Editing Tennessee Valley Authority (section)

==== Power stations ====
{{main|List of power stations operated by the Tennessee Valley Authority}}
With a generating capacity of approximately 35 gigawatts (GW), TVA has the sixth highest generation capacity of any utility company in the United States and the third largest [[Nuclear power in the United States|nuclear power]] fleet, with seven units at three [[nuclear power plant|sites]].<ref name=reuters14>{{cite news |url=https://www.reuters.com/article/amp/idUSBREA3S0P420140429 |title=Factbox: Largest U.S. electric companies by megawatts, customers |author=<!--Not stated--> |date=April 29, 2014 |work=Reuters |access-date=January 7, 2019 |archive-date=March 8, 2021 |archive-url=https://web.archive.org/web/20210308123918/https://www.reuters.com/article/amp/idUSBREA3S0P420140429 |url-status=live }}</ref><ref>{{cite news |last=McDermott |first=Jennifer |date=February 10, 2022 |title=Largest US public power company launches new nuclear program |url=https://apnews.com/article/climate-technology-business-lifestyle-kentucky-28d44198e92e4d1aaf6ebcf223c50a19 |work=Associated Press News |access-date=March 18, 2023 |archive-date=March 18, 2023 |archive-url=https://web.archive.org/web/20230318083806/https://apnews.com/article/climate-technology-business-lifestyle-kentucky-28d44198e92e4d1aaf6ebcf223c50a19 |url-status=live }}</ref> In addition, they also operate four [[coal-fired power plant]]s, 29 [[hydroelectricity|hydroelectric]] dams, nine simple-cycle [[natural gas]] [[combustion turbine]] plants, nine [[combined cycle]] gas plants, 1 [[pumped storage]] hydroelectric plant, 1 [[wind power|wind]] energy site, and 14 [[solar energy]] sites.<ref name="powersystem" /> In fiscal year 2020, nuclear generation made up about 41% of TVA's total energy production, natural gas 26%, coal 14%, hydroelectric 13%, and wind and solar 3%.<ref name="powersystem">{{cite web |url=https://www.tva.com/Energy/Our-Power-System |title=Our Power System |date=2018 |website=tva.com |publisher=Tennessee Valley Authority |access-date=January 7, 2019 |archive-date=April 12, 2019 |archive-url=https://web.archive.org/web/20190412041402/https://www.tva.com/Energy/Our-Power-System |url-status=live }}</ref> TVA purchases about 15% of the power it sells from other power producers, which includes power from combined cycle natural gas plants, coal plants, and wind installations, and other renewables.<ref>{{cite web |url=https://www.tva.com/power/wind_purchases.htm |title=TVA: Energy Purchases from Wind Farms |work=TVA |url-status=dead |archive-url=https://web.archive.org/web/20150731021622/https://www.tva.com/power/wind_purchases.htm |archive-date=July 31, 2015}}</ref> The cost of Purchased Power is part of the "Fuel Cost Adjustment" (FCA) charge that is separate from the TVA Rate. In addition, the [[Watts Bar Nuclear Plant]] is the only facility in the country to industrially produce [[tritium]], which is used by the [[National Nuclear Security Administration]] for [[nuclear weapon]]s, where it is used to supercharge and boost the explosive yield of the [[Nuclear weapons of the United States|U.S. nuclear arsenal]].<ref>{{cite news |last=Cathey |first=Ben |date=May 24, 2022 |title=Watts Bar lone source of a nuclear weapon material; TVA increasing production |url=https://www.wvlt.tv/2022/05/24/watts-bar-lone-source-nuclear-weapon-material-tva-increasing-production/ |work=[[WVLT-TV]] |location=Knoxville |access-date= |archive-date=March 18, 2023 |archive-url=https://web.archive.org/web/20230318084551/https://www.wvlt.tv/2022/05/24/watts-bar-lone-source-nuclear-weapon-material-tva-increasing-production/ |url-status=live }}</ref>