compare cost of solar panels
1. The average cost of solar panels has gone from $76.67/watt in 1977 to just $0.698/watt today (the second figure is according to PVinsights, and is even lower than the 2013 projected price in the chart below). Data Source: Bloomberg New Energy Finance (BNEF).Chart Source: Unknown.he average cost of solar panels has gone from $76.67/watt in 1977 to just $0.698/watt today (the second figure is according to PVinsights, and is even lower than the 2013 projected price in the chart below). Data Source: Bloomberg New Energy Finance (BNEF). Chart Source: Unknown.