Photovoltaic technology converts solar radiation into direct current electricity. A photovoltaic system consists of solar cells made of semiconductor materials. They are electrically connected to each other and mounted in a support structure - a solar panel.
Solar heating systems are more cost-effective than systems that require electricity, propane, and oil heat. They are most economical when they are used year-round in cold climates with high solar insolation rates.
When installing a Solar Energy System for your home you can claim up to 30% of the cost as a solar tax credit. This includes both equipment and installation. This incentive used to have a cap of $2000, but today the credit has no upper limit.