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Worked commercial gas cost examples in Connecticut

No verified client saving or available local price is claimed here. A defensible case separates eligibility, comparable contracted costs, changes in usage and implementation evidence.

Reviewed October 16, 2026

By Commercial Gas Rates editorial team · Educational guidance; verify account-level terms.

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Connecticut: 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 Connecticut. 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.

Connecticut utility application

Gas service companyEvidence needed for the baselinePrimary reference
Southern Connecticut GasMarketer supply, utility transportation and any metering or data chargesOfficial program / tariff
Yankee Gas / EversourceMarketer supply, utility transportation and any metering or data chargesOfficial program / tariff
Connecticut Natural GasMarketer supply, utility transportation and any metering or data chargesOfficial program / tariff
Norwich Public UtilitiesMunicipal gas service and supply componentsOfficial program / tariff

Southern Connecticut Gas: the program detail behind this decision

PURA describes firm transportation for commercial and industrial customers. The state’s approved gas-marketer information and the actual distribution company’s active enrollment requirements answer different questions. The town roster identifies the gas distributor separately from interstate transmission pipelines. Program Connecticut.

Apply the evidence to an account file

The case file needs comparable evidence for Marketer supply, utility transportation and any metering or data charges. First establish Commercial or industrial class and the distribution company’s firm-transportation requirements 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 Connecticut 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

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.

A practical next step

Put the full contract in view.

Ask about your utility, supply terms or renewal. Keep account numbers and documents out of the initial inquiry.

Request a gas review →