Photovoltaic System Design and Installation

• A photovoltaic, also called “PV”, or “solar electric” system can be designed to cover any amount of a households or businesses electric needs.  That amount can be 20%, 100% or anything in between.
• A system can be designed to fit a certain budget. 
  
• A grid-tied system is one that is tied, or connected, to the utility company.  Any extra electricity you produce will go to the Utility Company and your meter will run backwards.  If you need more electricity than you produce, you have the Utility Company there for back-up.  This system generally runs about $9-$10 per watt.
• A grid-tied system with battery, or generator, back-up can also be designed.  The back-up can be used to cover critical loads in case of a power outage.  For example, your refrigerator, a couple of lights and your computer.  This system generally runs about $12-$13 per watt.
• An off-grid system is usually used in a remote area or in a location that is more than a quarter mile from utility lines.  This system provides for all your electrical needs.  It generally runs about $15 per watt to install.