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Revenue (Notes) | 9 Months Ended
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Jun. 30, 2025
Revenue from Contract with Customer [Abstract] |
Revenue from Contract with Customer [Text Block] | Revenue Revenue from Sales of Electricity TVA's revenue from contracts with customers is primarily derived from the generation and sale of electricity to its customers and is included in Revenue from sales of electricity on the Consolidated Statements of Operations. Electricity is sold primarily to LPCs for distribution to their end-use customers. In addition, TVA sells electricity to directly served industrial companies, federal agencies, and others.
LPC sales | Approximately 91 percent and 92 percent of TVA's Revenue from sales of electricity for the three and nine months ended June 30, 2025, and the three and nine months ended June 30, 2024, respectively, was from LPCs, which then distribute the power to their customers using their own distribution systems. Power is delivered to each LPC at delivery points within the LPC's service territory. TVA recognizes revenue when the customer takes possession of the power at the delivery point. For power sales, the performance obligation to deliver power is satisfied in a series over time because the sales of electricity over the term of the customer contract are a series of distinct goods that are substantially the same and have the same pattern of transfer to the customer. TVA has no continuing performance obligations subsequent to delivery. Using the output method for revenue recognition provides a faithful depiction of the transfer of electricity as customers obtain control of the power and benefit from its use at delivery. Additionally, TVA has an enforceable right to consideration for energy delivered at any discrete point in time and will recognize revenue at an amount that reflects the consideration to which TVA is entitled for the energy delivered. The amount of revenue is based on contractual prices approved by the TVA Board. Customers are invoiced monthly for power delivered as measured by meters located at the delivery points. The net transaction price is offset by certain credits available to customers that are known at the time of billing. Credits are designed to achieve objectives of the TVA Act and include items such as hydro preference credits for residential customers of LPCs, economic development credits to promote growth in the Tennessee Valley, wholesale bill credits to maintain long-term partnerships with LPCs, and demand response credits allowing TVA to reduce industrial customer usage in periods of peak demand to balance system demand. Payments are typically due within approximately one month of invoice issuance.
Directly served customers | Directly served customers, including industrial customers, federal agencies, and other customers, take power for their own consumption. Similar to LPCs, power is delivered to a delivery point, at which time the customer takes possession and TVA recognizes revenue. For all power sales, the performance obligation to deliver power is satisfied in a series over time since the sales of electricity over the term of the customer contract are a series of distinct goods that are substantially the same and have the same pattern of transfer to the customer. TVA has no continuing performance obligations subsequent to delivery. Using the output method for revenue recognition provides a faithful depiction of the transfer of electricity as customers obtain control of the power and benefit from its use at delivery. Additionally, TVA has an enforceable right to consideration for energy delivered at any discrete point in time and will recognize revenue at an amount that reflects the consideration to which TVA is entitled for the energy delivered. The amount of revenue is based on contractual prices approved by the TVA Board. Customers are invoiced monthly for power delivered as measured by meters located at the delivery points. The net transaction price is offset by certain credits available to customers that are known at the time of billing. Examples of credits include items such as economic development credits to promote growth in the Tennessee Valley and demand response credits allowing TVA to reduce industrial customer usage in periods of peak demand to balance system demand. Payments are typically due within approximately one month of invoice issuance.
