A good time to install solar modules is when you reroof.
Seattle Department of Planning and Development (DPD) Public Resource Center
Permit research, publications, self-help computers
20th floor of Seattle Municipal Tower
700 Fifth Avenue, Seattle 206.684.8467 http://www.seattle.gov/dpd/prc
The local chapter of the American Solar Energy Society, providing events, newsletter and links posted on the web http://www.solarwashington.org