2021 Texas power crisis

"State officials including Republican governor Greg Abbott initially blamed the outages on frozen wind turbines and solar panels. However, data showed that failure to winterize power sources, primarily those of natural gas, had caused the grid failure. Texas's power grid has long been separate from the two major national grids to avoid federal oversight; this disconnection made it difficult for the state to import electricity from other states during the crisis. Deregulation of its electricity market beginning in the 1990s resulted in competition in wholesale electricity prices, but also cost cutting for contingency preparation."

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