Other Revenue Other revenue consists primarily of wheeling and network transmission charges, sales of excess steam that is a by-product of power production, delivery point charges for interconnection points between TVA and the customer, Renewable Energy Certificate sales, and certain other ancillary goods or services. Disaggregated Revenues During the three and nine months ended June 30, 2025, revenues generated from TVA's electricity sales were $3.3 billion and $9.6 billion, respectively, and accounted for virtually all of TVA's revenues. TVA's operating revenues by state for the three and nine months ended June 30, 2025 and 2024, are detailed in the table below:
Operating Revenues By State (in millions)
| Three Months Ended June 30 |  | Nine Months Ended June 30
| 2025 |  | 2024 |  | 2025 |  | 2024
Alabama | $ | 477 |  |  | $ | 409 |  |  | $ | 1,428 |  |  | $ | 1,274 |
Georgia | 74 |  |  | 65 |  |  | 242 |  |  | 214 |
Kentucky | 209 |  |  | 179 |  |  | 605 |  |  | 557 |
Mississippi | 310 |  |  | 277 |  |  | 886 |  |  | 816 |
North Carolina | 18 |  |  | 19 |  |  | 67 |  |  | 70 |
Tennessee | 2,161 |  |  | 1,869 |  |  | 6,345 |  |  | 5,685 |
Virginia | 11 |  |  | 10 |  |  | 39 |  |  | 35 |
Subtotal | 3,260 |  |  | 2,828 |  |  | 9,612 |  |  | 8,651 |
Off-system sales | 2 |  |  | 2 |  |  | 4 |  |  | 6 |
Revenue capitalized during pre-commercial plant operations(1) | (1) |  |  | — |  |  | (3) |  |  | (3) |
Revenue from sales of electricity | 3,261 |  |  | 2,830 |  |  | 9,613 |  |  | 8,654 |
Other revenue | 45 |  |  | 49 |  |  | 145 |  |  | 144 |
Total operating revenues | $ | 3,306 |  |  | $ | 2,879 |  |  | $ | 9,758 |  |  | $ | 8,798 |
Note (1) Represents revenue capitalized during pre-commercial operations at Johnsonville Aeroderivative CT Units 21-30 in the three and nine months ended June 30, 2025 and Paradise CT Units 5-7 in the nine months ended June 30, 2024, all of which was recognized in the three months ended December 31, 2023. TVA's operating revenues by customer type for the three and nine months ended June 30, 2025 and 2024, are detailed in the table below:
Operating Revenues by Customer Type (in millions)
| Three Months Ended June 30 |  | Nine Months Ended June 30
| 2025 |  | 2024 |  | 2025 |  | 2024
Revenue from sales of electricity |  |  |  |  |  |  |
Local power companies | $ | 2,967 |  |  | $ | 2,596 |  |  | $ | 8,782 |  |  | $ | 7,925 |
Industries directly served | 259 |  |  | 205 |  |  | 734 |  |  | 642 |
Federal agencies and other | 36 |  |  | 29 |  |  | 100 |  |  | 90 |
Revenue capitalized during pre-commercial plant operations(1) | (1) |  |  | — |  |  | (3) |  |  | (3) |
Revenue from sales of electricity | 3,261 |  |  | 2,830 |  |  | 9,613 |  |  | 8,654 |
Other revenue | 45 |  |  | 49 |  |  | 145 |  |  | 144 |
Total operating revenues | $ | 3,306 |  |  | $ | 2,879 |  |  | $ | 9,758 |  |  | $ | 8,798 |
Note (1) Represents revenue capitalized during pre-commercial operations at Johnsonville Aeroderivative CT Units 21-30 in the three and nine months ended June 30, 2025 and Paradise CT Units 5-7 in the nine months ended June 30, 2024, all of which was recognized in the three months ended December 31, 2023. TVA and LPCs continue to work together to meet the changing needs of consumers around the Tennessee Valley. In 2019, the TVA Board approved a partnership agreement option that better aligns the length of LPC power contracts with TVA's long-term commitments. Under the partnership arrangement, the LPC power contracts automatically renew each year and have a 20-year termination notice. The partnership arrangements can be terminated under certain circumstances, including TVA’s failure to limit rate increases to no more than 10 percent during any consecutive five-fiscal-year period, as more specifically described in the agreements. Participating LPCs receive benefits including a 3.1 percent wholesale bill credit in exchange for their long-term commitment, which enables TVA to recover its long-term financial commitments over a commensurate period. The total wholesale bill credits to LPCs participating in the Partnership Agreement were $53 million and $51 million for the three months ended June 30, 2025 and 2024, respectively. The total wholesale bill credits to LPCs participating in the Partnership Agreement were $164 million and $152 million for the nine months ended June 30, 2025 and 2024, respectively. In 2020, TVA provided participating LPCs a flexibility option, named Generation Flexibility, that allows them to locally generate or purchase up to approximately five percent of their average total hourly energy sales over a certain time period in order to meet their individual customers' needs. Revised flexibility agreements were made available to LPCs in 2023 which permit projects to be located anywhere in TVA's service area, either connected to the LPC distribution system or TVA's transmission system, and make it easier for LPCs to partner in projects. As of June 30, 2025, 148 LPCs had signed the Partnership Agreement with TVA, and 107 LPCs had signed a Power Supply Flexibility Agreement. The number of LPCs by contract arrangement, the revenues derived from such arrangements for the three and nine months ended June 30, 2025, and the percentage those revenues comprised of TVA's total operating revenues for the same period, are summarized in the tables below:
