An Electric Solar Power Energy system uses photovoltaic cells to directly convert solar radiation into electricity. This is ideal because there are no moving parts, no emissions of any kind, and therefore no maintenance or pollution. The more solar panels that are installed the more electrical energy is created.
This would be the perfect energy source if the efficiency of photovoltaic solar cells were higher. Unfortunately, photovoltaic cells are typically only about 15 percent efficient. However continued research will increase solar cell efficiency and become less expensive as more progress is made. Small systems for remote cabins or small homes can start around $10,000 and larger family homes can easily reach $50,000 for a completely self sufficient system.
A more practical approach that is more affordable is a Grid-Tie system. This type of system is connected to the existing electrical grid and does not require batteries (which are expensive). All you need is a grid-tie type inverter and you just add as many Solar Panels as you can afford. This way you can reduce your electric bill and actually run the electric meter backwards and still have plenty of electricity available from the grid for larger loads or when there is little or no sun.