Sounds good, right up until the lights go off

Getting California Schools Off The Grid - MarketWatch

SACRAMENTO, Calif., Dec 09, 2008 (BUSINESS WIRE) -- Today, California's State & Consumer Services Agency (SCSA) announced the release of Grid Neutral: Electrical Independence for California Schools and Community Colleges, a step-by-step guide to help California schools and community colleges cut energy costs through on-site electricity generation. The guidebook is the first state-backed, comprehensive program for schools to use to create campuses that generate as much electrical energy as they consume and can be viewed here.