PJM Real-Time Power Market Dashboard

Mid-Atlantic and Southern PJM heat was the primary weather driver behind today’s load peak. Around the HE18 system peak, Washington DC was in the low-90s, Richmond was in the mid-90s, and Philadelphia/Newark were in the upper-80s, sustaining strong cooling demand. More moderate conditions in western and northern PJM, including Chicago in the mid-70s and Pittsburgh/Columbus in the upper-70s to low-80s, helped temper the broader RTO peak but did not offset the eastern and southern heat.

Through HE22, PJM load rose from a low near 90.0 GW in HE5 to an actual peak of 132.8 GW in HE18. Real-time prices averaged above day-ahead, with DA LMP at about $60.12/MWh versus RT LMP at about $63.49/MWh, producing an average DART of -$3.38/MWh. The market was tightest in HE16-19 as load stayed above 130 GW, solar output began rolling off, and gas and coal generation were heavily dispatched.