Eversource (Massachusetts) electric rates and bill calculator
An Eversource (Massachusetts) bill for 1,000 kWh on Schedule R-1 is $369.58 in November 2026 (37.0¢ per kWh, before tax). This calculator uses the Eversource (Massachusetts) Residential (Eastern Massachusetts) tariff (Schedule R-1) and its riders. Type the kWh from your bill. The result shows each charge on a different line.
- Schedule R-1
- Effective: September 1, 2026 (delivery); Basic Service August 1, 2026 to January 31, 2027
- Last checked: October 16, 2026
Current Eversource (Massachusetts) electricity rates
A Eversource (Massachusetts) bill for 1,000 kWh on Schedule R-1, with all charges, at the rates in effect at our last check on October 16, 2026:
| Billing month | Bill | Average price per kWh |
|---|---|---|
| November | $369.58 | 36.96¢ |
| Charge | Rate |
|---|---|
| Customer charge | $10.00 per month |
| Distribution energy charge | 9.837¢ per kWh |
The average price includes the base rates and the riders. See all rates and riders, the example bills and the sources.
Average Eversource (Massachusetts) bill
In 2025, the average Eversource (Massachusetts) home that bought its power from Eversource (Massachusetts) used 474 kWh a month and paid $101.86 a month (21.5¢ per kWh). The average for all homes in Massachusetts was $181.08 (596 kWh, 30.4¢ per kWh). These are yearly averages from the EIA-861 data of the U.S. Energy Information Administration, at the rates of 2025. See the average electric bill in Massachusetts and in each state. To turn the watts of an appliance into dollars, use the electricity cost calculator.
For an apartment: with the EIA average kWh of small homes in the Northeast, a 1-bedroom apartment (402 kWh) costs about $154.54 a month on R-1 and a 2-bedroom apartment (578 kWh) about $217.85 (November rates, before taxes). See the apartment electric bill at each utility.
Help paying your Eversource (Massachusetts) bill
- Massachusetts Discount Rate Program: A discount of 42% for electric accounts (25% for gas accounts).
- Massachusetts Good Neighbor Energy Fund: Energy assistance for residents in temporary crisis who are struggling to pay their energy bills.
- Energy Efficiency for Lower Income Customers in Massachusetts: A no-cost Home Energy Assessment and free energy-saving products. You may also get no-cost replacement of inefficient refrigerators, freezers, window air conditioners or dehumidifiers, plus no-cost insulation, air sealing and heating system upgrades.
- Payment Plans: A plan to catch up on a past-due balance. Your service continues as long as you make your monthly payments on time. Plans are interest-free if you qualify.
- Budget Billing: Your yearly electric and gas use is divided into level monthly payments, reviewed regularly, with a settle-up in the 12th month.
See all 5 Eversource (Massachusetts) bill help programs, with who qualifies, how to apply, state energy assistance and the shutoff rules.
EV charging cost on Eversource (Massachusetts)
Charging an electric car for 1,000 miles a month (300 kWh) overnight on weekdays adds this much to a 1,000 kWh November bill:
| Plan | A month | Per 100 miles | Charging period |
|---|---|---|---|
| R-1Residential (Eastern Massachusetts) | $107.88 | $10.79 | All hours |
Use your own miles, car and charging time in the EV charging cost calculator.
No account needed: Massachusetts rate changes (RSS feed) · all rate changes (RSS feed) · a monthly reminder for your calendar · save your bills in this browser. Each month, the bill comparison shows what 1,000 kWh costs at every utility.
Solar savings on Eversource (Massachusetts)
With the solar output of Boston (PVWatts), a 6 kW system makes about 7,648 kWh a year. On a home that uses 1,000 kWh a month, it cuts the yearly bill by:
| Plan | Bill a year without solar | Savings a year |
|---|---|---|
| R-1Residential (Eastern Massachusetts) | $4,333.32 | $2,675.33 |
If each solar kWh replaces a kWh bought at the full price within the month (monthly net metering). A lower credit for the power you send to the grid, or a solar fee, makes the savings smaller. Use your own kWh, city and system in the solar savings calculator.
Eversource (Massachusetts) rebates
Eversource (Massachusetts) rebates and energy-saving programs: the page lists home energy audit, weatherization, insulation, air sealing, heating and cooling, heat pumps, water heaters, appliances, income-qualified. See also the home energy rebates in Massachusetts. Checked October 22, 2026.
Eversource (Massachusetts) outages, payments and customer service
Official links and phone numbers from the Eversource (Massachusetts) website, checked October 20, 2026. This site is not part of Eversource (Massachusetts): for an outage or a question about your account, use these links.
- Eversource (Massachusetts) outage map
- Report an outage online
- Pay your Eversource (Massachusetts) bill
- Start, stop or move service
If you see a downed power line, stay away from it and call Eversource (Massachusetts) or 911.
Terms on this tariff: Customer charge, Default service, Distributed generation, Distribution charge, Electric vehicle program charge, Energy efficiency charge, Grid modernization charge, Income qualified discount, Net metering, Renewable energy charge, Revenue decoupling, Transition charge, Transmission charge. See the electric bill glossary.
