Monday, July 23, 2018

Japan: New Tariff Makes it Profitable to Build Geothermal Power Plants with an Output Below 7.5 MW

Unlocking Geothermal Potential in Japan Through Small-scale Generation (IRENA)

In the wake of the Fukushima nuclear disaster the Japanese government introduced new policies to accelerate geothermal power plant deployment. These included streamlined procedures for the approval of projects in national parks and, crucially, a new higher feed-in tariff (FIT) for small geothermal plants to more than one-and-a-half times of that of larger facilities. This made it profitable to build plants with an output below 7.5 MW, which do not require environmental impact assessments and can be built in around half the time of larger plants.

These policies have not been unopposed. More than half of the geothermal sources are located around national parks or near the country’s 27,000 thermal springs that onsen rely on for their hot water supply. Critics believe that geothermal projects will adversely affect water supply or quality, or that the plants will have a detrimental impact on hot spring resorts or national parks.

As a result, an important role of the small-scale geothermal plants built since 2012 has been to work closely with onsen operators, hotels and inns to prove that small-scale geothermal power generation can coexist with tourism facilities, without negatively impacting Japan’s natural beauty.

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