September 17, 2025

Japan solar plant: JAPEX’s Impressive 13 MW Project

JAPEX has announced plans to construct a 13 MW solar power plant on company-owned land in the Takaoka area of Tomakomai City, Hokkaido. The plant is expected to begin commercial operation in April 2027. This aligns with Japan’s broader push towards renewable energy, as seen in initiatives like the $1.5 billion investment in perovskite solar technology detailed in this article.

JAPEX’s Expanding Japan Solar Plant Presence in Hokkaido

While JAPEX has previously developed solar projects, this 13 MW plant marks a significant expansion of their solar footprint in Hokkaido. The generated electricity will be sold through Power Purchase Agreements (PPAs) with local businesses and fed into the utility grid under Japan’s feed-in tariff (FIT) scheme. This approach helps support local businesses and contributes to the stability of the regional power grid. The project also demonstrates JAPEX’s commitment to repurposing land, as the plant will be built on a site formerly used for storing construction materials. Approximately 20,000 solar panels will be installed across the 17-hectare area.

First Solar Japan will supply the panels, utilizing First Solar’s Series 7 thin-film PV modules. These modules are known for their performance in varied conditions, including hot and humid climates and low-light environments, maximizing energy generation throughout the day. This technology is particularly relevant given Japan’s climate and could influence future solar projects in the region, as highlighted in this article about Japan’s solar panel investments.

JAPEX’s Commitment to Renewable Energy and the Japan Solar Plant

JAPEX is actively diversifying its energy portfolio with investments in various renewable energy projects, including solar, wind, and geothermal initiatives. The company has been operating a 12 MW solar power plant in Soma, Fukushima Prefecture, since 2021. This ongoing project provides valuable experience and insights for the development of the new Tomakomai plant.

JAPEX’s commitment to renewable energy dates back to 2011 with a solar project also in Tomakomai City. Since then, the company has expanded its renewable energy portfolio with projects in Akita Prefecture, Soma City, and Niigata Prefecture. Beyond solar, JAPEX is engaged in wind power projects, including the Northern Akita Offshore Wind Farm Project, and plans to develop a 10 MW onshore wind power plant in the Takaoka area of Tomakomai City.

JAPEX aims to achieve a renewable energy capacity of 560 MW by 2030, with a strong emphasis on wind power. This ambitious target reflects the company’s dedication to contributing to Japan’s clean energy transition.

JAPEX’s Geothermal Energy History Alongside Japan Solar Plant Development

JAPEX has a long history in geothermal energy development, dating back to 1968, with participation in several power plant projects. The company is currently involved in multiple geothermal development projects and research studies, collaborating with regional governments and companies across Japan, specifically in Akita, Iwate, and Yamagata prefectures. These projects have an estimated total capacity of 160 MW, further solidifying JAPEX’s commitment to a diverse renewable energy future.

The Tomakomai City solar project represents a key component of JAPEX’s broader strategy to expand its renewable energy portfolio. The company is also exploring additional projects, including a geothermal power plant in Yuzawa, Akita Prefecture, and further solar development in Soma, Fukushima Prefecture. This multifaceted approach highlights JAPEX’s commitment to a sustainable energy future for Japan.


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