Solar Calculator

Calculate Your Solar Heating Payback

Use the solar calculator to calculate you solar payback. Solar heating systems cost more to purchase and install than conventional heating systems. However, solar heating systems can become cost effective over time.

The paybacks are generally better for new-construction systems than for retrofits. The installation of new systems can cost less.

Your savings depends on the following:

• How much solar energy that reaches your solar collector
• The amount of hot water you use
• Your system's efficiency
• The terms of financing and incentives
• The cost of conventional fuels (natural gas and electricity.

The cost of the fuel you use for your backup water heating system, if you have one.

On average, solar heating systems can drop your heating bill 50 to 80%. Also, because the Sun is free, you're protected from future fuel shortages and price hikes. The calculator provides you an easy way to calculate the payback period for your investment in solar heating systems.

Use My Solar Estimator (below) to determine: the economics an carbon emisions saved for solar heating systems.

Make sure you read and understant the calculator assumptions.