{ "aliases": [ { "relation": "exact", "review_state": "source", "source_entity_id": "6163", "source_ref": "pudl-plants" }, { "basis": "EHA 2026 EIA_PtID 6163 = EIA plant; state WA; EHA point 0.00 km from EIA point; names share a token; HILARRI v4 links EHA id to NID WA00262 (Grand Coulee Dam, Columbia River), NID point 0.26 km from EIA point; NID purposes: Flood Risk Reduction;Irrigation", "evidence_url": "https://hydrosource.ornl.gov/data/datasets/hilarri-v4/", "kind": "hydro_plant", "name": "Grand Coulee", "note": "Power plant is included in the EHA. Hydropower is not reported as a purpose in any dam inventory.", "relation": "exact", "review_state": "reviewed", "reviewed_on": "2026-09-21", "source_entity_id": "hc0021_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 6163 = EIA plant; state WA; EHA point 0.00 km from EIA point; names share a token; HILARRI v4 links EHA id to NID WA00262 (Grand Coulee Dam, Columbia River), NID point 0.26 km from EIA point; NID purposes: Flood Risk Reduction;Irrigation", "evidence_url": "https://hydrosource.ornl.gov/data/datasets/hilarri-v4/", "kind": "dam", "name": "Grand Coulee Dam", "note": "Power plant is included in the EHA. Hydropower is not reported as a purpose in any dam inventory.", "relation": "component", "review_state": "reviewed", "reviewed_on": "2026-09-21", "source_entity_id": "WA00262", "source_ref": "usace-nid", "source_url": "https://nid.sec.usace.army.mil/" }, { "basis": "EHA 2026 EIA_PtID 6163 = EIA plant; state WA; EHA point 0.00 km from EIA point; names share a token; HILARRI v4 links EHA id to NID WA00262 (Grand Coulee Dam, Columbia River), NID point 0.26 km from EIA point; NID purposes: Flood Risk Reduction;Irrigation", "evidence_url": "https://hydrosource.ornl.gov/data/datasets/hilarri-v4/", "ids": { "grand_id": "310", "huc12": "170200050203", "nhdplusv2_comid": "23057946" }, "kind": "water_links", "name": null, "note": "Power plant is included in the EHA. Hydropower is not reported as a purpose in any dam inventory.", "relation": "exact", "review_state": "reviewed", "reviewed_on": "2026-09-21", "source_entity_id": "2279", "source_ref": "ornl-hilarri-v4", "source_url": "https://hydrosource.ornl.gov/data/datasets/hilarri-v4/" }, { "basis": "USACE's NIDID agency-alias group maps NID WA00262 (this plant's reviewed dam) to NWDP location GCL; CWMS location 'Grand Coulee Dam' is a PROJECT in WA, 0.26 km from the EIA plant point; its name shares 'grand', 'coulee' 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": "Grand Coulee Dam", "note": null, "office": "NWDP", "relation": "component", "review_state": "reviewed", "reviewed_on": "2026-09-27", "source_entity_id": "GCL", "source_ref": "usace-cwms-history", "source_url": "https://cwms-data.usace.army.mil/cwms-data/locations/GCL?office=NWDP" }, { "kind": "display_name", "note": "operator name for the dam", "relation": "exact", "review_state": "reviewed", "reviewed_on": "2026-09-18", "source_entity_id": "Grand Coulee Dam", "source_ref": "curated-aliases", "source_url": "https://www.usbr.gov/pn/grandcoulee/" } ], "citation_path": "citations/plant~eia~6163.html", "context": { "nearby_bpa_lines": [ { "distance_km": 1.22, "id": "line:bpa:GCOU-OKAN-2", "name": "Grand Coulee-Okanogan No 2", "source_ref": "bpa-lines", "type": "line", "voltage_class": "115-161", "voltage_kv": 115.0 }, { "distance_km": 1.27, "id": "line:bpa:GCOU-FOST-1", "name": "Grand Coulee-Foster Creek No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "115-161", "voltage_kv": 115.0 }, { "distance_km": 1.27, "id": "line:bpa:GCOU-CRES-1", "name": "Grand Coulee-Creston No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "115-161", "voltage_kv": 115.0 }, { "distance_km": 1.51, "id": "line:bpa:GCOU-BELL-3", "name": "Grand Coulee-Bell No 3", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.55, "id": "line:bpa:COLU-GCOU-1", "name": "Columbia-Grand Coulee No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.56, "id": "line:bpa:POTH-GCOU-1", "name": "Potholes-Grand Coulee No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.58, "id": "line:bpa:GCOU-SUTI-1", "name": "Grand Coulee Switchyard 230-500kV Tie No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "500", "voltage_kv": 500.0 }, { "distance_km": 1.59, "id": "line:bpa:GCOU-WSID-1", "name": "Grand Coulee-Westside AVA No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.61, "id": "line:bpa:RYFD-GCOU-1", "name": "Rocky Ford-Grand Coulee No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.68, "id": "line:bpa:GCOU-BELL-5", "name": "Grand