How to Switch Electricity Suppliers in Massachusetts: A Step-by-Step Guide for Cannabis Businesses
Any customer of Eversource, National Grid, or Unitil may buy electricity supply from a DPU-licensed competitive supplier or electricity broker. The supplier submits enrollment, the switch takes effect on the next meter read, and delivery charges stay on the utility tariff. Medium and large commercial accounts default to monthly Basic Service unless they sign a contract, which makes the benchmark and timing different from a small dispensary on six-month fixed Basic Service.
Step 1: Confirm the account is eligible
Massachusetts opened retail access under the Electric Restructuring Act of 1997, with competitive supply available since 1998 [ma-gl-164-1f]. All residential, commercial, and industrial customers of Eversource, National Grid, and Unitil may buy generation from a DPU-licensed competitive supplier or electricity broker [ma-dpu-basic-service]. The utility continues to deliver power, maintain lines, and respond to outages [ma-dpu-basic-service].
The eligibility question for a cannabis business is usually the account name and utility type, not the license type. Municipal light plant customers in about 40 towns do not have supplier choice [ma-dpu-basic-service]. A dispensary on a landlord's master meter cannot switch unless the landlord switches. Put the account in the licensee's name before shopping.
Step 2: Pull twelve months of bills and identify delivery class
Gather account number, meter number, service address, delivery class, monthly kWh, monthly peak kW if demand-metered, and every supply and delivery line item. Eversource uses G-1, G-2, and G-3 general service schedules with different demand thresholds in Eastern and Western Massachusetts [eversource-ema-rates-2026]. National Grid uses G-1 through G-3 with time-of-use on the largest class [national-grid-ma-rates].
Class determines how much of your bill is demand charges vs energy charges. It does not determine eligibility for supply choice. Both matter when comparing supplier offers.
Step 3: Find your Basic Service benchmark
Basic Service is the utility-procured default supply at cost with no markup [ma-dpu-basic-service]. It is the benchmark for every quote.
| Customer type | Basic Service pricing |
|---|---|
| Residential and small commercial | Six-month fixed price, procured on a published schedule [ma-dpu-basic-service] |
| Medium and large commercial | Monthly pricing by default, procured quarterly for three-month strips [ma-dpu-basic-service] |
Read the supply charge on your bill or the DPU Basic Service page. If you are already with a supplier, use the renewal price in your contract as the comparison point.
Basic Service includes only minimum Renewable Portfolio Standard content. The Renewable Energy Charge, Energy Efficiency Charge, Distributed Solar Charge, and Net Metering Recovery Surcharge are delivery riders that apply whether or not you switch [ma-dpu-basic-service].
Step 4: Verify the supplier is DPU-licensed
Massachusetts licenses competitive suppliers and electricity brokers under M.G.L. c. 164, Section 1F [ma-gl-164-1f]. Suppliers are licensed separately for C and I and residential service [ma-dpu-basic-service]. Confirm licensing before sharing interval data or signing. The DPU competitive supply overview describes product types and customer protections [ma-dpu-competitive-supply-overview].
Step 5: Request comparable offers
Ask each supplier for the same parameters:
- Contract term (6, 12, 24, or 36 months)
- Product type: fixed, index, or block-and-index
- Start month aligned to meter read
- Renewable content above minimum RPS
- Consolidated vs dual billing
Compare all-in supply cents per kWh against Basic Service. For a medium commercial grow on monthly Basic Service, compare against trailing twelve-month supply cost, not just the current month [ma-dpu-basic-service].
Step 6: Sign and choose billing format
Read contract terms carefully: auto-renewal, notice windows, early termination fees, and price adjustment clauses. Massachusetts commercial customers do not get the same residential telemarketing protections the DPU has emphasized in recent legislation [ma-dpu-basic-service], so the contract language is your protection.
Choose consolidated billing through the utility or a separate supplier bill based on your AP workflow [ma-dpu-competitive-supply-overview].
Step 7: Supplier submits enrollment to the utility
The supplier sends enrollment electronically to Eversource, National Grid, or Unitil [ma-dpu-competitive-supply-overview]. You do not need to cancel Basic Service separately. Processing time varies; the switch effective date is the next meter read after acceptance.
For buildouts, time enrollment so supply starts when the utility energizes service. A medium/large account that energizes without a supplier contract defaults to monthly Basic Service [ma-dpu-basic-service].
Step 8: Confirm the first bill after the switch
Check that:
- Basic Service supply line disappeared or reduced to zero
- Supplier charge appears at the contracted rate
- Delivery class and demand charges unchanged
- Energy Efficiency and other delivery riders still present [ma-dpu-basic-service]
If the supplier charge is missing, call the supplier first, then the utility account team.
Step 9: Calendar contract end and notice dates
Set calendar reminders at 90 and 60 days before contract end. Re-bid before auto-renewal triggers. A cultivation facility that lapses to monthly Basic Service on a winter month can see ISO-NE supply spikes with no hedge [ma-dpu-basic-service].
Mass Save efficiency programs remain available after switching because they are tied to delivery [masssave-business-rebates].
