On a bold, computer-generated animation of a landscape appears a city, power plants, wind turbines, and smaller, decentralized combined heat and power (CHP) plants. The intent is to show how CHP plants can be incorporated into the energy...

With a variety of video clips and diagrams, the narrator acquaints the audience with three sources of alternative energy: the sun, the wind, and water. This is a homemade video created as a homework assignment, but it is well-done and...