Rhode Island Cannabis Cultivation Energy: Warwick Industrial Loads, G-02 Demand, and LRS Winter Swings
All 55 Rhode Island licensed cultivators sit in Warwick and West Warwick industrial space on Rhode Island Energy accounts. Indoor grows draw flat lighting with humid coastal summers averaging 563 cooling degree days. G-02 General C&I customers get six-month fixed Last Resort Service at 10.485 cents/kWh in summer 2026 but face 16.581 cents/kWh proposed for winter 2026-27. Crossing into G-32 Large Demand moves supply to monthly pricing only.
Rhode Island figures last verified 2026-09-11. Full citations in the Sources section.
Cultivation in a single-utility state
Rhode Island Energy serves every licensed cultivator on the Cannabis Office list [ri-ccc-cultivator-list]. All 55 were approved between 2016 and 2020 under the medical program and hold hybrid rights for adult-use supply [ri-ccc-cultivators]. Applications are closed [ri-ccc-cultivators].
Warwick and West Warwick industrial buildings host dense cultivation load in a small geographic footprint [ri-ccc-cultivator-list].
Climate and load
Rhode Island averages 5,761 heating degree days and 563 cooling degree days [noaa-cag-rhode-island]. Coastal moisture keeps summer dew points in the upper 60s F [noaa-cag-rhode-island]. Dehumidification often sets the summer peak on G-02 demand-metered accounts.
Delivery classes
| Class | Group | Demand billing | LRS pricing |
|---|---|---|---|
| C-06 | Commercial | Non-demand | Six-month fixed or monthly elective [ripuc-lrs] |
| G-02 | Commercial | Per kW | Six-month fixed or monthly elective [ripuc-lrs] |
| G-32 | Industrial | Per kW | Monthly only [ripuc-lrs] |
Per-kW distribution and transmission figures should be read from Rhode Island Energy Summary of Rates (R.I.P.U.C. No. 2095) in Docket 26-05-EL [ripuc-lrs].
Last Resort Service supply swing
| Period | Commercial fixed LRS |
|---|---|
| Apr-Sep 2026 | 10.485 cents/kWh [ripuc-lrs] |
| Oct 2026-Mar 2027 (proposed) | 16.581 cents/kWh [ripuc-lrs] |
| Industrial monthly (Jan 2026) | 17.851 cents/kWh [ripuc-lrs] |
A 12- or 24-month supplier contract hedges the October reset [ripuc-lrs]. G-32 accounts already pay monthly and see 10.038 to 17.851 cents/kWh across 2026 [ripuc-lrs].
Worked example
Assume a Warwick grow on G-02, 1.8 million kWh per year, 160 kW peak (inputs).
| Line item | Calculation |
|---|---|
| Energy at RI commercial average | 1,800,000 x $0.2270 = $408,600/year [eia-epm-5-6-a] |
| Summer LRS supply only | 1,800,000 x $0.10485 = $188,730/year [ripuc-lrs] |
Fixed supplier contract through winter avoids the proposed 16.581 cents/kWh reset [ripuc-lrs]. Delivery demand adds on top; pull current G-02 tariff for per-kW figures [ripuc-lrs].
Efficiency
Small Business Program if under 1.5 million kWh per year [rienergy-small-business]. Larger facilities use C&I custom programs [rienergy-small-business].
Pawtucket and Central Falls industrial sites
Cultivators cluster in Warwick, West Warwick, Cranston, Pawtucket, and Central Falls [ri-ccc-cultivator-list]. All locations share Rhode Island Energy tariffs [ripuc-lrs]. Lease comparisons should use delivered energy cost, not rent alone [eia-epm-5-6-a].
Industrial LRS monthly volatility
Industrial Group LRS ranged from 10.038 cents per kWh in May 2026 to 17.851 cents in January 2026 [ripuc-lrs]. G-32 cultivators without supplier contracts see that volatility monthly [ripuc-lrs]. Fixed supplier bids should reference trailing twelve-month Industrial LRS average, not one month [ripuc-lrs].
