Solar PV Cost Trends in California Detailed

Solar photovoltaic costs in California have declined significantly in recent years, according to a new report released by the Lawrence Berkeley National Laboratory. The report’s authors say the study presents the most comprehensive analysis performed to date of grid-connected photovoltaic (PV) cost trends in California, which is by far the largest PV market in the U.S., and is the third largest in the world (behind Japan and Germany).

“Given the size of California’s solar power market, we expect our findings to have broad international interest,” said report co-author Ryan Wiser. The report’s findings are based on a statistical analysis of the installed cost of nearly 19,000 installed or waiting-to-be-installed PV systems in California, totaling 254 MW. These solar systems have been supported by one of the state’s two largest solar rebate programs, overseen by the California Energy Commission (CEC) and the California Public Utilities Commission (CPUC). The report’s findings are particularly important given the recent announcement that California will establish an ambitious new 11-year, $3.2 billion incentive program for customer-sited solar installations. “PV costs have declined substantially, especially among smaller (

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