SPUR's analysis of the cost-effectiveness of various options for local government to reduce carbon emissions has gotten around. Our evaluation showing that in San Francisco, a low-interest loan program to finance home energy efficiency retrofits would be more cost-effective than new incentives for renewable energy installations, was featured in an EPA presentation for local governments on how to use stimulus funding. The presentation is accessible on ICLEI's California Region site. And it looks like such a program is actually being proposed in San Francisco, modeled after the wildly-popular Berkeley FIRST.