Owyhee County, ID. Reports to the Idaho Power balancing authorityThe organization that balances electricity supply and demand in a reporting area.Definition ↗.
2024 inventory / 2024 calendar year
Sum of generator nameplate MW with operational status code OP in the inventory year; one row per generator; unscaled by ownership
2024 inventory · reported · derived · valid · final
0 of 0 operating generators included.
No generator with status OP in this inventory year
out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=66325
Publisher & attribution ↗ Cite this released fact ↗Sum of EIA-923 annual net generation over the plant's unique prime-mover x energy-source rows; negative values (pumping, station use) retained
2024 calendar year · reported · derived · missing · final
No EIA-923 row for this plant and year
out_eia923__yearly_generation_fuel_combined.parquet; report_date=2024-01-01; plant_id_eia=66325
Publisher & attribution ↗ Cite this released fact ↗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
2024 calendar year · reported · derived · missing · final
derived: net_generation_mwh@2024 / (nameplate_mw_op x 8784 h)
Publisher & attribution ↗ Cite this released fact ↗Annual output not reported in this release.
Operating nameplate MW x ownership fraction, once per generator; reported schedule or EIA-860 schedule-4 default. Ownership source & rules ↗
| Generator | Technology / statusWhether a generator or project is operating, planned, on standby or retired, as its source reports it.Definition ↗ | NameplateA generator’s rated maximum power, in MW. Capacity is a rating, not how much electricity it produced.Definition ↗ · MW | Ownership basisHow a generator's owners were established: from EIA-860's ownership schedule (reported), from EIA's rule that a unit absent from a complete schedule is wholly owned by its operator (derived), or unknown.Definition ↗ |
|---|---|---|---|
| 1 | BatteriesBattery storage· Flow Battery· backup powerconstruction_complete (TS) | 80MW | Ownership unknownOwnership not established: proposed unit, missing ownership code, unknown operator, or incomplete schedule |
| 3 | BatteriesBattery storage· Flow Battery· frequency regulation, load following, voltage or reactive power supportplanned_approvals_pending (L) | 50MW | Ownership unknownOwnership not established: proposed unit, missing ownership code, unknown operator, or incomplete schedule |
| HGWP2 | BatteriesBattery storage· Flow Battery· backup powerconstruction_complete (TS) | 36MW | Ownership unknownOwnership not established: proposed unit, missing ownership code, unknown operator, or incomplete schedule |
The EIA-860 inventory for 2024 lists no existing generator at this plant, so there is no unit EPA could monitor. Source
0 operating storage units. Stores electricity; does not generate. Net output is net of chargingEnergy taken in to charge, energy returned, and their difference. Charging can make net generation negative.Definition ↗.
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
2024 inventory · reported · derived · not_applicable · final
0 of 3 storage units included.
No operating storage unit in this inventory year
out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=66325
Publisher & attribution ↗ Cite this released fact ↗Sum of reported maximum charge rate MW (EIA-860 Schedule 3 Part B) over operating storage units that report it; batteries, flywheels and compressed air only
2024 inventory · reported · derived · missing · final
0 of 0 operating storage units included.
core_eia860__scd_generators_energy_storage.parquet; report_date=2024-01-01; plant_id_eia=66325
Publisher & attribution ↗ Cite this released fact ↗Sum of reported nameplate energy capacity MWh over operating storage units (EIA-860 line 34: batteries, flywheels, compressed air; null for pumped and thermal storage); unknown stays unknown
2024 inventory · reported · derived · missing · final
0 of 0 operating storage units included.
out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=66325
Publisher & attribution ↗ Cite this released fact ↗Nameplate energy MWh divided by nameplate MW, only when every unit has energy capacity and a positive reported discharge rate agreeing with nameplate within 0.05 MW; a nameplate ratio, not usable state of charge
2024 inventory · reported · derived · unsupported · final
0 of 0 operating storage units with verified duration included.
Each operating unit needs energy capacity and matching positive nameplate/discharge MW; no ratio otherwise
derived: validated per-unit ratings; plant_id_eia=66325
Publisher & attribution ↗ Cite this released fact ↗No EIA-923 storage operation rows for this plant in the released years: unknown, not zero.
A co-located plant's deliverable capacity is not the sum of its components (EIA-860 carries no interconnection limit). Net storage output is signed and is never added to generation shares.
