The Tennessee Valley Authority (TVA) is funded through a combination of revenue sources. TVA's power services are primarily financed by the sale of electricity generated from its hydroelectric, nuclear, coal, and natural gas plants. These power sales generate revenue that covers operating costs, capital investments, and debt repayment. The TVA also receives income from other business ventures, such as transmission system usage fees and supplemental power sales. Additionally, the TVA issues bonds and borrows money from the U.S. Treasury to fund its operations and infrastructure projects. The TVA does not receive taxpayer appropriations, and it operates on a self-sustaining basis through its business activities, ensuring that the cost burden is not placed on taxpayers.