Do new developments mean todays modules will become obsolete?
No. The product being purchased is electricity, whether a customer buys modules, leases them, or signs a power-purchase agreement. As a result of cost-related factors, the key determinant of a solar system’s cost effectiveness is the long-term price per kilowatt-hour of the electricity obtained. So, while brand spanking-new products may bode well for the industry’s future, electricity bought today won’t become obsolete any time soon.