From the Executive Summary:
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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.
The heating and cooling of air and water are essential parts of our everyday lives, however these services come at a cost, with approximately 44% of energy consumption in the United States directly attributable to heating and cooling. The policy recommendations in this Roadmap target the installation of 300 GWth of SHC capacity by 2050.