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.
-$0.04a month
Entergy Mississippi, Mississippi
Entergy Mississippi's AWS Madison County data center deal
On bills now Rate matter before the Mississippi Public Service Commission.
No residential dollar figure published yet
The filing does not state a typical-bill impact we can verify. We will add one when the commission staff or the consumer advocate publishes it.
Fileddate not published
Hearingheld or waived
Decisiondecided
On billsdate not published
Amazon Web Services is building large data centers in Madison County and Rankin County, Mississippi, served by Entergy Mississippi. A 2024 Mississippi law let this kind of large customer contract move forward without full Mississippi Public Service Commission review, and it bars the commission from later changing the contract's terms, including how infrastructure costs are shared between Amazon and other ratepayers. Entergy says Amazon is paying for its own substations and a larger share of new generation, but key details of the deal are shielded by nondisclosure agreements.
What it means for your bill: 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.
- Status
- On bills now
- Utility
- Entergy Mississippi
- Commission
- Mississippi Public Service Commission
- Data center linked
- Yes. The filing ties part of the cost or the tariff design to data center load.
- Last checked
- August 29, 2026
Sources
- Entergy Mississippi CEO Fisackerly answers questions on data centers and electricity rates, Mississippi Today, 2025-09-17
- In the Dark: Data Centers Could be Costing Mississippi Households, Earthjustice, 2026-05
- How will Amazon's data centers impact Mississippians' electric bills?, Mississippi Today, 2026-06-09
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