Even in remote areas people uses their own small turbines, on foundations and waterfalls, which are sufficient for their energy requirements. Energy produced through water is called hydropower. An alternative to gas used at homes, is biogas, which is produced by burning various organic matters in the absence of oxygen. After getting data from homes, inspectors put it into file and compare the houses' energy consumption. They conclude which home is more energy efficient and which is not. They give suggestions to low energy consumption homes that how can they increase their energy consumption at optimal price. It is necessary listen to piece of their advice carefully for future benefits. All the electrical appliances and gadgets add up to our burden of power bills month after month until you start thinking about depriving yourself of all those technologies you had once bought to make your life easier, so, instead of completely ruling them out of your life we should work a bit on how they can be used effectively. These devices are very simple to install under walls, floor and ceilings but it is advisable not to install them yourself, call a technician for installation of energy saving devices. Home energy saving devices is available in two categories in markets. First one reduces the gap generated when motor load is driven on the power supply. It is approximately half of the cost of your monthly electricity bill. The remaining one is shared lighting and appliance (24%), water heating (17%), air conditioning (6%) and refrigeration (5%). 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. There are special types of solar energy bulb available in market. They bulbs have special darkness sensors in it which sense the darkness and turn on automatically. You have no need to turn on these solar energy bulbs manually. If there is a light then these bulbs are turn off automatically. The use of solar energy bulb is very easy.