There are many variations of concentrating solar. There’s the tower, there’s the curved mirror with the tube of oil, and there’s the magnifying glass with a sma

There are many variations of concentrating solar. There’s the tower, there’s the curved mirror with the tube of oil, and there’s the magnifying glass with a small, exotic solar cell that can handle 10 Suns’ worth of light. None of them work on overcast days because they rely on parallel rays of light.