Connecticut Cannabis Dispensary Energy: Standard Service on Rate 30 and Coastal UI Territory

Retail load and territory split

Connecticut lists 36 cannabis retailers, 43 medical cannabis hybrid retailers, and one medical dispensary facility in active statuses [ct-credential-count]. Adult-use retail sales began January 10, 2023 [ct-credential-count]. Eversource serves about 149 of 169 towns including Hartford, Stamford, Waterbury, and Norwalk [eversource-ct-rates-2026]. United Illuminating serves 17 coastal towns around New Haven and Bridgeport [ui-pricing].

A dispensary on Eversource Rate 30 and a competitor on UI Rate GS face different delivery tariffs and slightly different Standard Service benchmarks [energizect-rate-board-business]. Multi-store operators should not assume one quote covers both utilities.

What a dispensary draws

Dispensary retail load includes sales floor lighting, HVAC for customer comfort, security and vault systems, refrigeration for edibles, and point-of-sale equipment. Connecticut averages 607 cooling degree days and 5,849 heating degree days [noaa-cag-connecticut]. Retail peaks are usually HVAC or kitchen events, not horticultural lighting blocks.

Rate 30 bills distribution demand at $14.22 per kW over 2 kW, plus ESI, transmission, and CTA components [eversource-ct-rates-2026]. Many stores stay below the demand threshold that dominates a grower's bill, so supply cents per kWh is the main savings lever.

Standard Service benchmark

Customers under 500 kW monthly demand receive Standard Service if they do not choose a supplier [energizect-rate-board-business]. The generation rate resets every January 1 and July 1 and is posted on the EnergizeCT Rate Board [energizect-rate-board-business].

Utility	Rate	Standard Service Jul-Dec 2026
Eversource	Rate 30 / 35	11.229 cents/kWh [energizect-rate-board-business]
United Illuminating	Rate GS	11.9022 cents/kWh [energizect-rate-board-business]

Time-of-day Standard Service options exist on Eversource Rate 27 and 37 (13.374 peak / 10.374 off-peak) and UI Rate GST (13.9333 peak / 10.9333 off-peak) [energizect-rate-board-business]. A store with low daytime load might beat flat Standard Service on a TOU schedule; verify on interval data.

Public Act 25-173 is changing Standard Service procurement toward more dynamic purchases [ecm-ct-pa-25-173]. Fixed supplier contracts hedge that shift for sub-500 kW accounts.

Worked example for a Stamford retail store

Assume 4,200 square feet on Eversource Rate 30:

Input	Value
Annual kWh	78,000 (assumed)
Peak kW	55 (assumed)
Average commercial rate, June 2026	19.62 cents/kWh [eia-epm-5-6-a]
Standard Service supply	11.229 cents/kWh [energizect-rate-board-business]

All-in at statewide average: 78,000 × $0.1962 = $15,304 per year (assumed) [eia-epm-5-6-a]

Supply on Standard Service: 78,000 × $0.11229 = $8,759 per year (assumed) [energizect-rate-board-business]

Demand illustration (53 kW over 2 kW minimum):

• Distribution: 53 × $14.22 = $754 per month (assumed) [eversource-ct-rates-2026]

Efficiency for retail

Energy Opportunities funds LED lighting and networked controls, HVAC, and refrigeration upgrades in existing business facilities [energizect-energy-opportunities]. Incentives reach up to 40 percent of installed cost [energizect-energy-opportunities]. Programs remain available after supply switch.

Time-of-day Standard Service for low daytime load

Eversource Rate 27 and Rate 37 time-of-day Standard Service prices peak energy at 13.374 cents/kWh and off-peak at 10.374 cents/kWh for July through December 2026 [energizect-rate-board-business]. United Illuminating Rate GST posts 13.9333 cents peak and 10.9333 cents off-peak on the same Rate Board [energizect-rate-board-business]. A dispensary that closes at 9 p.m. and keeps security load overnight may beat flat Standard Service if off-peak share is high enough [energizect-rate-board-business].

Run a simple hour-by-hour split before choosing TOU default supply or a flat supplier contract [energizect-rate-board-business]. Security, refrigeration, and HVAC overnight contribute off-peak kWh even when doors are closed [energizect-rate-board-business].

Hybrid retailers and reporting

Forty-three medical cannabis hybrid retailers appear in the credential count alongside thirty-six adult-use retailers [ct-credential-count]. Annual electricity reporting under Section 21a-421m applies regardless of license type [ct-reraca-chapter-420h]. Retail finance should separate delivery riders from supply when comparing hybrid locations in Eversource versus UI territory [energizect-rate-board-business].

Delivery charge stack on Rate 30

Rate 30 bills distribution demand at $14.22 per kW over 2 kW, an Electric System Improvements charge of $3.78 per kW, transmission at $12.84 per kW, and a Competitive Transition Assessment of $1.47 per kW [eversource-ct-rates-2026]. A fifty-kW peak therefore carries four separate demand-based line items before energy kWh [eversource-ct-rates-2026]. Supplier savings on kWh do not reduce those delivery lines [eversource-ct-rates-2026].

Express rebates through Energy Opportunities can fund lighting and HVAC in existing retail buildouts [energizect-energy-opportunities]. Apply before leasehold improvements are complete when possible [energizect-energy-opportunities].

Norwalk to New Haven territory choices

Retail credentials span Eversource territory from Stamford and Norwalk inland to UI territory in New Haven and Milford [ct-credential-count]. A two-store operator on both utilities maintains two Standard Service benchmarks and two enrollment workflows [energizect-rate-board-business]. Consolidated billing still produces one invoice per utility account [ct-pura-choose-supplier].

