Yet you can install smaller versions of windmills near your house and can store energy of electrical devices. The greatest benefit is of course no monthly bill; all you have to bear is onetime expenses of erection. If you think for a second about the greatest source of energy, you might probably end up concluding it's the atomic power. Windows allows light and fresh air to come in and ventilators acts as exhaust for hot air. To spend a comfortable life in home, it is essential that energy flow should be appropriate. Proper energy flow will help you to cut down the cost of electricity bills. Think there is not a proper system for electricity flow, what will happen then? Meanwhile, there are numerous things you can do to reduce your home energy utilization. In 2001, the department of energy in USA has accomplished a survey on the home energy consumption of American households. With this data one can at least get an insight of the electric appliances, which are more energy costing. Now, you can easily decide when you are going to start saving energy by lowering its consumption. You can take a start from space heating because it consumes the major part of electricity. Walls and ceiling insulation in your homes will surely help you to save electricity up to 30% on heating cost which equates to 15% of reduction in total cost of electric bill. In this case, a front loading machine is a better technology then the conventional ones since it saves us 50% on water and 50% on energy. Similarly, dishwashers use the same amount of energy regardless of wash load so it is better to load our dishwashers fully. Most of the heat part of our systems is lost when our basements have leaks and drafts on the walls. An significant concern in passive houses is insulation that acts as a barrier between internal and external temperatures of house. When the wind is too icy, insulated ceilings and walls maintain rooms' temperature and keep it from falling. Similarly during summers, blazing sunlight can't produce intense heat in house.