What is the ecological impact from temperature extraction?
A system can not drop the temperature of the soil below freezing. There is no adverse impact. Definitions 1. Co-efficient of Performance: CoP is the measure of performance that illustrates how much electrical energy is required for each unit of thermal energy. A CoP of 3.0 means that 1,000 watts of power is consumed by the compressor, pump and blower, to deliver 3,000 watts of heat energy to the building. The 2 kilowatts of net energy is the solar energy that is transferred into the building. In Canada, the federal Energy Efficiency Act states that closed-loop units must have a CoP of at least 2.8 and open-loop units must have a CoP of at least 3.2. 2. Sizing: A heating system must meet 100% of a buildings heat loss, but an EE system uses an electric resistance heating element to supplement the solar energy transferred from the ground. A residential unit that is sized to 70% of building load will provide 90% of the heat, with the supplemental electric heater providing the other 10%. 3.
