The minister said the power producer, which is 80% owned by the state, could be listed on the stock market in 2017.
Romania pledged to list a 15% stake in Hidroelectrica under its agreement with the International Monetary Fund, but the move was postponed as the company entered insolvency procedures in early 2014.
Hidroelectrica posted a record profit of RON725 million in the first half of the year, 42% higher than in the same period of 2014.