Eversource's 18% Connecticut Rate Hike Request: What It Means Before July 2027

On July 14, 2026, Eversource Energy filed a full rate case with Connecticut's Public Utilities Regulatory Authority — its first electric distribution rate review since 2017. The company is asking for as much as $727 million in additional annual revenue, which it says translates to roughly an 18% increase on the average residential customer's monthly bill. Strip out the deferred storm costs baked into that number, and the underlying distribution rate request is closer to $451 million, or about 11% — with Eversource's own filings putting the impact on a typical residential customer using 700 kWh a month at roughly 13%.

Connecticut Attorney General William Tong didn't hold back. He called the filing "another tone-deaf insult to Connecticut families facing surging energy costs in the midst of a sweltering summer," and pledged to "scrutinize every padded profit, every bonus and every expense to fight for every penny of savings for Connecticut families."

My name is CJ Smith. I own Solar 4 Heroes. We install solar for homeowners across Connecticut and up and down the East Coast. I've written before about rate hikes hitting New Jersey and Pennsylvania customers — this time, it's Connecticut's turn, and I think it deserves the same plain-English breakdown: what Eversource actually filed, what happens next, and what a homeowner should do with that information right now, not in 2027 when it's too late to matter.

---

What Eversource Filed on July 14

Eversource first signaled this was coming back on May 20, 2026, with a letter of intent to PURA describing an operating revenue deficiency of roughly $503 million, before storm costs. The full application in July fleshed that out into two possible numbers, depending on how regulators treat storm-related expenses from 2018 through 2025.

Figures reflect Eversource's own rate case filing and reporting on the July 14, 2026 application; the approved amount, if any, is determined by PURA's review.

This is a distribution rate case — it covers the portion of your bill that pays for poles, wires, substations, and grid maintenance, not the supply/generation portion that already moves up and down with wholesale energy markets every six months. That distinction matters, because 2026 has already been a volatile year for Eversource supply rates on their own: the January 1 reset added roughly $20 a month to a typical 700 kWh bill, then the May 1 and July 1 resets brought rates back down by a combined $30-plus a month. Homeowners have been on a rate rollercoaster all year without this distribution case even factoring in yet — and this filing is a separate, additional cost layered on top of whatever supply rates do next.

---

Why "First Rate Case Since 2017" Is the Detail Worth Sitting With

Nine years is a long time for a rate case to go unfiled, and Eversource's argument is straightforward: distribution infrastructure costs — poles, transformers, tree-trimming programs, storm hardening — have risen substantially since the company's rates were last reset, and it says it has been absorbing that gap rather than passing it through. That's a defensible thing for a utility to say. It's also true that when nine years of accumulated cost increases get requested all at once, the resulting percentage looks a lot larger than if it had been phased in gradually the way some neighboring states do.

I don't think Eversource is lying about its costs. I do think it's fair for homeowners to ask why a nine-year gap between rate cases produces an 18% ask rather than a series of smaller, easier-to-absorb increases along the way — and that's precisely the kind of scrutiny Attorney General Tong's office and the Office of Consumer Counsel exist to apply during PURA's review.

---

The Storm-Cost Fight That Already Happened — and What It Signals

Here's a piece of recent, directly relevant context: this isn't the first storm-cost fight Eversource has had with Connecticut regulators this year. In a separate, earlier docket covering deferred storm restoration costs from 2018 through 2023, PURA issued a final decision on July 29, 2026 that cut more than $500 million from what Eversource had originally sought to recover — landing on a figure in the neighborhood of $860 million rather than the roughly $1.3 billion the company had asked for. Regulators rejected Eversource's request to collect interest on those costs before their appropriateness had even been reviewed, and trimmed spending they found questionable, including combining smaller storm events into larger ones and chartering a private plane for a storm-response crew in 2023.

I raise this not to pile on Eversource, but because it tells you something useful heading into the new rate case: PURA has shown, within the last several weeks, that it's willing to cut a nine-figure sum from a utility's cost-recovery request when it finds the underlying costs don't hold up. That's a meaningfully different posture than a rubber stamp, and it's worth knowing as this new, larger case moves through the same review process.

---

"Under Review" Isn't the Same as "Not Coming"

I want to be direct about what's real right now and what isn't. Nothing about your Eversource bill changes today because of this filing. PURA's 350-day statutory investigation means intervenors — the Attorney General's office, the Office of Consumer Counsel, and others — will spend the next several months picking apart Eversource's cost justifications line by line, the same way they just did in the storm-cost docket. Historically, that process trims the number down. It rarely zeroes it out.

Here's the honest range I'd plan around: somewhere between Eversource's full $727 million ask (18%) and a lower, negotiated figure closer to the $451 million, 11% baseline — landing around July 1, 2027, assuming no further delay in PURA's timeline.

