You aren’t the only one who’s been turning up the thermostat during the current cold spell.

Puget Sound Energy has broken records in delivering electricity and natural gas to homes and businesses in western Washington, including the Covington, Maple Valley and Black Diamond areas. On Monday alone, the utility (PSE) reports it set a new hourly electric system peak of 4,906 megawatts (MW). The previous mark of 4,847 MW was set on Dec. 21, 1998.

Also on Monday, PSE set a record natural gas send-out of 755,881 million British thermal units (the measurement for natural-gas). That surpassed the old record of 741,881 on Nov. 28, 2006, and is well above the average daily December natural gas send-out of 500,000 MMBtu.

With temperatures forecast to remain colder than usual for several more days, PSE is encouraging customers to use energy wisely, particularly during peak energy periods, in order to manage their winter heating bills and conserve the energy delivery system.