Solar is weak. <1kW/m2. A small gasoline engine provides ~100kW of mechanical energy. That mismatch is what requires some magical conversion and storage to conn

Solar is weak. <1kW/m2. A small gasoline engine provides ~100kW of mechanical energy. That mismatch is what requires some magical conversion and storage to connect. Also, the semi-conductor used in photovoltaic solar cells required quantum theory to invent. The IC was “inventable” based on thermodynamics cycles etc. known in the late nineteenth century