Interseasonal Heat Transfer (IHT) recycles heat from an Asphalt Solar Collectordown to a ThermalBank in summer.
IHT uses a heat pump to recycle heating in winter without burning fossil fuels.
IHT doubles the Coefficient of Performance of the heat pump by starting from a warm ThermalBank.

"We can charge the earth, without charging you the earth".

See: Renewable Heat Incentive and Demand Side Response