JEA, located in Jacksonville, Florida, is the eighth-largest community-owned electric utility company in the United States and the largest in Florida. As of 2022, JEA served more than 1 million Northeast Florida residents with electric, water, sewer and reclaimed water services. JEA also provides some customers with methane gas sales, and access to dark fiber. In addition, JEA works with the City of Jacksonville to maintain its streetlight system. Besides Jacksonville (Duval County), JEA also serves customers in Clay, Nassau and St. Johns counties.

Jacksonville's water and sewer systems have been operated by the city since 1880.

In 1895, the first electric power station, Main Street Power Plant came online, providing night-time lighting for the first time to downtown.

In 1943, the Baldwin Interconnector came online, providing backup power to nearby Naval Air Station Jacksonville and Camp Blanding.

In 1950, the Southside Generating Station came online, and is hooked up to the city's electric grid.

On September 9, 1964, Hurricane Dora devastated 95 percent of the city's electric grid.

On August 8, 1967, as part of the consolidation of the City of Jacksonville and Duval County governments, the City of Jacksonville Electric Department became an independent body, renamed Jacksonville Electric Authority, operating in accordance with Article 21 of the Jacksonville Code of Ordinance.

According to Article 21 of the Jacksonville City Charter,