Avangrid (AGR) 8-K AVANGRID Reports Second Quarter 2019 Earnings Results

Exhibit 99.3

AVANGRID Declares Quarterly Dividend

(Orange, CT – July 16, 2019) TodayAVANGRID, Inc. (NYSE:AGR) announced that its Board of Directors declared a quarterly dividend of $0.44 per share on its Common Stock. This dividend is payable October 1, 2019 to shareholders of record at the close of business on September 6, 2019.

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About AVANGRID:AVANGRID, Inc. (NYSE: AGR) is a leading, sustainable energy company with approximately $33 billion in assets and operations in 24 U.S. states. With headquarters in Orange, Connecticut, AVANGRID has two primary lines of business: Avangrid Networks and Avangrid Renewables. Avangrid Networks owns eight electric and natural gas utilities, serving more than 3.2 million customers in New York and New England. Avangrid Renewables owns and operates a portfolio of renewable energy generation facilities the United States. AVANGRID employs

approximately 6,500 people. AVANGRID supports the U.N.’s Sustainable Development Goals and was named among the World’s Most Ethical Companies in 2019 by the Ethisphere Institute. For more information, visitwww.avangrid.com.

Investor Contact:

• Patricia Cosgel

patricia.cosgel@avangrid.com

203.499.2624