{
 "aliases": [
  {
   "relation": "exact",
   "review_state": "source",
   "source_entity_id": "3082",
   "source_ref": "pudl-plants"
  },
  {
   "basis": "EHA 2026 EIA_PtID 3082 = EIA plant; state OR; EHA point 0.22 km from EIA point; names share a token; HILARRI v4 links EHA id to NID OR00011 (John Day Lock and Dam, Columbia River), NID point 0.20 km from EIA point; NID purposes: Navigation;Other;Irrigation;Recreation;Hydroelectric;Flood Risk Reduction",
   "evidence_url": "https://hydrosource.ornl.gov/data/datasets/hilarri-v4/",
   "kind": "hydro_plant",
   "name": "John Day",
   "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": "hc0242_p01",
   "source_ref": "ornl-eha-2026",
   "source_url": "https://hydrosource.ornl.gov/data/datasets/eha-plant-2026/",
   "water": "Columbia River"
  },
  {
   "basis": "EHA 2026 EIA_PtID 3082 = EIA plant; state OR; EHA point 0.22 km from EIA point; names share a token; HILARRI v4 links EHA id to NID OR00011 (John Day Lock and Dam, Columbia River), NID point 0.20 km from EIA point; NID purposes: Navigation;Other;Irrigation;Recreation;Hydroelectric;Flood Risk Reduction",
   "evidence_url": "https://hydrosource.ornl.gov/data/datasets/hilarri-v4/",
   "kind": "dam",
   "name": "John Day 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": "OR00011",
   "source_ref": "usace-nid",
   "source_url": "https://nid.sec.usace.army.mil/"
  },
  {
   "basis": "EHA 2026 EIA_PtID 3082 = EIA plant; state OR; EHA point 0.22 km from EIA point; names share a token; HILARRI v4 links EHA id to NID OR00011 (John Day Lock and Dam, Columbia River), NID point 0.20 km from EIA point; NID purposes: Navigation;Other;Irrigation;Recreation;Hydroelectric;Flood Risk Reduction",
   "evidence_url": "https://hydrosource.ornl.gov/data/datasets/hilarri-v4/",
   "ids": {
    "grand_id": null,
    "huc12": "170701050103",
    "nhdplusv2_comid": "24232974"
   },
   "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": "2221",
   "source_ref": "ornl-hilarri-v4",
   "source_url": "https://hydrosource.ornl.gov/data/datasets/hilarri-v4/"
  },
  {
   "kind": "display_name",
   "note": "usace project name",
   "relation": "exact",
   "review_state": "reviewed",
   "reviewed_on": "2026-09-18",
   "source_entity_id": "John Day Lock and Dam",
   "source_ref": "curated-aliases",
   "source_url": "https://www.nwp.usace.army.mil/Locations/Columbia-River/"
  }
 ],
 "citation_path": "citations/plant~eia~3082.html",
 "context": {
  "nearby_bpa_lines": [
   {
    "distance_km": 0.21,
    "id": "line:bpa:JDPH-JDAY-4",
    "name": "John Day PH-John Day No 4",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 0.32,
    "id": "line:bpa:JDPH-JDAY-3",
    "name": "John Day PH-John Day No 3",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 0.44,
    "id": "line:bpa:JDPH-JDAY-2",
    "name": "John Day PH-John Day No 2",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 0.55,
    "id": "line:bpa:JDPH-JDAY-1",
    "name": "John Day PH-John Day No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 0.67,
    "id": "line:bpa:JDSS-JDAY-1",
    "name": "John Day Station Service-John Day No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "under-100",
    "voltage_kv": 13.2
   },
   {
    "distance_km": 1.18,
    "id": "line:bpa:MCNY-JDAY-2",
    "name": "McNary-John Day No 2",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 1.25,
    "id": "line:bpa:HORS-HRVL-1",
    "name": "Horse Heaven-Harvalum No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "230",
    "voltage_kv": 230.0
   },
   {
    "distance_km": 1.26,
    "id": "line:bpa:HRVL-BIGE-1",
    "name": "Harvalum-Big Eddy No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "230",
    "voltage_kv": 230.0
   },
   {
    "distance_km": 1.29,
    "id": "line:bpa:MCNY-ROSS-1",
    "name": "McNary-Ross No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "345",
    "voltage_kv": 345.0
   },
   {
    "distance_km": 1.33,
    "id": "line:bpa:RKCR-JDAY-1",
    "name": "Rock Creek-John Day No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 1.63,
    "id": "line:bpa:SLAT-JDAY-1",
    "name": "Slatt-John Day 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:JDPH-JDAY-4",
    "name": "John Day PH-John Day No 4",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 0.32,
    "id": "line:bpa:JDPH-JDAY-3",
    "name": "John Day PH-John Day No 3",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 0.44,
    "id": "line:bpa:JDPH-JDAY-2",
    "name": "John Day PH-John Day No 2",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 0.55,
    "id": "line:bpa:JDPH-JDAY-1",
    "name": "John Day PH-John Day No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 0.67,
    "id": "line:bpa:JDSS-JDAY-1",
    "name": "John Day Station Service-John Day No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "under-100",
