Pennsylvania businesses have another reason to watch the PJM electricity market.
A new study commissioned by the Pennsylvania Public Utility Commission (PUC) warns that rapidly growing electricity demand could create serious reliability risks across Pennsylvania and the broader PJM region if new supply does not keep pace.
The pressure comes mainly from two directions. Data center development is adding enormous new loads to the grid, while existing power plants are retiring and replacement generation is slow and expensive to build.
For Pennsylvania businesses that depend on reliable, competitively priced electricity, these developments deserve attention now.
The reliability risk is years away, not decades
The PUC commissioned Synapse Energy Economics to examine whether enough electricity resources will be available to serve customers as demand grows and existing generation retires.
Using PJM’s current load forecast and assuming no additional policy action, the study found that the regional grid fails to meet PJM’s reliability planning standard from 2027 through 2030. By 2030, modeled reliability risk under the study’s reference scenario is nearly six times PJM’s planning standard. Under the more severe scenario, the study projects more than 13 potential loss-of-load events per year starting in 2030. The planning standard allows one event every 10 years.
The PUC stresses that this does not predict a specific number of outages for customers. Instead, the modeling shows how quickly reliability risk can rise when demand outpaces the resources available to serve it.
Data centers are a major part of the equation. Under the severe scenario, projected new data center demand across PJM between 2029 and 2030 alone would exceed Pennsylvania’s entire current annual electricity demand.
“Time matters,” said PUC Chairman Steve DeFrank. “The changes highlighted in this report are not decades away. The reliability pressures emerge during the next several years.”
The full PUC announcement is available from the Pennsylvania Public Utility Commission.
PJM’s capacity auctions are showing strain
PJM’s capacity market tells a similar story.
PJM runs a capacity market to make sure enough generation and demand response resources are available to meet future electricity needs. Capacity is bought years in advance, supporting grid reliability and sending a price signal to generators.
For the 2027/2028 delivery year, PJM’s capacity auction cleared at $333.44 per megawatt-day, the federally approved price cap. Even at that price, the region fell 6,623 megawatts short of PJM’s reliability requirement.
The 2028/2029 auction followed the same pattern. PJM procured 138,318 megawatts of unforced capacity from generation and demand response, and the price again cleared at the cap, this time $325 per megawatt-day. Supply still came in 6,831 megawatts below the reliability requirement. According to PJM, these two auctions were the first in its history in which the entire region fell short.
PJM’s explanation is direct: demand for electricity, driven heavily by large data center loads, is growing faster than new supply can be added.
Capacity is only one part of electricity pricing, and these results are not a forecast of what any individual Pennsylvania business will pay. They do show how much conditions in the PJM market have shifted.
What this means for Pennsylvania businesses buying electricity
Businesses can’t control PJM’s supply picture, but they can control how they buy electricity. In a market facing rapid demand growth and tighter supply, waiting until a contract is about to expire can unnecessarily limit a business’s options.
Commercial buyers should know when their current agreement expires and how it is structured. They should also start watching market conditions well before a purchasing decision is due.
That doesn’t mean signing a new contract immediately. Starting early gives a business time to understand what is happening in the wholesale market, compare contract structures, and act when conditions favor it.
Both the PUC study and PJM’s recent auctions point the same way: demand is climbing faster than new supply can arrive. For Pennsylvania businesses, electricity procurement is becoming a decision that rewards planning ahead.
Take control of your facility’s energy costs now. Talk with an energy broker today by calling 1-855-347-0007.
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