Celebrating our first 100 years

The story of Entergy Mississippi is the story of modern Mississippi — the people, places and events that sparked a new era of growth and progress for the Magnolia State.

Starting in 1923 with a handful of municipal electric systems, Entergy Mississippi now powers life for more than 461,000 residential, commercial, and industrial customers in 45 counties throughout western Mississippi. Every step of the way, our employees focused on providing safe, reliable, affordable electricity to help our customers thrive and our communities prosper.

Since the earliest days, we have strived to be more than an electricity provider. From our environmental and economic development leadership to our education and poverty-relief programs to our volunteerism and advocacy, we are invested in our communities and are committed to building a better future for all Mississippians.

That was our promise in 1923 as The Mississippi Power and Light Company, and that’s our promise today as Entergy Mississippi. We invite you to explore highlights from our first 100 years through a centennial timeline, stories, photos, videos, and more.

100 years of Entergy in Mississippi

Join us on social media as we celebrate 100 years of powering Mississippi.

Celebrating 100 years of powering Mississippi lives

Insights >

Giving back takes us forward: A look at Entergy Mississippi’s centennial

04/17/2024

In 2023, Entergy Mississippi employees dedicated 18,792 hours at 120 volunteer events within communities across the service area – surpassing the previous year’s record by more than 800 hours.

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MP&L’s purchase of CEPA lays the foundation for Entergy Mississippi

03/28/2024

Investor-owned utilities like MP&L and member-owned utilities like CEPA weren’t friends—they were competitors. The entities were in constant legal negotiations over territory. But MP&L had an advantage.

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Sunflower Solar Plant ensures a ‘bright future’ for Entergy and Mississippi

03/20/2024

Entergy Mississippi turned on Sunflower Solar Station—the largest renewable energy-generating site in the state—in late 2022 and it now produces enough power for 16,000 homes.