17th largest plant in Alaska · 3890th nationally
International Battery Substation (Ibss) is a battery storage power plant in Alaska with a nameplate capacity of 40.0 MW.
| Plant Name | International Battery Substation (Ibss) |
|---|---|
| Operator | Chugach Electric Assn Inc |
| City | Anchorage |
| County | Anchorage County |
| State | Alaska |
| ZIP | 99518 |
| Coordinates | 61.16989, -149.91307 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| IBSS | Batteries | Battery | 40.0 MW | Operating | 2024 |
| Owner | Location | Share |
|---|---|---|
| Chugach Electric Assn Inc | Anchorage, AK | 7500.0% |
| Matanuska Electric Assn Inc | Palmer, AK | 2500.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
| Balancing Authority | Chugach Electric Assn Inc |
|---|
Battery storage facilities don't generate electricity — they store it. They charge from the grid (often from solar during the day) and discharge during peak demand or to firm up renewables. EIA classifies them as power plants because they connect to the grid like one.