During an April 14 Planning Committee meeting, PJM presented a review of the impacts on electric load from COVID-19

PJM found that, on weekdays last week, the peak came in on average 8-9% lower (~7,500 MW) than what PJM forecasters would have anticipated.

The largest impacts thus far were around 10-11% on March 26th and 27th (~9,500 MW).

Energy has tended to be less affected, with the average weekday reduction since mid March being 7% (~140 GWh per day) compared with 8% on peak.

Weekends seem to have been impacted by less (~2-4%)

See the presentation here