COMMERCIAL NATURAL GAS · BETTER-INFORMED DECISIONSSupply, terms & renewal planning
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Business gas guidance

Compare commercial gas suppliers beyond the headline rate in Connecticut

A comparable bid contains accepted accounts, delivery months, energy units, price formula, fixed charges and exclusions. The utility-specific comparison scope below prevents a commodity-only offer from being mistaken for complete delivered service.

Reviewed October 16, 2026

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

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Connecticut: Make the bid specification match the utility

Start with EIA: natural gas customer choice and eligibility. The table below links this decision to the represented gas companies in Connecticut. It does not establish service or supplier availability for every account.

Require an inclusion schedule

Ask bidders to mark commodity, capacity, balancing, taxes, utility transportation and account fees as included, excluded or variable. An unanswered field is an unresolved cost, not zero.

Compare risk as well as the modeled total

Read the volume measurement period, assignment process, early-exit calculation and renewal mechanism. Request a written calculation for a material overrun or closure rather than relying on a product name such as fixed or flexible.

Connecticut utility application

Gas service companyComparable price and fee scopePrimary 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

Give bidders the same specification for Marketer supply, utility transportation and any metering or data charges. Ask who is responsible for PURA approval, utility-active marketer and accepted start date. Do not rank an incomplete answer as the cheapest complete offer.

Worked check: fees can reverse the lower rate

Assume hypothetical annual consumption of 10,000 therms. A costs $0.80 per therm plus $20 monthly: $8,240. B costs $0.76 plus $60 monthly: $8,320. B’s commodity price is lower, but its modeled supply total is $80 higher. Equal cost occurs at 12,000 annual therms under these constant-rate assumptions. These are invented inputs, not available offers, local tariffs or program thresholds. Delivery, tax, exit costs and any excluded components still require a separate review.

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 →