PJM Capacity Price Cap Extension: What CRE Owners Need to Know

On April 28, the Federal Energy Regulatory Commission (FERC) approved PJM’s request to extend its capacity auction price collar for two additional delivery years, This decision is projected to save 67 million electricity buyers across the PJM footprint roughly $27 billion on their energy bills.

For commercial real estate owners with portfolios across PJM’s 13-state region, which spans from Northern Virginia and Washington, D.C. to Chicago, Philadelphia and northern New Jersey, the PJM capacity price cap extension brings a measure of predictability to one of the most volatile commodities. But it doesn’t eliminate the underlying pressure, and the next auction is only weeks away.

In this blog, we’ll cover what the extension does, why it’s happening and what commercial real estate owners should be watching.

What the PJM Capacity Price Cap Extension Actually Changes

The price collar caps how high, and how low, PJM’s capacity auction can clear. Under the extended framework, prices are bounded by a $325/MW-day ceiling (the cap) and a $175/MW-day floor.

That collar will apply to two auctions: the Base Residual Auction closing July 7, 2026, which procures capacity for the 2028/2029 delivery year and the auction closing December 15, 2026, for the 2029/2030 delivery year. Without the extension, the 2028/2029 auction was scheduled to run with a $550/MW-day cap and no floor, a structure that, given current grid conditions, would almost certainly have produced another record-high clearing price.

For context, the most recent 2027/2028 auction cleared at $333.44/MW-day, which was the maximum allowable under the original temporary cap. Three PJM capacity auctions in a row have now cleared at or near their ceiling.

Why PJM Extended the Cap

The capacity market exists to make sure there’s enough committed generation to meet peak demand three years out. When supply tightens, prices spike and PJM’s supply is tightening fast.

The single biggest driver is data centers. PJM’s footprint contains the world’s largest concentration of data centers in Northern Virginia, with significant new build-out underway across Ohio, Pennsylvania, Maryland and Illinois. PJM’s most recent demand forecast jumped significantly, with nearly all of that growth attributable to AI infrastructure and large-load interconnections.

That demand surge has run ahead of new generation coming online. The result is a structural supply-demand imbalance that capacity auctions, if left uncapped, translate directly into pass-through costs on every customer’s bill.

The price collar is one piece of a broader PJM Board reform package designed to contain volatility while the grid catches up. Combined with prior market interventions, total projected savings now stand at roughly $45 billion over the four years the collar will be in effect.

What the Extension Means for Commercial Real Estate Portfolios

Capacity charges show up on commercial electricity bills as a pass-through cost, typically a per-kW or per-kWh adder calibrated to each property’s contribution to peak demand. When auction prices clear higher, those adders rise. For a large multi-state commercial real estate portfolio, capacity costs can swing six- and seven-figure annual totals based on a single auction outcome.

The extension does three useful things for commercial real estate owners:

1. It puts a ceiling on the worst case. A $325 cap is still elevated by historical standards, but it removes the tail risk of an uncapped auction clearing well above $500/MW-day.

2. It improves budget visibility through 2030. Capacity costs are now bounded for the next four delivery years, which makes multi-year contract decisions less of a guessing game.

3. It does not eliminate volatility. A $175 floor means capacity costs won’t collapse if the supply picture suddenly improves. CRE owners locking in long-dated contracts still need to model where within the collar prices are likely to clear.

What to Watch Next

The July 7 auction is the first real test of the extended collar. If it clears at or near the $325 ceiling, as the last three auctions have, that confirms the market is still supply-constrained even with the cap in place. The signal would be continued upward pressure on capacity-driven line items through at least the 2029/2030 delivery year.

Commercial real estate owners should be asking three questions right now:

• Do my current supply contracts pass capacity costs through, and at what reference price?
• Are my properties in load zones (like Dominion, BGE, or PSEG) where capacity charges run highest?
• Does my procurement strategy treat capacity as a managed variable, or am I absorbing whatever the auction returns?

The Bigger Picture

The PJM capacity price cap extension is good news. It’s also a reminder that the underlying market is still tight, and the buyers who treat energy like an investment, not a line item, are the ones who come out ahead.

Want to see how the extended PJM capacity price cap affects your portfolio specifically? Book a meeting for a capacity-cost assessment ahead of the July 7 auction.