After internal examination, check exterior walls and chimney too but beware of any possible air combustion. Inspect the insulated walls and ceilings, read installation manual and check if the insulation is meeting those requirements. You will need some electricity voltage readers when you'll deal with the insulation. If your bill in not in between these figures then you will be considered as a regular householder, which utilizes electricity unnecessarily. The reason is that are not required to spend to the extent of $2000 a year for energy. A regular house that spends this much amount often misuse the power and ultimately their money. Another important feature of solar energy is that you have no risk. For using solar energy at home you have no need of wiring which is sometime very complicated. If you want to run your garden lights or other home lights with the help of solar energy then there are very less wiring which can easily powered your items. All these requirements can be fulfilled when all the factors, such as home structure, residents, and motorized systems will work together as a unit. The walls, roof, base of the home and floor are basic structure of your home. The basic structure should be strong and capable of providing strength to the remaining parts of your home. In this era of cut throat competition customer wants quality product at reasonable price. Energy appliances should be energy efficient that should minimize electricity bills and contribute to your savings. In past, there were no instruments to measure the consumption of energy, so they could not be able to control energy utilization. Plastics are the best material to insulate, but on moveable objects we might want to use weather strippers which seal a moveable object from its non-moveable object like doors, windows and garage doors. Then comes the blinds and drapes. We should choose those drapes which cover the windows entirely and open them when the weather is sunny to naturally let the heat insulate our home.