Common mistakes in Massachusetts
Switching the wrong account. Multi-meter campuses may have landlord meters, common-area meters, and license meters. Enroll the cannabis licensee account.
Ignoring the monthly Basic Service default. Production facilities often exceed the small-commercial threshold. Default monthly pricing is an indexed product [ma-dpu-basic-service].
Comparing supplier kWh price without delivery context. Supply savings do not reduce delivery demand charges on G-2 or G-3 [eversource-ema-rates-2026].
Missing the municipal light plant check. Confirm the address is not served by an MLP town before signing a lease [ma-dpu-basic-service].
Broker vs supplier licensing
M.G.L. c. 164 Section 1F licenses competitive suppliers and electricity brokers separately [ma-gl-164-1f]. Brokers arrange contracts; suppliers hold the supply license [ma-gl-164-1f]. Confirm which entity holds the supply license on your contract before enrollment [ma-dpu-competitive-supply-overview].
Three-month fixed Basic Service option
Medium and large C and I customers may request a three-month fixed Basic Service price instead of monthly default [ma-dpu-basic-service]. That option is still utility procured, not a substitute for a competitive fixed contract, but it reduces month-to-month volatility if you are between supplier terms [ma-dpu-basic-service].
Broker versus supplier licensing
M.G.L. c. 164 Section 1F licenses competitive suppliers and electricity brokers separately [ma-gl-164-1f]. Brokers arrange contracts; suppliers hold the supply license [ma-gl-164-1f]. Confirm which entity holds the supply license on your contract before enrollment [ma-dpu-competitive-supply-overview].
Three-month fixed Basic Service option
Medium and large C and I customers may request a three-month fixed Basic Service price instead of monthly default [ma-dpu-basic-service]. That option is still utility procured, not a substitute for a competitive fixed contract, but it reduces month-to-month volatility if you are between supplier terms [ma-dpu-basic-service].
Energy Efficiency Charge persists
The Energy Efficiency Charge funding Mass Save remains on delivery bills regardless of supplier [ma-dpu-basic-service]. Rebates and ConnectedSolutions enrollment continue through Mass Save sponsors [masssave-business-rebates]. Supplier switch does not affect Mass Save eligibility [masssave-business-rebates].
DPU competitive supply product overview
The DPU publishes product types and consumer protections for competitive electric supply [ma-dpu-competitive-supply-overview]. Confirm supply license holder on broker-arranged contracts [ma-gl-164-1f]. Delivery riders including RPS and net metering recovery remain on the utility bill [ma-dpu-basic-service].
Post-switch bill audit
Verify Basic Service supply disappeared, competitive supply appeared, and delivery lines unchanged [ma-dpu-basic-service]. Dispute supply variances with the supplier first [ma-dpu-competitive-supply-overview].
Additional procurement and tariff notes
M.G.L. c. 164 Section 1F licenses suppliers and brokers separately [ma-gl-164-1f]. Confirm supply license holder on broker contracts [ma-dpu-competitive-supply-overview].
Additional load and utility notes
Three-month fixed Basic Service is available on request for medium and large C and I [ma-dpu-basic-service]. It is not a substitute for competitive fixed supply [ma-dpu-basic-service].
Additional load and utility notes
Post-switch audit: Basic Service supply gone, competitive supply present, delivery unchanged [ma-dpu-basic-service]. Dispute supply variances with supplier first [ma-dpu-competitive-supply-overview].
Broker contract supply license check
Confirm competitive supplier license holder on broker-arranged contracts [ma-gl-164-1f]. Three-month fixed Basic Service reduces volatility between supplier terms but remains utility procured [ma-dpu-basic-service]. RPS and net metering riders stay on delivery [ma-dpu-basic-service].
Supply license verification
Broker-arranged contracts must identify the licensed competitive supplier [ma-gl-164-1f]. Post-switch bill audit confirms Basic Service removal [ma-dpu-basic-service]. RPS and net metering riders remain [ma-dpu-basic-service].
Supplemental tariff and procurement detail
Three-month fixed Basic Service option reduces between-contract volatility but remains utility procured [ma-dpu-basic-service]. Confirm licensed supplier on broker contracts [ma-gl-164-1f]. Post-switch audit: Basic Service gone, delivery riders remain [ma-dpu-basic-service].
Competitive supply audit trail
Archive Basic Service benchmark at enrollment and verify licensed supplier on broker contracts [ma-dpu-basic-service] [ma-gl-164-1f]. Delivery riders unchanged post-switch [ma-dpu-basic-service].
Broker supply license row
Contract appendix should name licensed competitive supplier entity [ma-gl-164-1f]. Three-month fixed Basic Service is optional volatility buffer [ma-dpu-basic-service].
RPS rider reminder
Renewable Energy Charge remains on delivery after supplier switch [ma-dpu-basic-service].
