Elmore 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
3 of 3 operating generators included.
out_eia__yearly_generators.parquet; report_date=2024-01-01; plant_id_eia=7953
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 · valid · final
1 of 1 plant x prime-mover x fuel rows included.
out_eia923__yearly_generation_fuel_combined.parquet; report_date=2024-01-01; plant_id_eia=7953
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 · valid · final
derived: net_generation_mwh@2024 / (nameplate_mw_op x 8784 h)
Publisher & attribution ↗ Cite this released fact ↗Annual net generation · MWh. Bars below zero are negative net generation; a hollow mark means not reported. Missing years are not filled.
| Calendar year | Net generation · MWh | Evidence |
|---|---|---|
| 2015 | 255,025MWh | reported · final |
| 2016 | 198,102MWh | reported · final |
| 2017 | 66,191MWh | reported · final |
| 2018 | 127,648MWh | reported · final |
| 2019 | 294,755MWh | reported · final |
| 2020 | 274,624MWh | reported · final |
| 2021 | 484,314MWh | reported · final |
| 2022 | 537,902MWh | reported · final |
| 2023 | 566,667MWh | reported · final |
| 2024 | 1,096,706MWh | reported · final |
Sum of unique plant x prime-mover x fuel rows per year; negative values retained; missing years absent, not zero; no monthly curve inferred
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 | Natural Gas Fired Combustion Turbineoperating (OP) | 179.1MW | EIA schedule default · derivedGenerator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived) Idaho Power · 1 fraction · 179.1MW owned · reported, derived |
| 2 | Natural Gas Fired Combustion Turbineoperating (OP) | 45.9MW | EIA schedule default · derivedGenerator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived) Idaho Power · 1 fraction · 45.9MW owned · reported, derived |
| 3 | Natural Gas Fired Combustion Turbineoperating (OP) | 45.9MW | EIA schedule default · derivedGenerator absent from a complete Schedule 4 with ownership code S and known operator: wholly owned by the operator per EIA instructions (derived) Idaho Power · 1 fraction · 45.9MW owned · reported, derived |
3 monitored units covering 3 of 3 combustion generators, 270.9 of 270.9 MW. 100.0% of operating unit-hours carry EPA’s measured flag; the rest are substitute dataHours a unit filled under Part 75 missing-data procedures instead of a monitor reading; EPA flags each hour Measured, Substitute or Measured and Substitute. Substitute values are designed to err high. The atlas counts these hours, and a plant's CO2 fact is metered only when at least 99 percent of its operating unit-hours were measured.Definition ↗.
Sum of hourly CO2 mass reported under 40 CFR Part 75 by the plant's EPA-monitored units over the reporting year, short tons x 0.90718474. Stack total of those units including any share attributable to steam sold; the plant's total only where every combustion generator is monitored
2024 calendar year · metered · derived · valid · final
3 of 3 combustion generators included.
core_epacems__hourly_emissions.parquet; year=2024; plant_id_eia=7953
Publisher & attribution ↗ Cite this released fact ↗Monitored-unit CO2 (tonnes) divided by the plant's EIA-923 net generation for the same year. Only where every combustion generator is monitored, so numerator and denominator cover the same plant; comparable across such plants
2024 calendar year · metered · derived · valid · final
derived: co2_mass_tonnes@2024 / net_generation_mwh@2024 (pudl-output)
Publisher & attribution ↗ Cite this released fact ↗Monitored-unit CO2 (tonnes) divided by the same units' reported gross load. Only where every combustion generator is monitored and the gross load is not below EIA net generation; gross, so lower than the net figure, and not comparable with it
2024 calendar year · metered · derived · valid · final
derived: co2_mass_tonnes@2024 / cems_gross_load_mwh@2024
Publisher & attribution ↗ Cite this released fact ↗| Year | CO2t CO2 | Evidence | Measured shareof operating unit-hours | Net intensityt CO2/MWh |
|---|---|---|---|---|
| 2023 | 330,860 | metered3 units, 3 of 3 generators | 100.0% | 0.584 |
| 2024 | 626,071 | metered3 units, 3 of 3 generators | 100.0% | 0.571 |
| Figure | Value | Basis |
|---|---|---|
| CO2 mass, monitored units | 626,071 t CO2 | Sum of hourly CO2 mass reported under 40 CFR Part 75 by the plant's EPA-monitored units over the reporting year, short tons x 0.90718474. Stack total of those units including any share attributable to steam sold; the plant's total only where every combustion generator is monitored |
