The Community For Alternative Sources of Energy (CASE) is an Illinois non-profit organization with pending tax-exempt status that encourages the use of alternative energy sources in public buildings, focusing primarily on Chicago Public Schools. It currently consists mainly of students from Northside College Preparatory High School in Chicago, which is the test site for the organizations prototype implementation of solar-thermal cells, windmills, and geothermal energy water heaters. They also are involved in a side project to distribute fluorescent light bulbs to families of students at Northside.

In 2006, the City of Chicago promised to purchase all of the solar-thermal cells necessary to heat about 50% of the water at Northside (mainly the pool), on the condition that CASE provide funds for the installation of said cells.

The Community For Alternative Sources of Energ