Solar panels

Worth it on these numbers

It has paid for itself by year 13.

• Counting the 95% chance it works out, it brings in $1,425 a year on average.
• Over the whole period you come out $9,814 ahead.
• Later years are counted a little less (3% a year), because money now can be saved.

This is a worked example with illustrative figures, not data about any real person or company. Change any of them in the calculator and the answer changes with them.

How this answer was worked out

Every formula is written out on the formulas page.

What the calculator asks you

• Installed cost
• Years before it starts paying
• Income you give up per year meanwhile
• Saved on bills per year
• Chance it performs as promised
• Years you will benefit

Related

• A degreeWorked example
• Trade certificateWorked example
• Bootcamp or courseWorked example
• Is it worth it?The calculator this example comes from
• Before you decideA checklist of what is worth checking first