Most people grasp the fundamental concept of solar power-that is, you will create electricity directly from the rays of the sun reflecting on a silicon wafer. Solar electricity is pervasive in our culture and you will see it all over the roofs of industrial buildings, from dime store calculators to large photovoltaic (PV) arrays. solar power offers excellent info on this.
Even, most homeowners who wish to attach solar power to their homes face a prohibitive road that is incredibly expensive. You know, when you look at solar power, what most solar vendors say is to take a snapshot of your power bill, then locate the monthly kilowatt-hour (kWh) amount you need. Essentially, they think that they can determine the size of the solar array you will need to operate your home off electricity, by figuring out how much power you use on a monthly basis. We typically ask you a question like “how much of your home you want to operate on solar electricity,” and almost always the answer is… This all leads to some serious problems.
The very first thing to consider about PV arrays is that it will almost always result in extra expense and more fuel than you really need to retrofit them to an existing home. It is because they built your home to operate off grid electricity. The electricity providers have happily arranged to operate several hundred watt incandescent lamps in each house, and to use big, bulky, energy-waste devices with which they would gladly charge you for all the electricity you use. Yet guess what – if you decide to take your existing electricity bill and substitute it with 100% free solar energy, you can guarantee that the photovoltaic device procurement and deployment would be anything but cheap. In reality, the typical American home requires 1000kWh of electricity each month, and an array built by a good manufacturer to support this would cost you anything like $30-50 K, even after government rebates. It is really really, really costly.
Typically this is the stage that solar purchasers will get switched off. They glance at their monthly electricity bill and conclude that actually charging it annually is better than tossing a huge wad down on the sun. In most situations, if you give it to the power plant every month, a solar system would compensate for anything like a decade of electricity.