Solar sales moves fast. These questions slow it down to a pace where you can compare like with like.
On the numbers
Ask for the estimated annual production in kilowatt-hours, the assumptions behind it, and whether there is a production guarantee in writing. Ask what utility rate escalation the savings model assumes — an optimistic escalator can make a mediocre system look excellent.
On the equipment and warranties
Panels, inverters and batteries carry separate warranties, and workmanship coverage is separate again. Find out who honors each one and for how long.
- Panel product and performance warranty length
- Inverter warranty and replacement cost
- Workmanship and roof penetration coverage
- Who services the system after install
On the process
Ask who pulls permits, who handles utility interconnection, how long approval typically takes locally, and what the payment schedule looks like against those milestones.
Pickwise is an independent consumer matching and referral service. We do not manufacture, sell or install home improvement products, and we do not provide quotes or pricing. Information you submit is used to identify participating windows, solar, roofing and HVAC professionals serving your area, where available. Matching depends on your location, your project requirements and participating professional availability, and is not guaranteed. There is no obligation to purchase anything.