Licensed supplier entity and RPS riders
Contract appendix should name the licensed competitive supplier entity registered under M.G.L. c. 164, section 1F [ma-gl-164-1f]. Renewable Energy Charge and other RPS riders remain on the delivery bill after supplier switch [ma-dpu-basic-service]. Three-month fixed Basic Service is an optional volatility buffer for accounts between supplier contracts [ma-dpu-basic-service]. Broker agreements should disclose whether commission is embedded in the supply rate or billed separately [ma-dpu-competitive-supply-overview]. Pull interval data from AMI meters before requesting quotes on batch processing load [ma-dpu-competitive-supply-overview].
Auto-renewal clause review
Massachusetts competitive supply contracts may auto-renew at index unless cancelled sixty days before term end [ma-dpu-competitive-supply-overview]. Calendar renewal dates in the same spreadsheet as Basic Service reset months [ma-dpu-basic-service].
Where to go next
Rate class detail is on the commercial rates page. Facility load profiles are on the cultivation, extraction, dispensary, and multi-site pages.
Frequently asked questions
Who submits the switch in Massachusetts, the customer or the supplier?
The supplier submits enrollment to the utility after you sign a supply agreement. You do not call the utility to initiate a switch, though you can call to confirm processing status or to return to Basic Service later.
How long does a Massachusetts switch take?
The effective date is the next meter read after the utility processes enrollment. For most commercial accounts that is between a few days and about five weeks depending on where enrollment falls in the billing cycle.
Do delivery charges change when I switch suppliers in Massachusetts?
No. Delivery is regulated by the DPU and set in the utility tariff. Only the supply portion changes when you move from Basic Service to a competitive supplier or from one supplier to another.
What is the difference between six-month and monthly Basic Service?
Residential and small commercial customers default to a six-month fixed Basic Service price. Medium and large commercial customers default to monthly pricing procured in four solicitations per year covering three-month strips. A grow above the small-commercial threshold on default supply rides wholesale volatility.
Can I switch back to Basic Service?
Yes. Contact the utility or supplier per your contract terms to return to Basic Service. Read early termination fees before leaving a fixed contract. The Basic Service price you return to may differ from the one you left.
Does switching affect Mass Save rebates?
Mass Save is funded by the Energy Efficiency Charge on delivery bills and generally remains available regardless of supply choice. Confirm program eligibility before assuming a rebate changed.
Related reading
- Massachusetts Cannabis Energy: Electricity Choice, ISO-NE Rates, and CCC Licensing for Licensed Operators
Massachusetts cannabis power: DPU choice on Eversource and National Grid, Basic Service benchmarks, and 24.52 cents/kWh commercial average.
- Massachusetts Commercial Electricity Rates for Cannabis Facilities: Basic Service, ISO-NE, and Utility Classes
Massachusetts commercial power at 24.52 cents/kWh vs. the U.S. average, Eversource and National Grid G-1/G-2/G-3 demand charges, and Basic Service tiers.
- What Is Energy Deregulation? How Electricity Choice Works for Commercial Customers
How deregulation splits supply from delivery, who gets to choose a supplier, what the utility still does, and where cannabis businesses can shop in 17 markets.
- Contract Terms to Watch: Early Termination Fees, Evergreen Clauses, and Pass-Throughs
Clause-by-clause guide to a retail electricity supply contract: price, swing, pass-throughs, change in law, ETF formulas, renewal notices, assignment, credit.
- 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.
- Supplier Contract Comparison Worksheet
Line up two or three competitive electricity supply offers with pass-through, bandwidth, and early-termination fields side by side against your current rate.
- How Long Does Switching Electricity Suppliers Take?
How long supplier switches take: PA's 3-day rule, CT meter-read timing, Texas ERCOT, rescission windows, and mid-contract moves for commercial accounts.
- What Happens to My Utility When I Switch Suppliers?
After you switch suppliers the utility still delivers power and fixes outages. One bill vs two, delivery demand, price to compare, and net metering.
- Can Cannabis Businesses Choose Their Electricity Supplier?
Whether grows and dispensaries can shop for electricity supply in deregulated states, what suppliers may ask, and what stays with the utility after you switch.
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 [ma-dpu-basic-service], refer to the entries below. Links open the primary source in a new tab.
- [ma-dpu-basic-service]Basic service information and rates (updated July 6, 2026) — Massachusetts Department of Public Utilities. Accessed 2026-09-11.
- [ma-dpu-competitive-supply-overview]Competitive electric supply product overview — Massachusetts Department of Public Utilities. Accessed 2026-09-11.
- [ma-gl-164-1f]M.G.L. Part I, Title XXII, Chapter 164, Section 1F: Retail access; licensing of generation companies, aggregators, suppliers and energy brokers — Massachusetts General Court. Accessed 2026-09-11.
- [eversource-ema-rates-2026]2026 Summary of Eastern Massachusetts Electric Rates for Greater Boston Service Area, rates effective September 1, 2026 — Eversource Energy. Accessed 2026-09-11.
- [masssave-business-rebates]Mass Save Business Rebates and Incentives — Mass Save. Accessed 2026-09-11.
- [national-grid-ma-rates]Massachusetts Business Service Rates (G-1, G-2, G-3) — National Grid. Accessed 2026-09-11.