As with any large purchase, it is a good idea to get quotes from multiple installers before making a decision. If possible, get at least three quotes so you can compare and contrast what installers have to offer.
Be sure that all of the bids you receive are for the same type of equipment. Comparing a bid for a system mounted on the ground to one for a rooftop system is like comparing apples to oranges. Also, some types of solar panels generate more electricity per square foot than others.
Bids should clearly state:
- Maximum generating capacity of the system (measured in watts or kilowatts).
- Estimate of the amount of energy the system will produce on an annual basis (measured in kilowatt-hours).
- System capacity in AC watts, or the output of the system at the inverter.
- All costs, including hardware, installation, connection to the grid, permitting, sales tax and warranty.
- Warranties and performance guarantees.
Ask each installer for customer references and contact information.
All contractors working within Shawnee should have a valid business license with the City. Contact the City Clerks Department at (913) 742-6014 to verify their license status.