Coulee-Bell No 5", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.69, "id": "line:bpa:OLYM-GCOU-1", "name": "Olympia-Grand Coulee No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 287.0 }, { "distance_km": 1.7, "id": "line:bpa:COLU-GCOU-3", "name": "Columbia-Grand Coulee No 3", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.74, "id": "line:bpa:GCOU-CHJO-1", "name": "Grand Coulee-Chief Joseph No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.76, "id": "line:bpa:GCOU-CHJO-2", "name": "Grand Coulee-Chief Joseph No 2", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 2.49, "id": "line:bpa:KELLT-GCOK-2", "name": "Keller Tap to Grand Coulee-Okanogan No 2", "source_ref": "bpa-lines", "type": "line", "voltage_class": "115-161", "voltage_kv": 115.0 } ], "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": 1.22, "id": "line:bpa:GCOU-OKAN-2", "name": "Grand Coulee-Okanogan No 2", "source_ref": "bpa-lines", "type": "line", "voltage_class": "115-161", "voltage_kv": 115.0 }, { "distance_km": 1.27, "id": "line:bpa:GCOU-FOST-1", "name": "Grand Coulee-Foster Creek No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "115-161", "voltage_kv": 115.0 }, { "distance_km": 1.27, "id": "line:bpa:GCOU-CRES-1", "name": "Grand Coulee-Creston No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "115-161", "voltage_kv": 115.0 }, { "distance_km": 1.51, "id": "line:bpa:GCOU-BELL-3", "name": "Grand Coulee-Bell No 3", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.55, "id": "line:bpa:COLU-GCOU-1", "name": "Columbia-Grand Coulee No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.56, "id": "line:bpa:POTH-GCOU-1", "name": "Potholes-Grand Coulee No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.58, "id": "line:bpa:GCOU-SUTI-1", "name": "Grand Coulee Switchyard 230-500kV Tie No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "500", "voltage_kv": 500.0 }, { "distance_km": 1.59, "id": "line:bpa:GCOU-WSID-1", "name": "Grand Coulee-Westside AVA No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.61, "id": "line:bpa:RYFD-GCOU-1", "name": "Rocky Ford-Grand Coulee No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.68, "id": "line:bpa:GCOU-BELL-5", "name": "Grand Coulee-Bell No 5", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.69, "id": "line:bpa:OLYM-GCOU-1", "name": "Olympia-Grand Coulee No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 287.0 }, { "distance_km": 1.7, "id": "line:bpa:COLU-GCOU-3", "name": "Columbia-Grand Coulee No 3", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.74, "id": "line:bpa:GCOU-CHJO-1", "name": "Grand Coulee-Chief Joseph No 1", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 1.76, "id": "line:bpa:GCOU-CHJO-2", "name": "Grand Coulee-Chief Joseph No 2", "source_ref": "bpa-lines", "type": "line", "voltage_class": "230", "voltage_kv": 230.0 }, { "distance_km": 2.49, "id": "line:bpa:KELLT-GCOK-2", "name": "Keller Tap to Grand Coulee-Okanogan No 2", "source_ref": "bpa-lines", "type": "line", "voltage_class": "115-161", "voltage_kv": 115.0 } ], "nearby_substations": [ { "distance_km": 1.28, "id": "substation:hifld:201966", "kind": "SUBSTATION", "max_kv": 115.0, "name": "Unnamed substation", "source_ref": "hifld-substations-2022", "type": "substation" }, { "distance_km": 1.34, "id": "substation:hifld:201965", "kind": "SUBSTATION", "max_kv": 500.0, "name": "Unnamed substation", "source_ref": "hifld-substations-2022", "type": "substation" }, { "distance_km": 1.63, "id": "substation:hifld:200460", "kind": "SUBSTATION", "max_kv": 500.0, "name": "GRAND COULEE 230KV", "source_ref": "hifld-substations-2022", "type": "substation" } ], "territories": [ { "id": "territory:waecy:12", "name": "Coulee Dam, Town of", "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": 33, "generators_operating": 33, "generators_published": 33, "output_years": [ 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 ], "ownership_known_generators": 33 }, "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": [ { "category": "Hydro", "claim_type": "Utility Specified", "claimant_id": 102, "claimant_name": "Tacoma Power", "mwh": 170886.0, "org": { "id": "org:eia:18429", "name": "Tacoma Power" }, "rec": null, "report_year": 2024 }, { "category": "Hydro", "claim_type": "Utility Specified", "claimant_id": 97, "claimant_name": "Snohomish County PUD #1", "mwh": 5318.0, "org": { "id": "org:eia:17470", "name": "Snohomish County PUD" }, "rec": "True", "report_year": 2024 } ], "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": 33, "included": 