Eversource CT $727M Rate Increase Filing
Eversource filed with PURA for a $727 million annual rate increase in 2026. Attorney General Tong said average residential bills could rise 18 percent if approved. Excluding storm cost securitization, the request is about $451 million or 11 percent. Connecticut cultivators can shop supply but not delivery.
By Jason Taken, Founder, Jaken Energy
Updated September 12, 2026What Eversource filed in 2026
Eversource filed with the Connecticut PURA seeking a $727 million annual rate increase [ct-ag-eversource-2026]. Attorney General William Tong called the filing a tone-deaf insult to families facing surging energy costs [ct-ag-eversource-2026].
If approved as filed, Tong said average residential bills could rise about 18 percent [ct-ag-eversource-2026].
The filing includes storm-related costs from 2018–2023 that PURA preliminarily authorized at $933 million in a draft decision [ct-ag-eversource-2026]. PURA sided with Tong and other parties in rejecting over $300 million in interest Eversource sought [ct-ag-eversource-2026]. Approved storm costs will be securitized [ct-ag-eversource-2026].
Removing storm securitization from the request, Tong said Eversource still seeks about $451 million, equal to roughly an 11 percent residential increase [ct-ag-eversource-2026].
What cultivators can and cannot shop
Connecticut allows competitive electric supply connecticut switching. Delivery remains Eversource's regulated domain on Eversource Connecticut.
| Bill section | Shoppable? | 2026 context |
|---|---|---|
| Standard service / supplier energy | Yes | May PURA credits [pura-may-2026-pr] |
| Delivery + demand | No | $727M filing [ct-ag-eversource-2026] |
| Storm securitization | No | PURA draft $933M [ct-ag-eversource-2026] |
Switching suppliers does not cap kW demand when you expand canopy. Read demand charges explained alongside supply quotes.
PURA's May 1, 2026 adjustments created public benefits credits of about 4.3¢/kWh for Eversource [pura-may-2026-pr]. See our PURA May adjustment post. Delivery filings and supply credits can coexist on one bill without netting to zero.
Worked example: delivery vs supply exposure
Inputs we chose for a 130,000 kWh/month facility with 450 kW billed demand (illustrative).
| Bucket | Illustrative rate | Monthly |
|---|---|---|
| Supply (standard service) | 10.5¢/kWh | $13,650 |
| Public benefits credit [pura-may-2026-pr] | −4.3¢/kWh on all kWh | −$5,590 |
| Delivery energy | 4.0¢/kWh | $5,200 |
| Delivery demand | $14/kW × 450 kW | $6,300 |
| Total illustrative | $19,560 |
If PURA later grants 11% delivery increase on the delivery subtotal only (hypothetical application of Tong's non-storm figure) [ct-ag-eversource-2026]:
- Delivery subtotal $11,500 × 11% ≈ +$1,265/month
- Supply credit unchanged unless PURA adjusts supply components separately
This shows why delivery cases matter even when supply credits help.
Storm costs and future filings
Tong noted 2024 and 2025 storm costs will be considered in the latest case [ct-ag-eversource-2026]. Cultivators with backup generation should still model outage duration separately from rate politics.
Tong's office reported blocking upward of $700 million in requested hikes across Eversource and UI proceedings since he took office [ct-ag-eversource-2026]. Intervention continues; final numbers will differ from the filed request.
Practical steps
- Split historical bills into supply vs delivery vs demand using understanding your commercial utility bill.
- Compare retail supply only after May 2026 PURA credits [pura-may-2026-pr].
- Stress-test demand growth against delivery rate outcomes from the $727M proceeding [ct-ag-eversource-2026].
- Track PURA dockets; confirm facts with your advisor before budgeting multi-year expansions.
Takeaway
Eversource's $727 million filing seeks delivery and storm recovery revenue [ct-ag-eversource-2026]. Supply shopping remains available, but it does not vote on delivery hikes.
Connecticut operators should treat PURA's May public benefits credits and Eversource's delivery case as separate levers on the same bill, then procure supply and manage demand accordingly.
Storm securitization mechanics
PURA's draft on $933 million in 2018–2023 storm costs with interest rejected affects how costs amortize on bills [ct-ag-eversource-2026]. Securitization spreads principal over long horizons; cultivators feel small monthly increments for years.
11% vs 18% framing
Attorney General Tong distinguished 18% residential if the full $727 million request passes versus 11% excluding storm securitization pieces [ct-ag-eversource-2026]. C&I class percentages differ; read PURA testimony for demand charge changes, not residential press quotes alone.
United Illuminating parallel risk
Tong's track record mentions UI as well as Eversource in blocking $700 million+ in requested hikes [ct-ag-eversource-2026]. UI-served cultivators should mirror delivery vigilance even if this filing headline says Eversource.
