Boise Bench BESS — Plant Summary
- EIA Plant ID
- 68799
- Capacity
- 150 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Planned
- Location
- Ada, ID
- Operating Since
- —
- Generators
- 1
- Operator
- Idaho Power Co
- Parent Company
- IDACORP
- Balancing Authority
- Idaho Power Company
- ISO/RTO
- —
- NERC Region
- WECC
Boise Bench BESS
PlannedBESS
Ranked #3 of 10 BESS plants in ID#241 of 837 nationally
150 MW BESS planned in Ada, ID — Idaho Power Company
EIA
150 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
Planned: —
Planned Operation
Location
Coordinates
43.5575, -116.1548
County
Ada, ID
Nearby Plants
- Barber DamHydro4.1 MW · 2.7 km
- Boise R DiversionHydro3.3 MW · 5.4 km
- Lucky Peak Power Plant ProjectHydro101.2 MW · 8.4 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Idaho Power Co | Idaho Power | — |
| Owner(s) | Idaho Power Co | IDACORP | — |
| Status | Planned | — | — |
Ownership Chain
About
The Boise Bench BESS is a battery energy storage system located in Ada County, Idaho. The plant has a total capacity of 150 MW and consists of a single generator. It is owned by IDACORP and operated by Idaho Power Company. The primary fuel type is electricity (MWH), indicating that it charges from the grid and discharges when needed. The plant operates within the Idaho Power Company balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
Boise Bench BESS is the third-largest battery storage facility in Idaho, based on capacity, and ranks 380th nationally out of 514 such facilities. The plant has been the subject of at least one news article related to regulatory matters.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Idaho Power Company
Grid Voltage
138 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
No generation data available for this plant.
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (5)Beta
Regulatory·permitting
Idaho Power Company; Notice of Intent To File License Application, Filing of Pre-Application Document, and Approving Use of the Traditional Licensing Process
Federal Register (FERC)·3 days ago
General
Idaho Power seeks regulatory approval of 100MW additional BESS after offtake agreement with Savion falls through
Idaho Power is seeking approval from the state regulator to deploy an additional 100MW of BESS to plug the gap left within its portfolio.
Energy-Storage.News·1 years ago
General
Idaho Power seeks regulatory approval of 100MW additional BESS after offtake agreement with Savion falls through
Idaho Power is seeking approval from the state regulator to deploy an additional 100MW of BESS to plug the gap left within its portfolio.
Energy-Storage.News·1 years ago
Regulatory·permitting
Idaho Power BESS set for regulatory approval despite uncertainty over project, augmentation costs
Idaho Power to develop a 150MW standalone BESS at its Boise Bench substation located in Ada County, Idaho.
Idaho Power (developer)
Energy-Storage.News·1 years ago
Last updated 2026-03-25
View all 5 articles