Post-Standard: Nine companies want to build renewable energy projects in Syracuse and Onondaga County that would be powered by wind, solar, biomass, fuel cells and even sewage sludge. The companies submitted their proposals to a joint city-county team that is looking into sources of cheap, alternative energy that could power government offices, schools, libraries and other municipal buildings. Syracuse Mayor Matt Driscoll – visiting Washington, D.C., this week for a climate leadership summit …