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Sewage Treatment Plant Begins Digestion Gas Power Generation in Kobe

2018/08/11 15:58
Sousuke Kudou, technical writer
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The power generation facilities at Tamatsu Treatment Plant (source: Kobelco Eco-Solutions)

Kobelco Eco-Solutions Co Ltd has been engaged in "Digestion Gas Power Generation Project at Kobe City Tamatsu Treatment Plant" in cooperation with OGCTS Co Ltd (Osaka City), which is a wholly-owned subsidiary of Osaka Gas Co Ltd.

After a trial operation period, Kobelco started full operation of the digestion gas power plant May 1, 2018.

Kobelco purchases "Kobe Biogas," which is produced by finely refining digestion gas generated in a sewage treatment process, and runs a digestion gas power generation business (privately-established, privately-run business) eligible for the feed-in tariff (FIT) scheme.

Kobelco concluded a basic agreement with Kobe City in June 2017 and had been building the power plant on the premises of the "Tamatsu Treatment Plant" sewage treatment plant in Kobe City, Hyogo Prefecture, Japan.

The output of the power plant is 450kW (25kW digestion gas engine x 18), and the plant is expected to generate about 3,100,000kWh of electricity, which is equivalent to the amount consumed by 900 households, per year. The period of the power generation project is 20 years (until April 30, 2038). The FIT tariff set for the plant is ¥39/kWh.