Supply shopping during long delivery cases
Retail fixed supply signed during a multi-year delivery case still leaves delivery exposed [ct-ag-eversource-2026]. Negotiate contract assignment clauses if you sell a licensed facility mid-case.
Tong litigation track record
Attorney General Tong reported blocking $700M+ in utility asks since taking office [ct-ag-eversource-2026]. Settlement dynamics may reduce $727M before final orders; cultivators should scenario-plan approved amounts, not filed requests alone.
Office of Consumer Counsel alignment
PURA's draft on storm costs aligned with the Office of the Attorney General, Office of Consumer Counsel, Office of Education Outreach and Enforcement, and DEEP in rejecting $300M+ in interest [ct-ag-eversource-2026]. Broad coalition opposition signals delivery filings face scrutiny, but approved storm principal still flows into rates through securitization [ct-ag-eversource-2026]. Supply shoppers should not treat intervention headlines as delivery rate freezes.
Storm year expansion
Tong noted 2024 and 2025 storm costs will enter the latest case after 2018–2023 securitization [ct-ag-eversource-2026]. Multi-year storm amortization can dominate delivery even when May PURA credits help supply [ct-ag-eversource-2026].
$451M non-storm slice
Removing storm securitization still leaves about $451 million or ~11% residential impact in Tong's framing [ct-ag-eversource-2026]. C&I classes need PURA class impact tables, not residential 11% shortcuts [ct-ag-eversource-2026].
Securitization vs cash timing
Securitized storm costs spread cash collection over long horizons [ct-ag-eversource-2026]. DCF models should use rider schedules, not one-time $727M headlines [ct-ag-eversource-2026].
Pair with May PURA credits
Reconcile May public benefits credits against delivery filings on one spreadsheet [ct-ag-eversource-2026]. If PURA credits shrink in a future tranche, your net effective rate moves even without a new delivery order.
Large general service demand under delivery filings
Connecticut cultivation and extraction sites often land on Eversource GS schedules with demand-metered delivery. Attorney General Tong's 18% residential and 11% non-storm figures illustrate politics, not C&I demand math [ct-ag-eversource-2026]. A 450 kW billed peak at double-digit $/kW delivery rates can add $5,000 to $8,000 per month independent of supply [ct-ag-eversource-2026].
When PURA grants even a partial delivery increase, kW charges move faster than ¢/kWh supply for canopy-heavy loads. Model demand growth from new rooms against Case delivery dockets, not supply quotes alone. See demand charges explained and Connecticut extraction facility energy.
Storm securitization amortization on long horizons
PURA's draft authorized $933 million in 2018–2023 storm costs for securitization while rejecting $300 million+ in interest Tong opposed [ct-ag-eversource-2026]. Securitized principal spreads over long horizons as small monthly riders rather than one line-item shock [ct-ag-eversource-2026].
Cultivators signing 36-month retail supply contracts still inherit storm amortization on the delivery side for years. DCF models should use rider schedules from PURA orders, not headline $727 million filing requests alone [ct-ag-eversource-2026].
United Illuminating parallel proceedings
Tong noted blocking $700 million+ in combined Eversource and UI requests since taking office [ct-ag-eversource-2026]. UI-served Fairfield County grows should mirror delivery vigilance even when headlines name Eversource. May 4.9 cent public benefits credits on UI differ from 4.3 cents on Eversource [pura-may-2026-pr].
Track both utilities under Connecticut commercial electricity rates and Connecticut switching rules when optimizing supply while delivery cases proceed.
Office of Consumer Counsel coalition on storm interest
PURA's draft on storm costs aligned with the Attorney General, Office of Consumer Counsel, Office of Education Outreach and Enforcement, and DEEP in rejecting $300 million+ in interest [ct-ag-eversource-2026]. Approved storm principal still flows into rates through securitization [ct-ag-eversource-2026]. Supply shoppers should not treat intervention headlines as delivery rate freezes.
2024 and 2025 storm years entering the case
Tong noted 2024 and 2025 storm costs will enter the latest case after 2018–2023 securitization [ct-ag-eversource-2026]. Multi-year storm amortization can dominate delivery even when May PURA credits help supply [pura-may-2026-pr] [ct-ag-eversource-2026].
Contract assignment when selling a licensed facility
Retail fixed supply signed during a multi-year delivery case leaves delivery exposed [ct-ag-eversource-2026]. Negotiate contract assignment clauses if you sell a Connecticut licensed facility mid-case. Confirm with counsel; this is not legal advice [ct-ag-eversource-2026].
Tong $700 million blocked history across Eversource and UI
Attorney General Tong reported blocking upward of $700 million in requested hikes across Eversource and UI proceedings since taking office [ct-ag-eversource-2026]. Final approved amounts may still exceed zero; cultivators should scenario-plan granted delivery increases, not filed requests alone [ct-ag-eversource-2026].