    "voltage_kv": 13.2
   },
   {
    "distance_km": 1.11,
    "id": "line:hifld:206011",
    "name": "PUD NO 1 OF KLICKITAT COUNTY line 206011",
    "source_ref": "hifld-lines-2021",
    "type": "line",
    "voltage_class": "115-161",
    "voltage_kv": 115.0
   },
   {
    "distance_km": 1.18,
    "id": "line:bpa:MCNY-JDAY-2",
    "name": "McNary-John Day No 2",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 1.25,
    "id": "line:bpa:HORS-HRVL-1",
    "name": "Horse Heaven-Harvalum No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "230",
    "voltage_kv": 230.0
   },
   {
    "distance_km": 1.26,
    "id": "line:bpa:HRVL-BIGE-1",
    "name": "Harvalum-Big Eddy No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "230",
    "voltage_kv": 230.0
   },
   {
    "distance_km": 1.29,
    "id": "line:bpa:MCNY-ROSS-1",
    "name": "McNary-Ross No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "345",
    "voltage_kv": 345.0
   },
   {
    "distance_km": 1.33,
    "id": "line:bpa:RKCR-JDAY-1",
    "name": "Rock Creek-John Day No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 1.63,
    "id": "line:bpa:SLAT-JDAY-1",
    "name": "Slatt-John Day No 1",
    "source_ref": "bpa-lines",
    "type": "line",
    "voltage_class": "500",
    "voltage_kv": 500.0
   },
   {
    "distance_km": 1.64,
    "id": "line:hifld:206007",
    "name": "PUD NO 1 OF KLICKITAT COUNTY line 206007",
    "source_ref": "hifld-lines-2021",
    "type": "line",
    "voltage_class": "230",
    "voltage_kv": 230.0
   }
  ],
  "nearby_substations": [
   {
    "distance_km": 1.11,
    "id": "substation:hifld:201192",
    "kind": "SUBSTATION",
    "max_kv": 115.0,
    "name": "JOHN DAY CONSTRUCTION",
    "source_ref": "hifld-substations-2022",
    "type": "substation"
   },
   {
    "distance_km": 1.64,
    "id": "substation:hifld:200496",
    "kind": "SUBSTATION",
    "max_kv": 230.0,
    "name": "HARVALUM",
    "source_ref": "hifld-substations-2022",
    "type": "substation"
   }
  ],
  "territories": [
   {
    "id": "territory:waecy:39",
    "name": "Klickitat County PUD #1",
    "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": 16,
  "generators_operating": 12,
  "generators_published": 16,
  "output_years": [
   2015,
   2016,
   2017,
   2018,
   2019,
   2020,
   2021,
   2022,
   2023,
   2024
  ],
  "ownership_known_generators": 16
 },
 "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": 12,
    "included": 12,
    "unit": "operating generators"
   },
   "denominator": null,
   "evidence": "reported",
   "fact_id": "plant:eia:3082#nameplate_mw_op@2024",
   "label": "Nameplate capacity, operating generators",
   "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=3082",
   "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": 1620.0
  },
  {
   "basis": "Generator rows for the plant in the inventory year, any status",
   "coverage": null,
   "denominator": null,
   "evidence": "reported",
   "fact_id": "plant:eia:3082#generator_count@2024",
   "label": "Generators listed",
   "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=3082",
   "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": 16.0
  },
  {
   "basis": "Generator rows with status code OP",
   "coverage": null,
   "denominator": null,
   "evidence": "reported",
   "fact_id": "plant:eia:3082#generator_count_op@2024",
   "label": "Operating generators",
   "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=3082",
   "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": 12.0
  },
  {
   "basis": "Sum of generator nameplate MW with status category existing and code other than OP (SB, OS, OA)",
   "coverage": null,
   "denominator": null,
   "evidence": "reported",
   "fact_id": "plant:eia:3082#nameplate_mw_existing_not_operating@2024",
   "label": "Nameplate capacity, existing but not operating (standby / out of service)",
   "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=3082",
   "maturity": "final",
   "method": "derived",
   "metric": "nameplate_mw_existing_not_operating",
   "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": 540.0
  },
  {
   "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:3082#net_generation_mwh@2024",
   "label": "Net generation",
   "locator": "out_eia923__yearly_generation_fuel_combined.parquet; report_date=2024-01-01; plant_id_eia=3082",
   "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": 6956330.0
  },
  {
   "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": 1620.0
   },
   "evidence": "reported",
   "fact_id": "plant:eia:3082#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": 0.48884686523195936
  }
 ],
 "generators": [
  {
   "dates": {
    "note": "EIA-860 reports month and year; day is a placeholder",
    "operating": "1968-08-01",
