According to California Independent System Operator (ISO) figures, energy usage is down for week 13 as California experienced milder temperatures as compared to the same time period last year. Overall, weekday power usage was down roughly 10% as compared to the same time last year.
However, according to Sense, a company that uses data to make more energy-efficient households, overall energy consumption has been on the rise during the pandemic. According to Sense’s figures, mid-day use (10:00 a.m. to 3:00 p.m.) among California households is up more than 28% during the shelter-in-place. Overall, California home energy usage is up more than 21% during the shelter-in-place. While overall energy usage is down, home usage is up.
With demand dropping, all supply sources were even or have dropped during the pandemic as compared to the same time last year. Coal, imported, and nuclear power were virtually even when compared to the same period last year. Renewables were down more than 250 megawatt hours (MWh) and large hydro power is down more than 2,100 MWh when compared to the same time last year. Natural gas was down approximately 600 MWh. However, in a three-day window, natural gas peaked around 7:00 p.m. between 16,000 and 20,000 MWh.