93rd largest plant in Idaho · 6210th nationally
Lower No 1 is a hydroelectric power plant in Idaho with a nameplate capacity of 8.0 MW. It generates roughly 39.6k MWh per year — enough to power about 3,769 average U.S. homes.
Its capacity factor of 56% puts it in the middle range — running steadily but not full-time.
| Plant Name | Lower No 1 |
|---|---|
| Operator | City Of Idaho Falls - (Id) |
| City | Idaho Falls |
| County | Bonneville County |
| State | Idaho |
| ZIP | 83402 |
| Coordinates | 43.46868, -112.06250 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 2 | Conventional Hydroelectric | Water | 8.0 MW | Operating | 1982 |
| NERC Region | WECC |
|---|---|
| Balancing Authority | Pacificorp - East |
Hydroelectric plants spin turbines using falling or flowing water — typically from a dam-impounded reservoir. They are dispatchable, long-lived, and emission-free at the point of generation, though large reservoirs can disrupt rivers and ecosystems and methane can be released from flooded vegetation.