value": null
   },
   {
    "basis": "Sum of nameplate MW over generators whose current-valid EIA-860M workbook assertion is retired, cancelled or indefinitely postponed (RE, CN, IP); retired is not demolished",
    "coverage": {
     "eligible": 6,
     "included": 6,
     "unit": "current and historical generators"
    },
    "denominator": null,
    "evidence": "reported",
    "fact_id": "plant:eia:6175#latest_nameplate_mw_retired",
    "label": "Retired or cancelled nameplate capacity, latest inventory",
    "locator": "Preliminary Monthly Electric Generator Inventory, August 2026; plant_id_eia=6175; report_date=2026-08-01",
    "maturity": "provisional",
    "method": "derived",
    "metric": "latest_nameplate_mw_retired",
    "missing_reason": "not_applicable",
    "note": null,
    "period": {
     "as_of": "2026-08-01",
     "kind": "instant",
     "note": "Complete EIA-860M monthly inventory; assertion dates are not event dates"
    },
    "precision": 1,
    "quality": "not_applicable",
    "source_ref": "eia860m-inventory",
    "unit": "MW",
    "value": null
   }
  ],
  "historical_units": [],
  "in_baseline": true,
  "last_retirement_date": null,
  "life": "operating",
  "next_planned_operating_date": null,
  "note": "Independently dated by EIA-860M; the baseline facts above stay the validated edition. Planned dates are forecasts; retired is not demolished.",
  "summary": {
   "mw_entered_service": null,
   "mw_retired_or_cancelled": null,
   "units_entered_service": 0,
   "units_new_since_baseline": 0,
   "units_retired_or_cancelled": 0
  },
  "units": [
   {
    "capacity_mw": 135.0,
    "changed_on": "2026-08-01",
    "dates": {
     "operating": "1975-04-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "1",
    "id": "generator:eia:6175:1",
    "in_baseline": true,
    "life": "standby_or_out_of_service",
    "resource_group": "hydro",
    "status": {
     "category": "existing",
     "code": "OA",
     "label": "out_of_service_short_term"
    },
    "technology": "Conventional Hydroelectric"
   },
   {
    "capacity_mw": 135.0,
    "changed_on": "2026-08-01",
    "dates": {
     "operating": "1975-05-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "2",
    "id": "generator:eia:6175:2",
    "in_baseline": true,
    "life": "operating",
    "resource_group": "hydro",
    "status": {
     "category": "existing",
     "code": "OP",
     "label": "operating"
    },
    "technology": "Conventional Hydroelectric"
   },
   {
    "capacity_mw": 135.0,
    "changed_on": "2026-08-01",
    "dates": {
     "operating": "1975-06-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "3",
    "id": "generator:eia:6175:3",
    "in_baseline": true,
    "life": "operating",
    "resource_group": "hydro",
    "status": {
     "category": "existing",
     "code": "OP",
     "label": "operating"
    },
    "technology": "Conventional Hydroelectric"
   },
   {
    "capacity_mw": 135.0,
    "changed_on": "2026-08-01",
    "dates": {
     "operating": "1978-02-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "4",
    "id": "generator:eia:6175:4",
    "in_baseline": true,
    "life": "operating",
    "resource_group": "hydro",
    "status": {
     "category": "existing",
     "code": "OP",
     "label": "operating"
    },
    "technology": "Conventional Hydroelectric"
   },
   {
    "capacity_mw": 135.0,
    "changed_on": "2026-08-01",
    "dates": {
     "operating": "1978-04-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "5",
    "id": "generator:eia:6175:5",
    "in_baseline": true,
    "life": "operating",
    "resource_group": "hydro",
    "status": {
     "category": "existing",
     "code": "OP",
     "label": "operating"
    },
    "technology": "Conventional Hydroelectric"
   },
   {
    "capacity_mw": 135.0,
    "changed_on": "2026-08-01",
    "dates": {
     "operating": "1978-04-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "6",
    "id": "generator:eia:6175:6",
    "in_baseline": true,
    "life": "operating",
    "resource_group": "hydro",
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     "code": "OP",
     "label": "operating"
    },
    "technology": "Conventional Hydroelectric"
   }
  ]
 },
 "location": {
  "city": "Pomeroy",
  "county": "Whitman",
  "datum": null,
  "lat": 46.659503,
  "locator": "out_eia__yearly_plants.parquet; report_date=2024-01-01; plant_id_eia=6175",
  "lon": -117.429385,
  "note": "Plant coordinate shared by all generators; not turbine or inverter locations. Source datum field empty in this edition.",
  "quality": "source_reported",
  "source_ref": "pudl-plants",
  "state": "WA",
  "timezone": "America/Los_Angeles"