Do you want solar panels or an electric vehicle? The Massachusetts solar calculator and the EV charging from solar calculator on ProSolarCalc estimate the savings and the payback. Also read what changed in the federal solar tax credit in 2026. Sri Murugan Systems also makes ProSolarCalc.
Eversource (Massachusetts) basic service (fixed rate): 17.323¢ per kWh, since August 1, 2026. See the basic service (fixed rate) history since 2022.
Do you have your hourly usage file? Compare Eversource (Massachusetts) plans and supplier offers with your Green Button data.
Why is my Eversource (Massachusetts) bill so high? Check your bill against Eversource (Massachusetts) R-1. See the Eversource (Massachusetts) rate changes. How does Eversource (Massachusetts) compare? See the monthly bill comparison.
What does an appliance cost to run on this tariff? Use the appliance cost tool with Eversource (Massachusetts) R-1.
The rates in this calculator
These values come from the official tariff documents of Eversource (Massachusetts). The Massachusetts Department of Public Utilities approves these tariffs.
| Charge | Rate |
|---|---|
| Customer charge | $10.00 per month |
| Distribution energy charge | 9.837¢ per kWh |
| Item | Rate | Applies to | Schedule |
|---|---|---|---|
| Transition energy charge | −0.077¢ per kWh | All kWh | 2026 Summary of Eastern Massachusetts Electric Rates, Rate R-1 (M.D.P.U. No. 7) |
| Transmission energy charge | 4.673¢ per kWh | All kWh | 2026 Summary of Eastern Massachusetts Electric Rates, Rate R-1 (M.D.P.U. No. 7) |
| Revenue decoupling charge | 0.539¢ per kWh | All kWh | 2026 Summary of Eastern Massachusetts Electric Rates, Rate R-1 (M.D.P.U. No. 7) |
| Distributed solar charge | 0.583¢ per kWh | All kWh | 2026 Summary of Eastern Massachusetts Electric Rates, Rate R-1 (M.D.P.U. No. 7) |
| Net metering recovery surcharge | 0.625¢ per kWh | All kWh | 2026 Summary of Eastern Massachusetts Electric Rates, Rate R-1 (M.D.P.U. No. 7) |
| Energy efficiency charge | Greater Boston, Cambridge or South Shore: 2.292¢ per kWh Cape Cod or Martha's Vineyard: 3.738¢ per kWh |
All kWh | 2026 Summary of Eastern Massachusetts Electric Rates, Rate R-1 (M.D.P.U. No. 7) |
| Renewable energy charge | 0.05¢ per kWh | All kWh | 2026 Summary of Eastern Massachusetts Electric Rates, Rate R-1 (M.D.P.U. No. 7) |
| Electric vehicle program charge | 0.104¢ per kWh | All kWh | 2026 Summary of Eastern Massachusetts Electric Rates, Rate R-1 (M.D.P.U. No. 7) |
| Electric sector modernization plan | 0.001¢ per kWh | All kWh | 2026 Summary of Eastern Massachusetts Electric Rates, Rate R-1 (M.D.P.U. No. 7) |
| Provisional system planning factor | 0.008¢ per kWh | All kWh | 2026 Summary of Eastern Massachusetts Electric Rates, Rate R-1 (M.D.P.U. No. 7) |
| Basic Service (fixed rate) February 1 to July 31, 2026: 15.629¢. August 1, 2026 to January 31, 2027: 17.323¢. Default service only. If you buy electricity from a supplier, the calculator uses the supplier price in place of this charge. |
January: 17.323¢ per kWh February to July: 15.629¢ per kWh August to December: 17.323¢ per kWh |
All kWh | Eversource electric supply rates (Basic Service, residential fixed rate) |
| Low-income discount (Rate R-2) The summary states that a 42 percent discount applies to the total bill amount. The calculator applies it to all the lines, including a supplier price that you type. |
Yes (Rate R-2, 42% discount): -42% | All the lines above | 2026 Summary of Eastern Massachusetts Electric Rates, Rate R-2 (M.D.P.U. No. 8) |
Minimum monthly bill: The customer charge ($10.00).
A bill that crosses a season or rate change: We did not find in the documents that we read how the utility bills a period that crosses a season or rate change. The calculator uses the rates of the billing month (the month of the end date).
Example bills for 1,000 kWh
These examples use 1,000 kWh. Service area: Greater Boston, Cambridge or South Shore. Rate R-2 (low-income discount): No (Rate R-1). Each column uses the rates of the billing month in its heading. The examples do not include taxes.
| Line | All year (November) |
|---|---|
| Customer charge | $10.00 |
| Distribution energy charge | $98.37 |
| Transition energy charge | −$0.77 |
| Transmission energy charge | $46.73 |
| Revenue decoupling charge | $5.39 |
| Distributed solar charge | $5.83 |
| Net metering recovery surcharge | $6.25 |
| Energy efficiency charge | $22.92 |
| Renewable energy charge | $0.50 |
| Electric vehicle program charge | $1.04 |
| Electric sector modernization plan | $0.01 |
| Provisional system planning factor | $0.08 |
| Basic Service (fixed rate) | $173.23 |
| Total before tax | $369.58 |
How the calculator gets the total
- It adds the customer charge. This is a fixed amount for each month.
