Alternative energy technologies will be on display at the second annual, free Energy Fair April 30-May 1 in Montrose, Colo. Vendors will feature tepees, dome houses, earth-sunken homes, devices to computerize energy conservation and energy-efficient lighting and building materials. Workshops will examine bio fuels and hybrid solar systems, among other topics. Events include baking cookies in a solar oven. For information about renting booths contact Christiane Gray-Noble at Western Colorado Congress, P.O. Box 472, Montrose, CO 81402 (303/249-1978).