Pohjavesilämpöpumput

Pohjavesilämpöpumput, also known as groundwater heat pumps, are a type of geothermal heat pump that utilizes the stable temperature of groundwater to provide heating and cooling for buildings. They are considered a highly efficient and sustainable energy source. The system consists of a heat pump unit, a circulation pump, and a well or borehole system that accesses the groundwater.

The fundamental principle of a pohjavesilämpöpumppu is to transfer heat between the groundwater and the building's heating or cooling system. In heating mode, the heat pump extracts heat from the relatively warm groundwater, even during cold weather, and transfers it into the building's heating distribution system. Conversely, in cooling mode, the system can transfer excess heat from the building into the cooler groundwater.

The efficiency of a pohjavesilämpöpumppu is measured by its Coefficient of Performance (COP) for heating and Energy Efficiency Ratio (EER) for cooling. Due to the consistent temperature of groundwater, these systems typically achieve high COP and EER values, leading to significant energy savings compared to traditional heating and cooling methods. The installation requires access to a suitable groundwater source, often achieved through drilling wells or boreholes. Environmental considerations are important, and proper design and installation are crucial to avoid negatively impacting the groundwater source. Pohjavesilämpöpumput are a long-term investment that can reduce operating costs and carbon footprint for homeowners and businesses.