UI Prepared for Potential Thunderstorms and Prolonged Heat Through the Holiday Weekend

ORANGE, Conn. - July 1, 2026 - United Illuminating (UI), a subsidiary of Avangrid, Inc., is closely monitoring weather conditions and prepared to respond as Connecticut enters a period of hot and humid weather expected to continue into the holiday weekend.

While isolated thunderstorms capable of producing gusty winds are possible today and at times, throughout the coming days, the primary weather concern will be a prolonged stretch of dangerous heat and humidity that may increase the risk of heat-related illness and lead to higher electricity use as customers work to stay cool.

"Our teams are monitoring weather conditions and are prepared to respond should isolated thunderstorms or the extended heat impact our electric system," said Adam Gaber, UI spokesperson. "We encourage customers to take a few simple steps now to prepare for the days ahead, including reviewing emergency supplies, charging electronic devices, staying hydrated and, in the coming days, checking on family members, neighbors and others who may be more vulnerable to extreme heat."

UI is closely monitoring system conditions throughout the week to enhance its ability to quickly respond should outages occur. The company also encourages customers to prepare for the prolonged heat by staying hydrated, limiting strenuous outdoor activities during the hottest part of each day, spending time in air-conditioned locations whenever possible and checking frequently on older adults, young children and others who may be especially at risk to extreme temperatures.

To help customers prepare for potential power outages, UI has compiled a storm checklist available at >Storm Checklist - UI. Customers can stay up to date on current outages with UI's Outage Map, with information on estimated restoration times.

If you experience a power outage, you can report:

• Online or call 800.722.5584(800.7.CALL.UI).
• Through our Mobile App, available from the App Store and Google Play.
• >By texting OUT to 78418. Registration is required.

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About UI: The United Illuminating Company (UI) is a subsidiary of Avangrid, Inc. Established in 1899, UI operates approximately 3,600 miles of electric distribution lines and 138 miles of transmission lines. It serves approximately 341,000 customers in the greater New Haven and Bridgeport areas of Connecticut. UI received the Edison Electric Institute's Emergency Recovery Award in 2019 and 2021. For more information, visit www.uinet.com.

About Avangrid: Avangrid, Inc. is a leading energy company in the United States working to meet the growing demand for energy for homes and businesses across the nation through service, innovation, and continued investments by expanding grid infrastructure and energy generation projects. Avangrid has offices in Connecticut, New York, Massachusetts, Maine, and Oregon, including operations in 25 states with approximately $50 billion in assets, and has two primary lines of business: networks and power. Through its networks business, Avangrid owns and operates seven electric and natural gas utilities, serving more than 3.4 million customers in New York and New England. Through its power generation business, Avangrid operates more than 80 energy generation facilities across the United States, and the company has a capacity of over 11 GW capable of powering over 3.1 million customers. Avangrid employs approximately 8,500 people and has been recognized by JUST Capital as one of the JUST 100 companies - a ranking of America's best corporate citizens - in 2025 for the fifth consecutive year. The company was named among the World's Most Ethical Companies in 2025 for the seventh consecutive year by the Ethisphere Institute. Avangrid is a member of the group of companies controlled by Iberdrola, S.A. For more information, visit www.avangrid.com.

Media Contact:
Adam Gaber
[email protected]
(917) 224-6176