Observed arrival · 2026-10-03
UNRG Solar Data maps rooftop solar by county
A county-level dataset showing estimated rooftop solar counts, percentages, ranges, and address-list links for surveyed areas.
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- People researching residential solar by county
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- Each county entry includes a 95% range and a utility-count comparison; address lists are described as drawing on permits and photo finds.
Field notes
The homepage currently covers Maricopa and Pima counties, with each entry linking to a report and address-list options. The site says its lists draw on permits and photo finds, while excluding homeowner names and county aerial photos. The displayed headline estimates do not match the figures in the utility-count comparisons, and the page does not explain whether they use different definitions.
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