Connecticut Commercial Electricity: Deregulated since 1998, CT offers full retail choice. Average commercial rate: 14-18¢/kWh (2026)—among the highest nationally. Competitive suppliers can still provide 8-12% savings over utility standard service.
Connecticut Commercial Natural Gas: Gas choice via Eversource (Yankee Gas), CNG, and Southern CT Gas. Algonquin Citygate basis can spike $5-17+/MMBtu in winter due to pipeline constraints. Fixed contracts are critical. Gas Guide →
One of the highest-cost electricity markets in the nation. Full retail choice in Eversource and United Illuminating territories makes switching critical.
Connecticut faces some of the highest natural gas basis premiums in the US during winter. The Algonquin Citygate price hub drives costs for both heating gas and gas-fired power generation.
Commercial gas choice is available in Eversource (formerly Yankee Gas), CNG, and Southern Connecticut Gas territories.
Limited pipeline capacity into New England means gas prices can triple during cold snaps. Suppliers often add "winter reliability" premiums to variable rates—avoid this with a fixed contract.
Read our Gas Procurement Guide →High CT rates mean even small percentages = big savings
CT has some of the highest electricity costs in the US. Even modest percentage savings translate to significant dollar amounts.
The Public Utilities Regulatory Authority (PURA) oversees the competitive market and maintains consumer protections.
CT targets 100% zero-carbon electricity by 2040. Renewable energy contracts may offer long-term price stability.
Our reverse auction process gets multiple ISO-NE suppliers competing for your business.
Get Competitive Quotes →Latest news affecting Connecticut commercial energy buyers
FERC approved ISO-NE's capacity market redesign on March 30, 2026. The 3-year-forward FCM is replaced by a prompt Annual Capacity Auction held ~1 month before delivery. Only commercially operating resources may participate. First implementation 2028/2029. Suppliers avoid fixed-price quotes past June 2028.
ISO-NE real-time LMPs spiked above $195/MWh on March 19, 2026 as loads exceeded forecasts. March DA hub averages swung from $34 to $73/MWh week-to-week. Continued volatility after the most expensive winter in ISO-NE history ($6B).
ISO-NE's DASI has cost New England ratepayers $921M in incremental costs since March 2025 — 6.6× the $140M annual projection. NH Governor Ayotte demands reforms and commissions study on leaving ISO-NE. FERC filing expected summer 2026.
ISO-NE's Day-Ahead Ancillary Services Initiative (DASI) costs have exceeded initial estimates, driving retail rate increases across New England. Municipal aggregation programs cite DASI as the primary driver of March 2026 rate hikes.