Eversource Energy Overview and Information

Eversource Energy is one of the largest energy companies in the United States, serving over 4 million electric customers and 2 million gas customers.

Eversource Energy was formed in 2015 by the merger of Northeast Utilities and NStar Electric and Gas.

The company operates in three states: Connecticut, Massachusetts, and New Hampshire.

Eversource Energy's headquarters is located in Berlin, Connecticut.

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Eversource Energy has a complex corporate structure that has evolved over time. The company was formed through a series of mergers, including the former Boston Edison Company, Cambridge Electric Light Company, Commonwealth Electric Company, Commonwealth Gas, and Cambridge Gas Company.

Today, Eversource operates under the Eversource name, having rebranded from its previous subsidiaries. These subsidiaries include Connecticut Light and Power (CL&P), Public Service Company of New Hampshire (PSNH), Western Massachusetts Electric Company (WMECO), Yankee Gas Services Company (Yankee Gas), NSTAR Electric, and NSTAR Gas.

Eversource serves over 1.2 million customers in Connecticut, making it the state's largest electric utility. The company also serves over 500,000 customers in New Hampshire and 1.7 million customers across Massachusetts.

Eversource's shareholders have seen significant returns on their investments, with a cumulative total return of 89 percent between 2010 and 2015. This includes quarterly dividends and the change in the market price per share.

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Eversource Energy offers a range of services and rates to its customers. You can expect to pay tens of millions of dollars more a year as a Massachusetts electric customer, thanks to a rate hike approved by the Massachusetts Department of Public Utilities in 2017.

The utility company has also been criticized for making new charges "as confusing as possible", according to Massachusetts Rep. Thomas Golden. He accused Eversource of purposefully making the new charges difficult to understand.

Eversource's rates for Eastern Massachusetts are subject to change, but as of October 3, 2025, prices range from XX to XX cents per kWh, depending on your ZIP code.

To get a cheaper Eversource Energy electric rate, simply enter your ZIP code to display the most accurate electricity rates for your area. Then, browse available plans and use our search filter to narrow your results.

You can choose between a fixed or variable rate product, depending on your risk tolerance. Fixed rates don't change during the term of the agreement, but may come with an early cancellation fee.

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Variable rates can fluctuate monthly, so be prepared for your electric bill to double or triple in a single billing period if demand spikes. Most variable rate plans do not include an early cancellation fee.

The basic service rate, also known as the price to compare, is the rate Eversource Energy (NSTAR) offers to customers who don't switch to an alternate electric supplier. This rate is generally not competitive and changes twice per year.

Note: The price to compare rate is not competitive and changes twice per year.

Eversource Energy provides basic service for supply to customers who don't switch to an alternate electric supplier, with a basic service rate often referred to as the price to compare.

This rate changes twice a year and is generally not competitive, making it a good benchmark for Massachusetts residents shopping for a competitive electric supplier.

If a supplier offers a supply rate lower than the price to compare, customers can save money by switching.

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Eversource Energy has been accused of price manipulation, with an environmental group claiming they drove up electric and gas rates by buying up shipment capacity on the Algonquin pipeline system without using it.

A class-action lawsuit was filed against Eversource and Avangrid, claiming they caused overcharges of $3.6 billion in a years-long scheme affecting six states and 14.7 million people.

Business owners in the Eversource territory can find a great energy rate with the help of Choose Energy, which provides customizable commercial energy solutions with several Eversource suppliers.

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The price to compare, or PTC, is a benchmark price or rate that a utility provides customers with to compare different electricity plans. It's like a reference point to help you make informed decisions.

Eversource Energy's current price to compare for residential customers is 17.2 cents per kilowatt-hour (kWh), valid through July 31, 2024. This is the rate you'll pay if you don't switch to a different electricity plan.

The price to compare is not always the best option, as it's often not competitive. In fact, Eversource Energy's basic service rate is generally not competitive and changes twice per year.

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Eversource Energy rates for Eastern Massachusetts are subject to change, so it's essential to check the most up-to-date rates for your area. You can do this by entering your ZIP code on the Eversource Energy website, which will display the current rates in cents per kWh.

As of October 3, 2025, the rates for ZIP Code 02114 are available, but keep in mind that rates may have changed since this date. To get the most accurate information, it's best to enter your own ZIP code.

