Thin-film PV Cells:
Thin-film PV cells are relatively new, but they have the potential to become the most used type of cell (Fies, 2001).
These cells currently have an efficiency of only around 5 percent in the field, but in the lab have efficiencies closer to the crystalline cells (Fies, 2001).
They can be produced through automation which greatly reduces the cost of each cell (Fies, 2001).
The National Center for Photovoltaics predicts that thin-cell systems will have an installed cost of $1.50 by 2020 (Fies, 2001).