TVA Local Power Company Contracts At or for the Three Months Ended June 30, 2025
Contract Arrangements(1) |  | Number of LPCs |  | Revenue from Sales of Electricity to LPCs (in millions) |  | Percentage of Total Operating Revenues
20-year termination notice |  | 148 |  |  | $ | 2,541 |  |  | 76.9 | %
5-year termination notice |  | 5 |  |  | 426 |  |  | 12.9 | %
Total |  | 153 |  |  | $ | 2,967 |  |  | 89.8 | %
Note (1) Ordinarily, the LPCs and TVA have the same termination notice period; however, in a contract with one of the LPCs with a five-year termination notice, TVA has a 10-year termination notice (which becomes a five-year termination notice if TVA loses its discretionary wholesale rate-setting authority). Certain LPCs have five-year termination notices or a shorter period if any act of Congress, court decision, or regulatory change requires or permits that election.
TVA Local Power Company Contracts At or for the Nine Months Ended June 30, 2025
Contract Arrangements(1) |  | Number of LPCs |  | Revenue from Sales of Electricity to LPCs (in millions) |  | Percentage of Total Operating Revenues
20-year termination notice |  | 148 |  |  | $ | 7,612 |  |  | 78.0 | %
5-year termination notice |  | 5 |  |  | 1,170 |  |  | 12.0 | %
Total |  | 153 |  |  | $ | 8,782 |  |  | 90.0 | %
Note (1) Ordinarily, the LPCs and TVA have the same termination notice period; however, in a contract with one of the LPCs with a five-year termination notice, TVA has a 10-year termination notice (which becomes a five-year termination notice if TVA loses its discretionary wholesale rate-setting authority). Certain LPCs have five-year termination notices or a shorter period if any act of Congress, court decision, or regulatory change requires or permits that election. TVA's two largest LPCs — Memphis Light, Gas and Water Division ("MLGW") and Nashville Electric Service ("NES") — have contracts with a five-year and a 20-year termination notice period, respectively. Sales to MLGW and NES each accounted for eight percent of TVA's total operating revenues for both the nine months ended June 30, 2025 and the nine months ended June 30, 2024. Contract Balances Contract assets represent an entity's right to consideration in exchange for goods and services that the entity has transferred to customers. TVA did not have any material contract assets at June 30, 2025. Contract liabilities represent an entity's obligations to transfer goods or services to customers for which the entity has received consideration (or an amount of consideration is due) from the customers. These contract liabilities are primarily related to upfront consideration received prior to the satisfaction of the performance obligation. See Economic Development Incentives below and Note 11 — Other Long-Term Liabilities — Long-Term Deferred Revenue. Economic Development Incentives. Under certain economic development programs, TVA offers incentives to existing and potential power customers in targeted business sectors that make multi-year commitments to invest in the Tennessee Valley. TVA records those incentives as reductions of revenue. Incentives recorded as a reduction to revenue were $80 million for both the three months ended June 30, 2025 and 2024. Incentives recorded as a reduction to revenue were $248 million and $233 million for the nine months ended June 30, 2025 and 2024, respectively. Incentives that have been approved but have not been paid are recorded in Accounts payable and accrued liabilities and Other long-term liabilities on the Consolidated Balance Sheets. At June 30, 2025, and September 30, 2024, the outstanding unpaid incentives were $197 million and $187 million, respectively. Incentives that have been paid out may be subject to claw back if the customer fails to meet certain program requirements.

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-9 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-15 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-12 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-13 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Topic 606 -Publisher FASB -URI https://asc.fasb.org/606/tableOfContent + Details
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