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Home / Solar Power / Latest Report Shows Cost of Going Solar has Dropped Significantly for 5 Years

The Lawrence Berkeley National Lab today released the eighth installment of the Tracking the Sun report series, which is funded by the U.S. Department of Energy SunShot Initiative. The report shows that the installed price of distributed solar photovoltaic (PV) power systems in the United States continues to fall precipitously, especially in the last 5 years.

The report provides a comprehensive summary of installed price trends for residential and non-residential photovoltaic (PV) systems installed in the United States through year-end 2014, with preliminary data for the first half of 2015. Among other key findings, the report shows that U.S. distributed solar prices have continued to rapidly fall, declining by 10 to 20 percent in 2014, with similar trends persisting into 2015.

The latest edition of Tracking the Sun, along with an accompanying summary slide deck and data file, are available at

A webinar summarizing key findings from the report will be held next Wednesday, August 19th at 11:00 am Pacific Time. Register for the webinar here.

Please visit for a Berkeley Lab press release that discusses some of the report’s key findings.


By John Fitzgerald Weaver

John Fitzgerald Weaver is a solar developer; known digitally as the 'Commercial Solar Guy.' As a project developer and installer, he’s sold and managed 50+ solar projects, valued over $25 million, ranging in size from 5kW to 1500kW. He’s been involved in many aspects of the solar supply chain –- as a company founder, developer, project manager, manufacturer, permit runner, salesman, contractor and financier. In his free time he tries to get away and clear his mind by climbing mountains, or more regularly by enjoying an IPA or scotch, and really loves the strange connection between politics, energy, finance, and environment in the energy world.

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