Ron Nichols president of Southern California Edison (SCE), talks during a news conference launching a unique systems combining a hybrid battery and gas turbine to produce and store electricity at the SCE Center Power Plant in Norwalk, Calif., on Monday, April 17, 2017. Nichols said the twin systems that went online March 30 operate somewhat like a hybrid car, drawing first on the battery, then switching over to the gas turbine if power demands spike. (AP Photo/Christopher Weber)
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