A number of technologies exist to harness energy from renewable sources (solar, wind, waves, etc.) and from other alternatives to fossil fuels (such as biofuels). This lesson plan explores the current state of the art of these technologies, their pro’s and con’s, and their readiness for adoption. These may accompany a science/technology lesson in which students build and evaluate the effectiveness of small devices that are powered by alternative fuels (small solar panels, wind, kinetic energy, etc.).