AstroPower is in the second phase of a 3-year, phased effort to upgrade its facility to produce 1.22-m{sup 2} Silicon-Film{trademark} PV modules with an output of 170 W{sub p}. Productivity improvements of the Silicon-Film{trademark} machine were accomplished during the second phase. Improvements were made in solar cell performance while decreasing materials consumption, integrating and mechanizing the fabrication process for solar cells, and scaling-up solar cell and module equipment for fabricating larger cells. AstroPower is continuing work on separating out effects due to impurities and effects due to defects. Analytical tools were developed for measuring area-based response based on EBIC and LBIC methods. The Kauffman source for hydrogen ion implantation was used to map out the process space for Silicon-Film{trademark} solar cell improvement. Progress was made on improving short-circuit current. Areas of focus include developing tools to quickly assess material quality; developing a hydrogen implantation process; increasing material quality on large-area, high-throughput wafers; and studying potential processes for improving solar cell power output during cell fabrication. A method to improve current collection in a solar cell after contact formation is under development.