Case Study: Energy-saving Project Utilizing High-efficiency Heat Pumps for Hot Spring Wastewater Heat Recovery

Utilizing hot spring (drainage) heat! This is a case that simultaneously reduces annual fossil fuel usage and CO2 emissions.

At the fairy tale inn, Yoneya, we have introduced a "high-efficiency heat pump utilizing hot spring wastewater heat" as part of our energy-saving project. At Yoneya, we implemented a project that utilizes hot spring (wastewater) heat, classified as one of the renewable energy sources known as "geothermal heat," to provide heating, cooling, and hot water through a heat pump. This project simultaneously reduces the facility's annual fossil fuel consumption and CO2 emissions. Additionally, we incorporated a recycled lithium-ion battery to establish an independent system for heat and electricity, resulting in an annual reduction of approximately 5.7 million yen in running costs through the hot spring wastewater heat heat pump and the PV generation & V2X battery storage system. 【Case Overview】 ■ Equipment and Scale - Hot spring wastewater compatible water-cooled heat pump 60HP × 1 unit Cooling capacity: 131.6KW, Heating capacity: 178.8KW, Hot water supply capacity: 220.0KW - Hot water storage tank: 7.5m3 - Plate heat exchanger: Heat exchange capacity 173KW - Installation of a visualization monitor for the high-efficiency heat pump system utilizing hot spring wastewater heat *For more details, please refer to the related links or feel free to contact us.

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