    "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:3082:1#capacity_mw@2024",
     "label": "Nameplate capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=3082; 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:3082:1#summer_capacity_mw@2024",
     "label": "Net summer capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=3082; 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:3082:1#winter_capacity_mw@2024",
     "label": "Net winter capacity",
     "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=3082; 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:3082:1",
   "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=3082; 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",
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    "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=3082; generator_id=9; 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:3082",
 "interconnection_requests": [],
 "latest": {
  "changed_on": "2026-08-01",
  "changes_since_baseline": [
   {
    "baseline_capacity_mw": 135.0,
    "baseline_status": "OA",
    "change": "status_changed",
    "changed_on": "2026-08-01",
    "generator_id": "10",
    "latest_capacity_mw": 135.0,
    "latest_status": "OS",
    "planned_operating_date": null,
    "retirement_date": null
   },
   {
    "baseline_capacity_mw": 135.0,
    "baseline_status": "OS",
    "change": "status_changed",
    "changed_on": "2026-08-01",
    "generator_id": "14",
    "latest_capacity_mw": 135.0,
    "latest_status": "OA",
    "planned_operating_date": null,
    "retirement_date": null
   },
   {
    "baseline_capacity_mw": 135.0,
    "baseline_status": "OP",
    "change": "status_changed",
    "changed_on": "2026-08-01",
    "generator_id": "3",
    "latest_capacity_mw": 135.0,
    "latest_status": "OA",
    "planned_operating_date": null,
    "retirement_date": null
   },
   {
    "baseline_capacity_mw": 135.0,
    "baseline_status": "OS",
    "change": "entered_service",
    "changed_on": "2026-08-01",
    "generator_id": "7",
    "latest_capacity_mw": 135.0,
    "latest_status": "OP",
    "planned_operating_date": null,
    "retirement_date": null
   },
   {
    "baseline_capacity_mw": 135.0,
    "baseline_status": "OP",
    "change": "status_changed",
    "changed_on": "2026-08-01",
    "generator_id": "8",
    "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": 16,
     "included": 16,
     "unit": "current and historical generators",
     "unknown_current_state": 0
    },
    "denominator": null,
    "evidence": "reported",
    "fact_id": "plant:eia:3082#latest_nameplate_mw_op",
    "label": "Operating nameplate capacity, latest inventory",
    "locator": "Preliminary Monthly Electric Generator Inventory, August 2026; plant_id_eia=3082; 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": 1485.0
   },
   {
    "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": 16,
     "included": 16,
     "unit": "current and historical generators"
    },
    "denominator": null,
    "evidence": "reported",
    "fact_id": "plant:eia:3082#latest_nameplate_mw_planned",
    "label": "Planned nameplate capacity, latest inventory",
    "locator": "Preliminary Monthly Electric Generator Inventory, August 2026; plant_id_eia=3082; 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": 16,
     "included": 16,
     "unit": "current and historical generators"
    },
    "denominator": null,
    "evidence": "reported",
    "fact_id": "plant:eia:3082#latest_nameplate_mw_retired",
    "label": "Retired or cancelled nameplate capacity, latest inventory",
    "locator": "Preliminary Monthly Electric Generator Inventory, August 2026; plant_id_eia=3082; 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": 135.0,
   "mw_retired_or_cancelled": null,
   "units_entered_service": 1,
   "units_new_since_baseline": 0,
   "units_retired_or_cancelled": 0
  },
  "units": [
   {
    "capacity_mw": 135.0,
    "changed_on": "2026-08-01",
    "dates": {
     "operating": "1968-08-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "1",
    "id": "generator:eia:3082:1",
    "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": "1969-09-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "10",
    "id": "generator:eia:3082:10",
    "in_baseline": true,
    "life": "standby_or_out_of_service",
    "resource_group": "hydro",
    "status": {
     "category": "existing",
     "code": "OS",
     "label": "out_of_service_long_term"
    },
    "technology": "Conventional Hydroelectric"
   },
   {
    "capacity_mw": 135.0,
    "changed_on": "2026-08-01",
    "dates": {
     "operating": "1970-03-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "11",
    "id": "generator:eia:3082:11",
    "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": "1970-05-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "12",
