Match the pot size to the burner. Use reflector pans under burners and keep the pans clean for maximum heat reflection. Preheating the oven is important for baked goods, but for many foods you can skip the preheating. For some foods you can turn off an electric oven 10 to 15 minutes before the cooking time is complete and the cooking will continue without the use of energy. Defrost frozen foods in the refrigerator before cooking them.
Frozen items require more energy to cook.
Check that the oven door gasket forms a tight seal, and replace the gasket if necessary. Unplug any electric appliance that has a timer, clock, memory or remote when you are not using it. Turn off your stove's exhaust fan as soon as it's not needed anymore. Kitchen lighting also offers power-saving possibilities. They're more expensive, but they use 75 percent less electricity than conventional bulbs.