Time to conserve energy so there enough to go around

- Texas’ grid operator asked residents to use less electricity between 4 p.m. and 8 p.m. Tuesday as the demand for power soared because of high temperatures. Enough power ended up being available but an atypical number of power plants that use coal or natural gas has been forced offline, causing the conservation request. Demand rose above 79,000 megawatts at 4 p.m. That's ...

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