SHORT COMMUNICATION: Price/efficiency correlations for 2004 photovoltaic modules

The claim is often made that efficiency is a key factor in determining the marketability of photovoltaic products. If this is the case, a strong correlation between the price of modules and their efficiency might be expected. This relationship is investigated using module pricing data that have recently become available. Conclusions are that there is little correlation between module price and efficiency in this data set and that some thin‐film modules currently appear to attract a pricing premium. Copyright © 2004 John Wiley & Sons, Ltd.