Why PJM’s Peaks Are Creating More Risk and More Opportunity
In April, PJM Interconnection LLC announced it is seeking 15 gigawatts of new power supplies in an emergency proposal to address potential electricity shortages stemming from the boom in artificial intelligence.
PJM—the grid operator for 13 states in the Mid-Atlantic and Midwest and the District of Columbia—is facing a capacity shortfall.
Prices rose to their highest level on record, reflecting tightening supply and limited new generation.
Forgive the pun … there’s a real “convergence” of market, policy, and grid conditions in PJM that makes battery storage materially more valuable right now than even a few years ago.
PJM Peaks’ Impact on Industrial Facilities
Peak management is becoming a major economic lever. For many industrial facilities in PJM, avoiding operation during just a handful of coincident peak hours can now influence:
- Annual capacity costs by hundreds of thousands or millions of dollars
- Demand response revenues
- Reliability exposure during extreme weather
- Return on investment for battery storage, microgrids, and onsite generation
The data increasingly supports the view that PJM peak events are no longer just a grid reliability issue—they are becoming a major industrial competitiveness issue as capacity prices, reserve margin concerns, and load growth continue to accelerate.
The Role of Battery Storage on Your Bottom Line
By managing load during PJM’s five highest-demand hours, battery storage helps businesses lower future capacity costs while reducing grid stress.
Battery storage can be deployed faster than any other grid asset, providing peak-shaving, load-shifting, and demand-response capabilities that strengthen reliability now—not a decade from now.
Battery storage systems can typically be sited, permitted, and operational in under two years—well ahead of most new generation projects. Each year of delay risks higher capacity charges, reliability events, and lost savings potential.
As we’ve said before at Convergent Energy and Power, “battery storage turns volatility into opportunity.” In PJM’s rapidly shifting market, battery storage provides a dependable, scalable solution that supports both business cost savings and utility reliability goals.
Let’s dig into the data …
5 Reasons Batteries Will Benefit Your PJM Business
1. Capacity Costs Have Increased by 800%+ in Some Cases
One of the clearest indicators of the market opportunity is reflected in PJM's recent capacity auction results. For the 2025/26 delivery year, the RTO-wide capacity clearing price jumped from approximately $28.92/MW-day to $269.92/MW-day — nearly a 10-fold increase in a single auction.
For the following auctions:
- 2026/27 cleared at $329.17/MW-day
- 2027/28 cleared at $333.44/MW-day (the auction cap)
The total PJM capacity market cost has risen from roughly:
- $14.7 billion to
- $16.1 billion, then
- $16.4 billion in the latest auction cycle.
2. Peak Demand Is Growing Faster Than Supply
PJM's demand outlook has changed dramatically. In the face of unprecedented load growth, PJM continues to warn that demand growth is outpacing new generation construction. Recent auctions attracted only about 2.7 GW of new generation and uprates, while forecast demand increased by more than 5.4 GW. Recent auctions showed:
- Peak load forecasts increasing by more than 5,000 MW year-over-year
- Forecast peak demand exceeding 159 GW
- New load growth driven heavily by data centers and electrification.
Meanwhile:
- PJM reported roughly 6.6 GW of generation retirements or planned deactivations
- New generation additions have not kept pace with demand growth.
For industrial users, this means the system is becoming more dependent on load management during peak periods and demand response.
3. PJM Recently Failed to Meet Its Reserve Margin Target
A major warning sign came in the latest capacity auction. PJM noted this was the first time since the capacity market was established in 2007 that the auction did not fully meet the reliability requirement. PJM procured:
- 145,777 MW of capacity but remained approximately 6,500 MW short of its reliability target reserve margin.
For industrial operators, that increases concern about:
- Higher scarcity pricing during extreme weather
- Reliability-driven curtailments
- Emergency demand response events
4. Industrial Facilities Can Face Very Large PLC Exposure
Consider a manufacturing facility with a 20 MW peak demand.
If that facility is operating at full load during PJM's annual peak hours, its Peak Load Contribution (PLC) could be close to 20 MW. Using recent auction prices:
- At ~$30/MW-day, annual capacity costs were roughly:
- 20 MW × $30 × 365 ≈ $219,000/year
- At ~$330/MW-day:
- 20 MW × $330 × 365 ≈ $2.4 million/year
Actual billing depends on utility-specific allocations and transmission zones, but it illustrates why industrial customers are increasingly focused on coincident peak management. The cost difference can be measured in millions of dollars annually. Some PJM transmission-constrained zones cleared well above the RTO-wide price. Industrial facilities located in constrained zones can therefore face even larger cost impacts than the PJM average.
5. The Growth Outlook Suggests Continued Pressure
PJM projects peak demand growth continuing for years. Recent forecasts indicate:
- Peak demand could reach approximately 222 GW by 2036
- Growth of roughly 66 GW over the next decade
- Data centers may account for approximately 90 GW of future load growth.
Convergent Energy and Power: Proven Battery Storage Expertise
Industrial facilities in PJM who have access to battery storage will be best positioned to capture both economic and reliability benefits relative to businesses who do not.
Now is the time for PJM businesses to plan ahead and insulate themselves against the challenges facing the electric grid in PJM.
For fifteen years, Convergent Energy and Power (Convergent) has gained deep expertise by working closely with businesses to take the hassle out of energy storage by building, owning, and operating systems on our customers’ behalf. We’ve been developing battery storage systems for as long as the battery storage sector itself.
We’re proud to say that it has never been easier to benefit from battery storage—and in the case of PJM, the timing has never been better.
Schedule a free, no-obligation introductory call with our team today to explore how we can support your energy goals.