Poland’s energy minister, Krzysztof Tchorzewski, has confirmed that the government are intent on developing a nuclear power plant, after delays to initial plans.

Warsaw first proposed the facility in 2009 but the Fukushima incident and falling power prices eroded public support.

“We would like to build three units (of the nuclear power plant) in 5-year intervals, with the first one in 2029,” Energy Minister Krzysztof Tchorzewski told reporters on the sidelines of a conference in Krynica Zdroj in the south of Poland.

“Our initial estimates show that one unit will cost $7bn,” he added.

Last year, the ruling Law and Justice party (PiS) revived the plan after it won elections in 2015, and said it aimed to build the plant within ten years.

The minister said that three new coal-fired power plants are being built, but the government would then finish building coal plants altogether.

One of the project’s major obstacles for the nuclear plant has been financing. State-run PGE, Poland’s biggest power firm which was responsible for it, failed to take it to a decisive phase.

In 2010, PGE set up a special vehicle for the project and in 2014 agreed to sell a third of its stake to three state-run companies – KGHM, Enea and Tauron. The energy ministry is now working on a new financing plan, which was supposed to be ready by end of June.

“Our idea is to secure financing of the companies engaged in the project and not financing for the company which will conduct the project. This will help us extend the amortisation period and thus keep the electricity price at a lower level,” he said on Wednesday.

 “After finishing the investments which are now being conducted in big coal-fuelled units, we will not be planning new projects based on coal,” he said.