3) Learning Curve Analysis [30 points for undergrad, 35 points for grad]:
The cost of solar photovoltaic technology for PV modules has declined dramatically over the
past 40 years. The learning curve model can be used to describe this cost reduction in relation
with the increasing cumulative installation: the more we install PV modules, the better and
cheaper we can make them.
According to the learning curve for Cadmium Telluride (CdTe) PV modules (red triangles), the
global average module price at cumulative installation of 100. MW is $3.5 per watt (US $2011).
The price reduces to $0.85 per watt (US $2011) when cumulative installation becomes 10,000.
MW.
Note: The data for thin film PV modules is presented in cost, while that for Si wafer PV
modules is presented in price. Correspondingly, the learning curve model for thin film PV
modules uses cost, whereas the learning curve model for Si wafer PV modules uses price.
a) Based on the learning curve model, calculate the progress ratio for CdTe
modules. [15 points]