Utility Tariff Analysis · Updated September 2026

TVA's Data Centre Capacity Commitment Charge: What It Means for AI Data Centre Siting in Tennessee

September 18, 2026 6 min read Strategic Crypto Reserve Data Centre Infrastructure

New or expanding data centre loads above 5 MW fall under a new wholesale rate class the TVA Board approved on August 20, 2026: a Capacity Commitment Charge effective October 1, 2026, applying specifically to data centre load above 5 MW — a notably low threshold compared to most other states' 25-100 MW entry points. TVA estimates the new charge will raise overall billing by roughly 10 percent on average, phased over three fiscal years.

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TVA's Data Centre Capacity Commitment Charge — AI data centre infrastructure

TVA's Data Centre Capacity Commitment Charge

TN

Tennessee Valley Authority

TVA Board action, August 20, 2026

Regulatory docket / filing reference

New or expanding data centre loads above 5 MW

Who the tariff applies to

New or expanding data centre loads above 5 MW fall under a new wholesale rate class the TVA Board approved on August 20, 2026: a Capacity Commitment Charge effective October 1, 2026, applying specifically to data centre load above 5 MW — a notably low threshold compared to most other states' 25-100 MW entry points. TVA estimates the new charge will raise overall billing by roughly 10 percent on average, phased over three fiscal years.

Also active in Tennessee: Data centres already account for nearly 20 percent of all TVA industrial-customer power demand, and TVA's Integrated Resource Plan projects the region will need 11 to 32 GW of additional generation capacity by 2040. TVA is responding with a 1,500 MW gas plant at Kingston, a 1,450 MW combined-cycle plant at Cumberland, and a $400 million DOE grant supporting small modular reactor development at the Clinch River site near Oak Ridge.

Named Projects Already Underway

CustomerLocationDetails
FordStanton, TN$5.6 billion vehicle manufacturing facility
Google (via TVA)Jackson County, AL / TN region$1.5 billion data centre investment tied to TVA's broader generation build-out, including new advanced nuclear capacity

Figures compiled from the Edison Electric Institute's "Large Load Projects and Tariffs" (September 2026) member-company summary and public regulatory filings. Confirm current tariff terms directly with Tennessee Valley Authority and the relevant state public utility commission before relying on any figure for a capital decision.

Weighing Tennessee against another state or a Canadian province with a different rate and interconnection picture entirely? Run both sides of the comparison through our licensed AI data centre cost configurator — it applies each jurisdiction's actual power rate, tax treatment and large-load tariff rules to the same seven build configurations.

Model This State on Your Own Site

Every figure above comes from the same power-cost and tariff dataset behind the SCR AI Build Configurator — a licensed, embeddable widget that models seven data centre build configurations against all nine Canadian provinces and all 50 US states plus DC, returning capital expenditure by line item, energy cost, revenue by commercial structure, EBITDA and payback.

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Frequently Asked Questions

What is TVA's Data Centre Capacity Commitment Charge?

New or expanding data centre loads above 5 MW fall under a new wholesale rate class the TVA Board approved on August 20, 2026: a Capacity Commitment Charge effective October 1, 2026, applying specifically to data centre load above 5 MW — a notably low threshold compared to most other states' 25-100 MW entry points. TVA estimates the new charge will raise overall billing by roughly 10 percent on average, phased over three fiscal years.

Why did Tennessee Valley Authority introduce this large-load structure?

To ensure the cost of new generation, transmission and distribution infrastructure built to serve very large customers, chiefly hyperscale data centres, is paid for by those customers rather than spread across the general rate base of residential and small commercial ratepayers.

What large data centre projects are already active in Tennessee?

Data centres already account for nearly 20 percent of all TVA industrial-customer power demand, and TVA's Integrated Resource Plan projects the region will need 11 to 32 GW of additional generation capacity by 2040. TVA is responding with a 1,500 MW gas plant at Kingston, a 1,450 MW combined-cycle plant at Cumberland, and a $400 million DOE grant supporting small modular reactor development at the Clinch River site near Oak Ridge.

Does this tariff replace Tennessee's standard commercial and industrial rates?

No. TVA's Data Centre Capacity Commitment Charge sits above Tennessee Valley Authority's standard commercial and industrial rate schedules and applies specifically to customers that meet or exceed the large-load threshold described above. Smaller commercial and industrial loads continue to be billed under existing rate schedules.

How can I model a Tennessee data centre build against this tariff and other states?

The SCR AI Build Configurator applies Tennessee's power cost, tax treatment and large-load tariff rules alongside all other US states and Canadian provinces, so a Tennessee scenario can be compared line-by-line against any alternative site.