Connecticut electric customers who opened a bill in the last year have probably noticed it moving. What they are less likely to know is that the number on that bill is not set by the utility. It is set, after a formal proceeding, by a state agency called PURA, and the proceeding that determines it looks a lot more like litigation than most people expect a utility bill to involve.
What is PURA, and what does a rate case actually decide?
The Public Utilities Regulatory Authority is Connecticut’s utility regulator, and a rate case is the formal process by which a utility asks it for permission to change what it charges. A utility cannot simply raise rates; it has to file an application, justify the increase with evidence of its costs, and defend that evidence through a contested proceeding that includes discovery, testimony, and a final written decision. The Office of Consumer Counsel and the Attorney General’s office both participate as a matter of course, and outside groups can seek to intervene as parties in their own right.
What does a live example look like right now?
Eversource filed notice in May 2026 of its intent to seek a rate increase for Connecticut electric customers, followed by a formal application seeking roughly $503 million, an increase the company says would raise bills by about 11 percent overall and closer to 13 percent for residential customers. The company points to previously incurred infrastructure costs and rising expenses for grid maintenance, tree clearing, and storm response as the basis for the request.
That case is still pending, but a related one already shows how closely PURA tests the evidence before any number becomes a rate. In a separate storm-cost recovery proceeding decided this summer, Eversource sought $1.4 billion for catastrophic storm costs incurred between 2018 and 2023. PURA approved about $667.8 million of it, roughly half, after disallowing hundreds of millions of dollars in retrospective carrying charges and crediting ratepayers for amounts already collected. That is a different docket than the pending general rate case, but it is the same regulator applying the same scrutiny, and it is worth knowing before assuming the $503 million figure comes out the other side unchanged.
Who gets a seat at the table besides the utility and the regulator?
Anyone who can show a genuine interest in the outcome and successfully petitions to intervene, which is how a case that starts as a filing between a utility and PURA ends up with outside advocates in the room. In the pending rate case, Acadia Center, a regional clean energy nonprofit, filed for intervenor status specifically to contest the request. Organizations like Conservation Law Foundation work this same terrain as a matter of ongoing practice, not case by case: utility ratemaking, distribution planning, and the siting of solar and storage projects are core docket work for New England energy attorneys, argued before PURA, ISO New England, and the Federal Energy Regulatory Commission depending on which layer of the grid is at issue. A rate case is where that kind of practice becomes visible to anyone paying attention to their electric bill, even though most of the work behind it happens in dockets nobody outside the field reads.
Why should a non-lawyer care how this process works?
Because the alternative belief, that a private company simply decides what your electric bill will be, is wrong in a way that matters. The number on the bill is the output of a regulatory process with evidentiary standards, formal parties, and outcomes that can and do differ substantially from what the utility originally asked for, as the storm-cost docket already shows. Understanding that the process exists does not make the bill smaller. It does mean the fight over what you pay is happening somewhere you are allowed to watch, and in some cases to join.
