Report Shows Significant Reductions in Costs of Solar Photovoltaic Systems

摘要

A new study on t he justalled rncosts of solar photovoltaic (PV) power systems in the United States shows that the average cost of these systems declined significantly from 1998 to 2007, but remained relatively flat during the last two years of this period. rnResearchers at the Department of Energy's Lawrence Berkeley National Laboratory, who conducted the study, say the overall decline in the installed cost of solar PV systems is mostly the result of decreases in nonmodule costs, such as the cost of labor, marketing, overhead, inverters and the balance of systems. rn"This suggests that state and local PV deployment programs, which likely have a greater impact on nonmodule costs than on module prices, have been at least somewhat successful in spurring cost reductions," states the report, which was written by Ryan Wiser, Galen Barbose and Carla Peterman of Berkeley Lab's Environmental Energy Technologies Division.