- Cost: A five-kilowatt system for a single-family home with a utility bill of $300 per month in Guam would cost a customer an estimated $12,250 after the tax credit with a payback period of 3.4 years. Thereafter, the customer will receive $300/m of free power.
- Purchase directly: Maximizing the value of the returns of your hard work is important. Why earn a one percent return from a traditional savings account when you realize a significantly higher yield by investing in solar? The average return on investment on a solar system is between eight and 10 percent-greater than a savings account and more stable than the stock market.
- Finance through your banking institutions: Banks and credit unions offer a wide range of financing options for their customers, and many even have special green lending programs that are ideal for financing home solar installations.
- Power Purchase Agreements: Under a “PPA,” a third party owns and maintains the customer solar system, selling the kilowatt-hours at a fix rate back to the customer. This provides customers low capital costs but pay for a term that may last 20 years as well as not benefitting from the tax credit.
JOSE S. SERVINO, P.E., CEM, CDSM
Certified Energy Manager, Certified Demand Side Manager and Professional Engineer
Advanced Engineering Consulting Company