33, "unit": "operating generators" }, "denominator": null, "evidence": "reported", "fact_id": "plant:eia:6163#nameplate_mw_op@2024", "label": "Nameplate capacity, operating generators", "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6163", "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": 6809.0 }, { "basis": "Generator rows for the plant in the inventory year, any status", "coverage": null, "denominator": null, "evidence": "reported", "fact_id": "plant:eia:6163#generator_count@2024", "label": "Generators listed", "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6163", "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": 33.0 }, { "basis": "Generator rows with status code OP", "coverage": null, "denominator": null, "evidence": "reported", "fact_id": "plant:eia:6163#generator_count_op@2024", "label": "Operating generators", "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6163", "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": 33.0 }, { "basis": "Sum of nameplate MW over operating generators whose prime mover is a storage technology (BA, PS, FW, CE, CP, ES); a discharge rating, counted as its own resource row, never merged with generation MW", "coverage": { "eligible": 6, "included": 6, "unit": "storage units" }, "denominator": null, "evidence": "reported", "fact_id": "plant:eia:6163#storage_mw_op@2024", "label": "Storage discharge capacity, operating storage units", "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6163", "maturity": "final", "method": "derived", "metric": "storage_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": 314.0 }, { "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": 2, "included": 2, "unit": "plant x prime-mover x fuel rows" }, "denominator": null, "evidence": "reported", "fact_id": "plant:eia:6163#net_generation_mwh@2024", "label": "Net generation", "locator": "out_eia923__yearly_generation_fuel_combined.parquet; report_date=2024-01-01; plant_id_eia=6163", "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": 15443458.0 }, { "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": 6809.0 }, "evidence": "reported", "fact_id": "plant:eia:6163#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": 0.25820752213466536 } ], "generators": [ { "dates": { "note": "EIA-860 reports month and year; day is a placeholder", "operating": "1942-04-01", "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:6163:1#capacity_mw@2024", "label": "Nameplate capacity", "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6163; 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": 125.0 }, { "basis": "Reported or source-estimated net summer capability", "coverage": null, "denominator": null, "evidence": "reported", "fact_id": "generator:eia:6163:1#summer_capacity_mw@2024", "label": "Net summer capacity", "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6163; 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": 125.0 }, { "basis": "Reported or source-estimated net winter capability", "coverage": null, "denominator": null, "evidence": "reported", "fact_id": "generator:eia:6163:1#winter_capacity_mw@2024", "label": "Net winter capacity", "locator": "out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=6163; 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": 125.0 } ], "generator_id": "1", "id": "generator:eia:6163:1", "is_storage": false, "operator": { "entity_type": "F", "entity_type_label": "Federally-owned utility", "id": "org:eia:2518", "name": "Bureau of Reclamation" }, "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; 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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": 33, "included": 33, "unit": "current and historical generators" }, "denominator": null, "evidence": "reported", "fact_id": "plant:eia:6163#latest_nameplate_mw_retired", "label": "Retired or cancelled nameplate capacity, latest inventory", "locator": "Preliminary Monthly Electric Generator Inventory, August 2026; plant_id_eia=6163; 