The potential for small hydropower in Hokkaido region of Japan remains promising. Due to availability of water and snow throughout the year, it is a great place to start the hydroelectric business.
There are also plans to built a large-scale green hydrogen plant in Tomakomai, Hokkaido with an aim to build this 100MW capacity plant by 2030 [https://www.jfe-eng.co.jp/en/news/2022/20221027.html] To steep forward with such projects, a collection of small hydro could be a makeshift proposition.
While some medium scale project are under construction such as Shintoku hydropower project (23.1MW) expected to be commissioned by 2027, there is still numerous untapped potential in Hokkaido.
Some of the river basin where small hydro can be developed are:
Sorachi River: The Sorachi River is one of the major rivers in Hokkaido, known for its significant water flow. It has the potential for hydropower development, with various sites along its course being assessed for their suitability.
Ishikari River: The Ishikari River is the longest river in Hokkaido and is likely to have been a focus for hydropower potential assessments. Its large water volume and strong flow make it a candidate for hydroelectric projects.
Teshio River: The Teshio River is another important river in Hokkaido, originating from the Hidaka Mountains. It may have been evaluated for its hydroelectric power potential, especially in regions where suitable topography and flow conditions exist.
Tokachi River: The Tokachi River flows through central Hokkaido and is known for its agricultural significance. Parts of the river may have been assessed for hydropower potential, considering factors such as elevation gradients and water flow.
Iwanai River: The Iwanai River, located in southwestern Hokkaido, may have been studied for its suitability for hydropower development, particularly in mountainous areas where there is strong water flow and elevation differences.
Hydropower in existing irrigation canal is also attractive for developing hydroelectric plants. Such facility requires minimum civil cost and zero hurdles for government related permissions. [https://www.pwri.go.jp/eng/about/pr/webmag/wm038/seika.html]
