The sun provides solar energy by consuming hydrogen in nuclear fusion reactions and radiating energy.
The solar panels receive the incoming solar radiation. The collectors used in these panels consist of flat plate copper tube absorbers enclosed in an insulated box with a glass cover.
Because this system is exposed to freezing temperatures during winter, a glycol antifreeze mixture is circulated from the panels to a heat exchanger.
The water from the pool is circulated through the other side of the heat exchanger to transfer the heat to the pool, so there is no transfer of the glycol into the pool.
Control sensors monitor the temperature at the collectors and in the pool to ensure the maximum amount of heat is transferred from collectors to the swimming pool. Meters measure the inlet and return temperature and flow rate and calculates the energy added to the water.
A natural gas boiler provides supplemental heat to the system. This boiler will provide all heat when the sun is not available.
When the sun is shining, the swimming pool is heated from a renewable energy source. A thermal cover helps preserve the heat in the pool.