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": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1942-04-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "1", "id": "generator:eia:6163:1", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1951-09-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "10", "id": "generator:eia:6163:10", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1951-06-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "11", "id": "generator:eia:6163:11", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1951-04-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "12", "id": "generator:eia:6163:12", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1950-10-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "13", "id": "generator:eia:6163:13", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1950-07-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "14", "id": "generator:eia:6163:14", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1950-04-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "15", "id": "generator:eia:6163:15", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1949-09-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "16", "id": "generator:eia:6163:16", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1949-07-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "17", "id": "generator:eia:6163:17", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1949-05-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "18", "id": "generator:eia:6163:18", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 600.0, "changed_on": "2026-08-01", "dates": { "operating": "1975-09-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "19", "id": "generator:eia:6163:19", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1942-01-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "2", "id": "generator:eia:6163:2", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 600.0, "changed_on": "2026-08-01", "dates": { "operating": "1976-04-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "20", "id": "generator:eia:6163:20", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 600.0, "changed_on": "2026-08-01", "dates": { "operating": "1976-12-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "21", "id": "generator:eia:6163:21", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 805.0, "changed_on": "2026-08-01", "dates": { "operating": "1978-05-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "22", "id": "generator:eia:6163:22", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 805.0, "changed_on": "2026-08-01", "dates": { "operating": "1979-11-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "23", "id": "generator:eia:6163:23", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 805.0, "changed_on": "2026-08-01", "dates": { "operating": "1980-05-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "24", "id": "generator:eia:6163:24", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1941-09-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "3", "id": "generator:eia:6163:3", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1944-02-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "4", "id": "generator:eia:6163:4", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1943-11-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "5", "id": "generator:eia:6163:5", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1943-08-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "6", "id": "generator:eia:6163:6", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1947-10-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "7", "id": "generator:eia:6163:7", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1943-02-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "8", "id": "generator:eia:6163:8", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 125.0, "changed_on": "2026-08-01", "dates": { "operating": "1948-04-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "9", "id": "generator:eia:6163:9", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 10.0, "changed_on": "2026-08-01", "dates": { "operating": "1941-03-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "LS1", "id": "generator:eia:6163:LS1", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 10.0, "changed_on": "2026-08-01", "dates": { "operating": "1941-03-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "LS2", "id": "generator:eia:6163:LS2", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 10.0, "changed_on": "2026-08-01", "dates": { "operating": "1951-01-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "LS3", "id": "generator:eia:6163:LS3", "in_baseline": true, "life": "operating", "resource_group": "hydro", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Conventional Hydroelectric" }, { "capacity_mw": 53.5, "changed_on": "2026-08-01", "dates": { "operating": "1983-06-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "PG10", "id": "generator:eia:6163:PG10", "in_baseline": true, "life": "operating", "resource_group": "storage", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Hydroelectric