The Campus Center for Appropriate Technology (CCAT) is a student-run sustainability organization located at Humboldt State University in Arcata, California. CCAT has partnered with Appropedia to bring over 30 years of student-based open-source appropriate technology solutions to the world.
The organization is housed in a 70-year-old house and contains scores of resource-saving devices such as solar roof panels, a gravity-based rainwater collection system to water the gardens, and an electrical generator which runs on biodiesel made from cooking oil from the school's cafeteria.
References
Campus Center for Appropriate Technology Wikipedia(Text) CC BY-SA