- It multiplies the kWh by the rate of the distribution energy charge.
- It multiplies the kWh by the rate of each of the 5 riders in the riders table, from the transition energy charge to the net metering recovery surcharge.
- It multiplies the kWh by the rate of the energy efficiency charge.
- It multiplies the kWh by the rate of each of the 4 riders in the riders table, from the renewable energy charge to the provisional system planning factor.
- It multiplies the kWh by the rate of the Basic Service (fixed rate).
- If you select it, it applies the low-income discount (Rate R-2) as a percentage of the total of the lines above.
- If you select a supplier, the calculator multiplies the kWh by the supplier price that you type. This line replaces the Basic Service (fixed rate). The other lines do not change.
The calculator rounds each line to the cent. Each percentage uses the rounded lines.
Items that the calculator does not include
- The Basic Service monthly variable rate (use the supplier option and type the monthly price).
- Rate R-3 (space heating).
- Taxes, if any.
Sources and last check
We read each value from the official documents below. The approval column shows the docket, order or advice number that is printed on each sheet. Last check: October 16, 2026.
| Document | Used for | Effective | Approval |
|---|---|---|---|
| 2026 Summary of Eastern Massachusetts Electric Rates, Rate R-1 (M.D.P.U. No. 7) | Customer charge, distribution energy charge, transition energy charge, transmission energy charge, revenue decoupling charge, distributed solar charge, net metering recovery surcharge, energy efficiency charge, renewable energy charge, electric vehicle program charge, electric sector modernization plan, provisional system planning factor | September 1, 2026 | Summary of Eastern Massachusetts electric rates (approved by the Massachusetts DPU); docket not printed |
| Eversource electric supply rates (Basic Service, residential fixed rate) | Basic Service (fixed rate) | August 1, 2026 to January 31, 2027 | Basic Service rates; Eversource states final rates await regulatory approval |
| 2026 Summary of Eastern Massachusetts Electric Rates, Rate R-2 (M.D.P.U. No. 8) | Low-income discount (Rate R-2) | September 1, 2026 | Summary of Eastern Massachusetts electric rates (approved by the Massachusetts DPU); docket not printed |
Recent rate changes
| Charge | Date | Old value | New value |
|---|---|---|---|
| Basic Service fixed price (supply) The price for February 1 to July 31, 2026 was 15.629¢. The new price is for August 1, 2026 to January 31, 2027. | Meter reads on and after August 1, 2026 | 15.629¢ per kWh | 17.323¢ per kWh |
Calculate what a change does to your bill. See all recent rate changes.
Delivery values read from the text of Eversource's 2026 Summary of Eastern Massachusetts Electric Rates (rates effective September 1, 2026) for all four service areas (Greater Boston, Cambridge, South Shore, Cape Cod and Martha's Vineyard), as linked from the Eversource summary of electric rates page. The R-1 rates are the same in all four areas except the energy efficiency charge on Cape Cod and Martha's Vineyard. The Basic Service fixed rate comes from the Eversource electric supply rates page. Eversource does not publish a typical bill with a line breakdown, so the test bills are hand calculations. Eversource summary of electric rates (Eastern Massachusetts).
Questions about Eversource (Massachusetts) bills
What is the average Eversource (Massachusetts) electric bill?
In 2025, the average Eversource (Massachusetts) home that bought its power from Eversource (Massachusetts) used 474 kWh a month and paid $101.86 a month, 21.5¢ per kWh (EIA-861 data). That is less than the Massachusetts average of $181.08. Your bill depends on your kWh: use the calculator on this page with the kWh from your bill.
What is Basic Service?
Basic Service is the supply that Eversource buys for customers who do not choose a competitive supplier. The fixed rate changes on February 1 and August 1.
I have a competitive supplier. Can I use the calculator?
Yes. Select the supplier option and type the price from your supplier contract. The delivery charges do not change.
Why is the energy efficiency charge different on Cape Cod?
Cape Cod and Martha's Vineyard have their own energy efficiency program, so the charge is different.
Why is my Eversource (Massachusetts) bill so high?
The most common reason is more kWh: heating and air conditioning use much electricity. Charges that change each month: Basic Service (fixed rate). A rate change: Eversource (Massachusetts) changed its rates on August 1, 2026. More days in the billing period also add kWh and daily charges. To see which reason applies to your bill, use the Why is my bill so high tool on this site: type your bill and an earlier bill, and it shows each reason in dollars.
Why is my bill different from the result?
Your bill can include sales tax, a city fee, a discount, a late fee or a different number of days. Type the number of days from your bill. To add tax, type the tax rate from your bill in the tax field. If your tariff has a discount program, select it in the options.
Where do I find my kWh?
Your bill shows the kWh for the billing period. Look for the meter reading section or the usage section.
utilityratecalc.com is not part of NSTAR Electric Company d/b/a Eversource Energy or the Massachusetts Department of Public Utilities. For the official values, use your bill and the tariff of Eversource (Massachusetts).