Nebraska Public Power District likely set a generation record to meet customer demand during the subzero weather earlier this week.
NPPD said it generated an estimated 2,256 megawatts of electricity between 7 a.m. and 8 a.m. Monday. The old winter record was 2,219 megawatts in December 2009.
NPPD spokeswoman Jeanne Schieffer said NPPD couldn't be certain of Monday's record figures because all the data had yet to be assembled. The utility says an estimated one million people depend on it for electricity, either as retail customers or as customers of utilities that buy power from NPPD.