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 "name": "Lower Granite Lock and Dam",
 "operator": {
  "entity_type": "F",
  "entity_type_label": "Federally-owned utility",
  "id": "org:eia:19400",
  "name": "U.S. Army Corps of Engineers, Northwestern Division"
 },
 "output": {
  "annual": [
   {
    "components": [
     {
      "energy_source": {
       "code": "WAT",
       "fuel_group": "hydro",
       "label": "water"
      },
      "maturity": "final",
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      "prime_mover": {
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       "label": "hydraulic_turbine"
      }
     }
    ],
    "fact": {
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     "coverage": {
      "eligible": 1,
      "included": 1,
      "unit": "plant x prime-mover x fuel rows"
     },
     "denominator": null,
     "evidence": "reported",
     "fact_id": "plant:eia:6175#net_generation_mwh@2015",
     "label": "Net generation",
     "locator": "out_eia923__yearly_generation_fuel_combined.parquet; report_date=2015-01-01; plant_id_eia=6175",
     "maturity": "final",
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     "metric": "net_generation_mwh",
     "missing_reason": null,
     "note": null,
     "period": {
      "hours": 8760,
      "kind": "calendar_year",
      "period_end": "2016-01-01T00:00:00Z",
      "period_start": "2015-01-01T00:00:00Z",
      "year": 2015
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     "precision": 0,
     "quality": "valid",
     "source_ref": "pudl-output",
     "unit": "MWh",
     "value": 1698509.0
    },
    "rows": 1,
    "year": 2015
   },
   {
    "components": [
     {
      "energy_source": {
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      "prime_mover": {
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      }
     }
    ],
    "fact": {
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     "coverage": {
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      "included": 1,
      "unit": "plant x prime-mover x fuel rows"
     },
     "denominator": null,
     "evidence": "reported",
     "fact_id": "plant:eia:6175#net_generation_mwh@2016",
     "label": "Net generation",
     "locator": "out_eia923__yearly_generation_fuel_combined.parquet; report_date=2016-01-01; plant_id_eia=6175",
     "maturity": "final",
     "method": "derived",
     "metric": "net_generation_mwh",
     "missing_reason": null,
     "note": null,
     "period": {
      "hours": 8784,
      "kind": "calendar_year",
      "period_end": "2017-01-01T00:00:00Z",
      "period_start": "2016-01-01T00:00:00Z",
      "year": 2016
     },
     "precision": 0,
     "quality": "valid",
     "source_ref": "pudl-output",
     "unit": "MWh",
     "value": 2104104.0
    },
    "rows": 1,
    "year": 2016
   },
   {
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     {
      "energy_source": {
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      "prime_mover": {
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     }
    ],
    "fact": {
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     "coverage": {
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      "unit": "plant x prime-mover x fuel rows"
     },
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     "fact_id": "plant:eia:6175#net_generation_mwh@2017",
     "label": "Net generation",
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     "metric": "net_generation_mwh",
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      "period_start": "2017-01-01T00:00:00Z",
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     },
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     "quality": "valid",
     "source_ref": "pudl-output",
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    },
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   },
   {
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     }
    ],
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     "basis": "Sum of EIA-923 annual net generation over the plant's unique prime-mover x energy-source rows; negative values (pumping, station use) retained",
     "coverage": {
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      "included": 1,
      "unit": "plant x prime-mover x fuel rows"
     },
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      "period_start": "2018-01-01T00:00:00Z",
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     "quality": "valid",
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   {
    "components": [
     {
      "energy_source": {
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      }
     }
    ],
    "fact": {
