Connecticut Multi-Site Cannabis Operator Energy: Eversource vs. UI and the 500 kW LRS Line

Two utilities, one ISO

Connecticut has two investor-owned electric distribution companies with full retail choice: Eversource (CL&P) covering about 149 towns and United Illuminating serving 17 coastal towns [ct-pura-choose-supplier]. Both sit inside ISO New England [energizect-rate-board-business]. Municipal utilities in Groton, Norwich, Wallingford, and other towns do not participate in supplier choice [ct-pura-choose-supplier].

DCP's September 2026 credential count shows 27 cultivation, 13 processing, and 80 retail credentials [ct-credential-count]. A portfolio spanning Hartford (Eversource), New Haven (UI), and a rural grow (Eversource) needs three rate analyses and two Standard Service benchmarks.

The 500 kW portfolio threshold

Demand level	Default supply product	Reset cadence
Under 500 kW monthly	Standard Service	January 1 and July 1 [energizect-rate-board-business]
500 kW and above	Last Resort Service	Monthly [energizect-rate-board-business]

Dispensaries on Rate 30 usually stay under 500 kW [eversource-ct-rates-2026]. Cultivators with 15,000 sq ft minimum canopy often approach or exceed it. A portfolio with both should not assume one supply product across all meters.

Standard Service benchmarks in 2026

For July through December 2026 [energizect-rate-board-business]:

Utility / rate	Standard Service (flat)
Eversource Rate 30	11.229 cents/kWh
Eversource Rate 27/37 TOU peak	13.374 cents/kWh
UI Rate GS	11.9022 cents/kWh
UI Rate GST peak	13.9333 cents/kWh

Source: EnergizeCT Rate Board [energizect-rate-board-business].

Manufacturer classification across sites

Eversource Rates 55/57 serve manufacturers; Rates 56/58 serve non-manufacturers above 350 kW with higher per-kVA transmission demand [eversource-ct-rates-2026]. A portfolio with both a classified manufacturer lab and a cultivation facility may pay different transmission demand at similar kVA peaks. Confirm classification per site before master-contracting supply.

Data standardization

Build a register with: utility, account number, rate class, monthly kWh, monthly peak kW, Standard Service or LRS status, supplier name, contract end date. Connecticut commercial power averaged 19.62 cents per kWh in June 2026 [eia-epm-5-6-a]; portfolio savings come from beating Standard Service supply on each account, not from the statewide average.

Annual electricity reporting

C.G.S. Section 21a-421m requires annual electricity usage reports from all cannabis establishments [ct-reraca-chapter-420h]. Centralize meter data across the portfolio for compliance.

Public Act 25-173 requires at least 25 percent of Standard Service load through dynamic market purchases [ecm-ct-pa-25-173]. Portfolios relying on Standard Service as a stable benchmark should re-evaluate as PURA implements the law [ecm-ct-pa-25-173].

Consolidated billing across Eversource and UI

Connecticut typically uses consolidated billing where the utility invoices delivery and supplier supply on one statement [ct-pura-choose-supplier]. Accounts payable must code two utilities even when one supplier brand serves both [ct-pura-choose-supplier]. UI Rate GS supply benchmarks differ from Eversource Rate 30 by about 0.67 cents per kWh for July through December 2026 [energizect-rate-board-business]. A master contract should list account-specific prices, not one blended portfolio kWh rate [energizect-rate-board-business].

Staggered terms and renewal discipline

Stagger 6-, 12-, and 24-month supply terms only when each renewal still receives competitive bids [energizect-rate-board-business]. Cultivation accounts near 500 kW should use longer fixed terms before crossing into monthly Last Resort Service [energizect-rate-board-business]. Retail accounts under 500 kW should calendar January and July Rate Board updates and re-bid 60 days before each reset [energizect-rate-board-business]. Public Act 25-173 changes Standard Service toward more dynamic procurement; fixed supplier deals hedge that shift for smaller meters [ecm-ct-pa-25-173].

Equity joint venture pipeline

DCP accepts Equity Joint Venture applications while license lotteries are closed [ct-credential-count]. Each approved venture energizes new Eversource or UI meters [ct-credential-count]. Clone supplier enrollment templates and interval data standards before the first JV site goes live [ct-pura-choose-supplier]. Keep credential holder names aligned with utility account names on every enrollment [ct-credential-count].

Illustrative three-site portfolio

Assume an MSO with a Waterbury cultivator on Eversource Rate 56, a Hartford dispensary on Rate 30, and a New Haven retailer on UI Rate GS (all kWh and peaks assumed):

Site	Utility	Annual kWh (assumed)	Standard Service supply benchmark
Waterbury grow	Eversource	2,000,000	11.229 cents/kWh Jul-Dec 2026 if under 500 kW; LRS if above [energizect-rate-board-business]
Hartford store	Eversource	80,000	11.229 cents/kWh [energizect-rate-board-business]
New Haven store	UI	75,000	11.9022 cents/kWh [energizect-rate-board-business]

A one-cent supply reduction on the grow saves 2,000,000 times $0.01 equals $20,000 per year on supply alone (assumed). Retail savings are smaller per site but add up across eighty active credentials statewide [ct-credential-count].

Municipal sites in a mixed portfolio

Groton, Norwich, Wallingford, and other municipal electric customers cannot shop PURA-licensed suppliers [ct-pura-choose-supplier]. A portfolio with five Eversource sites and one Norwich municipal account needs separate budget lines: competitive supply on the IOU meters and bundled municipal rates on the rest [ct-pura-choose-supplier]. Due diligence on new leases should confirm utility territory before license transfer [ct-pura-choose-supplier].

