Los Angeles County, CA, Solar Map and Green Planning Tool
http://solarmap.lacounty.gov/Report a broken link
This online tool has two main components. It allows users to enter a property address and examine the solar potential on the rooftop of that property, and it offers a project planning module to allow users to design a solar installation for that property. It also serves as an inventory of existing residential and county solar energy projects, providing information on the size, annual output, and annual cost savings of the system, as well as information on the installer. The map also provides links to further information on solar energy.
Los Angeles, CA
2010 Population: 9,818,605
2010 Population Density: 2,419.64/square mile