He said changes should have been made after a winter storm caused blackouts in Texas in 2011, when a report called for the mandatory weatherization of power plants. They said natural gas facilities also should have cold-weather plans and be able to operate during weather emergencies. That limits the ability of the grid operator, the Electric Reliability Council of Texas, to import power from neighboring states. The preliminary report made no recommendation on the issue; a FERC staffer said it needs further study. Supply issues were mostly related to natural gas, including frozen wellheads.

Source: ABC News September 23, 2021 17:56 UTC