2016 Volume 12 Issue 2 Pages 86-96
Objective. In recent years, increasing attention has been paid to the supply of electricity by distributed power and a power interchange operation. The installed capacity of renewable energy systems, which utilize non-exhaustible energy resources, tends to increase with distributed generation. However, the stability of the supply-demand balance has become an issue because the amount of power generated by renewable energy and the power demand vary by location and time. When introducing mass renewable energy systems, it is necessary to stabilize the supply-demand balance to reduce variations in the power interchange. This study evaluated the contribution of power supplied from renewable energy systems, leveraging the power interchange to reduce dependence on the system power supply in the Kinki region of Japan. The power demand from the residential and business sectors and the power generated by renewable energy were estimated using economic statistics, social statistics, and weather observations from the 500 m geographic information system (GIS) grid.
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