PJM Ready To Meet Summer Demand

PJM is ready to meet the expected power demand of 61 million consumers this summer, when demand is forecasted to reach 152,131 megawatts at its peak.

PJM has 183,912 MW of installed generating capacity available to use. More than 8,700 MW of demand response is also available, which represents power use that is willing to be interrupted in case of a system emergency. One megawatt of electricity is enough to power 800 to 1,000 homes.

“Summer tests the system as people try to keep cool in hot and humid weather,” said Mike Bryson, vice president – Operations. “With continued transmission enhancements, reinforced capacity commitments and slowing forecasted load growth, we’re prepared to meet the region’s needs.”

Preliminary forecasted peak conditions for the summer are:
Forecast Load Total 152,131 MW
Demand Response and Energy Efficiency 8,777 MW (est.)
Forecast Load Less Demand Response 143,354 MW
Installed Generation Capacity 183,914 MW
Available Reserve Margin 28.3 percent
Required Reserve Margin 16.4 percent

PJM’s available resources represent a reserve margin of 28.3 percent, well above the required 16.4 percent margin. A reserve margin ensures that there will still be enough power to meet consumers’ needs in case demand is higher than forecasted or if generation is unexpectedly unavailable.

This summer is the first to include capacity that will follow PJM’s Capacity Performance standards. Capacity Performance resources must produce electricity when called on regardless of weather conditions or extreme system conditions.

Committed resources that do not perform when called upon will face significant non-performances charges. These resources were committed in a transitional capacity auction in August 2015.

Last year’s summer peak demand for electricity was more than 143,500 MW, which occurred on July 28. The highest use of power in PJM was nearly 166,000 MW in 2006.