UI coastal retail vs inland cultivation

United Illuminating Standard Service for Rate GS is 11.9022 cents/kWh for July through December 2026 versus 11.229 cents/kWh on Eversource Rate 30 [energizect-rate-board-business]. UI GST peak hours run 10 a.m. to 6 p.m. weekdays; Eversource TOU peak runs noon to 8 p.m. [energizect-rate-board-business]. A portfolio master contract should list account-specific benchmarks, not one blended portfolio price [energizect-rate-board-business].

Processing and retail load shape differences

DCP counts 13 processing credentials and 80 retail credentials alongside 27 cultivation licenses [ct-credential-count]. Extraction labs draw batch peaks; dispensaries draw flat small-commercial load. A single supplier may master-contract both, but capacity pricing and risk tolerance differ [ct-pura-choose-supplier]. Consider separate terms for cultivation Rate 56 accounts and retail Rate 30 or UI GS accounts [eversource-ct-rates-2026].

C-PACE and portfolio capex

Connecticut C-PACE finances efficiency and solar on owner-occupied buildings through a property assessment [ct-green-bank-cpace]. MSOs acquiring real estate should evaluate C-PACE for HVAC and dehumidification before energizing expanded canopy that triggers Rate 56 classification [ct-green-bank-cpace]. Tenant operators should negotiate lease clauses for efficiency upgrades and supplier assignment at renewal [ct-green-bank-cpace].

Connecticut-only portfolio simplicity

Unlike Massachusetts MSOs on Eversource and National Grid, Connecticut portfolios usually split only Eversource and UI [ct-credential-count]. Still maintain separate Rate Board benchmarks per utility [energizect-rate-board-business]. A Hartford grow and New Haven store need two supplier enrollments even with one legal entity [ct-pura-choose-supplier].

Public Act 25-173 portfolio impact

Standard Service procurement changes under Public Act 25-173 affect how sub-500 kW retail accounts reset [ecm-ct-pa-25-173]. Longer fixed supplier contracts hedge that regulatory shift [ecm-ct-pa-25-173]. Cultivation above 500 kW should prioritize Last Resort Service hedging over semiannual Standard Service timing [energizect-rate-board-business].

Staggered terms without losing leverage

Portfolio operators sometimes stagger 6-, 12-, and 24-month supply terms to avoid one cliff date [energizect-rate-board-business]. Staggering is useful only if each renewal still gets competitive bids [energizect-rate-board-business]. Keep cultivation accounts on longer fixed terms when they face monthly Last Resort Service defaults above 500 kW [energizect-rate-board-business].

Credential types in one portfolio

Twenty-seven cultivation credentials include standard cultivators, micro-cultivators, and legacy medical producers [ct-credential-count]. Processing adds thirteen credentials; retail adds eighty [ct-credential-count]. Each energized meter needs its own supplier enrollment even under one parent company [ct-pura-choose-supplier].

Connecticut-only MSO versus Massachusetts

Massachusetts MSOs split Eversource and National Grid with monthly Basic Service defaults on large C and I accounts [ma-dpu-basic-service]. Connecticut MSOs usually split only Eversource and UI with semiannual Standard Service below 500 kW [energizect-rate-board-business]. Cross-state portfolio calendars should not align Connecticut July resets with Massachusetts quarterly Basic Service strips [ma-dpu-basic-service] [energizect-rate-board-business].

Additional procurement and tariff notes

Twenty-seven cultivation, thirteen processing, and eighty retail credentials each may energize separate meters [ct-credential-count]. Corporate templates should standardize PURA supplier contract terms while keeping utility-specific Rate Board benchmarks [energizect-rate-board-business].

Additional load and utility notes

ISO-NE winter spikes affect delivery and supply together [energizect-rate-board-business]. Align cultivation fixed contracts to longer terms; align retail to January Rate Board resets [energizect-rate-board-business].

Additional load and utility notes

See multi-state operator procurement strategy for portfolio calendar examples [ct-pura-choose-supplier].

Treasury routing for consolidated bills

Accounts payable should map Eversource and UI supply line items to contract prices monthly [ct-pura-choose-supplier]. Keep credential holder name aligned with utility account on every enrollment [ct-credential-count]. Stagger retail contract ends to avoid one July Rate Board cliff [energizect-rate-board-business].

Portfolio spreadsheet columns

Corporate procurement should track: account number, utility (Eversource or UI), rate schedule, peak kW or kVA, trailing twelve-month kWh, supply contract end date, Standard Service or LRS benchmark, and Section 21a-421m reporting status [ct-credential-count] [ct-reraca-chapter-420h]. ISO-NE capacity on delivery is independent of supplier [energizect-rate-board-business]. Stagger retail renewals away from a single July Rate Board cliff [energizect-rate-board-business].

MSO Standard Service reset playbook

Mark January 1 and July 1 EnergizeCT Rate Board updates on every sub-500 kW account in the portfolio spreadsheet [energizect-rate-board-business]. Cultivation accounts above 500 kW should maintain Last Resort Service monthly review columns [energizect-rate-board-business]. Equity Joint Venture approvals energize new meters that need supply enrollment at set [ct-credential-count]. ISO-NE capacity on delivery is unchanged by supplier switch [energizect-rate-board-business].

Where to go next

See the switching guide, commercial rates, Eversource Connecticut, United Illuminating, and multi-state operator strategy.