Finally found it....
Seattle IS attempting to provide "green" energy, but for now, Seattle City Light's web site says they are buying offsets & importing wind generated electricity plyus maximizing hydro generated electric. (keeping the problem upstream or pushing it downstream)
http://www.ci.seattle.wa.us/light/conserve/globalwarming/
A mini-version of Kyoto, where one can buy "credits" without actually having to do anything.
arg........plyus=plus
See this goes right along with our mandated green public buildings that cost more to maintain and keep people less comfortable.
If they were REALLY concerned about so-called "greenhouse gasses" they would use nuclear power.
It produces none of those...