Greentec's Eenergy Storage System stores heat in a paraffin gel, a method so efficient that it only loses one degree of heat every 18 hours. The system has a life expectancy of over 100 years, has no moving parts, no electrics - just a simple flow and return. It can even be installed hidden away under the garage floor.

At Greentec, we add a solar panel to top up the Energy Storage Systems during the day. Once charged, these units can provide hot water in the house and, quite uniquely, heat the house, something no one else in the world has perfected. This could mean the Heat Pump will not even switch on for seven or eight months of the year - so zero running costs.

Without using a solar panel, the Heat Pump can charge the energy storage system at night using cheap rate electricity, again giving very low running costs for constant hot water and heating.

Either of the methods above makes total sense for any new home; the are totally safe, completely clean and with virtually no running costs.