Hungary’s incoming government says it is likely to review the financing and implementation of the long-delayed Paks nuclear power station expansion project, but has suggested nuclear will main a key component of the energy mix.

The nominee for economy and energy affairs minister, István Kapitány, told parliament on 11 May that the €12.5bn ($14.7bn) project needs a “transparent nuclear strategy” and a full reassessment of its costs and contractual terms, various news outlets reported.

Under a 2014 agreement, Russia’s state nuclear corporation Rosatom is building two VVER-1200 units next to the existing four-unit Paks station on the Danube River, about 100 km south of Budapest.

Hungary’s former prime minister Viktor Orban and Russia’s president Vladimir Putin agreed on the project, known as Paks II, without a tender, but it has gone through delays and permitting issues.