Use the learning curve to calculate the cost for PV in 2018. Assume a learning rate of 0.8 (Double production bring down the cost to 80% of original level). Compare your results with what reported by Bloomberg New Energy Finance at $0.3/watts in 2018. (Hint: you can take the first 100MW as the initial unit: 1GW = 1000MW; Y, = ax®, where Y, is the cost of the Xth unit, a is the cost of initial unit, and X is the accumulated units, and b = log(learning rate)/log2 (Get the formula right (0.5pt]; get the X right (0.5pt); get the b right (0.5pt); calculate he Y, right (0.5pt] ]