
648 High Efficiency Photovoltaics for a Sustainable World
The model also predicts that technologies with cheaper initial
costs or more cost-reducing potential might also lead to PV
becoming a major pollution-abatement factor. We are witnessing
the development of thin film technologies, probably of lower
initial cost. We also want to present recent efforts to produce a
technological breakthrough, defined in this context as more cost-
reducing potential, that is, a faster learning curve.
Before doing so, I want to appeal to your indulgence if you,
dear reader, feel indignant by my business-oriented approach. I can
assure you that I share the feelings of