The woman expected to be Japan’s next prime minister is set to keep nuclear power at the core of the nation’s energy strategy, while reducing emphasis on readily available renewables like solar.

Sanae Takaichi, newly elected leader of Japan’s ruling party, has pushed to accelerate the development of advanced nuclear technologies, like fusion, and has previously called for making the country 100% energy self-sufficient by deploying next-generation reactors.

Shares of nuclear reactor operators rose Monday. Kansai Electric Power, which is currently considering building a new reactor, jumped as much as 5.8%, while Tokyo Electric Power Company — which has long been struggling to restart Japan’s biggest nuclear plant — rose as much as 6.5%.