as in graph the cost of crystalline silicon told is very high but now a days cost is arround 28 to 30 rupees per watt for polycrystalline and 30 to 35 rupees per watt for mono crystalline that is less that 1 dollar per watt so i think diagram needs to improve. if any one have any doubt regarding this prices kindly visit NREL USA , www.nrel.gov/docs/fy19osti/72134.pdf
as in graph the cost of crystalline silicon told is very high but now a days cost is arround 28 to 30 rupees per watt for polycrystalline and 30 to 35 rupees per watt for mono crystalline that is less that 1 dollar per watt so i think diagram needs to improve. if any one have any doubt regarding this prices kindly visit NREL USA , www.nrel.gov/docs/fy19osti/72134.pdf