REG and behind-the-meter solar
Commercial-scale REG blocks accept bids from cultivation rooftops in Warwick industrial parks [ripuc-electric]. Behind-the-meter solar interacts with net metering and supplier supply lines [ripuc-electric]. Confirm contract language before assuming export credits offset grow load [ripuc-electric].
Hybrid license supply chain
Fifty-three cultivators hold hybrid licenses feeding nine retail shops and external wholesale buyers [ri-ccc-cultivator-list]. Energy cost per pound tracked at the meter supports both CFO budgeting and competitive wholesale pricing [eia-epm-5-6-a].
Winter Commercial LRS fixed hit 14.676 cents per kWh in 2025-26 while summer 2026 fixed is 10.485 cents [ripuc-lrs]. Cultivators on G-32 Industrial LRS saw monthly swings from 10.038 to 17.851 cents per kWh across 2026 [ripuc-lrs]. Supplier hedging is the primary tool for both groups [ripuc-lrs].
Closed application period
Cannabis Office states cultivator applications are closed [ri-ccc-cultivators]. Energy upgrades at existing Warwick and West Warwick sites dominate procurement [ri-ccc-cultivator-list].
Lighting, HVAC, and dehumidification load
Indoor Warwick grows run flat lighting schedules with HVAC and dehumidification fighting coastal humidity from June through September [noaa-cag-rhode-island]. Rhode Island averages 563 cooling degree days, the mildest heating load in New England but with shoulder-season latent load that keeps dehumidifiers running when sensible cooling is modest [noaa-cag-rhode-island]. Summer peak kW on G-02 often tracks dehumidification and HVAC rather than lighting nameplate alone [noaa-cag-rhode-island].
Rhode Island has not adopted a Massachusetts-style horticultural lighting power density cap in the cultivator rules reviewed for this page [ri-ccc-cultivators]. Confirm current Commission regulations before specifying fixtures. Efficiency upgrades through the Small Business Program or larger C&I custom track can reduce baseload kWh before supplier procurement [rienergy-small-business].
Supply choice vs Last Resort Service default
All Rhode Island Energy cultivators may buy from registered nonregulated power producers instead of Last Resort Service [ripuc-electric]. G-02 Commercial Group accounts compare supplier fixed offers against six-month fixed LRS at 10.485 cents/kWh for summer 2026 and proposed 16.581 cents/kWh for winter 2026-27 [ripuc-lrs]. G-32 Industrial Group accounts compare against trailing monthly Industrial LRS because no six-month fixed option exists [ripuc-lrs].
Interval data helps suppliers price flat cultivation load on G-02. If the utility has installed AMI, export twelve months before requesting quotes. Read interval data and AMI meters for negotiation tips.
Demand charge planning on G-02
Pull per-kW distribution and transmission demand from Rhode Island Energy Summary of Rates R.I.P.U.C. No. 2095 in Docket 26-05-EL before modeling expansion [ripuc-lrs]. A grow that reduces peak from 180 kW to 150 kW saves the per-kW rate times 30 kW every month on delivery demand alone once tariff figures are applied [ripuc-lrs]. Dehumidification and HVAC oversizing persist on the bill until equipment is right-sized [noaa-cag-rhode-island]. Request a class-change review from Rhode Island Energy before canopy expansion energizes load that could push the campus from G-02 Commercial Group fixed LRS to G-32 Industrial monthly LRS [ripuc-lrs].
Meter read timing for supplier start dates
Rhode Island Energy switches supply on the next meter read after enrollment [ripuc-electric]. Align contract start with the read date on the enrollment confirmation, not the signature date [rienergy-shop]. A grow signing in late September still benefits from beating the October Commercial LRS reset if the read falls before the new LRS period [ripuc-lrs].
Industrial Last Resort Service monthly volatility
Industrial Group Last Resort Service ranged from 10.038 cents/kWh in May 2026 to 17.851 cents in January 2026 [ripuc-lrs]. G-32 cultivators without supplier contracts see that volatility monthly [ripuc-lrs]. Fixed supplier bids should reference trailing twelve-month Industrial LRS average, not one month [ripuc-lrs].