     "basis": "Sum of EIA-923 annual net generation over the plant's unique prime-mover x energy-source rows; negative values (pumping, station use) retained",
     "coverage": {
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      "included": 1,
      "unit": "plant x prime-mover x fuel rows"
     },
     "denominator": null,
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     "fact_id": "plant:eia:6175#net_generation_mwh@2019",
     "label": "Net generation",
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     "note": null,
     "period": {
      "hours": 8760,
      "kind": "calendar_year",
      "period_end": "2020-01-01T00:00:00Z",
      "period_start": "2019-01-01T00:00:00Z",
      "year": 2019
     },
     "precision": 0,
     "quality": "valid",
     "source_ref": "pudl-output",
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     "value": 2192833.0
    },
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   },
   {
    "components": [
     {
      "energy_source": {
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      "prime_mover": {
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     }
    ],
    "fact": {
     "basis": "Sum of EIA-923 annual net generation over the plant's unique prime-mover x energy-source rows; negative values (pumping, station use) retained",
     "coverage": {
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      "included": 1,
      "unit": "plant x prime-mover x fuel rows"
     },
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     "fact_id": "plant:eia:6175#net_generation_mwh@2020",
     "label": "Net generation",
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     "period": {
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      "kind": "calendar_year",
      "period_end": "2021-01-01T00:00:00Z",
      "period_start": "2020-01-01T00:00:00Z",
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     "quality": "valid",
     "source_ref": "pudl-output",
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   {
    "components": [
     {
      "energy_source": {
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      "prime_mover": {
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     }
    ],
    "fact": {
     "basis": "Sum of EIA-923 annual net generation over the plant's unique prime-mover x energy-source rows; negative values (pumping, station use) retained",
     "coverage": {
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      "included": 1,
      "unit": "plant x prime-mover x fuel rows"
     },
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     "fact_id": "plant:eia:6175#net_generation_mwh@2021",
     "label": "Net generation",
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     "period": {
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      "period_end": "2022-01-01T00:00:00Z",
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      "year": 2021
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     "quality": "valid",
     "source_ref": "pudl-output",
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   {
    "components": [
     {
      "energy_source": {
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     }
    ],
    "fact": {
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     "coverage": {
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      "unit": "plant x prime-mover x fuel rows"
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     "fact_id": "plant:eia:6175#net_generation_mwh@2022",
     "label": "Net generation",
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     "missing_reason": null,
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     "period": {
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      "period_end": "2023-01-01T00:00:00Z",
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     "quality": "valid",
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   {
    "components": [
     {
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      "prime_mover": {
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     }
    ],
    "fact": {
     "basis": "Sum of EIA-923 annual net generation over the plant's unique prime-mover x energy-source rows; negative values (pumping, station use) retained",
     "coverage": {
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      "included": 1,
      "unit": "plant x prime-mover x fuel rows"
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     "fact_id": "plant:eia:6175#net_generation_mwh@2023",
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     "missing_reason": null,
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     "period": {
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      "kind": "calendar_year",
