Energy Market Daily Digest — September 8, 2026

Market status — September 8, 2026

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PJM — DOE 202(c) order active through end of day; 5CP tags likely finalized

• 5CP Capacity Tags: Early September heat dome pushed PJM to an integrated hourly peak of 152,518 MW on Sept. 1, the highest level in recent weeks and a strong candidate for the final 5CP tag. EIA 2026 demand growth projections at 3.3% annually continue to pressurize capacity sufficiency across the region per utility data.
• Real-Time LMP: Maximum Generation and Load Management Alerts were issued Sept. 1-3, with zone spreads elevated in Dominion, BGE, and Pepco territories during peak periods. Weekend cooling has moderated prices, though DOE emergency order permits backup generation dispatch through Sept. 8.
• Demand Response: Pre-Emergency Load Management Action called on Sept. 1 across five territories (Pepco, BGE, AEP, Dominion, ComEd). DOE 202(c) order effective through Sept. 8 allows environmental permit relief and possible large-load backup dispatch. No additional DR calls reported since Sept. 1.

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NYISO — Stable ICAP transition; statewide demand response platform under development

• ICAP Tag Tracking: No UCAP tag updates or auction results in past 24 hours. NYISO staff proposal for new demand curve shape under review, targeting 2027 capability period impact on capacity pricing mechanics.
• CBEP Program Alerts: No Customer Benefit Emergency Participation alerts active. New York advancing statewide demand response platform (Excelsior Power Program) to consolidate utility DR programs and improve dispatch coordination.
• Day-Ahead Pricing: No zone spreads flagged. NYISO operational budget discussions continue with stakeholder focus on large load show-cause compliance and 2027 project prioritization.

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ERCOT — September 4CP window closing; late-season sunset dynamics in play

• 4CP Season Tracking: Final month of 4CP window (June-Sept) underway. Earlier sunsets cut solar contribution while evening wind remains lower than August, making late-afternoon peaks on remaining hot weekdays the primary 4CP risk. Summer 2026 resource adequacy confirmed sufficient per ERCOT operations outlook.
• ORDC Pricing: No reserve shortfalls or high ORDC adder events reported. Operating reserves tracking within normal parameters. Real-time dispatch procedures remain standard.
• Grid Condition Alerts: No Weather Watch, Conservation Alert, or Emergency Notice in effect. ERCOT missed deadline to notify T&D providers of data center classification status in Batch Zero large load study, creating uncertainty on large load interconnection timeline.

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ISO-NE — Record offshore wind output; capacity market reform momentum continuing

• FCM Tag Events: No qualification events or show-cause notices. ISO-NE proposal to shift forward auction to prompt capacity auction (effective 2028) remains primary structural change under stakeholder review.
• Capacity Market Integration: Region’s offshore wind fleet achieved record 930 MW combined output on Aug. 30 evening, demonstrating seasonal renewable capacity potential. Three operational projects contributing to autumn supply stack diversification.
• Load Forecasting: No elevated demand conditions forecast this week. CELT 2026 report projects 0.9% annual consumption growth through 2035, within historical norm.

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MISO — Record September 123 GW peak on Sept. 2 triggered emergency; fall pricing at $33.92/MW-day

• Zonal Pricing: Early September heat dome produced highest-ever MISO September peak of 123 GW on Sept. 2 (above prior 122 GW July record), with elevated day-ahead pricing across footprint that afternoon. Zonal spreads widened during peak window; cooling into weekend has moderated spreads.
• Planning Resource Auction: Fall 2026 (Sept-Nov) capacity clearing at $33.92/MW-day, down sharply from summer $424.30/MW-day. Annual prices reflect $126.19/MW-day North/Central, $116.06 Local Zone 8/10, $123.12 Local Zone 9.
• Real-Time Settlements: MISO entered emergency procedures for entire footprint on Sept. 2 (second emergency event this summer), driving emergency pricing in RT settlements and possible LMR make-whole activity. MISO retiring web-based market reports Sept. 30; data migration to Data Exchange API underway.

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CAISO — No flex alerts; Western market consolidation and EDAM joining activity dominate

• Flex Alerts: No Flex or Energy Emergency Alerts issued. 2026 summer assessment projected 2,547 MW surplus above one-in-ten standard; September has cleared without conservation call to date.
• Renewable Curtailment: No overgeneration events flagged. Solar and wind output tracking within normal seasonal patterns. Wholesale energy costs in region down sharply YoY despite rising residential customer bills, per CEC analysis.
• NQC Integration: No new RA deficiency notices. BPA considering strategic pivot from SPP Markets+ to CAISO EDAM under specified independence conditions. Portland General Electric on track to join EDAM on Oct. 1, continuing Western market consolidation momentum.

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Cross-Market Watch — Early September heat dome fades; large load regulatory pathway clarifying

• Regional Weather: Heat dome that drove PJM 152.5 GW Sept. 1 peak and MISO 123 GW Sept. 2 record has moderated through weekend. PJM DOE 202(c) emergency order remains effective through Sept. 8 but conditions normalizing. No extended heat pattern forecast through mid-September.
• Federal Regulation: FERC directed NERC to file reliability standards for computational large loads by end of 2026, following NERC Level 3 Alert. Standards development expected to establish baseline requirements for data center modeling and emergency participation across all regions.
• Market Calendar: PJM Reliability Backstop Procurement opens Sept. 30. MISO generator interconnection application deadline Sept. 10. Supply chain restrictions on bulk power equipment imports effective immediately. Multiple market rule proposals under review in stakeholder committees.

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