ES · 10-Q · 2026Q3 · Full report

Wholesale Market Pricing

EVERSOURCE ENERGY · 2026-11-06 · Importance 30 · Surprise 40

CL&P’s wholesale market sales revenue increased primarily because average electricity prices received for wholesale sales were higher. ISO-NE average market prices received by CL&P rose to $71.71 per MWh for the nine months ended September 30, 2026, from $64.09 per MWh in the same period of 2025, an increase of approximately 12%. The filing attributes the higher ISO-NE prices primarily to higher natural gas prices in New England.

Key facts

• NSTAR Electric’s LTRCA rate includes recovery of costs under its Hydro-Québec long-term state-mandated energy purchase contract, which began in the first quarter of 2026, net of wholesale-market sale benefits.
• NSTAR Electric’s wholesale market revenues increased primarily from sales of Hydro-Québec PPA output, which began in the first quarter of 2026.
• ISO-NE average market prices received for CL&P wholesale sales were $51.73/MWh for the third quarter and $71.71/MWh for the first nine months of 2026, compared with $48.79/MWh and $64.09/MWh in 2025.
• Eversource’s electric distribution wholesale market sales revenue increased $68.1 million in the third quarter and $306.2 million in the first nine months of 2026.
• ISO-NE average market prices received for CL&P wholesale sales rose to $71.71 per MWh for the nine months ended September 30, 2026, from $64.09 per MWh in the same 2025 period.
• CL&P’s required Millstone and Seabrook generation purchases are under PURA-approved PPAs entered in 2019.
• NSTAR Electric’s required purchases of renewable hydroelectric energy and renewable energy attributes from Hydro-Québec are under a DPU-approved PPA entered in 2018.
• Higher New England natural gas prices primarily drove the increase in ISO-NE average market prices received for CL&P wholesale sales.