抄録
To find the economical merit of Photovoltaic Power Plant (PV) introduced into the electric generation mix as one of the alternative power source, the generation planning simulation analysis including PV up to fiscal year 2030 has been made with use of a probabirity model of PV output. In the probabirity model, it has been taken into account that there is an advantage for the correlation between PV output and the electric load over the considering electric power system, and then the value of capacity for PV as an index about confidence on operating power source (what we call kW effect of PV) has been estimated.
The economic analysis has been extended to the installation of battery, which is expected to raise the kW effect of PV.