Pumped Storage" }, { "capacity_mw": 53.5, "changed_on": "2026-08-01", "dates": { "operating": "1983-11-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "PG11", "id": "generator:eia:6163:PG11", "in_baseline": true, "life": "operating", "resource_group": "storage", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Hydroelectric Pumped Storage" }, { "capacity_mw": 53.5, "changed_on": "2026-08-01", "dates": { "operating": "1984-04-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "PG12", "id": "generator:eia:6163:PG12", "in_baseline": true, "life": "operating", "resource_group": "storage", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Hydroelectric Pumped Storage" }, { "capacity_mw": 50.0, "changed_on": "2026-08-01", "dates": { "operating": "1973-10-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "PG7", "id": "generator:eia:6163:PG7", "in_baseline": true, "life": "operating", "resource_group": "storage", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Hydroelectric Pumped Storage" }, { "capacity_mw": 50.0, "changed_on": "2026-08-01", "dates": { "operating": "1973-11-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "PG8", "id": "generator:eia:6163:PG8", "in_baseline": true, "life": "operating", "resource_group": "storage", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Hydroelectric Pumped Storage" }, { "capacity_mw": 53.5, "changed_on": "2026-08-01", "dates": { "operating": "1983-04-01", "planned_operating": null, "planned_retirement": null, "precision": "month", "retirement": null }, "generator_id": "PG9", "id": "generator:eia:6163:PG9", "in_baseline": true, "life": "operating", "resource_group": "storage", "status": { "category": "existing", "code": "OP", "label": "operating" }, "technology": "Hydroelectric Pumped Storage" } ] }, "location": { "city": "Grand Coulee", "county": "Grant", "datum": null, "lat": 47.957511, "locator": "out_eia__yearly_plants.parquet; report_date=2024-01-01; plant_id_eia=6163", "lon": -118.9773, "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" }, "name": "Grand Coulee Dam", "operator": { "entity_type": "F", "entity_type_label": "Federally-owned utility", "id": "org:eia:2518", "name": "Bureau of Reclamation" }, "output": { "annual": [ { "components": [ { "energy_source": { "code": "WAT", "fuel_group": "hydro", "label": "water" }, "maturity": "final", "net_generation_mwh": 18838602.0, "prime_mover": { "code": "HY", "label": "hydraulic_turbine" } }, { "energy_source": { "code": "WAT", "fuel_group": "hydro", "label": "water" }, "maturity": "final", "net_generation_mwh": 40021.0, "prime_mover": { "code": "PS", "label": "pumped_storage" } } ], "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": 2, "included": 2, "unit": "plant x prime-mover x fuel rows" }, "denominator": null, "evidence": "reported", "fact_id": "plant:eia:6163#net_generation_mwh@2015", "label": "Net generation", "locator": "out_eia923__yearly_generation_fuel_combined.parquet; report_date=2015-01-01; plant_id_eia=6163", "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": 18878623.0 }, "rows": 2, "year": 2015 }, { "components": [ { "energy_source": { "code": "WAT", "fuel_group": "hydro", "label": "water" }, "maturity": "final", "net_generation_mwh": 19013810.0, "prime_mover": { "code": "HY", "label": "hydraulic_turbine" } }, { "energy_source": { "code": "WAT", "fuel_group": "hydro", "label": "water" }, "maturity": "final", "net_generation_mwh": -2318.0, "prime_mover": { "code": "PS", "label": "pumped_storage" } } ], "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": 2, "included": 2, "unit": "plant x prime-mover x fuel rows" }, "denominator": null, "evidence": "reported", "fact_id": "plant:eia:6163#net_generation_mwh@2016", "label": "Net generation", "locator": "out_eia923__yearly_generation_fuel_combined.parquet; report_date=2016-01-01; plant_id_eia=6163", "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": 19011492.0 }, "rows": 2, "year": 2016 }, { "components": [ { "energy_source": { "code": "WAT", "fuel_group": "hydro", 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"maturity": "final", "period_end": "2023-11-01T00:00:00Z", "period_start": "2023-10-01T00:00:00Z", "quality": "valid", "rows": 2, "value": 853717.0 }, { "hours": 720, "maturity": "final", "period_end": "2023-12-01T00:00:00Z", "period_start": "2023-11-01T00:00:00Z", "quality": "valid", "rows": 2, "value": 1253060.0 }, { "hours": 744, "maturity": "final", "period_end": "2024-01-01T00:00:00Z", "period_start": "2023-12-01T00:00:00Z", "quality": "valid", "rows": 