The amount of electromagnetic energy (solar radiation) incident on the surface of the earth. Basically that means how much sunlight is shining down on us. ...

Flat plate thermal solar collectors have been in use for several decades, but only in relatively small numbers, particularly in Western countries. Evacuated tubes have also been in use for more than 2 ...

Using this energy calculator you may determine how much energy an Courel solar collector will produce each day/month/year. The way you utilize this energy is up to you. You can heat water for showe ...