| CO2 mass, monitored units, as filed | 690,126 short tons CO2 | The same sum in the unit EPA's files use (short tons); shown beside the metric figure so the conversion is visible |
| Gross load of monitored units | 1,103,238 MWh | Sum over the year of each monitored unit's reported hourly gross load (MW) x operating time (h). A unit-reported quantity: a combined-cycle unit need not include its steam turbine, so this can be below EIA net generation |
| Heat input of monitored units | 11,612,683 mmBtu | Sum over the year of each monitored unit's reported hourly heat input |
| Unit operating hours, monitored units | 8,146.9 h | Sum of reported operating time over the plant's monitored units: unit-hours, so it can exceed the hours in the year when several units ran |
| Hours in which a monitored unit ran | 6,189 count | Calendar hours of the reporting year in which at least one monitored unit reported operating time; never above the hours in the year |
| EPA emissions units with CEMS rows | 3 count | Distinct EPA emissions units at the plant with rows in the reporting year; an EPA unit is a combustor or stack, not an EIA generator |
| Combustion generators linked to a monitored unit | 3 count | Existing coal, gas, oil or waste generators of the plant (EIA-860 inventory year) that the EPA-EIA crosswalk links to a unit with CEMS rows; a steam turbine linked to several combustion turbines counts once |
| Combustion generators at the plant | 3 count | Existing (operating, standby or out of service) generators whose resource group is coal, gas, oil or waste in the EIA-860 inventory year: the units that could be monitored |
| Share of operating unit-hours with measured CO2 | 0.9998 fraction | Operating unit-hours EPA flagged Measured divided by all operating unit-hours of the plant's monitored units; the rest were Substitute, Measured and Substitute, or another method code |
| CO2 per MWh of net generation | 0.571 t CO2/MWh | Monitored-unit CO2 (tonnes) divided by the plant's EIA-923 net generation for the same year. Only where every combustion generator is monitored, so numerator and denominator cover the same plant; comparable across such plants |
| CO2 per MWh of gross load (unit-reported) | 0.567 t CO2/MWh | Monitored-unit CO2 (tonnes) divided by the same units' reported gross load. Only where every combustion generator is monitored and the gross load is not below EIA net generation; gross, so lower than the net figure, and not comparable with it |
CO2 reported hourly under 40 CFR Part 75 by this plant's EPA-monitored units and summed over the reporting year, as filed (short tons) and in tonnes. It is a stack total of those units, includes any share attributable to steam sold, and is not CO2-equivalent, lifecycle or consumption-based. EPA-monitored units are one program's population: the figure is not a regional total and an unmonitored plant is not zero. Evidence rule: metered where at least 99% of the plant's operating unit-hours carry EPA's Measured flag, estimated where more were Substitute, Measured and Substitute or another method code. Source and notice· matched through EPA’s crosswalk.
1 of 3 units changed since the baseline inventory: 2 status changed (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=7953; 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=7953; 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=7953; report_date=2026-08-01
Publisher & attribution ↗ Cite this released fact ↗| Unit | Change | As of | Baseline → latest status | Nameplate · MW |
|---|---|---|---|---|
| 2 | status changed | August 2026 | OP → OS | 45.9MW → 45.9MW |
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 | February 2008 | — | — | 179.1MW |
| 2 | Standby or out of service | September 2001 | — | — | 45.9MW |
| 3 | Operating | September 2001 | — | — | 45.9MW |
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=7953
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=7953
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)
Catalyst Cooperative, PUDL v2026.9.0, derived from U.S. EPA CAMD Power Sector Emissions Data
Data transformed by PUDL from U.S. EPA Clean Air Markets Division hourly emissions files; selected fields for two reporting years and four states republished; EPA data is public (https://www.epa.gov/power-sector/power-sector-data)
Catalyst Cooperative, PUDL v2026.9.0, derived from the U.S. EPA-EIA Power Sector Data Crosswalk
Data transformed by PUDL from EPA's camd-eia-crosswalk (https://github.com/USEPA/camd-eia-crosswalk); selected fields republished
Release 20260929T050546Z-51ae0f7d3c78 · Record JSON