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     "quality": "valid",
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     }
    ],
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     "coverage": {
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  ],
  "monthly": {
   "available": true,
   "basis": "Sum of unique plant x prime-mover x fuel rows per month; local calendar months as published by EIA; only years in which the respondent reported monthly (M) or monthly values once per year (AM)",
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   "frequency_sources": {
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   "label": "Net generation, monthly",
   "locator": "out_eia923__monthly_generation_fuel_combined.parquet; plant_id_eia=6175",
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   "period_kind": "calendar_month",
   "series_id": "plant:eia:6175#net_generation_mwh/monthly",
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   "unit": "MWh",
   "values": [
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     "hours": 744,
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     "period_start": "2015-01-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 186514.0
    },
    {
     "hours": 672,
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     "period_end": "2015-03-01T00:00:00Z",
     "period_start": "2015-02-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
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     "period_start": "2015-03-01T00:00:00Z",
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     "rows": 1,
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    {
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     "quality": "valid",
     "rows": 1,
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    {
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     "period_end": "2015-06-01T00:00:00Z",
     "period_start": "2015-05-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
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    {
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     "period_end": "2015-07-01T00:00:00Z",
     "period_start": "2015-06-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
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    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2015-08-01T00:00:00Z",
     "period_start": "2015-07-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
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    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2015-09-01T00:00:00Z",
     "period_start": "2015-08-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 61657.0
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     "hours": 744,
     "maturity": "final",
     "period_end": "2022-09-01T00:00:00Z",
     "period_start": "2022-08-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
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    },
    {
     "hours": 720,
     "maturity": "final",
     "period_end": "2022-10-01T00:00:00Z",
     "period_start": "2022-09-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
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    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2022-11-01T00:00:00Z",
     "period_start": "2022-10-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 80956.0
    },
    {
     "hours": 720,
     "maturity": "final",
     "period_end": "2022-12-01T00:00:00Z",
     "period_start": "2022-11-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
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    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2023-01-01T00:00:00Z",
     "period_start": "2022-12-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 94811.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2023-02-01T00:00:00Z",
     "period_start": "2023-01-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 82532.0
    },
    {
     "hours": 672,
     "maturity": "final",
     "period_end": "2023-03-01T00:00:00Z",
     "period_start": "2023-02-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 110295.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2023-04-01T00:00:00Z",
     "period_start": "2023-03-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 134768.0
    },
    {
     "hours": 720,
     "maturity": "final",
     "period_end": "2023-05-01T00:00:00Z",
     "period_start": "2023-04-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 84639.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2023-06-01T00:00:00Z",
     "period_start": "2023-05-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 381903.0
    },
    {
