PJM’s 2028/29 Base Residual Auction: What the New Capacity Landscape Means for Mid‑Atlantic & PJM‑Based Businesses
- Tony Zelinski
- a few seconds ago
- 4 min read
The PJM Interconnection released its 2028/29 Base Residual Auction (BRA) results on July 14, 2026, securing 138,318 MW of unforced capacity (UCAP) for the June 2028–May 2029 delivery year. While headline clearing prices remained flat, the underlying fundamentals reveal a system operating with tightening reserves, rising peak load expectations, and persistent supply‑demand imbalance.
For commercial and industrial customers across the Mid‑Atlantic, these dynamics directly influence long‑term energy budgets, risk exposure, and load management strategy.
⚡ 1. Clearing Prices Hit the FERC‑Approved Cap — Again
Across all PJM Locational Deliverability Areas (LDAs), the auction cleared at the price cap of $325/MW‑day (UCAP) — identical across the RTO.
Down 2.5% from last year’s $333.44/MW‑day
$8.44/MW‑day decrease year‑over‑year
Third consecutive auction constrained by the price collar established by PJM, FERC, and the governors of all 13 PJM states
Interpretation: Prices are not reflecting true market conditions. They are reflecting the regulatory collar, masking deeper structural tightness in supply.
📈 2. Peak Load Forecasts Continue to Rise
PJM’s forecasted peak load for 2028/29 increased by 1,375 MW compared to the prior BRA.
Demand growth continues to be driven by:
Electrification
Large‑scale data center expansion
Industrial load additions
Weather‑normalized growth across multiple states
This is the second consecutive year PJM has missed its reliability requirement.
⚠️ 3. Reliability Requirement Missed Again — Short by 6,831 MW
The 2028/29 BRA cleared 6,831 MW short of PJM’s reliability requirement of 156,013 MW.
Last year’s BRA was short by 6,500 MW
PJM still maintains a 14.7% reserve margin, but this margin can shift before June 2028
Shortfalls do not mean PJM cannot serve load — but they increase risk and reduce operational flexibility
PJM’s response: A special Backstop Procurement is planned for September 2026 to address near‑term reliability needs.
🏭 4. Supply Increased — But Not Enough
Supply offered into the auction increased:
+3,447 MW UCAP offered (139,595 MW vs. 136,148 MW prior year)
+3,733 MW UCAP cleared (138,318 MW vs. 134,585 MW prior year)
525 MW of new generation/uprates cleared
Despite these increases, PJM remains structurally short.
🔌 5. Resource Mix: Gas Dominates, Renewables Grow Slowly
PJM’s cleared resource mix for 2028/29:
46% Natural Gas
20% Demand Response
18% Nuclear
5% Wind
4% Solar
2% Hydro
2% Oil
1% Coal
Demand response continues to play an outsized role, and renewable penetration remains modest relative to load growth.
🧭 6. PJM’s Strategic Actions to Address Structural Tightness
PJM is pursuing multiple initiatives to accelerate supply growth and manage demand:
Clearing the interconnection queue backlog
Implementing a streamlined cycle process
Launching a Reliability Backstop Procurement (FERC filing pending)
Developing Connect & Manage frameworks for large flexible loads (e.g., data centers)
Creating a temporary Expedited Interconnection Track for up to 10 shovel‑ready, high‑capacity projects
Maximizing performance of existing generation
Advancing long‑term market reform via the Powering Reliability Through Market Design initiative
These actions reflect PJM’s recognition that the price collar alone cannot solve the underlying supply‑demand imbalance.
💰 7. What This Means for Your Business: Capacity Cost
Impacts
Capacity costs are calculated by multiplying the final capacity rate by a customer’s Peak Load Contribution (PLC).
Cost Example (Using 2028/29 BRA Rates)
For a business with a 1 MW PLC:
Monthly: 325 /MW-day×1 MW×31 days=$10,075
Annually: 325 /MW-day×1 MW×365 days=$118,625
PLC management remains the single most effective lever businesses can use to control capacity costs. PEM’s load management strategies can materially reduce exposure.
📅 8. Upcoming Auctions & Market Milestones
Next BRA: December 9, 2026 (for 2029/30 DY)
3rd Incremental Auction (IA) for 2027/28: February 2027
2nd IA for 2028/29: July 2027
Return to classic 3‑year‑forward BRA schedule: May 2027 (for 2030/31 DY)
This return to normal scheduling will improve forward visibility for procurement planning.
🧠 PEM Perspective: Strategic Implications for 2026–2029
1. Budgeting & Risk Management
Flat clearing prices do not mean flat risk. Structural tightness and rising peak loads increase exposure for businesses with unmanaged PLCs.
2. Load Management Becomes More Valuable
With PJM missing reliability requirements two years in a row, demand response and load management programs will continue to be rewarded.
3. Interconnection Reform Will Shape Future Pricing
If PJM’s expedited tracks succeed, supply additions could ease long‑term pressure — but not in the near term.
4. Data Center Growth Is Reshaping PJM
Connect & Manage frameworks signal PJM’s recognition that hyperscale load growth is now a core reliability driver.
Final Takeaway for PEM Clients
The 2028/29 BRA results reinforce a clear message: PJM is entering a multi‑year period of tight supply, rising demand, and elevated reliability risk — even with price caps in place.
Businesses that proactively manage PLC, optimize load profiles, and engage in strategic procurement will be best positioned to control costs and reduce exposure.
PEM will continue to monitor PJM developments, Backstop Procurement outcomes, and interconnection reform impacts to keep clients ahead of market shifts.
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