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New Business Development

Renewable Energy

Geothermal Power Generation

Geothermal power is a technology to generate electric power by using hot steam extracted from underground. It has an advantage among other renewable energies because it is not affected by weather and seasons. In Japan, there is third largest geothermal resource in the world, and it is focused as a domestic energy resource.

In a view of exploring and developing underground resources, geothermal power is closely compatible with exploration and development of oil and natural gas. JAPEX has many experiences of geothermal energy researches and explorations in various locations of Japan since 1970s. From 1995 to 2005, JAPEX supplied steam from underground to the power plant in Yamakawa town (currently Ibusuki city) of Kagoshima prefecture. In recent years, we conducted verification test in Musadake area in Shibetsu town of Hokkaido, and joined exploration of geothermal resources in Bandai, Azuma, Adatara area of Fukushima Prefecture as a member of “Fukushima Geothermal Project Team.”

Outline of Geothermal Power

Rains and snows seep underground after falling to the ground, and sometimes it forms geothermal reservoirs filled by high temperature steam and hot water when they are heated by magma in deep underground.

Geothermal power generation is a way to generate electric power using steam by drilling wells in geothermal reservoirs, separate high temperature liquid into steam and hot water using separator, and turning turbines by the steam. The separated hot water will be turned back into underground, and will be heated and used to generate power again.

Outline of Geothermal Power
Outline of Geothermal Power
Steam Flow Test
Steam Flow Test

Solar Power Generation

Solar power generation equipment with capacity over 1,000 kW are called mega-solar power plants. JAPEX is involved in operating two mega-solar power plants in Tomakomai City in Hokkaido. The Tomakomai area has long daylight hours, little snowfall, and low air temperature, all of which are suitable for solar power generation. Therefore, we expect the plants to stably contribute to our business.

A mega-solar plant built on our Hokkaido District Office premises started commercial operation in August 2014. Another power plant of Solar Power Tomakomai Co., Ltd., a company established by the Sumitomo Corporation Group and JAPEX, started commercial operation in November 2014.

  Facility Capacity Site Area
Within the Hokkaido District Office site  1,800kW 38,700m2
Solar Power Tomakomai Co., Ltd.* 13,000kW 300,000m2
*Join under taking with Sumitomo Corporation Group

The mega-solar power plant within the JAPEX Hokkaido District Office premises
The mega-solar power plant within the JAPEX Hokkaido District Office premises