Solar electrical systems provide sustainable, pollution free energy with very minimal ongoing cost thanks to our good friend, the sun. Recent advancements have made photovoltaic solar system construction much more affordable. As with wind based solutions, solar systems are eligible for net metering in many states which means you could break even on monthly utility bills if you need to tap into local utility company power or even earn a cash return if you are in excess annually.

With solar systems it is important to know exactly what you are purchasing and how this particular solution generates electrical power. The key component to these systems are the photovoltaic solar cells which are networked together to create individual electricity panels or modules.

The panels then pass the electricity produced through a power inverter which changes the voltage form AC (Alternating Current) to DC (Direct Current) which is usable by the utility grid and your household appliances. If the solar system is going to act as the chief power source the system may also include batteries to store back up power in case there is a power outage or abnormally long period of low sunshine.
A newer method of implementing solar systems utilities photovoltaic shingles which replace their normal asphalt counter parts. Advances in this technology have lead to a sharp cost reduction in recent years, you can even integrate the solar powered shingles for a unique and modular solution. If you live in a particularly sunny environment you should definitely consider photovoltaic shingles.

Research shows that the costs for solar panel systems under ten kilowatts created in 2006 and 2007 ranged from $7.50 per watt in areas such as Arizona, New Jersey, and California up to $10.50 in places like Maryland. Experts find that larger module deployments over a wide area provide the best investment to cost ratio.