PJM’s latest capacity market developments point to a power market that is becoming more expensive, more volatile, and more dependent on policy intervention.

FERC recently approved PJM’s proposal to extend its capacity price collar for two more planning years. The framework places a capacity auction ceiling of roughly $325 per MW day and a floor of roughly $175 per MW day for the 2028/2029 planning year and the 2029/2030 planning year.

On the surface, a price ceiling may appear to be good news for electricity buyers. It limits how high the auction clearing price can move and can reduce immediate bill shock. But a ceiling does not create new generation, solve interconnection delays, accelerate permitting, or offset retirements. It also does not change the fact that large load growth, especially from data centers, is arriving faster than new resources can be built.

The risk is highly likely to show up in higher future power prices. That helps explain why PJM forward power prices have moved higher this year even as natural gas prices have stayed level. The market is not only pricing fuel. It is pricing scarcity, reserve margin risk, reliability concerns, and the possibility that capped capacity prices are suppressing the true cost of maintaining supply.

In the 2027/2028 planning year, PJM cleared at the approved cap of $333.44 per MW day. PJM also reported that the auction left the system 6,623 MW short of its reliability requirement, with a reserve margin of 14.8% compared with a 20% target. Nearly 5,100 MW of the forecast peak load increase was tied to data center demand.

That reserve margin decline matters. Reserve margin is the cushion between expected supply and expected peak demand. When that cushion narrows, the market becomes more exposed to extreme weather, generation outages, forecast errors, and transmission constraints.

This is why the capacity ceiling should be viewed as bullish for PJM power prices. The ceiling may limit the published auction result, but it does not remove the shortage. If anything, it may reinforce the market’s concern that the true cost of capacity is higher than the capped price allows.

That concern can flow directly into forward power prices. When reserve margins fall and capacity prices are capped, the market may demand a higher premium for future electricity because the reliability risk has not disappeared. It has simply moved from the capacity auction into the broader power market.

For large energy users, the message is straightforward. PJM is becoming a tighter market, and tighter markets are more exposed to weather, outages, congestion, and policy changes. Even if natural gas prices move lower, power prices can still rise when the grid is short capacity. The ceiling may be visible, but the shortage is what matters.

At EnerNova, our goal is to put clear facts and data in front of our clients so they can make properly informed decisions, unlike others who try to sell fear. We are energy risk management experts. We help buyers understand what is happening in the market, what it means for their specific contract structure, and how to stay disciplined with strategies that reduce exposure to price volatility. Contact us today to discover the EnerNova Difference.‍