2, "value": 1325829.0 }, { "hours": 744, "maturity": "final", "period_end": "2024-02-01T00:00:00Z", "period_start": "2024-01-01T00:00:00Z", "quality": "valid", "rows": 2, "value": 1371333.0 }, { "hours": 696, "maturity": "final", "period_end": "2024-03-01T00:00:00Z", "period_start": "2024-02-01T00:00:00Z", "quality": "valid", "rows": 2, "value": 905648.0 }, { "hours": 744, "maturity": "final", "period_end": "2024-04-01T00:00:00Z", "period_start": "2024-03-01T00:00:00Z", "quality": "valid", "rows": 2, "value": 1152431.0 }, { "hours": 720, "maturity": "final", "period_end": "2024-05-01T00:00:00Z", "period_start": "2024-04-01T00:00:00Z", "quality": "valid", "rows": 2, "value": 1096581.0 }, { "hours": 744, "maturity": "final", "period_end": "2024-06-01T00:00:00Z", "period_start": "2024-05-01T00:00:00Z", "quality": "valid", "rows": 2, "value": 1380877.0 }, { "hours": 720, "maturity": "final", "period_end": "2024-07-01T00:00:00Z", "period_start": "2024-06-01T00:00:00Z", "quality": "valid", "rows": 2, "value": 1562624.0 }, { "hours": 744, "maturity": "final", "period_end": "2024-08-01T00:00:00Z", "period_start": "2024-07-01T00:00:00Z", "quality": "valid", "rows": 2, "value": 1832177.0 }, { "hours": 744, "maturity": "final", "period_end": "2024-09-01T00:00:00Z", "period_start": "2024-08-01T00:00:00Z", "quality": "valid", "rows": 2, "value": 1514268.0 }, { "hours": 720, "maturity": "final", "period_end": "2024-10-01T00:00:00Z", "period_start": "2024-09-01T00:00:00Z", "quality": "valid", "rows": 2, "value": 782494.0 }, { "hours": 744, "maturity": "final", "period_end": "2024-11-01T00:00:00Z", "period_start": "2024-10-01T00:00:00Z", "quality": "valid", "rows": 2, "value": 914449.0 }, { "hours": 720, "maturity": "final", "period_end": "2024-12-01T00:00:00Z", "period_start": "2024-11-01T00:00:00Z", "quality": "valid", "rows": 2, "value": 1410762.0 }, { "hours": 744, "maturity": "final", "period_end": "2025-01-01T00:00:00Z", "period_start": "2024-12-01T00:00:00Z", "quality": "valid", "rows": 2, "value": 1519814.0 } ], "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": 33, "owned_mw": 6809.0, "owner": { "entity_type": "F", "entity_type_label": "Federally-owned utility", "id": "org:eia:2518", "name": "Bureau of Reclamation" } } ], "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": "Grand Coulee", "sources": [ "curated-aliases", "ornl-eha-2026", "ornl-hilarri-v4", "pudl-generators", "pudl-output", "pudl-ownership", "pudl-plants", "usace-cwms-history", "usace-nid" ], "storage": { "annual": [ { "facts": [ { "basis": "EIA-923 Schedule 3 Part B energy consumed for pumping, compressing or charging, summed over the plant's storage prime movers for the calendar year", "coverage": { "eligible": 12, "included": 12, "unit": "months" }, "denominator": null, "evidence": "reported", "fact_id": "plant:eia:6163#storage_charged_mwh@2015", "label": "Energy taken to charge", "locator": "core_eia923__monthly_energy_storage.parquet; report_date=2015; plant_id_eia=6163; prime_mover_code=storage prime movers", "maturity": "final", "method": "derived", "metric": "storage_charged_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-storage-operation-monthly", "unit": "MWh", "value": 5715.0 }, { "basis": "EIA-923 Schedule 3 Part B gross generation of the plant's storage prime movers for the calendar year", "coverage": { "eligible": 12, "included": 12, "unit": "months" }, "denominator": null, "evidence": "reported", "fact_id": "plant:eia:6163#storage_discharged_mwh@2015", "label": "Energy discharged", "locator": "core_eia923__monthly_energy_storage.parquet; report_date=2015; plant_id_eia=6163; prime_mover_code=storage prime movers", "maturity": "final", "method": "derived", "metric": "storage_discharged_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-storage-operation-monthly", "unit": "MWh", "value": 45736.0 }, { "basis": "Discharged minus charged as reported (EIA-923 net generation of the storage prime movers), signed; usually negative because charging exceeds output, not always", "coverage": { "eligible": 12, "included": 12, "unit": "months" }, "denominator": null, "evidence": "reported", "fact_id": "plant:eia:6163#storage_net_mwh@2015", "label": "Net storage output", "locator": "core_eia923__monthly_energy_storage.parquet; report_date=2015; plant_id_eia=6163; prime_mover_code=storage prime movers", "maturity": "final", "method": "derived", "metric": "storage_net_mwh", "missing_reason": null, "note": "Positive net: discharge exceeded reported charging energy this