Warwick and West Warwick cluster
All fifty-five cultivators sit in Rhode Island Energy territory clustered in Warwick and West Warwick industrial parks [ri-ccc-cultivator-list]. Lease comparisons should use delivered energy cost, not rent alone [eia-epm-5-6-a]. Hybrid licenses allow adult-use supply from medical-origin buildouts [ri-ccc-cultivator-list].
REG rooftop opportunities
Commercial-scale Renewable Energy Growth blocks accept bids from cultivation rooftops [ripuc-electric]. Behind-the-meter solar interacts with net metering and supplier supply lines [ripuc-electric]. Confirm contract language before assuming export credits offset grow load [ripuc-electric].
Pawtucket and Central Falls sites
Cultivators cluster in Warwick, West Warwick, Cranston, Pawtucket, and Central Falls [ri-ccc-cultivator-list]. All share Rhode Island Energy tariffs [ripuc-lrs]. Delivered energy cost should drive lease decisions [eia-epm-5-6-a].
Additional procurement and tariff notes
Fifty-five cultivators; fifty-three hybrid adult-use [ri-ccc-cultivator-list]. Closed application period [ri-ccc-cultivators]. Warwick and West Warwick industrial cluster [ri-ccc-cultivator-list].
Additional load and utility notes
Industrial LRS monthly volatility requires trailing twelve-month supplier benchmarks [ripuc-lrs]. Facilities above 1.5 million kWh use large C and I programs [rienergy-small-business].
Additional load and utility notes
REG commercial-scale solar bids from industrial rooftops [ripuc-electric]. Net metering interacts with supplier supply lines [ripuc-electric].
Trailing twelve-month Industrial LRS average
Fixed supplier bids should reference trailing twelve-month Industrial LRS, not one month [ripuc-lrs]. Warwick industrial rents should be compared on delivered energy cost [eia-epm-5-6-a]. Hybrid licenses supply adult-use from medical-origin buildouts [ri-ccc-cultivator-list].
G-32 monthly LRS hedge
Trailing twelve-month Industrial LRS average beats single-month benchmarks for supplier bids [ripuc-lrs]. Fifty-five cultivators clustered in Warwick industrial parks [ri-ccc-cultivator-list]. REG rooftop bids may offset supply kWh [ripuc-electric].
Supplemental tariff and procurement detail
Fifty-three hybrid cultivators supply adult-use from medical-origin sites [ri-ccc-cultivator-list]. Facilities above 1.5 million kWh use large C and I retrofit tracks [rienergy-small-business]. REG rooftop bids may offset supply kWh [ripuc-electric].
Warwick cluster supply strategy
All fifty-five cultivators sit in Warwick-area industrial parks on Rhode Island Energy [ri-ccc-cultivator-list]. Hybrid licenses feed adult-use from medical buildouts [ri-ccc-cultivator-list]. Trailing twelve-month Industrial LRS average beats one-month benchmarks for fixed supplier bids [ripuc-lrs]. Facilities above 1.5 million kWh graduate from Small Business Program [rienergy-small-business].
Industrial LRS hedge discipline
G-32 cultivators without supplier contracts need monthly Industrial LRS review [ripuc-lrs]. REG enrollment may offset supply kWh on Warwick rooftops [ripuc-electric]. Hybrid cultivator licenses supply adult-use [ri-ccc-cultivator-list].
Small Business kWh threshold
Graduate to large C and I programs above 1.5 million kWh per year [rienergy-small-business].
G-32 industrial LRS and REG credits
G-32 cultivators without supplier contracts need monthly Industrial LRS review because only Industrial Group offers monthly default supply [ripuc-lrs]. Renewable Energy Growth enrollment may offset supply kWh on Warwick rooftop solar if REG credits apply to the account [ripuc-electric]. Hybrid cultivator licenses supply adult-use retail from the same campus meter in several approved locations [ri-ccc-cultivator-list]. Graduate to large commercial and industrial programs above 1.5 million kWh per year for deeper Efficiency Rhode Island custom rebates [rienergy-small-business]. Closed cultivator market means existing fifty-five licenses compete for industrial space with limited new meter opportunities [ri-ccc-cultivators].
Related pages
Commercial rates, switching guide, and demand charges explained.
Compare with other states
Frequently asked questions
Where are Rhode Island cultivators located?
