"There has to be an economic improvement of the project. The project in its current form is not very suitable," he told reporters after meeting with Hitachi representatives.
The MP of Labor Party said that Hitachi seemed to be inclined to put forward an improved version.
"The management of the corporation also have such thoughts. I hope they will make some proposals," he said.
After Lithuanian voters did not back the Visaginas project in last October's referendum, Hitachi has said that it is not planning to pull out for now as it is waiting for the new government's position. Social Democratic Prime Minister Algirdas Butkevičius expects to give the answer in the coming autumn.
The former government of Conservatives and Liberals expected a new nuclear power facility in Visaginas, in the eastern part of the country, to be built by 2020.
It was estimated a year ago that the Visaginas project could cost up to 5 billion euros at current prices and around 6.8 billion euros including interest, inflation, and changes in the investment's value due to exchange rate fluctuations.
If Lithuania held a 38-percent stake in a new company that would operate the plant, as planned, it would have to contribute around 6.6 billion litas (EUR 1.9b) to the project.