15- 18% AC annual avg. capacity factor, orders of magnitude better than East Coast installs Huh? It looks to me like the east coast is only ~30% worse tha

15- 18% AC annual avg. capacity factor, orders of magnitude better than East Coast installs Huh? It looks to me like the east coast is only ~30% worse than SF? http://www.c2es.org/docUploads/Solar-1.png http://www.c2es.org/docUploads/Solar-1.png