What should I know before I sign a contract?

If you are purchasing a rooftop solar array, be sure to ask:

  • What is the total installed (turnkey) cost of the system?
  • What is the payback period? What are the assumptions underlying that estimate?
  • Will I need to finance the array?
  • Who gets the tax credits (the “renewable energy credit”)?
  • Will I receive “free” electricity once panels are paid for?
  • Does the company offer warranties on panels and inverters?
  • What are the details of the service contract?

If you are leasing panels in a rooftop array, be sure to ask:

  • What is the upfront cost of the system?
  • Are there other customers in the vicinity with comparable systems? How much electricity are their systems producing?
  • Who gets the tax benefit (the “renewable energy credit”)
  • Can the lease be transferred if I sell the house?
  • Does the lease company have the right to run a credit check?