    "id": "generator:eia:3082:12",
    "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": "1970-12-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "13",
    "id": "generator:eia:3082:13",
    "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": "1971-01-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "14",
    "id": "generator:eia:3082:14",
    "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": "1971-10-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "15",
    "id": "generator:eia:3082:15",
    "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": "1971-12-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "16",
    "id": "generator:eia:3082:16",
    "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": "1968-09-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "2",
    "id": "generator:eia:3082:2",
    "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": "1968-11-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "3",
    "id": "generator:eia:3082:3",
    "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": "1968-12-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "4",
    "id": "generator:eia:3082:4",
    "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": "1969-02-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "5",
    "id": "generator:eia:3082:5",
    "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": "1969-03-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "6",
    "id": "generator:eia:3082:6",
    "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": "1969-04-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "7",
    "id": "generator:eia:3082:7",
    "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": "1969-06-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "8",
    "id": "generator:eia:3082:8",
    "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": "1969-08-01",
     "planned_operating": null,
     "planned_retirement": null,
     "precision": "month",
     "retirement": null
    },
    "generator_id": "9",
    "id": "generator:eia:3082:9",
    "in_baseline": true,
    "life": "operating",
    "resource_group": "hydro",
    "status": {
     "category": "existing",
     "code": "OP",
     "label": "operating"
    },
    "technology": "Conventional Hydroelectric"
   }
  ]
 },
 "location": {
  "city": null,
  "county": "Sherman",
  "datum": null,
  "lat": 45.71644,
  "locator": "out_eia__yearly_plants.parquet; report_date=2024-01-01; plant_id_eia=3082",
  "lon": -120.6941,
  "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": "OR",
  "timezone": "America/Los_Angeles"
 },
 "name": "John Day 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",
      "net_generation_mwh": 8679505.0,
      "prime_mover": {
       "code": "HY",
       "label": "hydraulic_turbine"
      }
     }
    ],
    "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": {
      "eligible": 1,
      "included": 1,
      "unit": "plant x prime-mover x fuel rows"
     },
     "denominator": null,
     "evidence": "reported",
     "fact_id": "plant:eia:3082#net_generation_mwh@2015",
     "label": "Net generation",
     "locator": "out_eia923__yearly_generation_fuel_combined.parquet; report_date=2015-01-01; plant_id_eia=3082",
     "maturity": "final",
     "method": "derived",
     "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
     },
     "precision": 0,
     "quality": "valid",
     "source_ref": "pudl-output",
     "unit": "MWh",
     "value": 8679505.0
    },
    "rows": 1,
    "year": 2015
   },
   {
    "components": [
     {
      "energy_source": {
       "code": "WAT",
       "fuel_group": "hydro",
       "label": "water"
      },
      "maturity": "final",
      "net_generation_mwh": 9171812.0,
      "prime_mover": {
       "code": "HY",
       "label": "hydraulic_turbine"
      }
     }
    ],
    "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": {
      "eligible": 1,
      "included": 1,
      "unit": "plant x prime-mover x fuel rows"
     },
     "denominator": null,
     "evidence": "reported",
     "fact_id": "plant:eia:3082#net_generation_mwh@2016",
     "label": "Net generation",
     "locator": "out_eia923__yearly_generation_fuel_combined.parquet; report_date=2016-01-01; plant_id_eia=3082",
     "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": 9171812.0
    },
    "rows": 1,
    "year": 2016
   },
   {
    "components": [
     {
      "energy_source": {
       "code": "WAT",
       "fuel_group": "hydro",
       "label": "water"
      },
      "maturity": "final",
      "net_generation_mwh": 10506957.0,
      "prime_mover": {
       "code": "HY",
       "label": "hydraulic_turbine"
      }
     }
    ],
    "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": {
      "eligible": 1,
      "included": 1,