     "hours": 720,
     "maturity": "final",
     "period_end": "2023-07-01T00:00:00Z",
     "period_start": "2023-06-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 157212.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2023-08-01T00:00:00Z",
     "period_start": "2023-07-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 100919.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2023-09-01T00:00:00Z",
     "period_start": "2023-08-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 84543.0
    },
    {
     "hours": 720,
     "maturity": "final",
     "period_end": "2023-10-01T00:00:00Z",
     "period_start": "2023-09-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 111230.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2023-11-01T00:00:00Z",
     "period_start": "2023-10-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
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    },
    {
     "hours": 720,
     "maturity": "final",
     "period_end": "2023-12-01T00:00:00Z",
     "period_start": "2023-11-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 100781.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2024-01-01T00:00:00Z",
     "period_start": "2023-12-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 102598.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2024-02-01T00:00:00Z",
     "period_start": "2024-01-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 115773.0
    },
    {
     "hours": 696,
     "maturity": "final",
     "period_end": "2024-03-01T00:00:00Z",
     "period_start": "2024-02-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 161029.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2024-04-01T00:00:00Z",
     "period_start": "2024-03-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 192364.0
    },
    {
     "hours": 720,
     "maturity": "final",
     "period_end": "2024-05-01T00:00:00Z",
     "period_start": "2024-04-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 71557.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2024-06-01T00:00:00Z",
     "period_start": "2024-05-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 78464.0
    },
    {
     "hours": 720,
     "maturity": "final",
     "period_end": "2024-07-01T00:00:00Z",
     "period_start": "2024-06-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 104712.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2024-08-01T00:00:00Z",
     "period_start": "2024-07-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 90424.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2024-09-01T00:00:00Z",
     "period_start": "2024-08-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 94960.0
    },
    {
     "hours": 720,
     "maturity": "final",
     "period_end": "2024-10-01T00:00:00Z",
     "period_start": "2024-09-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 93934.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2024-11-01T00:00:00Z",
     "period_start": "2024-10-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 76806.0
    },
    {
     "hours": 720,
     "maturity": "final",
     "period_end": "2024-12-01T00:00:00Z",
     "period_start": "2024-11-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 87356.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2025-01-01T00:00:00Z",
     "period_start": "2024-12-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 106142.0
    }
   ],
   "years_eligible": [
    2015,
    2016,
    2017,
    2018,
    2019,
    2020,
    2021,
    2022,
    2023,
    2024
   ],
   "years_excluded": []
  },
  "note": "Sum of unique plant x prime-mover x fuel rows per year; negative values retained; missing years absent, not zero; no monthly curve inferred",
  "reporter_frequency": "monthly"
 },
 "ownership_paths": {
  "available": false,
  "note": "Direct owners and their shares are in ownership_rollup and on each generator; no parent chain is curated for this plant, so no parent-attributed MW exists and none is implied",
  "reason": "parent_chain_not_curated",
  "source_ref": "ownership-parents"
 },
 "ownership_rollup": {
  "basis": "Operating nameplate MW x ownership fraction, once per generator; reported schedule or EIA-860 schedule-4 default",
  "note": null,
  "owners": [
   {
    "bases": [
     "eia860_schedule4_default"
    ],
    "generators": 6,
    "owned_mw": 810.0,
    "owner": {
     "entity_type": "F",
     "entity_type_label": "Federally-owned utility",
     "id": "org:eia:19400",
     "name": "U.S. Army Corps of Engineers, Northwestern Division"
    }
   }
  ],
  "unassigned_mw": 0.0,
  "unknown_coverage": {
   "eligible": 0,
   "included": 0,
   "unit": "native rows"
  },
  "unknown_mw": 0.0
 },
