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Rooftop solar panels could soon cut utility profits by 15% or more

Lucas Mearian | Sept. 29, 2014
Rooftop installations could account for 10 percent of the market by 2022.

"This marked the fourth consecutive year of significant price reductions for residential and commercial systems in the U.S.," Galen Barbose, one of the report's authors, wrote. "Within the first six months of 2014, prices for such PV systems in many of the largest state markets have continued on their downward trajectory."

The Berkeley Lab cost-tracking report highlighted a wide variability in PV system pricing, detailing the installed price differences that exist across states and across various types of PV applications and system configurations. For example, about 20% of all residential systems installed in 2013 were priced at or below $3.90 per watt, while an equal proportion was above $5.60 per watt.


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