The earliest known application of solar energy design arose during the 15th century B.C. by the Egyptian ruler Amenkotep III, who “supposedly possessed ‘sounding statues’ that operated when the air in their base pedestals expanded after exposure to sunlight”.

The earliest known application of solar energy design arose during the 15th century B.C. by the Egyptian ruler Amenkotep III, who “supposedly possessed ‘sounding statues’ that operated when the air in their base pedestals expanded after exposure to sunlight”.