Algonquin Citygate natural gas averaged 43 cents/MMBtu below Henry Hub from April through July 2026, the second-largest discount for that four-month period in records going back to 1999, according to Natural Gas Intelligence data.

The spread marks a sharp break from the hub's traditional winter profile, when Algonquin Citygate typically trades at a premium to the national benchmark as New England heating demand peaks. This spring and summer, low-cost supply from two directions collided with falling regional consumption to keep the New England hub depressed.

Where is the cheap gas coming from?

Appalachia supplied the first lever. The region accounted for 31% of U.S. marketed natural gas production in 2025, more than any other region, and its pipeline connections give New England direct access to that supply. From April through July 2026, the Appalachia Regional average hub price traded 77 cents/MMBtu below Henry Hub — the second-widest discount on record — pulling Algonquin down with it.

Canada supplied the second. Monthly net flows of Canadian gas into New England averaged a record 0.4 Bcf/d from April through July, S&P Global Energy data show, more than 2.5 times the volume moved during the same period in 2025.

Is demand softening too?

Consumption fell on both the heating and power sides. Total New England natural gas use from April through July 2026 ran 5% below the same period in 2025, according to S&P Global Energy.

Power burn — typically one of the region's largest gas demands — declined as renewables expanded:

• Gas-fired generation fell 1.1 BkWh, or 6%, versus April–July 2025
• Wind generation rose 0.7 BkWh, up 59%
• Utility-scale solar generation rose 0.2 BkWh, up 29%

The EIA's Hourly Electricity Grid Monitor supplied the generation figures. The agency notes the seasonal mechanics: home heating demand fades in spring, solar output climbs, and Algonquin slips into its habitual shoulder-season discount — only deeper this year.

What changes come winter?

The discount is a supply-and-weather story, not a structural one. New England's pipeline constraint has not disappeared; it simply does not bind when heating load is absent and imports are flowing at record rates. The discount's persistence into shoulder-season trading reflects how much incremental Appalachian and Canadian molecules are now reaching the region.

The watch item is the winter premium. Algonquin has historically flipped back above Henry Hub once heating demand returns, and the size of that swing will test whether record Canadian import capacity and Appalachian takeaway can temper the region's cold-weather spikes — or whether the 2026 summer discount proves an outlier in the NGI series that dates to 1999.