Now the engineers have produced new designs of windmills that optimally utilize the blowing wind and are powerful enough to support a full household unit. 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. In summer season especially in months of June, July and August, people need cool house during the mid day. This is only possible if you have proper centralized air conditioning system. If your income is below the average then you can't afford this air conditioning system. Low income home energy assistance program facilitate the people in different ways according to the requirements. Another important thing in solar energy is that it will not pollute the environment. It makes you environment very neat and clean that's why solar energy is said to be environment friendly. If we compare solar energy systems and electrical energy generated systems then solar systems are very easy to maintain. Close windows and ventilators during night and make optimum utilization of sunlight during day. With these, apparently small measures, you can save a lot. Use energy savers instead of ordinary electric bulbs. Go for onetime expense and purchase automatic lights that have timers and can even sense the right time to be switched off on their own. They also suggest you what are necessary energy equipments should be in your home, and where you need to replace a new more energy efficient furniture that will ultimately helps you to minimize your bills. However, inspectors visit every home for checking energy flow and consumption and energy rating. But if you want to save cost, you can perform an energy audit yourself. You first have to familiarize yourself with the procedure of energy assessment. Make sure to make a list of spots and ways you discover to improve energy usage. The first and foremost factor in energy spill is air. Any crevices or gaps in walls, window panes, after split units, holes in cupboards or in walls can fairly raise the cooling and heating requirements.