Nearly half of all customer outages in 2025 restored within five minutes, detailed local information provided to towns in annual electric reliability scorecards

BERLIN, Conn. (May 6, 2026) – As part of its commitment to transparency with customers and year-round efforts to deliver safe, reliable power  through critical maintenance and investments that strengthen the resiliency of the electric system, Eversource is providing municipalities with their annual electric reliability scorecards – a town-by-town snapshot of the energy company’s performance in Connecticut. As the scorecards demonstrate, Eversource’s electric reliability has greatly improved and customers have experienced significant benefits due to continued investments in the distribution system and vegetation management over the last 10 years, including:

• Months Between Power Interruptions: System reliability continues to strengthen, with the average customer now experiencing one interruption every 20 months, representing a 15% improvement since 2017.
• Electric System Automation: Continued investments in distribution system automation in outage monitoring systems and field technology – 42% of customers affected by an outage in 2025 were restored within five minutes, significantly reducing disruption and improving customer experience.  
• Avoided Outages: Eversource estimates that more than 1.5 million customer interruptions were avoided across the state in 2025 as a result of investments in distribution system automation.

"These scorecards help our customers understand how outages impact their area while highlighting some of the critical work we do every day to strengthen our electric system and make it more resilient," said Eversource Vice President of Electric Field Operations Don Scacco. "Throughout the year, we use this comprehensive reliability data along with strategic cost-benefit analyses to identify where improvements to the system are needed and make targeted investments - like installing automated technology or conducting enhanced tree trimming - that help to reduce outages and restore power faster for customers. These scorecards are a clear demonstration of how our everyday efforts to bolster the grid make a tangible difference for customers while also providing real insight into the progress that still needs to be made so that we don't leave any customer or community behind. That's why it's essential that we continue investing in the system and building on local successes so customers can continue experiencing the increased reliability they've benefitted from over the last decade, which is fundamental to the success of our communities, economy and state as a whole."

Through insightful local data, the annual electric reliability scorecards break down the primary causes, duration and frequency of power outages in each of the 149 municipalities Eversource serves, allowing communities to see how they compare to the statewide average. The scorecard data also includes information on the energy company's investments in system reliability and resiliency projects locally, showcasing how strategic grid upgrades result in direct benefits for customers - improving quality of life for residents and productivity for businesses.

Eversource works continuously to make critically needed investments in the electric system across the state - replacing aging utility poles, electric lines and other materials with stronger, more modern equipment that can better withstand severe weather, including the installation of automated technology like smart switches.  These automatic switching devices can identify the location of a power outage when it happens, isolate the area on the system, and then re-route power to customers. By ensuring there is more than one path for electricity to reach homes and businesses, smart switches can significantly reduce the duration of outages and the overall number of customers affected. Last year, Eversource estimates that more than 1.5 million customer interruptions were avoided across the state thanks to automated technology. These improvements, in addition to the energy company's comprehensive vegetation management work, have led to increased reliability for customers across Connecticut over the last decade. 

For more information about the company’s commitment to reliability and other major projects, please visit Eversource.com.

Eversource (NYSE: ES), celebrated as a national leader for its commitment to sustainability and corporate citizenship, is named among America’s Most Responsible Companies by Newsweek for 2026 and recognized as the #1 utility on USA Today’s list of America’s Climate Leaders for 2025. Eversource transmits and delivers electricity to 1.3 million customers in 157 cities and towns, provides natural gas to 256,000 customers in 85 communities, and supplies water to approximately 226,000 customers in 60 communities across Connecticut. Eversource harnesses the commitment of more than 10,500 employees across three states to build a single, united company around the mission of safely delivering reliable energy and water with superior customer service. The #1 Energy Efficiency Provider in the Nation, the company is empowering a clean energy future in the Northeast, with nationally recognized energy efficiency solutions and successful programs to integrate new clean energy resources like a first-in-the-nation networked geothermal pilot project, solar, offshore wind, electric vehicles and battery storage, into the electric system. For more information, please visit eversource.com, and follow us on X, Facebook, Instagram, and LinkedIn. For more information on our water services, visit aquarionwater.com.