There are several things you can do to cut back on the energy you use when cooking. When boiling water put a lid on the pot and it will boil faster. Once it is boiling, turn down the heat (water that is lightly boiling is the same temperature). Most foods don’t require the oven to be preheated so don’t waste energy on this. When using the oven for cooking items such as roasts, you can turn it off for the last 15 minutes and the heat left will finish the cooking. All of these can help you to use less energy in the kitchen.