If your business operates in the PJM footprint — Pennsylvania, New Jersey, Ohio, Maryland, Virginia, Illinois, Delaware, D.C., and beyond — your energy bill is about to feel something most owners never see coming: a sharp jump in PJM capacity charges. It isn't your supplier raising rates, and it isn't something a one-time contract will fix on its own. It traces back to PJM's capacity auction, where prices recently cleared at record highs after years of sitting near the floor.

This guide explains what PJM capacity charges are, why they spiked, exactly who is exposed, and the concrete levers a commercial business can pull to soften the increase.

What Are PJM Capacity Charges?

PJM is the regional grid operator for much of the mid-Atlantic and Midwest. Beyond delivering power moment to moment, PJM has to make sure enough generation will physically exist to meet peak demand years into the future. It secures that promise through an annual capacity auction (the Base Residual Auction), where power plants get paid simply to be available on the highest-demand days.

That payment is a real cost, and it lands on your bill as a capacity charge — sometimes itemized, often folded into your supply rate. The amount you pay is driven by two things: the auction's clearing price, and your facility's capacity tag (also called a PLC, or peak load contribution) — a per-customer value set by how much power you drew during the previous summer's peak hours. Clearing price times your capacity tag is, roughly, your annual capacity cost. For more on the underlying mechanism, see our primer on capacity charges.

Why PJM Capacity Charges Spiked

For years, PJM capacity cleared cheap — supply was plentiful and the price sat near the bottom of its range, so capacity was a quiet, minor line on most bills. That era is over. Recent PJM auctions cleared at record levels, in some zones nearly an order of magnitude above prior years. A few forces collided:

• Demand is surging. Data centers, electrification, and onshoring are driving the fastest load growth PJM has forecast in decades — and AI-driven data center demand in particular has exploded across the region.
• Supply is retiring. Coal and older gas plants are coming offline faster than new generation is being built and interconnected, tightening the reserve margin.
• The math reacts violently to tight margins. A capacity auction is designed to send a strong price signal when supply gets scarce. When the cushion between supply and peak demand shrinks, the clearing price doesn't rise gently — it leaps.

The result is that a charge which used to be a rounding error has become a material part of the all-in cost of power for businesses across the PJM states — and because capacity prices are set a few years forward, the elevated cost is locked in for the near term regardless of what happens next.

Who Is Most Exposed

The increase doesn't hit every business equally. Your exposure depends on your contract and your load shape:

• Businesses with capacity as a pass-through. Many "fixed" supply contracts fix only the energy component and pass capacity straight through. If that's your contract, the auction increase flows directly onto your bill with nothing absorbing it. Knowing which you have is the single most important thing to check — our guide to how business electricity rates are built explains the difference.
• Businesses renewing now. If your contract is expiring, new fixed offers will price the higher capacity cost into the rate. The increase shows up as a higher headline number rather than a separate line.
• High-peak, spiky loads. Your capacity tag is set by your usage during the grid's peak summer hours. A facility that runs hard on the hottest afternoons earns a large capacity tag and pays disproportionately — exactly the cost that peak management can attack.
• Manufacturers and cold storage in PJM states. Energy-intensive operations in Pennsylvania, Ohio, New Jersey, and Maryland feel a capacity spike most because power is a large share of their cost base.

How to Protect Your Business From the Increase

You can't change the auction price, but you have more control over your capacity cost than it appears — because half the equation is your own capacity tag. The levers that work:

• Manage your peak to lower your capacity tag. Your tag is set during a handful of peak hours each summer. If you can curtail or shift load during PJM's coincident-peak hours — through scheduling, on-site generation, batteries, or demand response — you permanently lower the tag that drives next year's capacity bill. This is the highest-leverage move available, and it parallels the 4CP strategy used in Texas.
• Fix capacity in your contract instead of passing it through. A fully-fixed contract that includes capacity transfers the auction risk to the supplier. After a spike, the premium to fix may be worth paying for budget certainty — but it has to be priced against where capacity prices are headed.
• Time your renewal deliberately. Because capacity is set forward, the cost embedded in a new contract depends heavily on which auction years your term covers. The right term length can step around the most expensive years — a judgment that's part of when to lock in rates.
• Audit the charge. Confirm your capacity tag is set correctly and that you're not being billed on a stale or inflated peak. Tags can be wrong, and a wrong tag overcharges you every month until it's fixed. That's a job for a bill audit.

Our Recommendation

The PJM capacity increase is real, it's regional, and it's largely locked in for the next few years — but it is not something to absorb passively. The first move is to find out exactly how exposed you are: pull your contract and check whether capacity is fixed or passed through, and find your capacity tag. From there, the highest-return action for most businesses is attacking the tag itself by managing summer peaks, paired with a renewal strategy that prices the capacity environment honestly rather than reacting to the first quote after the spike.

We manage capacity exposure for more than 4,000 commercial and industrial clients across the PJM region and every other U.S. deregulated market, on a transparent-commission basis. Send us a recent bill and your contract, and we'll show you — for free — how much of your bill is capacity, whether your tag can be lowered, and how to keep the increase from running away with your energy budget.