State of the art heating and cooling

This project is an example of the most energy-efficient heating and cooling system available.

It utilises solar and geothermal energy combined with thermal storage and heat pump technology.

The system is installed in a house powered by wind and sun energy.

Using this system, less than 1kW of electrical input is enough to heat and cool the entire 180 square metre house.

Measured COP (Coefficient of Performance) of the system exceeds 5, which means that every 1kWh of electrical energy input provides 5kWh of heating/cooling energy.

4 kWh comes from renewable resources i.e. solar and geothermal, 1kWh from electricity. This performance is 2 times (200%) better than an equivalent air source reverse cycle airconditioning system.

Connected to grid electricity, this system is about 25% cheaper to operate than an equivalent natural gas fired heating system and over 80% cheaper than an equivalent LPG fired system.

When the system operates on wind/solar generated electricity it generates no pollution whatsoever.

Low-temperature collectors capture maximum amount of solar energy with minimal losses. They can be installed on a roof.


Undergrond thermal storage tank can be installed under your lawn.