3 of 3 units changed since the baseline inventory: 1 entered service (August 2026); 3 entered service (August 2026); HGWP2 entered service (August 2026).
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
2026-08-01 · reported · derived · valid · provisional
3 of 3 current and historical generators included.
Preliminary Monthly Electric Generator Inventory, August 2026; plant_id_eia=66325; report_date=2026-08-01
Publisher & attribution ↗ Cite this released fact ↗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
2026-08-01 · reported · derived · not_applicable · provisional
3 of 3 current and historical generators included.
Preliminary Monthly Electric Generator Inventory, August 2026; plant_id_eia=66325; report_date=2026-08-01
Publisher & attribution ↗ Cite this released fact ↗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
2026-08-01 · reported · derived · not_applicable · provisional
3 of 3 current and historical generators included.
Preliminary Monthly Electric Generator Inventory, August 2026; plant_id_eia=66325; report_date=2026-08-01
Publisher & attribution ↗ Cite this released fact ↗| Unit | Change | As of | Baseline → latest status | Nameplate · MW |
|---|---|---|---|---|
| 1 | entered service | August 2026 | TS → OP | 80MW → 80MW |
| 3 | entered service | August 2026 | L → OP | 50MW → 50MW |
| HGWP2 | entered service | August 2026 | TS → OP | 36MW → 36MW |
Each unit's operating span from its reported operating date to its retirement date or to the August 2026 inventory (the vertical line). Dashed spans start at a planned operating date, a forecast; a short bar marks a planned retirement. Standby and out-of-service units are hatched.
| Unit | State | Operating since | Planned | Retired | MW |
|---|---|---|---|---|---|
| 1 | Operating | March 2025 | — | — | 80MW |
| 3 | Operating | June 2026 | — | — | 50MW |
| HGWP2 | Operating | March 2025 | — | — | 36MW |
Independently dated by EIA-860M; the baseline facts above stay the validated edition. Planned dates are forecasts; retired is not demolished.
Balancing authority: Idaho Power
Approximate service areasAn approximate utility service area. The boundary cannot identify the supplier for a particular address.Definition ↗ containing the plant’s location. A geographic candidate, not a supply relationship.
Within 3 km of the reported plant point, nearest first. BPA’s published lines, HIFLD-compiled lines of other owners and HIFLD 2022 substations; nearness does not establish an electrical connection.
Generator rows for the plant in the inventory year, any status
2024 inventory · reported · derived · valid · final
out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=66325
Publisher & attribution ↗ Cite this released fact ↗Generator rows with status code OP
2024 inventory · reported · derived · valid · final
out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=66325
Publisher & attribution ↗ Cite this released fact ↗Sum of generator nameplate MW with status category proposed (planned, under construction, cancelled and similar codes) as listed in the inventory year; a proposal is not a commitment
2024 inventory · reported · derived · valid · final
out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=66325
Publisher & attribution ↗ Cite this released fact ↗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
2024 inventory · reported · derived · not_applicable · final
0 of 3 storage units included.
No operating storage unit in this inventory year
out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=66325
Publisher & attribution ↗ Cite this released fact ↗Catalyst Cooperative, PUDL v2026.9.0, derived from U.S. EIA Forms 860/923
Data transformed by PUDL from U.S. EIA forms; selected fields republished; EIA data is public with dated acknowledgment (https://www.eia.gov/about/copyrights_reuse.php)
Catalyst Cooperative, PUDL v2026.9.0, derived from U.S. EIA Forms 860/923
Data transformed by PUDL from U.S. EIA forms; selected fields republished; EIA data is public with dated acknowledgment (https://www.eia.gov/about/copyrights_reuse.php)
Catalyst Cooperative, PUDL v2026.9.0, derived from U.S. EIA Forms 860/923
Data transformed by PUDL from U.S. EIA forms; selected fields republished; EIA data is public with dated acknowledgment (https://www.eia.gov/about/copyrights_reuse.php)
Catalyst Cooperative, PUDL v2026.9.0, derived from U.S. EIA Forms 860/923
Data transformed by PUDL from U.S. EIA forms; selected fields republished; EIA data is public with dated acknowledgment (https://www.eia.gov/about/copyrights_reuse.php)
Release 20260929T050546Z-51ae0f7d3c78 · Record JSON