This Solar & Wind Estimator will estimate the size and calculate the cost to install an energy system for your home or building. Technology options include solar electric (PV), solar water heating, pool or spa heating, space heating & cooling, and wind turbines. The financial analysis provided is based upon energy bill savings you can expect and the net system cost, after tax credits and other incentives are applied. The results are based upon many assumptions and the limited data you will enter. An actual site assessment by a qualified Professional will be needed to determine the actual costs and benefits of installing an energy system.