Entergy Mississippi, Mississippi
On bills now Base rate case, docket Docket No. 2024-UN-129 before the Mississippi Public Service Commission.
As published, for a home using 1,000 kWh a month.
Entergy Mississippi's annual formula rate plan adjustment, approved by the Mississippi Public Service Commission on June 17, 2025, kept rates essentially flat for the July 2025 billing cycle, with a typical 1,000 kWh residential bill decreasing by about 4 cents a month. Entergy credits new revenue from large customers moving into its Mississippi service territory, including an Amazon Web Services data center project, with helping offset rising costs. A later company update in August 2026 said the same dynamic eliminated an approximately 4.87 dollar monthly increase that would otherwise have hit July 2026 bills, with a further 41 cent reduction proposed for October 2026.
What it means for your bill: Data center growth on Entergy Mississippi's system is being credited with keeping your bill roughly flat instead of rising, according to the company; Mississippi bills remain about 20 percent below the national average.
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A May 2026 Earthjustice analysis estimated Mississippi households had already paid roughly 38 million dollars for transmission and other infrastructure connected to the AWS project as of that point, though Entergy disputes how that cost should be characterized.