Removing storm securitization: $451 million slice
Removing storm securitization still leaves about $451 million or roughly 11 percent residential impact in Tong's framing [ct-ag-eversource-2026]. C&I classes need PURA class impact tables, not residential 11 percent shortcuts [ct-ag-eversource-2026]. Download class-specific testimony when posted [ct-ag-eversource-2026] [pura-may-2026-pr].
Practical steps while PURA reviews delivery
- Split historical bills into supply vs delivery vs demand using understanding your commercial utility bill [ct-ag-eversource-2026]
- Compare retail supply only after May 2026 PURA credits [pura-may-2026-pr]
- Stress-test demand growth against delivery outcomes from the $727 million proceeding [ct-ag-eversource-2026]
- Track PURA dockets; confirm facts with your advisor before multi-year expansions [ct-ag-eversource-2026]
Supply shopping remains available, but it does not vote on delivery hikes [ct-ag-eversource-2026]. Treat May credits and delivery filings as separate levers on the same bill [pura-may-2026-pr].
Connecticut operators should procure supply and manage demand accordingly while PURA reviews storm securitization and delivery revenue requests [ct-ag-eversource-2026] [pura-may-2026-pr]. Confirm final numbers with your advisor before budgeting multi-year canopy expansions [ct-ag-eversource-2026].
Frequently asked questions
How much is Eversource Connecticut seeking in its 2026 filing?
Eversource filed for a $727 million annual rate increase with PURA in 2026. Attorney General Tong stated that if approved, average residential bills could rise about 18 percent.
What is the increase excluding storm costs?
Tong's statement said removing 2018-2025 storm cost securitization leaves about $451 million, or roughly an 11 percent residential increase.
Can cannabis businesses avoid this by switching suppliers?
No for delivery. Competitive supply only changes the generation portion. Distribution, demand, and storm-related delivery riders stay with Eversource.
Did PURA already approve storm costs?
PURA preliminarily authorized about $933 million in storm costs from 2018-2023 in a draft decision, while rejecting over $300 million in interest Tong opposed.
How does this relate to May 2026 public benefits credits?
PURA's May 1 adjustments included supply-side public benefits credits. The $727 million filing addresses delivery revenue and storm securitization separately.
Related reading
- Eversource Connecticut for Cannabis Facilities: Rate 30 Through 58 and Manufacturer Classification
Eversource Connecticut cannabis billing: CL&P territory, Rate 30/56/58 demand charges, Standard Service at 11.229 cents/kWh, and non-manufacturer kVA classes.
- How to Switch Electricity Suppliers in Connecticut: A Step-by-Step Guide for Cannabis Businesses
Step-by-step Connecticut supplier switching for cannabis on Eversource and UI: Standard Service benchmarks, PURA enrollment, and the 500 kW LRS threshold.
- Understanding Your Commercial Utility Bill (Line-Item Breakdown)
Supply vs delivery, customer charge, distribution demand, transmission, capacity, riders, power factor, and taxes, with an annotated sample bill for a grow.
- PURA May 2026 Rate Adjustment: Connecticut Public Benefits Credit
PURA's May 1, 2026 Connecticut electric adjustments cut public benefits charges 4.3–4.9¢/kWh. How much Eversource and UI commercial bills actually moved.
- Eversource and National Grid Basic Service August 2026 Increase
Eversource basic service hit 17.32¢/kWh and National Grid 17.19¢/kWh Aug 1, 2026. MA cultivators should compare supply before riding default.
- FERC Approved ISO-NE Prompt Capacity Market: What Suppliers Will Price Differently
FERC accepted ISO-NE prompt capacity reforms March 2026. First auction in 2028 changes how suppliers price FCM.
- ISO-NE's Coldest Winter in 20 Years: LMP and Contract Lessons for Grows
ISO-NE's coldest winter in 20 years drove $6B in energy market costs. Contract lessons for Massachusetts grows.
- Massachusetts 36 W/sq ft Lighting Cap and the 100% Renewable Waiver
Massachusetts 36 W/sq ft lighting cap and the 80% renewable waiver via the energy compliance letter explained.
- Massachusetts Cannabis Law April 2026: Cultivation Licensing Freeze and Energy
Massachusetts cultivation licensing freeze from June 16, 2026 under April cannabis law. Energy planning for expansions.
Jason Taken founded Jaken Energy, the commercial energy procurement practice behind this site. He works with licensed cannabis operators in deregulated electricity markets to lower supply rates, manage demand charges, and evaluate efficiency upgrades.
Sources
Inline citations in this article, such as [ct-ag-eversource-2026], refer to the entries below. Links open the primary source in a new tab.
- [ct-ag-eversource-2026]Attorney General Tong Statement Regarding Eversource Rate Hike Filing — Connecticut Office of the Attorney General. Accessed 2026-09-12.
- [pura-may-2026-pr]PURA announces electric rate adjustments to take effect May 1 — Connecticut Public Utilities Regulatory Authority. Accessed 2026-09-12.