All 55 licensed cultivators cluster in Warwick, West Warwick, Cranston, Pawtucket, and Central Falls industrial space, all in Rhode Island Energy territory.
What delivery class fits a mid-size grow?
G-02 General C&I is demand-metered for many cultivation facilities. C-06 Small C&I is non-demand for smaller loads. G-32 Large Demand applies to larger facilities with monthly LRS pricing only.
How big is the Last Resort Service winter swing?
Commercial fixed LRS was 14.676 cents/kWh in winter 2025-26 versus 10.485 cents/kWh in summer 2026. Proposed October 2026 through March 2027 is 16.581 cents/kWh.
Can cultivators still apply for licenses?
The Cannabis Office states the cultivation application period is closed. All 55 cultivators were approved between 2016 and 2020 under the medical program.
Does Rhode Island cap grow lighting?
Rhode Island has not adopted a Massachusetts-style lighting power density cap in the cultivator rules reviewed for this page. Confirm current Commission regulations.
Are rebates available for grow HVAC?
Facilities under 1.5 million kWh per year qualify for the Small Business Program with up to 70 percent LED incentives. Larger grows use C&I retrofit and custom programs.
Related reading
- Rhode Island Cannabis Energy: Last Resort Service, Single-Utility Market, and CCC Licensing
RI cannabis power: Rhode Island Energy choice, LRS winter swing, 22.70 cents/kWh avg, and 55 licensed cultivators.
- Rhode Island Commercial Electricity Rates for Cannabis Facilities: LRS Groups, G-02 and G-32, ISO-NE
Rhode Island commercial power at 22.70 cents/kWh vs U.S. average, Rhode Island Energy G-02/G-32 classes, Last Resort Service 10.485 to 16.581 cents/kWh swing.
- How to Switch Electricity Suppliers in Rhode Island: A Step-by-Step Guide for Cannabis Businesses
Step-by-step Rhode Island supplier switching on Rhode Island Energy: nonregulated power producers, Last Resort Service benchmarks, and enrollment rules.
- Massachusetts Cannabis Cultivation Energy: Lighting Caps, Winter Heat Loss, and Eversource G-2 Demand
Massachusetts indoor grow power: 935 CMR 500.120 lighting limits, 6,132 HDD climate, utility demand classes, and a worked cost example.
- Connecticut Cannabis Cultivation Energy: Manufacturer Rate Classes, Summer Humidity, and Standard Service
Connecticut indoor grow power: humid summers, Eversource Rate 56/58 demand, 500 kW LRS threshold, and a worked cost example at 19.62 cents/kWh.
- Demand Charges Explained for Cannabis Cultivators
What a demand charge is, how utilities measure peak kW in 15- or 30-minute windows, why grow rooms get hit hard, how ratchets work, and a worked example.
- Dehumidification Load in Indoor Cannabis Cultivation
How much water a flowering canopy puts into the air, latent vs sensible load, dehumidifier pints-per-kWh ratings, and how it shows up on the electric bill.
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 [eia-epm-5-6-a], refer to the entries below. Links open the primary source in a new tab.
- [eia-epm-5-6-a]Electric Power Monthly, Table 5.6.A — U.S. Energy Information Administration. Accessed 2026-09-11.
- [ri-ccc-cultivator-list]Approved Applicants and Licenses (licensed cultivators) — Rhode Island Cannabis Control Commission. Accessed 2026-09-11.
- [ripuc-lrs]Rhode Island Energy Last Resort Service rates by customer group — Rhode Island Public Utilities Commission. Accessed 2026-09-11.
- [noaa-cag-rhode-island]Climate at a Glance: Rhode Island statewide HDD and CDD — NOAA NCEI. Accessed 2026-09-11.
- [rienergy-small-business]Small Business Program — Rhode Island Energy. Accessed 2026-09-11.
- [ri-ccc-cultivators]Cultivators (application period closed) — Rhode Island Cannabis Control Commission. Accessed 2026-09-11.
- [ripuc-electric]Electric: rates, tariffs, competitive supply — Rhode Island Public Utilities Commission. Accessed 2026-09-11.
- [rienergy-shop]Shopping for your electricity supply — Rhode Island Energy. Accessed 2026-09-11.