Thanks to Laboratory Equipment for the heads up. The National Renewable Energy Laboratory has a new “community driven” Web site showing photovoltaic installations across the US. Open PV has over 67,000 installations catalogued. (Well, newish — it started accepting data in November.) You can access it at http://openpv.nrel.gov/.
There’s a “Market Mapper” that lets you look at a map of the US and see a variety of statistics about installations, average cost per watt, etc. But if you just want to see what’s going on in your neighborhood, you can do a zip code search and see what’s been installed in your area. The vast majority of installations in this database — over 51000 — are in California, so you might have to do a bit of searching if you don’t use a California zip code.
I did a search of 90210 and found 30 installations. Results are presented in a table that shows things like date of installation, cost per watt, and system cost, but if you click the little green button next to the result you’ll get a few more details like a map of the location, incentive amount, and county. If you want to do more extensive searches, go to the search page and you can search by kW size and/or date completed, in addition to location.