Entergy has published the seven conditions it says will govern its future power contracts with data centre operators, and attached a number to the deals already signed. The utility puts customer savings from those agreements at approximately $5 billion for 2.3 million customers across Arkansas, Louisiana and Mississippi. It calls the framework Fair Share Plus.
Three of the principles are commercial. A service agreement must run long enough to recover the cost of the infrastructure built to serve it, with any assets left at the end either cost effective for everyone or paid for by the data centre. Collateral must be liquid, meaning cash deposits or letters of credit, and backed by a guarantee from the company that owns the data centre subsidiary. Rates must cover the incremental cost to serve during the contract term plus an allocation of the existing grid the customer leans on.
Another three cover operations. New load has to be timed so it arrives alongside new generation rather than ahead of it. The customer must install equipment to protect the grid from power quality problems that a load of that size can cause. Contracts should hold operators to the clean energy commitments they advertise, nuclear included. The seventh principle keeps the state commission in the room, reviewing whether the costs incurred to serve a site were prudently spent.
Existing agreements already carry prepayment requirements, multi-year terms, credit and collateral requirements and early termination penalties, so the framework reads less as a new regime than as a public floor under the next negotiation.
The savings figure repays a slower read, and Entergy does more than most to make that possible by publishing its method. The number compares expected data centre revenue over the initial contract term against the incremental cost of serving that customer, counting generation and transmission investment and an allocation of embedded costs where no new investment is required. That is avoided cost measured against a counterfactual, projected over 20 years. It is not a cut to anyone's current bill. Averaged flat across 2.3 million customers and two decades, $5 billion works out at roughly $109 per customer per year, and the release makes no claim that the benefit lands evenly.
Lining up the state totals raises a separate question. Mississippi is given as more than $2 billion, Arkansas as up to $1.7 billion, Louisiana as approximately $800 million. Those come to about $4.5 billion against a headline of approximately $5 billion, which means around half a billion dollars is riding on a Mississippi figure the release never states precisely. An exact Mississippi number, or the year-by-year profile behind each state total, would close the gap.
Underneath the totals sit specific commitments. In Arkansas, Google has agreed to support construction of a 600 megawatt solar and 350 megawatt battery facility supplying all Entergy Arkansas customers. In Louisiana, Entergy says the Meta agreement alone cuts storm recovery and grid resilience costs by 10 percent. About $47 billion of new investment is attributed to the projects the release lists, which it says are not the only commercial agreements involved.
For an operator scoping a site in Entergy territory, the seven principles amount to a published term sheet covering tenure, collateral, load timing and equipment obligations, which is more than most utilities put in writing before negotiations start. Whether the $5 billion materialises is a question for three public service commissions over 20 years, but the contract conditions are what a developer meets first.
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