The utility brought in $6.6 billion in operating revenue on nearly 82 billion kilowatt-hours of electricity sales through March 31st.
That's about 2% more from last year, with electricity sales rising roughly 1% driven in part by growth in data processing and hosting services.
Net income reached $658 million up $125 million over the same period last fiscal year.
TVA says it's in the midst of one of the largest capital investment programs in its history, including 3,770 megawatts of new generation under construction, nuclear license extensions at all three sites, and continued upgrades to ensure long-term reliability.
TVA officials say a combination of strong financial performance and a diverse energy mix that includes nuclear, natural gas, hydroelectric, coal and renewables has allowed the utility to maintain reliability while keeping rates among the lowest in the nation.
The federally owned utility serves more than 10 million people across seven states.
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