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New Hampshire: Build an auditable result instead of a sales story
Start with EIA: natural gas volume, heat content and energy units. The table below links this decision to the represented gas companies in New Hampshire. It does not establish service or supplier availability for every account.
Define the counterfactual
Retain what the business would otherwise have paid for the same service months and quantities. Identify whether that is an existing contract, an effective utility supply component or another dated written offer. Do not switch baselines after seeing the result.
Bridge model to invoices
Separate quantity changes from comparable price changes, then reconcile fixed charges, retained delivery and timing corrections. Preserve enrollment confirmation and invoices before presenting an actual outcome. A favorable calculator scenario is only a model.
New Hampshire utility application
| Gas service company | Evidence needed for the baseline | Primary reference |
|---|---|---|
| Liberty Utilities / EnergyNorth | Seasonal utility cost-of-gas alternative versus supplier gas, capacity and balancing | Official program / tariff |
| Unitil / Northern Utilities | Seasonal utility cost-of-gas alternative versus supplier gas, capacity and balancing | Official program / tariff |
| Liberty Utilities Keene service | Actual billed therms, customer charge and applicable cost-of-gas component | Official program / tariff |
Liberty Utilities / EnergyNorth: the program detail behind this decision
Gas transportation in New Hampshire follows the gas company’s tariff. Unitil’s electricity towns are not its gas towns, and Liberty’s service-area page flags very small coverage in Derry. A competitive electricity registration or electricity aggregation offer does not establish gas enrollment. Liberty Nh Current Tariff; Unitil Thirdparty.
Apply the evidence to an account file
The case file needs comparable evidence for Seasonal utility cost-of-gas alternative versus supplier gas, capacity and balancing. First establish Northern Utilities or EnergyNorth gas company, class and transport schedule so the proposed baseline is an available alternative for this account.
Worked case: distinguish a model from an observed result
For a hypothetical 10,000-therm account, $0.80 per therm plus $20 monthly models to $8,240. An alternative at $0.76 plus $60 monthly models to $8,320. That is an $80 increase in the defined supply scope, not a saving. This conclusion is still only a scenario until eligibility, accepted enrollment and actual comparable invoices are established. Keep the same quantity and delivery period in both calculations. Do not present these invented inputs as a local client case or publish them as market rates.
Turn the review into a calculation
Compare constant supply rates and fees. Enter documented assumptions in matching energy units. Keep any charge outside both supply offers separate; the result does not establish eligibility or an available quote.
Read the New Hampshire utility guide for the wider service-company distinctions. Convert billed gas units using the bill’s heat-content factor when moving from volume to energy.
Sources and review notes
- EIA: natural gas volume, heat content and energy units
- Liberty Nh Current Tariff
- Unitil Thirdparty
- New Hampshire Department of Energy
Reviewed October 16, 2026. Program information can change. Confirm the effective utility tariff, supplier availability and written offer before proceeding. Examples and planning tools are educational; they are not executable quotes or verified customer results.