Daiwa House Industry and Daiki Axis announced on June 28 that they have developed a small biogas power generation system for apartment buildings. By combining it with treatment equipment installed in each residential area, it is possible to effectively utilize household waste to provide electricity for lighting in common areas of the building.
Small biogas power generation system for apartment building
(Source: Daiwa Gas Industries)
The system generates biogas (methane gas) through anaerobic fermentation of food waste processed by the processor, which is used as fuel to operate the cogeneration system using electricity and heat. We have developed a new solid-liquid separation device that can effectively collect and concentrate the solid content of food waste, which is the raw material for biogas.
Operational image
(source: Daiwa Gas Industries)
While maintaining the same performance as conventional gasifiers, it is approximately 1/6 the size of conventional gasifiers. In addition, there is no need to perform daily cleaning work like conventional models, which greatly reduces maintenance work, making it easier to use in apartments.
The biogas cogeneration system generates 1.2kW of electricity. A 100-unit apartment building can generate about 8kWh per day. It is expected to meet about 20% of the electricity consumption in common areas and reduce CO2 emissions by about 7.8 tons per year.
In the future, Daiwa House Industry plans to use this technology in apartment buildings under development. The company will also consider installing it in commercial and business facilities developed by the company.
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