      "unit": "plant x prime-mover x fuel rows"
     },
     "denominator": null,
     "evidence": "reported",
     "fact_id": "plant:eia:3082#net_generation_mwh@2017",
     "label": "Net generation",
     "locator": "out_eia923__yearly_generation_fuel_combined.parquet; report_date=2017-01-01; plant_id_eia=3082",
     "maturity": "final",
     "method": "derived",
     "metric": "net_generation_mwh",
     "missing_reason": null,
     "note": null,
     "period": {
      "hours": 8760,
      "kind": "calendar_year",
      "period_end": "2018-01-01T00:00:00Z",
      "period_start": "2017-01-01T00:00:00Z",
      "year": 2017
     },
     "precision": 0,
     "quality": "valid",
     "source_ref": "pudl-output",
     "unit": "MWh",
     "value": 10506957.0
    },
    "rows": 1,
    "year": 2017
   },
   {
    "components": [
     {
      "energy_source": {
       "code": "WAT",
       "fuel_group": "hydro",
       "label": "water"
      },
      "maturity": "final",
      "net_generation_mwh": 9192949.0,
      "prime_mover": {
       "code": "HY",
       "label": "hydraulic_turbine"
      }
     }
    ],
    "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": {
      "eligible": 1,
      "included": 1,
      "unit": "plant x prime-mover x fuel rows"
     },
     "denominator": null,
     "evidence": "reported",
     "fact_id": "plant:eia:3082#net_generation_mwh@2018",
     "label": "Net generation",
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    {
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    {
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    {
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    {
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    {
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     "maturity": "final",
     "period_end": "2023-07-01T00:00:00Z",
     "period_start": "2023-06-01T00:00:00Z",
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    {
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     "maturity": "final",
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    {
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    {
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    {
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    {
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     "period_end": "2024-01-01T00:00:00Z",
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    {
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    {
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    {
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     "period_end": "2024-04-01T00:00:00Z",
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     "quality": "valid",
     "rows": 1,
     "value": 716253.0
    },
    {
     "hours": 720,
     "maturity": "final",
     "period_end": "2024-05-01T00:00:00Z",
     "period_start": "2024-04-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 549590.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2024-06-01T00:00:00Z",
     "period_start": "2024-05-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 562242.0
    },
    {
     "hours": 720,
     "maturity": "final",
     "period_end": "2024-07-01T00:00:00Z",
     "period_start": "2024-06-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 615825.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2024-08-01T00:00:00Z",
     "period_start": "2024-07-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 563319.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2024-09-01T00:00:00Z",
     "period_start": "2024-08-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 553222.0
    },
    {
     "hours": 720,
     "maturity": "final",
     "period_end": "2024-10-01T00:00:00Z",
     "period_start": "2024-09-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 406923.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2024-11-01T00:00:00Z",
     "period_start": "2024-10-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 429007.0
    },
    {
     "hours": 720,
     "maturity": "final",
     "period_end": "2024-12-01T00:00:00Z",
     "period_start": "2024-11-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 618945.0
    },
    {
     "hours": 744,
     "maturity": "final",
     "period_end": "2025-01-01T00:00:00Z",
     "period_start": "2024-12-01T00:00:00Z",
     "quality": "valid",
     "rows": 1,
     "value": 709740.0
    }
   ],
   "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": 12,
    "owned_mw": 1620.0,
    "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": "John Day",
 "sources": [
  "curated-aliases",
  "ornl-eha-2026",
  "ornl-hilarri-v4",
  "pudl-generators",
  "pudl-output",
  "pudl-ownership",
  "pudl-plants",
  "usace-nid"
 ],
 "storage": null,
 "type": "plant",
 "updated_reason": null,
 "water": null
}