TVA prices data center hookups: about 10% more for power, plus $1.5M per megawatt up front

The Tennessee Valley Authority's board has removed data centers from the utility's manufacturing service rate customer class, a reclassification that raises what they pay for the power they use by approximately 10 percent, and has attached upfront capacity commitment charges of about $1.5 million per megawatt to new data center developments ^[1][2]. That moves interconnection out of the siting conversation and into the capital plan, because the charge is sized to the megawatt before anything is energised.

The mechanics matter more than the headline percentage. The reclassification is phased in for existing customers over the next three fiscal years, while the capacity commitment applies to new developments and is paid over three to five years ^[2][3]. Spread across that window, $1.5 million per megawatt works out to roughly $500,000 per megawatt per year on a three-year schedule and $300,000 on a five-year schedule ^[4]. A 300MW campus carries a $450 million commitment; a gigawatt-scale site carries $1.5 billion ^[5]. TVA CEO Tom Rice said the charge is "really to reflect the incremental capacity that needs to be added to the grid that's not covered in the base rate" ^[6].

The stated reason is arithmetic rather than politics. TVA's Integrated Resource Plan, whose recommendations the board approved alongside the new wholesale rate structure, indicates the service area will require 11GW to 32GW of additional generation capacity to meet growing demand in coming years ^[7][8]. The territory runs from southern Virginia to central Mississippi ^[9]. The board framed the package as protecting consumers, ensuring long-term reliability and strengthening national energy security as electricity demand accelerates ^[10], with the rate structure aimed at keeping residential rates low while continuing to serve data center growth ^[8]. According to DatacenterDynamics' account of the IRP, data centers accounted for roughly 20 percent of all power demand from TVA's industrial customers in early 2026, with that volume expected to double ^[11]; the reported timeframe for the doubling is stated only as "early February," which does not resolve cleanly against the early-2026 baseline ^[12].

TVA has also signed President Trump's voluntary Ratepayer Protection Pledge, whose five obligations require signatories to build, procure or purchase new supply, cover the full cost of new delivery infrastructure, pay agreed rates regardless of actual electricity use, invest in local hiring and training, and work with grid operators on resilience including making backup generation available when supply is tight ^[13][14]. The third of those is the one that shows up in a model: agreed rates regardless of use is take-or-pay, which removes the option value of overbuilding a connection and holding it idle ^[14]. The pledge is part of federal efforts to limit the effect of data center growth on bills, and Ohio, North Carolina and Virginia are among states that have already legislated to similar ends ^[15][16].

What to watch: whether $1.5 million per megawatt reads as a ceiling or a floor once neighbouring utilities file, since a published number is easier to copy than a bespoke contract; whether developers with existing TVA load accelerate energisation ahead of the three-year phase-in; and whether the 10 percent differential holds as a fixed class premium or becomes the starting point for further separation ^[1][2][3].