Connecticut commercial averaged 19.62 cents per kWh in June 2026 [eia-epm-5-6-a]. Dispensaries below 500 kW stay on semiannual Standard Service unless they choose a supplier [energizect-rate-board-business]. Compare fixed twelve-month supplier offers against both the current Rate Board price and the proposed January reset [energizect-rate-board-business].

Energy Opportunities express rebates require a utility expert before ordering equipment [energizect-energy-opportunities]. LED sales floor retrofits during tenant improvement often qualify if documented before purchase [energizect-energy-opportunities].

Stamford and Hartford submarket notes

Suburban Eversource Rate 30 stores in Stamford and Norwalk compete with UI Rate GS shops in New Haven [ct-credential-count]. Each submarket carries different Standard Service benchmarks and delivery demand thresholds [energizect-rate-board-business]. Annual electricity reporting under Section 21a-421m applies to every retail credential holder [ct-reraca-chapter-420h].

Time-of-day Standard Service for retail load shape

Eversource Rate 27 and Rate 37 time-of-day Standard Service prices peak energy at 13.374 cents/kWh and off-peak at 10.374 cents/kWh for July through December 2026 [energizect-rate-board-business]. United Illuminating Rate GST posts 13.9333 cents peak and 10.9333 cents off-peak on the same Rate Board [energizect-rate-board-business]. A dispensary that closes at 9 p.m. and keeps security load overnight may beat flat Standard Service if off-peak share is high enough [energizect-rate-board-business].

Delivery charge stack on small general service

Rate 30 bills distribution demand at $14.22 per kW over 2 kW, an Electric System Improvements charge of $3.78 per kW, transmission at $12.84 per kW, and a Competitive Transition Assessment of $1.47 per kW [eversource-ct-rates-2026]. A fifty-kW peak therefore carries four separate demand-based line items before energy kWh [eversource-ct-rates-2026]. Supplier savings on kWh do not reduce those delivery lines [eversource-ct-rates-2026].

Hybrid retailers and annual reporting

Forty-three medical cannabis hybrid retailers appear in the credential count alongside thirty-six adult-use retailers [ct-credential-count]. Annual electricity reporting under Section 21a-421m applies regardless of license type [ct-reraca-chapter-420h]. Retail finance should separate delivery riders from supply when comparing hybrid locations in Eversource versus UI territory [energizect-rate-board-business].

Norwalk to New Haven territory split

Suburban Eversource Rate 30 stores in Stamford and Norwalk compete with UI Rate GS shops in New Haven [ct-credential-count]. Each submarket carries different Standard Service benchmarks and delivery demand thresholds [energizect-rate-board-business]. Express rebates through Energy Opportunities can fund lighting and HVAC in existing retail buildouts if documented before purchase [energizect-energy-opportunities].

Worked retail supply comparison

Assume 9,500 kWh monthly use and 18 kW peak on Rate 30 (inputs). At Connecticut's 19.62 cents/kWh commercial average, energy is about $1,864 per month [eia-epm-5-6-a]. A supplier at 10.5 cents/kWh on supply saves about $86 per month on generation before riders (assumed math) [energizect-rate-board-business]. Delivery demand lines remain unchanged [ct-pura-choose-supplier].

Additional procurement and tariff notes

Connecticut commercial power averaged 19.62 cents per kWh in June 2026, about 38 percent above the U.S. average of 14.19 cents [eia-epm-5-6-a]. Dispensaries below 500 kW remain on semiannual Standard Service unless they choose a supplier [energizect-rate-board-business].

Additional load and utility notes

Hybrid medical-adult-use retailers must file annual electricity usage reports like other establishments [ct-reraca-chapter-420h]. Separate supply and delivery when comparing Stamford Eversource stores to New Haven UI stores [energizect-rate-board-business].

Additional load and utility notes

See dispensary retail energy costs for national load benchmarks adapted to Connecticut tariffs [eia-epm-5-6-a].

Multi-store retail aggregation

Roll up kWh across Eversource Rate 30 and UI Rate GS accounts for corporate supply RFPs even when each store is small [ct-credential-count]. Each account still needs separate enrollment [ct-pura-choose-supplier]. Compare fixed twelve-month supplier offers against both current and proposed January Standard Service [energizect-rate-board-business]. Train store managers on delivery versus supply lines using the commercial bill explainer [ct-pura-choose-supplier].

Stamford versus New Haven delivered cost sketch

Assume Store A on Eversource Rate 30 uses 11,000 kWh and peaks at 55 kW; Store B on UI Rate GS uses 10,500 kWh and peaks at 52 kW (inputs). At 19.62 cents/kWh statewide commercial average, energy is about $2,158 and $2,060 per month respectively before delivery demand [eia-epm-5-6-a]. Rate 30 demand stack on 53 kW above 2 kW adds four line items before kWh [eversource-ct-rates-2026]. UI GS demand requires September 1, 2026 rate sheets [ui-pricing]. Fixed supplier contracts hedge July and January Standard Service resets on both accounts [energizect-rate-board-business].

Supplemental tariff and procurement detail

Hybrid retailers file annual electricity usage under Section 21a-421m using the same kWh export prepared for supplier bids [ct-reraca-chapter-420h].

Where to go next

Utility detail is on Eversource Connecticut and United Illuminating. The switching guide covers enrollment. Multi-store procurement is on the multi-site page.