ISO New England Power & Gas: Cheap Gas, Expensive Winter Power — The Massachusetts Winter Paradox
ISO New England / Massachusetts Power & Gas Market Update | October 2026
Massachusetts energy buyers face a paradox this winter: natural gas itself is cheap, but delivered power in New England is anything but. National gas prices are soft, storage enters winter at its highest level since 2016, and long range forecasts lean mild. Yet January 2027 power at the ISO New England Hub trades near $182/MWh on-peak, and January gas at Algonquin Citygate carries a premium of nearly $18 over Henry Hub. The problem in Massachusetts is not supply. It is pipe — and until that changes, the playbook for a Massachusetts buyer looks very different from the one for a New Jersey buyer.
Power Pricing: Winter Commands a Massive Premium
ISO New England Hub on-peak power averages $164.37/MWh from December through February, against just $57.26/MWh for September 2026. January 2027 on-peak specifically trades at $181.80/MWh, down modestly from $189.20 a month earlier but still in a different world from the Calendar 2027 average of $90.21/MWh.
That winter premium is a fuel story, not a capacity story. Gas sets the marginal price in ISO New England through the winter, so every dollar of gas basis flows straight into power prices. When delivered gas in New England spikes, power follows — immediately and mechanically.
Natural Gas: The Basis Is the Market
Here is the number that matters most for Massachusetts buyers: January 2027 Algonquin Citygate basis is $17.64/MMBtu over Henry Hub, while upstream Appalachian supply hubs sit at a discount — TCO pool at -$0.34, Dominion South at -$0.61. The December-to-February Algonquin average is $12.89 over Henry Hub, down from $14.16 a month earlier but versus just $0.15 in the summer.
And this is not a onewinter phenomenon:
January 2028 Algonquin basis is still $14.02. The premium is structural, not transient. More than a decade of blocked pipeline projects means the region cannot pull enough Marcellus gas on cold days. During last winter's prolonged January cold snap, Algonquin cash traded near $122/MMBtu — that tail is exactly what these forwards are hedging. A new Enbridge proposal, Project Beacon, would add 300 MMcf/d of firm capacity to the Algonquin system, with service targeted as early as November 2030, and could cut average winter Algonquin Citygate prices by $1.27/MMBtu. Until then, any cold snap risks the familiar basis blowout.
The national backdrop, by contrast, is genuinely comfortable. Storage is forecast to reach roughly 3,985 Bcf at the end of October — about 5% above the five-year average and the highest heading into a winter since 2016. Henry Hub is expected to stay below $3.00/MMBtu until November, and NYMEX Calendar 2027 trades around $3.25. For a Massachusetts buyer, that means hedging NYMEX alone does not hedge the real risk. The risk is basis.
Capacity: Low Prices, and a Market Being Rebuilt
New England's capacity picture is calmer than PJM's, but it is in transition. The 17th Forward Capacity Auction secured 31,370 MW for the 2026/2027 commitment period at $2.59/kW-month — among the lowest prices in the auction's history, and the lowest total cleared capacity on record. The 18th auction, for 2027/2028, secured 31,556 MW at $3.58/kW-month across all zones.
What comes next is a redesign, not another routine auction. FCA 19 was delayed while the market is reworked: in March 2026, FERC accepted the first batch of ISO New England's Capacity Auction Reforms, moving from three year forward auctions to prompt auctions held about a month before delivery, with the first auction under the new framework planned for 2028 and a seasonal auction filing expected at FERC at the end of 2026.
For buyers, the practical effect is that capacity price signals will arrive closer to delivery —less long-dated certainty, more need to watch the reform process.
Fundamentals: Adequate Resources, Fragile Fuel
ISO New England's own assessments frame the winter risk as fuel, not megawatts: the region may have enough power plants, but the question is whether they have enough fuel to get through an extreme stretch. New England relies on imported fuels during constrained winter periods — LNG through the Everett Marine Terminal near Boston, and distillate for dual-fuel units — which ties winter power costs to global LNG and fuel-oil markets as well as to pipeline capacity. Geopolitical tension affecting LNG and distillate supplies raises winter costs for import-dependent New England directly.
Offshore wind is part of the longer-term answer — ISO New England's extreme- weather assessment base case assumes about 1.6 GW of offshore wind in 2027, including 704 MW from Revolution Wind — but the buildout's pace is contested, and it does not solve this winter.
Meanwhile, the weather forecast cuts both ways. Long-range models project one of the mildest Northern Hemisphere winters in recent decades, which could strip remaining winter premiums out of forward curves. But that same forecast increases two-sided volatility risk: if winter warmth materializes, prices fall further; if colder than expected weather arrives,
the repricing upward could be sharp, because the basis tail is so large.
What This Means for Massachusetts Buyers
Hedge basis, not just NYMEX. A NYMEX hedge protects the commodity; it does nothing for a $17.64 Algonquin premium. Winter basis protection — through fixed-basis supply, basis hedges, or delivered-price structures — is where the real exposure lives.
Layer winter coverage early. The mild forecast is an opportunity to secure winter positions while premiums have eased, not a reason to wait. The January 2028 basis at $14.02 shows the market does not expect this problem to disappear next year either.
Confirm winter readiness now. Dual-fuel capability, oil inventories, and curtailment plans matter more in New England than almost anywhere else in the country. With heating oil projected sharply higher this winter, dual-fuel generators have less cushion than usual.
Watch the capacity redesign. The shift to prompt capacity auctions changes how far ahead price signals arrive. Buyers with contracts renewing in 2027 and 2028 should track the seasonal-auction filing expected at FERC by year-end 2026.
PEM Perspective
The Massachusetts story is the mirror image of the PJM story, and that is exactly why zone-specific advice matters. In New Jersey, the opportunity is soft forward power near 12-month lows. In Massachusetts, the opportunity is different: a mild forecast and record storage have eased winter premiums from their peaks, but the structural basis problem means a single cold week can still produce the kind of prices that break an unhedged winter budget.
The disciplined Massachusetts playbook is to buy winter basis protection while the forecast is mild, layer coverage rather than betting on one price, and treat fuel deliverability — not the NYMEX screen — as the number that decides your winter.
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