RRI Energy Inc., a Houston-based power producer, cut output at a natural gas-fired electricity plant in California.
The 320-megawatt Etiwanda Generating Station Unit 3 was operating at 8 percent capacity, having idled 295 megawatts for unplanned reasons as of 3:15 p.m. local time today, the California Independent System Operator said in a status report.
The unit was operating at full capacity at the same time yesterday, a previous report showed.
The generator is part of a 640-megawatt station that is located east of Los Angeles in Rancho Cucamonga.
One megawatt can power 800 typical U.S. homes.
To contact the reporter on this story: Mark Chediak in San Francisco firstname.lastname@example.org.