---

Where Solar Fits Into a Rate Case That Hasn't Been Decided Yet

I get asked a version of this question every time one of these filings makes news: "If it's not even decided yet, why act now?" Here's my honest answer, the same one I'd give a friend.

A solar system paired with a fixed-payment loan locks in your monthly energy cost on the day it's interconnected — not on the day PURA issues a final decision. Installation typically runs 60–90 days from signed contract to permission to operate. A Connecticut homeowner who starts that process this fall could be generating their own electricity well before next summer, let alone before any rate change PURA might approve for July 2027.

And under Connecticut's solar compensation program, when the retail rate your utility charges goes up, the value of the electricity your panels produce goes up right along with it. That's the opposite of what happens to a homeowner who stays fully dependent on the grid through this rate case and whatever the next one brings.

Connecticut's Solar Incentive Stack in 2026

Connecticut replaced traditional net metering with the Residential Renewable Energy Solutions (RRES) program, administered jointly by Eversource and United Illuminating. Homeowners choose one of two tariffs at enrollment, locked in for 20 years:

RRES tariff rates and on-bill charges are set annually by Eversource and United Illuminating; ask us for the exact figures in effect for your enrollment date.

The federal 30% tax credit going away stings — I won't pretend otherwise. But between the RRES program's retail-rate crediting, the sales and property tax exemptions, and a fixed-payment loan structure, the financial case for Connecticut solar doesn't depend on this rate case resolving in homeowners' favor. It works whether Eversource gets 18%, 11%, or something PURA negotiates down further.

---

Frequently Asked Questions

Did Eversource raise Connecticut electric rates in 2026?

Not through this filing — not yet. Eversource filed a rate case with PURA on July 14, 2026 requesting up to $727 million in additional annual revenue, which the company says would raise the average residential bill by about 18%. PURA's review is expected to take until mid-2027 before any new distribution rates take effect.

How much would my Eversource bill go up if this rate case is approved in full?

As filed, Eversource's request would raise residential bills by roughly 18% if storm costs are included, or about 11–13% if they're excluded and handled separately. The proposed effective date is July 1, 2027. PURA's review historically results in a lower approved figure than the initial request, based on how the company's prior storm-cost case was handled.

Is this the same as Eversource's supply rate changes earlier in 2026?

No. This filing covers distribution rates — the delivery portion of your bill that funds poles, wires, and grid infrastructure. Supply rates, which reset every six months based on wholesale energy costs, are a separate line item and already moved up in January 2026 and back down in May and July 2026, independent of this rate case.

What happened with Eversource's storm-cost recovery case?

In a separate, earlier docket covering 2018–2023 storm restoration costs, PURA issued a final decision on July 29, 2026 that cut more than $500 million from Eversource's original request, approving roughly $860 million to be recovered through long-term, low-interest securitized bonds rather than a shorter payback period. It's a useful signal for how PURA may scrutinize the new, larger rate case.

Does going solar in Connecticut still make sense without the federal tax credit?

Yes. Connecticut's RRES program credits your excess solar production at the full retail rate or a fixed export rate, depending on the tariff you choose, and that value rises if Eversource's rate case is approved. Add the state's sales and property tax exemptions and a $0-down loan structure, and the math still works without the expired federal credit.

Does Solar 4 Heroes install solar in Connecticut?

Yes — we serve homeowners throughout Connecticut in addition to our New Jersey, Pennsylvania, and broader East Coast customer base. If you're an Eversource or United Illuminating customer wondering what this filing means for your specific home, reach out and we'll walk through real numbers, not projections tied to a rate case that hasn't been decided.

---

The Honest Takeaway

Eversource hasn't filed a distribution rate case in nine years, and when nine years of cost increases get requested at once, the number is going to be large no matter how you slice it. Attorney General Tong is right to call for scrutiny, and PURA's recent handling of the utility's storm-cost request shows that scrutiny has real teeth — regulators cut more than $500 million from that ask just five weeks before this larger filing landed.

But "under review" describes a process, not a guarantee. Whatever PURA approves, it approves on its own multi-month timeline, and it takes effect on the utility's terms, not yours. A solar system with a fixed loan payment doesn't wait on that outcome. It locks in your cost the day it's turned on, and its value only grows if Eversource's rate case lands anywhere close to what the company filed for.

If you're a Connecticut homeowner and this filing has you thinking about your options, I'm happy to walk through the real numbers for your home — no inflated savings claims, no pressure, just an honest comparison between what you're paying now and what a fixed solar payment would look like instead.

Solar made easy.

📞 Call or text us directly
💻 Get a free quote at Solar4Heroes.com

---

Solar 4 Heroes serves homeowners across CT, DE, FL, MA, MD, NH, NJ, NY, PA, RI, and VA. Call us at (856) 308-5144 or reach out at cj@solar4heroes.com.