year", "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-storage-operation-monthly", "unit": "MWh", "value": 40021.0 }, { "basis": "Discharged MWh divided by charged MWh over a full calendar 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3 Part B energy consumed for pumping, compressing or charging, summed over the plant's storage prime movers for the calendar year", "coverage": { "eligible": 12, "included": 12, "unit": "months" }, "denominator": null, "evidence": "reported", "fact_id": "plant:eia:6163#storage_charged_mwh@2016", "label": "Energy taken to charge", "locator": "core_eia923__monthly_energy_storage.parquet; report_date=2016; plant_id_eia=6163; prime_mover_code=storage prime movers", "maturity": "final", "method": "derived", "metric": "storage_charged_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-storage-operation-monthly", "unit": "MWh", "value": 5142.0 }, { "basis": "EIA-923 Schedule 3 Part B gross generation of the plant's storage prime movers for the calendar year", "coverage": { "eligible": 12, "included": 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Net storage output is signed and is never added to generation shares.", "role": "co-located", "subtype_labels": [ "Pumped-storage hydro" ], "subtypes": [ "pumped_hydro" ] }, "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)", "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" }, "hours": [ "2024-01-10T09:00:00Z", "2024-01-10T10:00:00Z", "2024-01-10T11:00:00Z", "2024-01-10T12:00:00Z", "2024-01-10T13:00:00Z", "2024-01-10T14:00:00Z", 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"2024-01-19T04:00:00Z", "2024-01-19T05:00:00Z", "2024-01-19T06:00:00Z", "2024-01-19T07:00:00Z", "2024-01-19T08:00:00Z", "2024-01-19T09:00:00Z", "2024-01-19T10:00:00Z", "2024-01-19T11:00:00Z", "2024-01-19T12:00:00Z", "2024-01-19T13:00:00Z", "2024-01-19T14:00:00Z", "2024-01-19T15:00:00Z", "2024-01-19T16:00:00Z", "2024-01-19T17:00:00Z", "2024-01-19T18:00:00Z", "2024-01-19T19:00:00Z", "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 WA00262 (this plant's reviewed dam) to NWDP location GCL; CWMS location 'Grand Coulee Dam' is a PROJECT in WA, 0.26 km from the EIA plant point; its name shares 'grand', 'coulee' with the NID dam name", "dam_names": [ "Grand Coulee Dam" ], "distance_km": 0.26, "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": [ "WA00262" ], "reviewed_on": "2026-09-27", "reviewer": "claude-w52", "shared_name_tokens": [ "grand", "coulee" ], "verified": true }, "license": "U.S. government work; public API, no terms stated", "location": { "horizontal_datum": "WGS84", "id": "GCL", "latitude": 47.95667, "location_kind": "PROJECT", "long_name": "Grand Coulee Dam 1 Southwest", "longitude": -118.9805, "office": "NWDP", "public_name": "Grand Coulee Dam", "retrieved_at": "2026-09-29T04:59:56Z", "state_initial": "WA", "timezone_name": "US/Pacific", "url": "https://cwms-data.usace.army.mil/cwms-data/locations/GCL?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": [ { "evidence": [ { "label": "USACE system map (storage-series bounds)", "url": "https://www.nwd-wc.usace.army.mil/dd/common/sysmap/webexec/getData" }, { "label": "USACE project page (usable storage 1,208-1,290 ft)", "url": "https://www.nwd-wc.usace.army.mil/dd/common/projects/www/gcl.html" }, { "label": "USACE CWMS storage levels at GCL", "url": "https://cwms-data.usace.army.mil/cwms-data/levels?office=NWDP&level-id-mask=GCL.Stor.*&unit=EN" }, { "label": "USACE Grand Coulee fact sheet", "url": "https://www.nwd.usace.army.mil/fact-sheets/article/3485377/grand-coulee-dam/" }, { "label": "USBR Grand Coulee statistics (capacities)", "url": "https://www.usbr.gov/pn/grandcoulee/pubs/2024-03-CGD-Stats-and-Facts.pdf" }, { "label": "USBR Grand Coulee Dam project data", "url": "https://www.usbr.gov/projects/index.php?id=155" } ], "key": "storage", "name": "GCL.Stor.Inst.1Hour.0.CBT-REV", "reason": "basis_unsettled: USACE's hourly storage series is not active storage. USACE's system map bounds it at 3,921,900 to 9,107,400 acre-feet; that span, 5,185,500 acre-feet, equals the usable storage USACE's project page gives between the 1,208 ft minimum pool and the 1,290 ft full pool, which places the series' floor at the minimum pool: its values count the water below that pool. Nor is it the total on any published table: USACE's own CWMS levels for this location put full pool at 9,715,346 acre-feet, USBR publishes 9,386,000 and 9,652,000, and neither agency names the elevation-storage table behind the series. Active storage is never computed