About 60% of your total energy usage comes from heating and cooling; another 20% results from heating your water, and the other 20% comes from appliances and lighting.
You can save energy costs by following some of these familiar steps.
A. Turn off the lights when leaving the room, especially incandescent bulbs. The bulbs are only about 20% efficient. The rest of the energy is given off as heat. On the other hand, converting to modern compact florescent bulbs, which are lower in wattage and longer lasting, will conserve more energy.