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Electricity Suppliers in Massachusetts: Understand Energy Options & How to Switch

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An energy switch in MA is easy because you have a right to choose your power supplier. Just like you can shop and compare prices for cars and clothes, you can do the same for power companies and their electricity plans. This is due to energy deregulation.

This guide will help you evaluate your options and make an energy switch in Massachusetts that best serves your needs and situation.

Can you switch electric suppliers in Massachusetts?

Yes, you can change energy providers in Massachusetts. Because Massachusetts is one of the states that has deregulated its energy market, several companies compete to earn your business, offering different plans and terms along with benefits and other services.

Energy choice started in the early 1990s and gained traction by the end of the decade, which is when Massachusetts chose to enact energy deregulation. Rather than having to get your energy from a single utility, you can choose your provider. The potential benefits may be competitive pricing, more plans to choose from, innovation in services and options, and improved efficiency.

Is it worth it to switch electric suppliers in Massachusetts?

Before talking about how to change energy providers, it is worth taking a look at whether an energy switch in MA is beneficial. You may be able to lock in a better supply rate, take advantage of a variety of plans or find other ways to lower your electric bill.

With a third-party electric supplier that is trying to earn your business, you may be able to find plans that offer energy from 100% renewable sources or get additional value from benefits, services and programs.

The potential benefits of making an energy switch in Massachusetts depend on your circumstances, but it may be worth it.

What is the difference between a competitive electric supplier and a utility in Massachusetts?

Electric utilities in Massachusetts own the distribution infrastructure that is involved in  distributing electricity through  wires and substations, down to the wires that go to your home or business. Public utilities include National Grid, Unitil, Eversource Energy and various municipal utilities like Belmont Municipal Light Department or Shrewsbury Electric & Cable Operations.

The difference in suppliers vs. utility companies within a competitive, deregulated market is that multiple providers can buy or generate power and sell it to consumers. Companies like Constellation compete for your business, offering Massachusetts businesses and residents a variety of plans and options.

How do you shop and compare the different Massachusetts electric suppliers?

How to switch your electric supplier in Massachusetts.

When making an energy switch in MA to the right provider and plan, it is important to get the rate, terms and services that work for you. The following steps walk you through how to compare and change electricity suppliers in MA.

Step One: Know your current supply costs

Before you make an energy switch in Massachusetts, you need to understand your current costs and your usage patterns. You will need to know how to read and calculate your electricity and natural gas bills to get this insight.

Step Two: Ask questions and find supplier prices

The next step is to know how to shop for an electricity or energy plan. That involves asking the right questions of each potential energy supplier:

  • What is the price charged for each unit of electricity used — measured in kWh?
  • Are there minimum bill amounts?
  • Should I choose a variable or fixed-rate plan?
  • Would I benefit from locking in my electric rate?
  • How does variable pricing change?
  • What is the length of the contract term and are there differences between short-term and long-term energy contracts?
  • Are there penalties for ending a contract early?
  • What is included in the price per kWh?
  • Is there a short-term promotional price? When does it end and what will I pay afterward?
  • What other benefits and services might enhance the value of working with one supplier vs. another?
  • Are there special plans, such as EV charging plans, 100% renewable plans, time of use plans and so on?

Step Three: Compare factors, savings or additional costs

When you have complete information, it is a matter of how to choose an energy provider. Calculate your potential bill with each of your options. Be sure to include the value of other services.

Step Four: Evaluate company reputation and customer service

You will want to work with a reputable company that treats you right. Read reviews, use the company website and call customer service. Beyond terms and rates, the service you get matters.

Step Five: Learn how to change energy suppliers

When you have made your choice of providers and plans, you will need to know that provider’s change process. Constellation makes the process extremely straightforward — either use the website or call a customer service rep to change your MA energy provider.

Are there any fees or penalties for switching energy suppliers in Massachusetts?

When it comes to how to change your energy supplier, knowing the costs of switching is important. With Constellation, you have a 90-day guarantee period where you can cancel at any time by calling customer care at 1-855-465-1244. Your service will switch directly to the utility serving your home or business.

If you wait to cancel beyond the 90-day guarantee, you will incur an early termination fee. The regulations vary by state, so make sure you are looking at Massachusetts requirements when comparing suppliers.

How long does the switching process take and will there be any service interruptions?

Your part in how to switch electricity suppliers is easy and fast with Constellation, taking just minutes online or with a customer care rep. The actual work of making the switch is on our end. It can take one or two billing cycles before the switch is complete and you see the Constellation supply rate on your utility bill. No service interruptions will occur during this timeframe.

Are there any clean or renewable electricity options available in Massachusetts?

Constellation offers various renewable energy options. When you explore electricity plans and rates in Massachusetts, you will see 100% renewable plans available to you. To determine which is right for you, we make it easy to compare renewable energy solutions.

Will I lose electricity while I switch?

No, you will not experience any break in electric service during the switch. You won’t even notice the change because we make it seamless. You will enjoy uninterrupted power and will see the new supplier and rate on your utility bill within a billing cycle or two.

How often can I switch electric suppliers in Massachusetts?

While there is no limit to how often you can switch, doing so may incur costs. In considering how to switch electricity suppliers, know the Massachusetts details that affect your costs.

Constellation wants you to have time to evaluate how well we are servicing you, giving you a 90-day guarantee period where you can switch with no fee. If you switch after 90 days and before your contract expires, you will need to pay an early termination fee and are responsible for all charges until the next meter read date.

Find out what your Massachusetts electricity rate could be now

Now that you know how to change your MA electricity supplier, find out what options are available from Constellation in Massachusetts. You can explore residential service options online to see how easy and worthwhile switching can be.

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© 2025 Constellation. The offerings described herein are those of either Constellation NewEnergy, Inc., Constellation NewEnergy-Gas Division, LLC, Constellation Connect, LLC or Constellation Home Products & Services, LLC (d/b/a Constellation Home in Maryland and d/b/a Constellation in Georgia, Pennsylvania and Texas), each affiliates of each other. The prices of Constellation are not regulated by any state Public Utility Commission. You do not have to buy Constellation electricity, natural gas or any other products to receive the same quality regulated service from your local utility. Brand names and product names are trademarks or service marks of their respective holders. All rights reserved. 

Electricity or Gas Supplier License/Order #s and Home Services #s: CA 1359, CTA0032; CT 06-07-11, 01-06; DE 00-162; DC GA06-2, EA01-5; GA GM-46; IL 16-0205, 17-0330; IA G-0010; ME 2000-989; MD IR-655, IR-311, IR-500; MA GS-030, CS-015; MI U-14867, U-13660; NE NG-0043; NH DM 17-024; NJ GSL-0101, ESL-0016; OH 09-153G, 00-003E; PA A-125095, A-110036; OR ES4, RI 2379(Z1), D-96-6(E); TX 10014, B07305101; VA G-26, G-51, E-11A; TX Licenses HVAC TACLA 00107498R, Electrical TECL 343159, Service Plan TSCP #684, Plumbing #43217; GA REG CN-211051