here.", "unit": "ac-ft" } ], "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": "The API serves these series unversioned: 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": 148000.0, "min": 25600.0 }, "ft": { "max": 1282.2, "min": 1280.6 } }, "series": [ { "available": true, "convention": "instantaneous", "convention_text": "The reading at the stamp: the end of each hour shown", "cwms_id": "GCL.Elev-Forebay.Inst.1Hour.0.CBT-REV", "date_version_type": "UNVERSIONED", "expected": 240, "grain": "hour", "key": "forebay_elevation", "label": "Forebay elevation", "max": 1282.2, "min": 1280.6, "missing": [], "parameter": "Elev-Forebay", "present": 240, "quality_codes": [ 0 ], "query_url": "https://cwms-data.usace.army.mil/cwms-data/timeseries?office=NWDP&name=GCL.Elev-Forebay.Inst.1Hour.0.CBT-REV&begin=2024-01-10T08:00:00Z&end=2024-01-20T08:00:00Z&unit=EN&page-size=10000", "reason": null, "retrieved_at": "2026-09-29T05:01:14Z", "service": "cwms", "sha256": "f88a8880463aebaaf484469089a626c53f4a1bddb95859f87cfe8feb56590470", "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": "ft", "values": [ 1281.3, 1281.4, 1281.5, 1281.4, 1281.4, 1281.4, 1281.4, 1281.3, 1281.4, 1281.5, 1281.5, 1281.5, 1281.5, 1281.5, 1281.5, 1281.7, 1281.7, 1281.7, 1281.7, 1281.7, 1281.8, 1281.8, 1281.9, 1281.9, 1281.9, 1281.9, 1281.9, 1282.0, 1282.0, 1282.1, 1282.0, 1282.0, 1282.0, 1281.9, 1281.9, 1282.0, 1282.0, 1282.1, 1282.1, 1282.1, 1282.0, 1282.0, 1282.0, 1282.1, 1282.1, 1282.2, 1282.2, 1282.1, 1282.1, 1282.1, 1282.2, 1282.2, 1282.2, 1282.2, 1282.2, 1282.1, 1282.0, 1282.0, 1282.1, 1282.1, 1282.1, 1282.1, 1282.0, 1281.9, 1281.9, 1281.9, 1281.9, 1281.9, 1281.9, 1281.9, 1281.9, 1281.9, 1281.9, 1281.9, 1281.9, 1281.8, 1281.7, 1281.8, 1281.7, 1281.7, 1281.6, 1281.6, 1281.6, 1281.5, 1281.5, 1281.5, 1281.4, 1281.4, 1281.3, 1281.3, 1281.2, 1281.2, 1281.1, 1281.1, 1281.2, 1281.2, 1281.2, 1281.1, 1281.0, 1281.0, 1281.0, 1281.0, 1281.0, 1281.0, 1280.9, 1280.8, 1280.8, 1280.8, 1280.9, 1280.9, 1280.9, 1280.8, 1280.7, 1280.7, 1280.8, 1280.8, 1280.8, 1280.8, 1280.8, 1280.7, 1280.7, 1280.8, 1280.8, 1280.8, 1280.8, 1280.7, 1280.6, 1280.6, 1280.6, 1280.7, 1280.7, 1280.7, 1280.6, 1280.6, 1280.6, 1280.6, 1280.6, 1280.6, 1280.7, 1280.7, 1280.6, 1280.6, 1280.7, 1280.8, 1280.9, 1281.0, 1280.9, 1280.9, 1280.8, 1280.8, 1280.8, 1280.8, 1280.8, 1280.8, 1280.8, 1280.8, 1280.7, 1280.7, 1280.7, 1280.8, 1280.7, 1280.7, 1280.7, 1280.8, 1280.8, 1280.9, 1280.9, 1280.9, 1280.9, 1281.0, 1281.0, 1281.0, 1281.1, 1281.0, 1280.9, 1280.9, 1281.0, 1281.0, 1281.0, 1280.9, 1280.8, 1280.7, 1280.7, 1280.7, 1280.8, 1280.8, 1280.8, 1280.8, 1280.8, 1280.9, 1281.0, 1281.0, 1281.1, 1281.1, 1281.1, 1281.1, 1281.2, 1281.2, 1281.2, 1281.2, 1281.2, 1281.2, 1281.1, 1281.1, 1281.2, 1281.2, 1281.1, 1281.1, 1281.0, 1281.0, 1281.1, 1281.2, 1281.2, 1281.2, 1281.2, 1281.2, 1281.2, 1281.3, 1281.3, 1281.4, 1281.3, 1281.3, 1281.2, 1281.2, 1281.2, 1281.3, 1281.2, 1281.2, 1281.3, 1281.2, 1281.1, 1281.2, 1281.2, 1281.2, 1281.2, 1281.3, 1281.3, 1281.3, 1281.3, 1281.4 ], "vertical_datum": "NGVD29" }, { "available": true, "convention": "local_day_average", "convention_text": "The mean over one US/Pacific local day, stamped at the local midnight that ends it (08:00Z in PST, 07:00Z in PDT)", "cwms_id": "GCL.Flow-In.Ave.~1Day.1Day.CBT-REV", "date_version_type": "UNVERSIONED", "expected": 10, "grain": "day", "hour_index": [ 23, 47, 71, 95, 119, 143, 167, 191, 215, 239 ], "key": "inflow", "label": "Daily inflow", "local_dates": [ "2024-01-10", "2024-01-11", "2024-01-12", "2024-01-13", "2024-01-14", "2024-01-15", "2024-01-16", "2024-01-17", "2024-01-18", "2024-01-19" ], "max": 88000.0, "min": 66200.0, "missing": [], "parameter": "Flow-In", "present": 10, "quality_codes": [ 0 ], "query_url": "https://cwms-data.usace.army.mil/cwms-data/timeseries?office=NWDP&name=GCL.Flow-In.Ave.~1Day.1Day.CBT-REV&begin=2024-01-10T08:00:00Z&end=2024-01-20T08:00:00Z&unit=EN&page-size=10000", "reason": null, "retrieved_at": "2026-09-29T05:01:16Z", "service": "cwms", "sha256": "a66edbeffda663e1d3ef8ae2466ba3c85305963abf5d9fe7a0cf78f58aa928db", "source_ref": "usace-cwms-history", "stamp_rule": "The CWMS Data API serves this stamp in UTC (epoch milliseconds); 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public API, no terms stated", "name": "CWMS Data API", "service": "cwms", "source_ref": "usace-cwms-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, as the CWMS Data API served them. Water quantities, not generation: the API serves no 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" } } }