National Grid Massachusetts (Massachusetts Electric) commercial electricity rates

• Average commercial price, 202525.66¢per kWh, customers on bundled service
• vs Massachusetts average+11%state commercial average 23.10¢
• Commercial customers164,4672nd largest of 20 in Massachusetts
• Average use1,678 kWha month per commercial customer
• Average bill$431a month per commercial customer
• Since 2015+51%from 17.00¢ per kWh
• Outages91 mina year per customer · US average 124

National Grid Massachusetts (Massachusetts Electric) is an investor-owned utility serving 12 counties in Massachusetts. Among the 20 Massachusetts utilities in EIA’s 2025 sales data with 500 or more commercial customers, it is the 2nd largest, with about 39% of the state’s commercial customers. EIA lists it as Massachusetts Electric Co.

National Grid Massachusetts commercial electricity prices, 2015 to 2025

In 2015 National Grid Massachusetts billed its commercial customers on bundled service an average of 17.00¢ per kWh. In 2025 the figure was 25.66¢, so it rose 51% over 10 years. The average for all commercial customers in Massachusetts rose 46% over the same period. The latest year, 2025, is the highest of the 11 on record here. Between 2024 and 2025 it rose 11%.

Average use and average bill are the utility’s commercial sales and revenue divided by its commercial customers and by twelve. The bill is an all-in figure: energy, delivery, demand and fixed charges together. A few very large customers pull both averages up, so most businesses use and pay less than the average.

National Grid Massachusetts customers who buy their energy from a supplier

In 2025, 89% of the commercial kWh National Grid Massachusetts delivered went to customers buying their energy from a competitive supplier, and 71% of its commercial customers did so. The share by kWh is the larger because the businesses that shop tend to be the larger ones. National Grid Massachusetts bills those customers for delivery only, at an average of 10.77¢ per kWh, which is the part of a bill that no supplier can change.

Residential, commercial and industrial prices at National Grid Massachusetts

In 2025 the average commercial price at National Grid Massachusetts was 24% below the residential figure and 12% above the industrial one. Larger customers take power at a higher voltage and use it more steadily, so at most utilities the average falls from residential to commercial to industrial. Which class an account falls in is the utility’s decision, and the line between commercial and industrial is drawn differently from one utility to the next.

The customers who buy their energy from a supplier are counted separately, and National Grid Massachusetts bills them for delivery alone:

How National Grid Massachusetts’ commercial rates are set

National Grid Massachusetts is investor-owned, so its rates are set in cases before the Massachusetts Department of Public Utilities and published in a tariff, which is a public document. A commercial account is billed on a rate schedule, chosen by the size of the account and the voltage it takes power at, and a schedule usually combines a fixed monthly charge, a charge per kWh and, above a certain size, a demand charge on the highest rate of draw in the month. The schedule code is printed on the bill. What a business in Massachusetts can and cannot choose is on the Massachusetts page.

Meters, time-varying rates and net metering at National Grid Massachusetts

EIA counts 171,997 commercial meters at National Grid Massachusetts in 2025, and 3,514 of them (2%) are advanced meters (AMI), which record use at least hourly and report it to the utility at least daily. Of the rest, 147,956 are automated-reading (AMR) meters, which send a reading to the utility for billing only, and 20,527 are standard meters. An advanced meter is what makes interval data possible, and interval data is what shows when a building’s peak demand happens.

EIA records 2,753 commercial net-metered generating systems at National Grid Massachusetts in 2025, with 724 MW of capacity between them: about 17 for every 1,000 commercial customers. Net metering credits a customer for power its own system sends to the grid; the terms are in the utility’s tariff.

How reliable is National Grid Massachusetts’ electric service?

National Grid Massachusetts customers went without power for an average of 91 minutes in 2025, excluding major storms, with about 0.84 interruptions per customer. The average across U.S. utilities reporting the same way is 124 minutes. With major storms counted the figure was 133 minutes. These are averages over every customer of every class, so they describe the system and not any one street.

Where National Grid Massachusetts serves

EIA records National Grid Massachusetts serving customers in 12 Massachusetts counties: Barnstable, Berkshire, Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex, Norfolk, Plymouth, Suffolk, Worcester. A county can be shared between utilities, so this does not tell you who serves a given address. The utility that serves an address is the one named on its bill.

EIA lists ISO New England as its balancing authority. ISO New England is one of the organised wholesale markets, which run the grid and the wholesale power market across their area.

Other utilities in Massachusetts

The average each billed its commercial customers in 2025. The Massachusetts page has the state’s own figures and every utility with 500 or more commercial customers.

• Eversource Massachusetts (17.69¢)

What these figures can and cannot tell you

• They are averages over every commercial customer. A utility whose commercial customers are mostly large averages fewer cents per kWh than one serving mostly small shops, so a lower figure can mean larger customers and not a lower rate.
• They are not a rate schedule. None of these figures is a charge printed in National Grid Massachusetts’ tariff, and nothing here works out a bill from one. The tariff index lists the utilities whose filed schedules are quoted on this site.
• They are annual and final. EIA publishes utility figures once a year. The Massachusetts page carries the state’s trailing 12 months, which is more recent and still preliminary.
• Bundled and delivery-only are different customers. The two prices describe different parts of the bill and are never added together or averaged.

For one building, the cost estimator gives a range by building type, size and state, and price by utility sets every utility side by side. Commercial vs residential vs industrial compares the classes in every state.

Data: every year of these figures, for this utility and every other with a page, is in one CSV, free to use with credit to the U.S. Energy Information Administration and this site. To cite this page: National Grid Massachusetts commercial electricity rates, CommercialElectricityRates.com, from EIA Form EIA-861 final 2025 data.

Common questions about National Grid Massachusetts

What is the average commercial electricity rate at National Grid Massachusetts?

National Grid Massachusetts billed its commercial customers on bundled service in Massachusetts an average of 25.66¢ per kWh in 2025, according to the U.S. Energy Information Administration. That is 11% above the Massachusetts commercial average of 23.10¢. It is the utility’s commercial revenue divided by its commercial sales, so it describes the whole class and is not the rate on any one schedule.

How much is the average commercial electric bill at National Grid Massachusetts?

About $431 a month in 2025, on average use of about 1,678 kWh a month. That is National Grid Massachusetts’ commercial revenue divided by its 47,026 commercial customers. A few very large accounts pull the average up, so most businesses pay less than this.

Have National Grid Massachusetts’ commercial electricity rates gone up?

The average National Grid Massachusetts billed commercial customers rose 51% between 2015 and 2025, from 17.00¢ to 25.66¢ per kWh. The Massachusetts commercial average rose 46% over the same period.

How reliable is National Grid Massachusetts’ electric service?

National Grid Massachusetts customers averaged 91 minutes without power in 2025, excluding major storms, against a 124-minute average for U.S. utilities reporting the same way (EIA).

Does National Grid Massachusetts use smart meters for businesses?

EIA counts 3,514 advanced (AMI) meters among National Grid Massachusetts’ 171,997 commercial meters in 2025, which is 2%. An advanced meter records use at least hourly, which is what makes interval data and time-varying rates possible.

Is this the rate my business will pay National Grid Massachusetts?

No. It is an average over every commercial customer, from a corner shop to a campus. What one business pays depends on its rate schedule, how much it uses and how hard it draws at its peak. The schedule code is printed on the bill, and the schedule itself is in National Grid Massachusetts’ tariff.