In past, there were no instruments to measure the consumption of energy, so they could not be able to control energy utilization. It results in high amount of electricity bills. It is worth mentioning here that resident must know how much energy he is consuming a day. Today, home energy rating systems are available that cater the need to measure energy consumption. 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. Thermostat of the refrigerator should be reduced as it utilizes about 20% of the total household electric use. You can save about 90% of power consumption by washing the clothes with cold water instead of hot water. Germs on the clothes are eradicated through detergents rather than hot water. Also, try to make less use of washing machines as much as possible. Windmills have been in use for many decades and used to provide energy to grinding mills. The safest and most economical way of energy conservation. 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. You are considered eligible for this tax credit if your house is already outfitted with these products. Your house should by your principal residence. If you have applied for improvement tax credits, you could be decreasing your income tax amount by receiving certain amount of money to each of specific energy-efficiency improvement items installed or going to be installed in your house. Eventually, it cuts down your house electric bill. 4. Reduce the thermostat to save a lot of money. 1 C equates the 5% of electric bill savings. So, always keep your thermostat at low temperature. You can keep it further low during sleeping or when you are out of home for saving more money. 68 F is an ideal temperature of thermostat during winter season.