 "release_id": "20260929T050546Z-51ae0f7d3c78",
 "reporting": {
  "ba": {
   "code": "BPAT",
   "id": "ba:eia:BPAT",
   "name": "Bonneville Power Administration"
  },
  "ba_code_source": "BPAT",
  "frame_role": "core",
  "in_geographic_core": true,
  "in_reporting_frame": true,
  "inclusion_reason": "ba_in_frame_v1",
  "membership_review_status": "source",
  "reporter_frequency": "M"
 },
 "resource_group": "hydro",
 "schema_version": "1.41.0",
 "source_name": "Lower Granite",
 "sources": [
  "curated-aliases",
  "ornl-eha-2026",
  "ornl-hilarri-v4",
  "pudl-generators",
  "pudl-output",
  "pudl-ownership",
  "pudl-plants",
  "usace-cwms-history",
  "usace-dataquery-history",
  "usace-nid"
 ],
 "storage": null,
 "type": "plant",
 "updated_reason": null,
 "water": {
  "attribution": "U.S. Army Corps of Engineers, Northwestern Division, CWMS Data API (revised CBT series, as served at retrieval); U.S. Army Corps of Engineers, Northwestern Division, Dataquery 2.0 (revised CBT series, as served at retrieval)",
  "available": true,
  "checks": [
   {
    "id": "water.units_match_declared",
    "passed": true,
    "severity": "block"
   },
   {
    "id": "water.missing_stays_null",
    "passed": true,
    "severity": "block"
   },
   {
    "id": "water.location_key_verified",
    "passed": true,
    "severity": "review"
   },
   {
    "id": "water.series_complete",
    "passed": true,
    "severity": "review"
   }
  ],
  "episode": {
   "id": "january-2024-cold-spell",
   "path": "episodes/january-2024-cold-spell.json",
   "title": "January 2024 cold spell"
  },
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   "2024-01-19T20:00:00Z",
   "2024-01-19T21:00:00Z",
   "2024-01-19T22:00:00Z",
   "2024-01-19T23:00:00Z",
   "2024-01-20T00:00:00Z",
   "2024-01-20T01:00:00Z",
   "2024-01-20T02:00:00Z",
   "2024-01-20T03:00:00Z",
   "2024-01-20T04:00:00Z",
   "2024-01-20T05:00:00Z",
   "2024-01-20T06:00:00Z",
   "2024-01-20T07:00:00Z",
   "2024-01-20T08:00:00Z"
  ],
  "key": {
   "basis": "USACE's NIDID agency-alias group maps NID WA00349 (this plant's reviewed dam) to NWDP location LWG; CWMS location 'Lower Granite Lock and Dam' is a PROJECT in WA, 0.11 km from the EIA plant point; its name shares 'lower', 'granite', 'lock' with the NID dam name",
   "dam_names": [
    "Lower Granite Lock and Dam"
   ],
   "distance_km": 0.11,
   "failures": [],
   "group": "NIDID",
   "group_retrieved_at": "2026-09-29T04:58:57Z",
   "group_url": "https://cwms-data.usace.army.mil/cwms-data/location/group/NIDID?office=CWMS&category-id=Agency%20Aliases&group-office-id=CWMS",
   "nid_ids": [
    "WA00349"
   ],
   "reviewed_on": "2026-09-28",
   "reviewer": "claude-w52",
   "shared_name_tokens": [
    "lower",
    "granite",
    "lock"
   ],
   "verified": true
  },
  "license": "U.S. government work; public API, no terms stated",
  "location": {
   "horizontal_datum": "WGS84",
   "id": "LWG",
   "latitude": 46.660326,
   "location_kind": "PROJECT",
   "long_name": "Lower Granite Dam",
   "longitude": -117.42848,
   "office": "NWDP",
   "public_name": "Lower Granite Lock and Dam",
   "retrieved_at": "2026-09-29T05:00:30Z",
   "state_initial": "WA",
   "timezone_name": "US/Pacific",
   "url": "https://cwms-data.usace.army.mil/cwms-data/locations/LWG?office=NWDP",
   "vertical_datum": "NGVD29"
  },
  "naming_url": "https://www.hec.usace.army.mil/confluence/cwmsdocs/ccm/files/179601432/179602423/1/1705949779758/2016.03_CWMS_NamingStandard_March2016.pdf",
  "not_yet_included": [],
  "quality": "Each value keeps the CWMS quality code it was served with; code 0 is CWMS's code for an unscreened value. A value served with CDA's missing-value placeholder, or with a code that marks it missing or rejected, is shown as missing.",
  "reason": null,
  "revisions": "Neither service versions these series: USACE revises values in place, so a later retrieval can differ. These are the publisher's revised series as served at the retrieval time recorded with each query.",
  "scales": {
   "cfs": {
    "max": 39300.0,
    "min": 0.0
   },
   "ft": {
    "max": 737.06,
    "min": 735.18
   }
  },
  "series": [
   {
    "available": true,
    "convention": "hour_ending_average",
    "convention_text": "The mean over the hour ending at the stamp, the same hour-ending convention as the episode",
    "cwms_id": "LWG.Flow-Out.Ave.1Hour.1Hour.CBT-REV",
    "date_version_type": "UNVERSIONED",
    "expected": 240,
    "grain": "hour",
    "key": "outflow",
    "label": "Outflow",
    "max": 39300.0,
    "min": 13300.0,
    "missing": [],
    "parameter": "Flow-Out",
    "present": 240,
    "quality_codes": [
     0
    ],
