Happy Valley Battery Storage — Plant Summary
- EIA Plant ID
- 67573
- Capacity
- 82 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Operating
- Location
- Canyon, ID
- Operating Since
- 2025
- Generators
- 1
- Operator
- Idaho Power Co
- Parent Company
- IDACORP
- Annual Generation
- -6,807 MWh
- Capacity Factor
- -1.9%
- Balancing Authority
- Idaho Power Company
- ISO/RTO
- —
- NERC Region
- WECC
Happy Valley Battery Storage
OperatingBESS
Ranked #4 of 10 BESS plants in ID#349 of 837 nationally
82 MW BESS operating in Canyon, ID — Idaho Power Company
EIA
82 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2025
Operating Since
Location
Coordinates
43.5507, -116.5116
County
Canyon, ID
Nearby Plants
- Amalgamated Sugar LLC NampaNatural Gas8.2 MW · 8.0 km
- Kuna BESSBESS150 MW · 10.0 km
- Mora Drop Hydroelectric ProjectHydro1.7 MW · 10.6 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Idaho Power Co | Idaho Power | — |
| Owner(s) | Idaho Power Co | IDACORP | — |
| Status | Operating | — | — |
Ownership Chain
About
Happy Valley Battery Storage is an 82 MW battery energy storage system located in Canyon County, Idaho. The plant, which began operating in 2025, is owned by IDACORP and operated by Idaho Power Company. It is the fourth-largest battery storage facility in Idaho (out of 10) and ranks 537th nationally (out of 1205). The facility consists of a single generator utilizing battery technology with a duration of 4 hours. Its primary fuel is listed as 'MWH', indicating it draws power from the grid to charge.
The plant operates within the Idaho Power Company balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. As a relatively new facility, detailed generation and financial data are not yet available. However, its presence has been noted in regulatory news articles.
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
Interconnection Queue1 projectBeta
ActiveBattery80 MWWestLBNL
Generation
−742 MWh
Net Charging
-6.8K MWh
Annual Net Energy
-1.9%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
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
Prevalon brings 80-MW battery storage online for Idaho Power
Prevalon Energy has brought online a four-hour, 80-MW battery storage project that will be owned by Idaho Power, the companies said on June 24, 2025.
Utility Dive·9 months ago
General
‘I’m struggling’: Boise council OKs battery storage facility, but frustrated by city law’s restrictions after Interfaith decision
The Boise City Council held a nearly four-hour hearing on an application from Idaho Power to add a 10-acre, 200-megawatt power storage facility at 2001 E Amity...
Boise Dev·11 months 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
Last updated 2026-03-25
View all 5 articles