YepThat’s just over $4/watt. If you shop around you can likely get closer to $3/watt or maybe slightly under before tax credits. That would drop the $36,500 price closer to $27,000. At that point securing your own financing would likely make sense over taking theirs even if you can’t get the same rate.
We had a 15.3kw system installed last year for $43,500 before tax credit, around $30,500 after the 30% credit. This didn’t include financing as we paid cash. We’re on pace for the system to pay for itself in somewhere around 7 years.
Do your homework
Or hire someone independent to do it for you and you'd end up saving more $$ than just taking what sales reps hand you.