    "query_url": "https://cwms-data.usace.army.mil/cwms-data/timeseries?office=NWDP&name=LWG.Flow-Out.Ave.1Hour.1Hour.CBT-REV&begin=2024-01-10T08:00:00Z&end=2024-01-20T08:00:00Z&unit=EN&page-size=10000",
    "reason": null,
    "retrieved_at": "2026-09-29T05:01:21Z",
    "service": "cwms",
    "sha256": "a7034e7f786c232568d95b2e2ff80588656df308b1addd5127a1c48ccf3d9827",
    "source_ref": "usace-cwms-history",
    "stamp_rule": "The CWMS Data API serves this stamp in UTC (epoch milliseconds); it is shown as served",
    "time_zone": "US/Pacific",
    "unit": "cfs",
    "values": [
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    ],
    "vertical_datum": null
   },
   {
    "available": true,
    "convention": "hour_ending_average",
    "convention_text": "The mean over the hour ending at the stamp, the same hour-ending convention as the episode",
    "cwms_id": "LWG.Flow-Spill.Ave.1Hour.1Hour.CBT-REV",
    "date_version_type": "UNVERSIONED",
    "expected": 240,
    "grain": "hour",
    "key": "spill",
    "label": "Spill",
    "max": 5500.0,
    "min": 0.0,
    "missing": [],
    "parameter": "Flow-Spill",
    "present": 240,
    "quality_codes": [
     0
    ],
    "query_url": "https://cwms-data.usace.army.mil/cwms-data/timeseries?office=NWDP&name=LWG.Flow-Spill.Ave.1Hour.1Hour.CBT-REV&begin=2024-01-10T08:00:00Z&end=2024-01-20T08:00:00Z&unit=EN&page-size=10000",
    "reason": null,
    "retrieved_at": "2026-09-29T05:01:23Z",
    "service": "cwms",
    "sha256": "4d5ed2546a1644927d9947108f032b8596da700f5536f9c1f064ee123c79147d",
    "source_ref": "usace-cwms-history",
    "stamp_rule": "The CWMS Data API serves this stamp in UTC (epoch milliseconds); it is shown as served",
    "time_zone": "US/Pacific",
    "unit": "cfs",
    "values": [
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    ],
    "vertical_datum": null
   },
   {
    "available": true,
    "convention": "instantaneous",
    "convention_text": "The reading at the stamp: the end of each hour shown",
    "cwms_id": "LWG.Elev-Forebay.Inst.1Hour.0.CBT-REV",
    "date_version_type": null,
    "expected": 240,
    "grain": "hour",
    "key": "forebay_elevation",
    "label": "Forebay elevation",
    "max": 737.06,
    "min": 735.18,
    "missing": [],
    "parameter": "Elev-Forebay",
    "present": 240,
    "quality_codes": [
     0
    ],
    "query_url": "https://www.nwd-wc.usace.army.mil/dd/common/web_service/webexec/getjson?query=%5B%22LWG.Elev-Forebay.Inst.1Hour.0.CBT-REV%22%5D&startdate=2024-01-10&enddate=2024-01-20",
    "reason": null,
    "retrieved_at": "2026-09-29T05:04:26Z",
    "service": "dataquery",
    "sha256": "e6a6f21ffc1fc97dcad418412cc7df7e913721211005ccba3e74598941ee67bb",
    "source_ref": "usace-dataquery-history",
    "stamp_rule": "Dataquery writes this stamp in PST, UTC-8 all year with no daylight saving and no offset in the stamp; it is shown at the stamp +8 h, in UTC",
    "time_zone": "PST",
    "unit": "ft",
    "values": [
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    "vertical_datum": "NGVD29"
   }
  ],
  "services": [
   {
    "attribution": "U.S. Army Corps of Engineers, Northwestern Division, CWMS Data API (revised CBT series, as served at retrieval)",
    "landing_url": "https://cwms-data.usace.army.mil/cwms-data/",
    "license": "U.S. government work; public API, no terms stated",
    "name": "CWMS Data API",
    "service": "cwms",
    "source_ref": "usace-cwms-history"
   },
   {
    "attribution": "U.S. Army Corps of Engineers, Northwestern Division, Dataquery 2.0 (revised CBT series, as served at retrieval)",
    "landing_url": "https://www.nwd-wc.usace.army.mil/dd/common/dataquery/www/",
    "license": "U.S. government work; public web service, no terms stated",
    "name": "Dataquery",
    "service": "dataquery",
    "source_ref": "usace-dataquery-history"
   }
  ],
  "source_ref": "usace-cwms-history",
  "spec_url": "https://cwms-data.usace.army.mil/cwms-data/swagger-ui.html",
  "statement": "USACE's revised (CBT-REV) river and reservoir series at the project this plant belongs to: each as the CWMS Data API served it or, where that API served none, as USACE's Dataquery served it, and each names its service. The two are never mixed within a series. Water quantities, not generation: neither serves a generation series for this project, and the plant's generation on this page is EIA-923's.",
  "window": {
   "end": "2024-01-20T08:00:00Z",
   "first_hour": "2024-01-10T09:00:00Z",
   "hours": 240,
   "last_hour": "2024-01-20T08:00:00Z",
   "rule": "The window is the half-open UTC interval [start, end). The source stamps an hour at its end, so the window holds the hours stamped after start up to and including end.",
   "start": "2024-01-10T08:00:00Z"
  }
 }
}