While PV modules and other hardware costs have dropped significantly over recent years, non-hardware soft costs have also fallen, but not nearly as sharply.
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Lawrence Berkley National Lab's "Tracking the Sun" is an annual report that tracks and analyzes installed prices of solar PV. The report analyzes more than 300,000 individual residential, commercial and utility scale PV systems in 33 states.
With a projected growth rate of 300% in the US over the next four years, distributed solar presents a number of challenges to the current distribution grid. This report from GTM Research details the new power electronics equipment used to address these challenges and provides descriptions of key markets, financing activity in the sector and state level market forecasting.
A new study from the Rocky Mountain Institute and the Georgia Tech Research Institute finds that U.S PV installation labor costs can be decreased from $0.49/watt to $0.29/watt by utilizing installation best practices. Researchers studied installation practices at 26 sites in the U.S. and Germany to determine current practices and future opportunities.