Method  This paper studied the economics of nuclear power plant in Fujian Province, calculated the electricity cost of nuclear power under different annual utilization hours and the electricity cost out of permitted annual utilization hours. Based on the nuclear power related policies of Fujian Province and the joint operation mode of “Nuclear Power Plant–Pumped Storage Power Plant”, a preliminary discussion on joint venture economy was carried out.

  Result  The calculation results show that when the utilization hours are higher than a certain value, the margin of nuclear power generating capacity is low.

  Conclusion  Under certain conditions the financial viability of both parties after “nuclear power plant–pumped storage power plant” combined operation is improved.