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Frequently Asked Questions about Solar Electric Systems
Why should I invest in a solar electric system for my house?
- It will produce electricity for you every day.
- The system helps combat Global Warming by reducing power plant pollution.
- NY, LI and CT rebates and tax credits pay for about half of the installed cost.
- You will be protected against future electric rate hikes.
- You will increase the value of your home.
- You will receive an annual return on your net investment of from 10% to 15%, which will increase if electric rates increase over the 30+ life of your solar system.
How do I know if solar modules will work well on my house?
Facing south, a 5,000 watt solar system will produce between $850 - $1350 annually in electric saving depending upon the utility electric rate.
Why are New Jersey and New York subsidizing more than 50% of the cost of solar electric systems?
Because utilities are having a hard time keeping up with growing electric demand. Clean Energy Programs encourage homes and businesses to adopt solar electric technology. If many buildings install solar electric systems, fewer new power plants and transmission lines will need to be built.
How do I know what size solar system is right for my family?
By comparing available south roof space and annual electricity expense, a solar consultant can help you to determine what size system is right for you. Some homes have enough southern exposure to produce all that they need while other homes have limited space.
What happens if my system produces more electricity than I am using at that moment?
The excess electric flows back out over your existing electric lines and spins your meter backwards. You earn a credit at your high retail rate until the sun goes down and your meter spins forward again. The law allowing homeowners to spin their meter backwards, called Net Metering, is the law in 36 other states.
How much do I need to invest to own a solar electric system?
Although most systems for homes cost between $25,000 and $75,000, the net investment by the homeowner is generally between $8,000 and $25,000. The net investment by businesses is generally from $20,000 to as much as several hundred thousand dollars.
Do solar electric systems generate electricity when it is cloudy?
Yes, solar systems start producing under low levels of light, but produce the most in clear sunny conditions.
Is the Northeast a good place for solar energy?
Yes, surprisingly good. In fact, we receive about 70% of the solar energy received in sunny San Diego because we have a coastal weather pattern.
How much space will I need on my roof or in my yard for a solar system?
Each 1,000 watts (1 Kilowatt) of solar modules occupies about 100 square feet. So a 5,000 watt (5 Kilowatt) system needs an area of 20 feet by 25 feet (500 sqare feet) and a commercial 50 KW system needs an area of about 5,000 sqare feet.
How long will my solar modules last?
Most solar modules have performance warranties of 25 years, and are expected to last at least 30 years. Inverters carry five-ten year warranties but are expected to last at least 20 years because they are fully electronic, and have essentially no moving parts.
Will my solar electric system operate when my utility has an outage?
The normal solar electric system must stop producing power when the electric grid is down for safety reasons. When grid power starts up again, the inverter will continue to provide power automatically. Battery backup inverters allow you to continue producing and using electricity from you solar array during a power outage.
I still have more questions. How can I get answers?
Send us an email. |
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