Why didn't anyone warn us?
/Sam Holeman, Duke Energy’s vice president of system planning and operations, said the Carolinas had experienced some of the coldest temperatures since the 1980s. He also stated that between midnight on Dec. 23 to 6 am on Dec. 24, Duke Energy’s operating reserves had been depleted and that load forecasting and predicting operational conditions in that run-up will be a central part of an inquiry by both the Federal Energy Regulatory Commission (FERC) and North American Electric Reliability Corporation (NERC).
He said there wasn’t any more power to purchase at that point, and surrounding areas were faced with the same situation.
…. Duke Energy’s “nuclear fleet” was reliable during the storm, according to Preston Gillespie, Duke Energy’s executive vice president and chief generation officer. Still, he said, in a few cases, insulation and heat tracing did not prevent instrumentation lines from freezing which caused a reduction in generation.
He also said that solar generation performed as expected but was not available to meet the peak demand since the peak occurred before sunrise. This problem is concerning if another outage occurs during high demand periods that include several cloudy days.