JGD ZEB Solution
Aquifer thermal energy storage system contributing to the achievement of 'ZEB' in snowy regions.
Achieving carbon neutrality by 2050 requires the widespread adoption of ZEB (Zero Energy Buildings). Japan Groundwater Development aims to promote ZEB in snowy and cold regions with our high-efficiency aquifer thermal energy storage system, launching the ZEB project in 2019. The demonstration facility was completed in February 2021. The demonstration facility employs a "total thermal supply system using high-efficiency aquifer thermal energy storage" that utilizes the thermal energy of groundwater for heating, cooling, hot water supply, and snow melting in winter. This high-efficiency aquifer thermal energy storage enables even more efficient system operation compared to conventional open-loop groundwater systems. The effect of storing cold energy in winter is particularly significant, allowing for free cooling in summer without operating heat pumps, greatly reducing summer electricity consumption. Snowy and cold regions face challenges with solar power generation during winter, making it difficult to achieve ZEB. However, the significant reduction in energy consumption allows the demonstration facility to realize ZEB. Japan Groundwater Development registered as a ZEB planner in 2021. As a leading company in geothermal and groundwater thermal energy, we are here to assist everyone aiming for ZEB.
