Sept. 11 (Bloomberg) -- Marubeni Corp. began a geothermal survey of Daisetsuzan National Park on the northern island of Hokkaido that will continue through February in the hopes Japan will discover more clean-energy sources.
The Tokyo-based trading company will study the geology of the area with more tests to follow once officials find enough evidence of geothermal resources, Marubeni said today in a statement.
Last year, Japan revised rules for geothermal power projects in national parks where more than 80 percent of the country’s resources are to try to increase energy supplies.
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