One of the biggest energy hogs in the kitchen is the oven, and choosing the right appliances to cook with can make a big difference for energy savings. A halogen countertop “oven” uses special lights that create radiant heat that can roast, bake and do whatever an oven can do. When you cook something in a halogen appliance instead of a conventional oven, you reduce your energy usage by 75 percent. It also cooks food about 50 percent faster than a traditional oven. A combination of both time and energy savings makes it a good investment for the kitchen.