On March 18, 1917 the San Francisquito Power Plant No. 1, Unit 1 was placed in service and energy was delivered to Los Angeles over a newly constructed 115 kV transmission line. The 200 kilowatts generated by Unit 1 were the first commercial kilowatts generated by the Los Angeles Bureau of Power and Light. Subsequently, on April 16 and April 28, 1917, Units 2 and 3 respectively were placed in operation.
When opened, Power Plant No. 1 would provide over 70% of the power needs of Los Angeles. The plant is still in operation today, but only delivers a small fraction (0.5%) of LA's power needs.
| Turbine | Unit 1 | Unit 3 | Unit 4 | Unit 5 |
| HP capacity | 33,968 | Unknown | Unknown | 33,968 |
| MFG | Fuji | Pelton | Pelton | Fugi |
| Type | Impulse | Impulse | Impulse | Impulse |
| Position | Horizontal | Horizontal | Horizontal | Horizontal |
| Year in Service | 1983 | 1917 | 1923 | 1987 |
| Generator | Unit 1 | Unit 3 | Unit 4 | Unit 5 |
| MW Capacity | 25 | 10.7 | 12.3 | 25 |
| MFG | Fuji | Westinghouse | Westinghouse | Fuji |
| Year in service | 1983 | 1917 | 1923 | 1987 |
Additional Information:
Water and Power.org