Solstin’s Law

Solstin’s Law: PV power doubles every five years. In other words, Solar costs drop about 15% a year.


Forecast: PVs Falling 15% Annually

The cost-decline of solar PhotoVoltaic (PV) has surprised most, even the optimists within the solar industry. Economy of scale and oversupply has been factors, but there is another underlying trend. Solar power is free. Conversion, distribution and storage are the costs. Since 1955, the cost of PV conversion has been trending downward, year-after-year, with no …