Skip to content
Understand IdahoSearch

Idaho planned power generators

Every proposed generator in Idaho from the newest Form EIA-860 release: its plant, source, capacity, planned in-service year and current regulatory status.

Records

Planned Idaho power plants

One row per proposed generator in Idaho, from the newest Form EIA-860 release's Proposed sheet.

Data table (15 rows)
PlantOperatorCountySourceNameplate (MW)Planned yearStatus
Hemmingway BESSIdaho Power CoOwyheeBattery storage502026Under construction, 50 percent or less complete
Arco Wind and Solar ProjectPacifiCorpBonnevilleWind1532027Regulatory approvals received, not under construction
Arco Wind and Solar ProjectPacifiCorpBonnevilleWind2062028Regulatory approvals received, not under construction
IFP Peaking PlantCity of Idaho Falls - (ID)BonnevilleNatural gas2.52025Construction complete, but not yet in commercial operation
IFP Peaking PlantCity of Idaho Falls - (ID)BonnevilleNatural gas2.52025Construction complete, but not yet in commercial operation
IFP Peaking PlantCity of Idaho Falls - (ID)BonnevilleNatural gas2.52025Construction complete, but not yet in commercial operation
IFP Peaking PlantCity of Idaho Falls - (ID)BonnevilleNatural gas2.52025Construction complete, but not yet in commercial operation
IFP Peaking PlantCity of Idaho Falls - (ID)BonnevilleNatural gas2.52025Construction complete, but not yet in commercial operation
IFP Peaking PlantCity of Idaho Falls - (ID)BonnevilleNatural gas2.52025Construction complete, but not yet in commercial operation
IFP Peaking PlantCity of Idaho Falls - (ID)BonnevilleNatural gas2.52025Construction complete, but not yet in commercial operation
Pleasant Valley Solar 2 ProjectPVS 2, LLCAdaSolar1252026Under construction, 50 percent or less complete
Boise Bench BESSIdaho Power CoAdaBattery storage1502026Under construction, 50 percent or less complete
Crimson Orchard Solar and BESSClenera DevCo LLCElmoreBattery storage1002027Regulatory approvals pending, not under construction
Crimson Orchard Solar and BESSClenera DevCo LLCElmoreSolar1002027Regulatory approvals pending, not under construction
Blacks Creek SolarBlacks Creek Energy Center, LLCAdaSolar4002027Regulatory approvals received, not under construction

Source: U.S. Energy Information Administration, Form EIA-860, Annual Electric Generator Report, Idaho planned generators. Published .

Pages built on this dataset

Publisher

Organization
U.S. Energy Information Administration
Publisher’s dataset
Form EIA-860, Annual Electric Generator Report, Idaho planned generators
File or API used
https://www.eia.gov/electricity/data/eia860/xls/eia8602025.zip
Methodology
https://www.eia.gov/electricity/data/eia860/pdf/instructions.pdf

Coverage

Geography
Idaho
Time coverage
2025
Update frequency
Annual; the final EIA-860 file for a year posts the following September
Published
September 2026
Retrieved
September 10, 2026
License of the records
Public domain. U.S. federal government work.
Rows
15 records

Field reference

One row per proposed generator in Idaho, from the newest Form EIA-860 release's Proposed sheet.

  • plant: Plant name as printed on Form EIA-860.
  • operator: Utility Name as printed on Form EIA-860; the form's respondent, not necessarily the future owner.
  • county: County as printed on Form EIA-860.
  • source: Source category mapped from the generator's Technology or Energy Source 1.
  • nameplate_mw: Nameplate Capacity (MW) for this generator.
  • planned_operating_year: Form EIA-860's Effective Year: the planned year this generator enters commercial operation.
  • status: Form EIA-860's Proposed Generator Status Code, spelled out from the form's instructions.

Caveats

  • Latest EIA-860 final release only, not a time series: this file is replaced whole on every refresh, one row per proposed generator at a plant that has not yet reached commercial operation.
  • A multi-unit project (a peaking plant ordering several identical engines, or a solar-plus-storage site) lists one row per generator, since Form EIA-860 records a separate status and Nameplate Capacity (MW) for each; the same plant name can repeat with different sources, capacities and planned years.
  • status is Form EIA-860's own Proposed Generator Status Code spelled out from the form's instructions (Table 6); it is the generator's regulatory and construction stage as of December 31 of the reporting year, not a forecast of when it will be built.
  • A generator here can still be cancelled or postponed before its planned year; Form EIA-860 moves a cancelled or indefinitely postponed project to the Retired and Canceled sheet the year that happens, which this dataset does not carry (see eia-plants-idaho-retired, which excludes cancellations too).

How to cite

Understand Idaho, “Form EIA-860, Annual Electric Generator Report, Idaho planned generators”, compiled from U.S. Energy Information Administration, Form EIA-860, Annual Electric Generator Report, Idaho planned generators. Retrieved September 10, 2026. https://understandidaho.com/data/eia-plants-idaho-planned/.

Cite U.S. Energy Information Administration directly for the figures themselves.

This page was last updated .