New Hampshire Utilities Raised Rates in August 2026
New Hampshire businesses must prepare for higher utility costs as infrastructure spending and market adjustments drive up monthly bills.
Updated on Sept. 18, 2026 in Utilities
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Eversource, Unitil, and Liberty implemented higher electricity supply rates in August 2026 to recover market costs. These adjustments coincide with rising delivery charges as utilities fund extensive infrastructure projects across the state.
Why it matters
Higher utility rates shift operating expenses upward, impacting margins for businesses that rely on stable energy costs. These increases reflect both the recovery of underestimated market prices and the capital-intensive nature of maintaining and expanding the grid.
Unitil's average monthly distribution charges increased by nearly $10 between 2022 and 2026, contributing to rising operational costs. Meanwhile, Eversource is currently pursuing a $400 million transmission project, part of a broader fiscal environment where $1.5 billion has been sought for New England ratepayer returns.
The players
Eversource
A major investor-owned utility providing electricity and gas services across a multi-state region.
Unitil
A public utility holding company that manages electric and natural gas distribution in New England.
Liberty
An investor-owned utility subsidiary that manages regional energy infrastructure and service delivery.
Public Utilities Commission
The New Hampshire regulatory body responsible for overseeing utility operations and approving rate adjustments.
Kelly Ayotte
The Governor of New Hampshire who serves as the state's chief executive and utility policy advocate.
The details
Utilities in New Hampshire set supply rates on a biannual cycle in February and August to match energy market fluctuations. While investor-owned utilities cannot profit from these supply rates, they regularly submit rate cases to the Public Utilities Commission to increase delivery charges, which fund essential infrastructure like substations and transmission lines. Eversource has also adopted a new rate-making process that utilizes pre-approved formulas to accelerate these infrastructure recoveries.
Timeline
Distribution charges at Unitil increased by $10 monthly from 2022 to 2026.
Liberty implemented temporary rate changes in October 2023.
Governor Kelly Ayotte proposed a $1.5 billion ratepayer return in July 2026.
New electricity supply rates were implemented in August 2026.
Market Landscape
These rate hikes follow the implementation of new formula-based rate-making processes approved by the Public Utilities Commission to expedite infrastructure funding. The move highlights a broader regional trend where utilities are increasingly passing capital expenditure costs to businesses amid rising infrastructure demands.
Operators should monitor future filings with the Public Utilities Commission to anticipate upcoming adjustments to delivery charges. Reviewing current power purchase agreements and assessing the feasibility of local energy efficiency investments may help mitigate the impact of rising monthly utility bills.
The takeaway
Rising utility rates require owners to treat energy expenditures as a variable cost that requires quarterly budget adjustments. Business leaders should track upcoming rate cases to forecast cash flow changes and identify potential gaps between current market prices and utility-charged rates.
Further reading
For more information on state infrastructure, visit the Utilities section.
Source note: This article includes information reported by New Hampshire Public Radio.
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