cost per watt
In addition, costs for fossil fuels may creep up due to raw material costs, shipping costs, and possibly carbon dioxide taxes. At an installed price of $1.25 per watt, the cost of PV solar is always cheaper than coal. At $2 per watt, it is cheaper after year 40.At $3.00 per watt, it is cheaper about year 80. It is expected that PV solar costs will reach conventional coal parity by 2017. As a result, no new coal plants are expected to be initiated, although some current coal plants will likely be upgraded.t $2 per watt, it is cheaper after year 40. At $3.00 per watt, it is cheaper about year 80. It is expected that PV solar costs will reach conventional coal parity by 2017. As a result, no new coal plants are expected to be initiated, although some current coal plants will likely be upgraded.