Frequently Asked Questions and Answers
California is the number state for solar installations! If you had not installed solar yet, it's time now while you can still enjoy tax credit and low cost.
Here are some simple economics and issues you may care:
1. Is it expensive?
A: It's an investment with returns. Consider 10% a bench mark. With electricity rate increases, return increases.
2. How much it cost me, after all?
A: A typical 5kw system can generate 25 kWhr per day, or over 9000 kWhr in a year. This system cost about $21k-$23k in today's market.
After installation, you are entitled a 30%, about $6.6k Federal tax credit.
Your true cost $15,400.
In addition, there are state level incentives available. Check with your installer for what's available for your home.
3. How much money can I save?
A: Your system can generate 9000 kWhr in a year with California sunshine, your household pays more than $0.15/kWhr. Your savings would exceed $1,350 per year.
4. I plan to buy an electric car, can solar system help me safe electricity?
- Yes! Solar and electric car go perfectly together. It can help you stay away electricity at higher ties, which is very costly.
5. Would any roof good for solar?
A: Solar system requires getting maximum direct sunshine. For this reason the best is south facing properly tilted roof. Roof surface should also enough for the proper number of solar panels. For example, 20 panels for a 5kw system.
6. Are there any radiation from solar panel?
A: solar panels are made of silicon, glass and other materials without any radiations. All other parts are tested.
7. What if there are tree shade on my roof?
A: Installers must perform professional shade analysis before deciding the layout.
If your neighbor's tree grow to shade your roof after the installation, law requires your neighbor to trim their tree.
8. Any reflection affecting my neighbor?
A: Solar panels are made of glass with anti-reflection coating, minimizing the reflection.
9. Does the solar system generate electricity when there is no sunshine?
10. What if the grit is down?
A: The solar system will automatically shut down it's connection to grit. The panels are still generating power but not connected.
11. What should I do if there are leafs stick on the panels?
A: Although usually rain would clean the panels, you should remove the leafs or other objects on the panels.
12. What if I use less than the electricity generated?
A: The excess amount will roll over to next month, but not roll over to next year.
13. Do I have danger to clean the panel with water?
A: Although the panels and connections are water proof, still suggest to clean at early morning or after sunset.
14. Can I step on the panels?
A: No. Solar system layout will keep roof surface for your access.
15. What should I do during typhoon, hail or earth quick?
A: The solar systems are designed resisting weather conditions in your area. For safety, you can turn off both DC and AC disconnects.
16. Can I replace parts if broken?
A: You should call your installer for repairs.
17. Can I install by myself?
A: Yes you can. There are hardware packages can be purchased. We recommend you hire licensed professional installers for the quality and reliability.
18. Are there danger when lightening?
A: All solar system are grounded.
19. Can the electricity guaranteed?
A: Professional installers can provide estimate based on all certified parts.
20. Is it better to lease?
A: Solar system works decades. You are much better off own the system if you are capable to pay it off. Compare with installers to find out how.
21: Do the solar panels need to be mounted on my roof?
A: Panels are often mounted on the roof, but can also be mounted on the ground. Ground mounts are great if the house is shaded, or if dormers or other obstructions limit available space on the roof.
22: Do the panels need to face south?
A: South is best, but panels installed facing east or west still generate a very high percentage of possible power. It is usually more effective (and more attractive) to install the panels in the same plane as the roof direction, rather than build an awkward mount to angle them.
23: Are the panels fragile?
A: No. While the panels are made of tempered glass, it is quite strong. They pass hail tests, and are regularly installed in Arctic and Antarctic conditions.
24: How much solar electric power do I need to power my home?
A: Each home is different, and the amount of electricity you use is very dependent upon your lifestyle, how your home was built, and your appliances. As part of our services, we work with you to reduce your electrical consumption is easy ways.
25: How long will the system last?
A: SUNx Solar chooses superior products with superior warranties, certainly well beyond any payback or lease period.
26: What happens when the utility has a power outage?
A: Solar Advantage offers a battery backup to benefit one key outlet in the home during anoutage. The battery back up will actually pay for itself during the first 8 years. Comparing the battery backup to a generator (generally $3,000 cost), the battery is a cleaner, more viable, lower cost alternative.
27: What is Net Metering?
A: Net Metering is the regulatory ability to get credit for electricity you generate with solar energy and send backwards through your utility meter. Exact provisions vary with each state, but the effect is to allow you to generate excess power during the day, and use it at night, without needing batteries.
28: Do I need to install a new roof before the solar panels are installed?
A: Solar panels will last many years (over 25). Because of this, we want the roof to be in decent condition, as it does not make sense to remove and re-install the panels after only a few years.However, after the panels are in place, they will greatly reduce the wear on the roof by blocking ultraviolet rays, keeping most snow and ice off the roof, and keeping anything from hitting the roof.
29: What happens if the panels are shaded?
A: PV panels should be installed in areas where they get significant shade-free sun every day. Even small amounts of shade can significantly reduce the output. Our designs and installations also seek to minimize the impact of any shade issues through selection of the proper equipment and good engineering.
30: Do I need to clean the panels periodically?
A: Most of our customers do not clean their panels. In most areas of the country, there is sufficient rain to clean the panels. However, if you are in a dusty area (very near a busy dirt road, very urban area, etc.) you may see a performance gain from cleaning the panels monthly. If necessary, a hose stream is usually sufficient for cleaning. Do not walk on or over the panels to clean them. Do not use metal, hard, or abrasive methods for cleaning. Do not spray water on the panels when they are very hot.
31: How long does it take to install a PV system?
A: Typical residential systems take from 2 to 5 days to install. Systems mounted on the ground and systems with batteries are more complex, and may take longer. Most of this time is spent outside your house, so there is little disturbance to you.
32: How does the solar power get stored?
A: It is either used immediately in the house, or sent backwards through the meter, creating a credit. If storage is needed, large batteries and other equipment are added to the system.
33: Should I wait for newer technology before I commit to purchase solar panels?
A: Most people base their purchase decision on financial reasons, namely the cost of energy, the cost of the system, and the available incentives. These three (3) create an algorithm where the only expected change over time is the cost of energy which will increase. However, the expected end result of the algorithm with the same three variables will be the same in the present or the future. So a viable attractive purchase for the homeowner is without