[en] The various factors which are significant to the capital cost of a nuclear power plant are being reviewed. An example is given of the calculation of the power generation cost for a 600 MW nuclear power plant, which was assumed to become operational in 1985. The calculation was based on the contributions from capital cost, fuel cost and the cost for operation and maintenance. A similar calculation was carried out for a coal-generation and an oil-generation plant of the same size (600 MW) which are becoming operational in the same year (1985). The generation cost for the Saguling Hydro Project, which will be completed in 1982, is also given. This 1982 figure has been subsequently extrapolated to 1985 in order to include the effect of escalation. The result of the study could be considered as a confirmation of the Nuclear Power Planning Study for Java Island, which has been carried out at the IAEA Head-quarters in Vienna in the beginning of 1975. (author)