Since its creation in 1970, the Electric Reliability Council of Texas (ERCOT) has experienced blackouts (or in its vocabulary, rolling outages,) only three times. With the majority of that burden falling on residential properties, the community has cause for interest but not concern according to ERCOTs leaders. We dont expect this summer to have to resort to rotating outages, said ERCOT Director of System Planning Warren Lasher. But, he says, if we have another summer like 2011 , the most extreme summer weve experienced, then were likely to have at least one day in which we start running short on reserves.
Reserves are generators dedicated to picking up the slack when other generators fail, or when there is a greater electrical demand. ERCOT has enough reserves to generate over 3,000 megawatts (MW) . To put that in perspective, one megawatt of electricity can power about 200 Texas homes during the hottest day of the year. Overall, ERCOT has a 74,000 MW capacity .