Q1.How long should I expect my system to last?

A1. Modules usually come with a 20-25 year warranty. Systems last longer than their warranty.

Q2. How long should it take for system pay back?

A2. Typically 7-9 years

Q3. Will it make sense for me to wait for technology to improve?

A3. The expected improvements in efficiency will be incremental and will reduce square feet requirements in the future.

Q4. Will prices come down as the technology becomes more frequently used?

A4. Prices are hard to predict because the basic material silicon is a commodity. It fluctuates just
as copper or steel do.