PJM Data Center Proposal Rejected: What Happened Next

In August 2025, PJM Interconnection floated its first major plan to manage exploding demand from data centers. Almost everyone involved rejected it.

The idea was to let large new data centers skip buying capacity in PJM's auctions, in exchange for being cut off first during grid emergencies. Data center companies, power producers, PJM's own market monitor, and several governors all pushed back.

Here is what PJM proposed, why stakeholders objected, and what PJM did next.

What Did PJM Propose for Data Centers?

PJM proposed treating new data centers over 50 MW as "non-capacity-backed load," letting them skip capacity auctions while allowing PJM to curtail them first in emergencies, according to Utility Dive.

The proposal, part of PJM's Critical Issue Fast Path process, would have:

• ●Skipped capacity purchases. Large new data centers wouldn't buy capacity in PJM's auctions.
• ●Curtailed them first. PJM could cut their power before other customers during emergencies.
• ●Fast-tracked some supply. Power plants directly serving data centers would get priority interconnection reviews.

The goal was to keep new data center demand from pushing capacity prices even higher.

What Is PJM's Critical Issue Fast Path?

The Critical Issue Fast Path is a PJM process for tackling urgent problems on a compressed schedule, with stakeholder workshops leading to a decision by PJM's board.

For large loads like data centers, PJM held a workshop on August 26, 2025, and scheduled another meeting for September 15, according to Utility Dive. The goal was to finish the process by the end of the year.

The fast timeline reflects how quickly data center demand is arriving. It also meant stakeholders had little time to work through a proposal that touched capacity markets, interconnection, and state authority all at once.

Why Did Stakeholders Reject the Plan?

Stakeholders across the market objected, arguing the plan overstepped PJM's authority, wouldn't work in practice, and didn't address the real bottlenecks.

The core problem: data centers need power around the clock. Treating them as interruptible load doesn't fit how they actually operate.

Reactions reported by Utility Dive:

• ●Data Center Coalition. Representing companies including Google, Meta, and Microsoft, it said the proposal "exceeds PJM's jurisdiction, undermines market integrity."
• ●Amazon. Urged PJM to drop the proposal and focus on load forecasting and transmission planning.
• ●Constellation Energy. Called it "massive jurisdictional overreach."
• ●LS Power. Called it a "premature, out-of-market reaction."
• ●Governors of Illinois, Maryland, New Jersey, and Pennsylvania. Warned it "may be unpredictable and produce unintended results."

What Did PJM's Market Monitor Warn?

PJM's independent market monitor warned that adding tens of thousands of megawatts of data center load without matching new supply would significantly increase the frequency of interruptions.

Monitoring Analytics said that if PJM added "10,000 or 20,000 or 30,000 MW of large data center loads, all without adding matching capacity, the expected frequency of interruptions will increase significantly."

That's the heart of the issue. Accounting changes can shift who pays, but they don't add a single megawatt of supply.

Endless studies and forecasts, but not a single new megawatt added today.

Who's to Blame for PJM's Capacity Crunch?

Each group points somewhere else: PJM at data center demand, data centers at slow grid expansion, utilities at PJM, and states at utilities and regulators.

Meanwhile, the practical questions go unanswered:

• ●Supply. Where will the new kilowatt-hours actually come from?
• ●Cost. How much will it cost to generate and deliver them?
• ●Payment. Who pays for new generation and transmission?
• ●Households. What happens to residential rates, and who represents those customers?

We've covered how PJM is struggling to meet demand from AI and how nine governors demanded PJM reforms.

What Did PJM Do After the Pushback?

PJM dropped the non-capacity-backed load proposal and its board later approved a different approach that shifts more responsibility to states and utilities, according to Canary Media.

Under the new approach, large data centers of 50 MW or more would need to bring their own new capacity through contracts with suppliers or face curtailment during grid emergencies. States and utilities would handle enforcement.

We covered that plan in PJM's data center fix and what it means for solar owners. PJM has also pursued a reliability backstop auction after its capacity auctions fell short.

What Would Actually Fix the Problem?

Lasting solutions require honest long-term planning, fair cost-sharing, and faster grid upgrades, not accounting changes.

What would help:

• ●Better forecasting. Accurate projections of when and where new load arrives.
• ●Transmission. New lines to bring power from where it's produced to where it's needed.
• ●Faster interconnection. Clearing the backlog of generation waiting to connect.
• ●Fair cost allocation. Making sure large new loads pay for what they require.
• ●Flexible demand. Data centers that can act as grid assets by shifting load.

What Does This Mean for Solar Owners in PJM?

While PJM debates rules, existing solar is already delivering power, and every working system helps ease the capacity crunch.

Existing systems are already connected, so they skip the interconnection queue holding back new supply. But many commercial systems installed in the 2010s are losing output to aging inverters or degraded panels.

Repowering an aging PV system restores that output using the connection already in place.

Start With a Ballpark Estimate

PJM capacity prices are at record levels. Find out what your existing solar project may be worth before deciding whether to repair, repower, or sell.

Sources: Utility Dive, "PJM stakeholders overwhelmingly pan proposal for data center interconnection"; Canary Media, "PJM's big new data center plan: Make the states figure it out"