TVA’s Data Center Rate: Talk is Cheap, Until it isn’t

The Tennessee Valley Authority's board has approved a new electricity rate for data centers, but with almost no public detail about how it works. The utility, which serves parts of Tennessee, Alabama, Georgia, and North Carolina, plans to spend $13.5 billion over the next three years to handle rising demand, most of it driven by data centers. Board members voted unanimously to approve the new rate without asking a single question at the meeting, and the only public information is a single slide.

What's known: existing and already-planned data centers get three years to phase into the new rate, the new rate charges data centers about 10% more than the old one, and there's an extra charge for large facilities using more than 5 megawatts of power. What's missing is anything that would let ratepayers judge whether this actually protects them: how TVA defines a "data center," whether there are contract minimums or exit fees if a data center shuts down early, and how TVA calculated the cost of serving these facilities in the first place.

This matters to ordinary customers because if a data center leaves after a few years, the power plants and grid upgrades built to serve it don't disappear — the remaining costs can get spread across everyone else's bills for decades. Without the underlying cost studies made public, there's no way to independently confirm that data centers are truly covering their own costs rather than shifting some of the burden onto residential customers.