TVA announced Friday that it was seeking comment through May 1 on the plans.
Nuclear Development, LLC in November bid $111 million for the unfinished Bellefonte property in Jackson County.
The development company plans to spend as much as $13 billion to make the nuclear generator operational.
The company — formed by Tennessee businessman Franklin L. Haney and based in Washington, D.C. — has said it had been interested for years in finishing the plant.
TVA began construction of Bellefonte in the 1970's, but the project was never completed.