If you're looking to compare prices, you can use the basic service rate, also known as the price to compare, as a benchmark. This rate is not competitive and changes twice per year, but it can help you determine if a supplier is offering a better deal.

As a business owner, finding the right energy rate can be a challenge. Eversource Energy provides a territory for businesses to operate within, and Choose Energy can help you find a great energy rate by providing customizable commercial energy solutions with several Eversource suppliers.

You can learn more by filling out our business energy form or calling the number on your screen to speak with one of our energy experts for help in creating a customized commercial energy plan.

Power outages can be a real hassle, especially if you're in the middle of an important business call or meeting. Eversource Energy (NSTAR) is responsible for fixing power outages in its service area.

If you experience a power outage, you'll need to contact the utility company to report the issue. Eversource Energy (NSTAR) Customer Contact Number is 1-800-340-9822.

Bad weather and falling tree branches are the most common reasons for power outages. It's always a good idea to stay informed about weather conditions in your area to prepare for potential outages.

If you've changed electric suppliers and experience a power outage, you'll still need to contact Eversource Energy (NSTAR) to report the issue.

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Eversource Energy prioritizes customer experience by providing a variety of payment options, including online, phone, and in-person payments.

The company offers a mobile app that allows customers to manage their accounts, view their energy usage, and pay their bills on the go.

Eversource Energy's customer service team is available 24/7 to assist with any questions or concerns customers may have.

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Eversource Energy has been involved in several controversies and regulatory issues. The company was accused of price manipulation in 2017, where it was alleged that they drove up electric and gas rates by buying up shipment capacity on the Algonquin pipeline system without using it.

This behavior was seen as a way for the company to gain a commercial benefit by increasing wholesale prices for natural gas during peak winter heating periods. Representatives for Eversource denied any wrongdoing.

A class-action lawsuit was filed against Eversource and Avangrid, claiming that the two companies caused overcharges of $3.6 billion to electricity consumers in six states affecting 14.7 million people.

The lawsuit alleged that Eversource and Avangrid's "unique monopoly" spanning from 2013 to 2016 led to the overcharges. However, the case was thrown out of court in 2019 due to the natural gas prices being federally regulated.

The Federal Energy Regulatory Commission (FERC) investigated the price manipulation allegations and found no evidence of anticompetitive withholding of natural gas pipeline capacity on the Algonquin Gas Transmission system.

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Here are some key dates related to the controversies:

Eversource Energy has made significant strides in renewable energy, and it's exciting to see the impact it's having. Eversource Energy owns and manages several renewable power generation sources, including solar arrays.

One notable example is the solar array at their Energy Park facility in Manchester, NH, which is one of the largest in New Hampshire and offsets 100,000 pounds of carbon dioxide emissions each year. This is a significant reduction in emissions, and it's great to see companies taking initiative to reduce their carbon footprint.

The Silver Lake Solar facility in Pittsfield, MA, is another notable example. This 1.8 MW solar facility occupies eight acres and has received two awards from the Solar Electric Power Association and the Environmental Business Council of New England.

Let's take a look at some of the key statistics from Eversource Energy's renewable energy projects:

Eversource Energy has been working on several major projects to improve the reliability of the power grid in southwest Connecticut.

The company constructed a $350 million 345 kilovolt Bethel–Norwalk transmission line through the western part of the state.

In 2009, an upgrade to the 69-mile, 345 kilovolt Middletown-Norwalk transmission line was completed at a cost of $900 million.

The Greater Springfield Reliability Project, a $795 million project, was energized in 2013 to address reliability issues with the Springfield, MA area's 115 kV transmission system.

The project added a new 345 kV corridor between Massachusetts and Connecticut, creating a stronger interface between the two states.

A new 115 kV transmission substation in East Springfield was built as part of the project, replacing the Fairmont 115 kV transmission substation in Chicopee.

The project also involved rebuilding 115 kV lines along the transmission corridor between South Agawam and Ludlow to increase their capacities.

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Eversource has taken action to support the use of electric vehicles by installing over 400 electric vehicle charging stations in Massachusetts.

The company spent $45 million over five years to install these charging stations as part of its Grid Modernization plan.

Eversource has made significant changes to its power source, shifting from coal to natural gas, wind, hydroelectricity, and solar power.

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