(Harrisburg) -- The mid-Atlantic electricity grid operator is asking people to conserve electricity as a wave of bone-chilling cold grips the region.
Valley Forge-based PJM Interconnection says conserving electricity will help ensure there's an adequate power supply.
It says demand for electricity and the need for conservation is expected to be highest tomorrow evening.
So, it's asking people to conserve especially from 6:00 a.m. to 10:00 a.m. tomorrow morning and from 5:00 p.m. to 9:00 p.m. tomorrow night.
PJM suggests people set thermostats lower, postpone using major appliances and turn off lights and appliances that aren't being used.
Forecasters with the National Weather Service in State College say temperatures are expected to around 10 degrees tomorrow with wind chills as low as 17 below.
Support for WITF is provided by:
Support for witf is provided by: