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1. How does solar work? How the Technology Works Solar electricity works exactly the same as the electricity you buy from the utility company. You turn on lights, plug in lamps and power appliances the same way you do right now. In fact, if you didn't see solar modules on the roof, you'd never notice any difference—except a lower electric bill. While the science of converting sunshine into electricity is complex, the idea is pretty simple. Solar electricity is generated by a group of solar modules called an array that's installed on your roof or in your yard. When sunlight falls on the solar modules, a DC electrical current is created instantly. The DC electricity is fed into an inverter that changes it to standard AC electricity—the same kind your home already uses.
You know that meter in your yard that tracks your electricity usage? The dial spins forward as you use electricity. How long and how fast it spins ultimately determines your bill. But did you know that it can spin in either direction? Whenever your solar electric system produces more electricity than you use, the surplus is channeled back to your utility's power grid, making your electric meter spin backwards. It's called net metering, and it means you’re earning credits on your bill. Best of all, it means your electricity at that moment is free.
According to the American Solar Energy Society, the amount of sunlight hitting the earth in just one hour is enough to provide the world's energy needs for an entire year. With that much potential, why isn't everyone using solar electricity?
2. How do I know if solar will work on my home? Sharp offers more than one way to go solar. With so many options to choose from, you and your Sharp certified independent installer will decide what’s right for your home and your family. Much of the decision is based on the amount of roof space you have and which direction your home faces. South-facing roofs produce the highest annual output; however, east- and west-facing roofs can also harvest good results. It is important that your system will not be shaded by trees, buildings or other obstacles for long periods throughout the day.
The OnEnergy™ system is Sharp's custom solution designed to meet your electricity requirements and the specifications of your roof. Its sleek, low-profile racking system creates a seamless appearance that integrates well on asphalt-shingle, flat-concrete tile and curved Spanish tile roofs.
3. Does solar work on cloudy days? Or when covered in snow? Yes, solar modules produce electricity on cloudy days, it is just less electricity. If the solar modules are completely covered in snow, they will not produce electricity. As a rule of thumb, if there is enough sunlight to cast a shadow, then solar panels can produce electricity. Of course, in areas where there is abundant sunshine—like California—a smaller solar electricity system will provide as much power as a larger system located in Maine or Washington. But, solar works just about anywhere and makes a difference on your utility bills.
4. How much does solar cost? The cost of a system depends on a wide variety of factors including the type of roof, system complexity, geographic location, system size and more. An approximate installed cost is $7.00-$10.00 per watt before incentives. The federal government and several state governments offer generous rebates for purchasers of solar systems.
Solar modules are warranted to produce energy for 25 years. Over that time period, the cost of electricity from the utility continues to increase, while the solar system produces energy for free. Additionally, a solar electric system can increase a home's value by $20,000 for every $1,000 in reduced annual operating costs.
Check out our Solar Calculator to get more informationhttp://sharpusa.cleanpowerestimator.com/sharpusa.htm
5. Are solar modules dangerous? All Sharp modules are UL 1703 certified and hold a Fire Rating of Class C. Solar systems should be installed by a certified solar installer, which will include work done by a licensed electrician. Additionally, all systems should be inspected by a city official before being activated.
6. How long does it take to install a solar system? It only takes 1-3 days for the average residential rooftop system to be installed. One should expect 4-9 weeks for the entire process, which includes everything from a site evaluation to the switch being turned on.
7. Is there maintenance required to keep a solar system operational? Occasionally, a solar array should be rinsed off with a hose to clear the dust or debris that blocks sunlight and reduces efficiency. That’s about all that's required. There are no moving parts to wear out and Sharp solar modules are covered under limited warranty for power output for 25 years. In fact, there are solar modules that Sharp installed 50 years ago that are still producing energy today.
8. There are a lot of solar products on the market, why are Sharp products are a good fit for me? Since the invention of the solar electric cell, Sharp has been at the leading edge of the solar industry. From the world's first solar-powered calculator to solar-powered residential and commercial applications, Sharp powers more homes and businesses than any other solar manufacturer in the world. This means you have an experienced solar partner you can trust.
We have developed advanced technology to counter light degradation, boast long-term reliability, and strengthen construction. And with more module choices to optimize energy production, our nationwide network of independent Sharp certified installers can create custom design solutions for your project. We even offer the exclusive 72-watt triangular module, which blends with roof lines and creates additional energy production by covering more surface area on hip-and-valley roofs.
Sharp's industry leadership, quality manufacturing and extensive network of independent certified installers make converting your home to solar power more feasible and easier than you may have imagined. Our nationwide independent installer network ensures that there's a solar expert close to you, ready to come to your home to determine your energy needs with a free consultation.
We are determined to continue on the path for improvement and made a commitment to setting new standards for energy efficiency and environmental friendliness by working to minimize waste and greenhouse gases in all Sharp factories.
9. How do I get electricity at night? Can my solar system store energy for use at night? While sunlight is required for solar modules to create electricity, your home will draw power from the utility grid during nighttime hours, unless you have a battery backup system for your home. While batteries are helpful during blackouts, this option is really only necessary for remote homes and cabins that are not connected to the utility grid.
10. Will a solar installation ruin my roof? Or will it look unattractive? Sharp's OnEnergy solar residential system creates a new dimension in solar aesthetics and reliability. Its clean, elegant appearance blends beautifully with rooflines, and sleek front, top and side trim covers improve water channeling and decrease wind drag. Custom-engineered tile attachments and ultra low-profile sliders atop hidden butyl sealant pads provide superior water protection. UL-listed as a complete system.
Sharp performed extensive testing to ensure that water leakage is not an issue when our OnEnergy system is used on residential roofs. Our system has special sealant pads that instantly create a waterproof seal at all roof penetrations. A black silicone caulking is then added for additional protection.
Sharp's OnEnergy system uses a simplified, flexible mounting system to improve both the speed of installation and aesthetics. The OnEnergy solar system is installed with the plane of the roof and has a low profile that rests as low as two inches off the roof. It can also be installed on just about any roof, including asphalt shingles, curved Spanish tiles and flat concrete tiles.
11. How can I get an installation estimate? Please click on the "Contact Us" link for more information or call us at 1-800-SOLAR-06 and we will have an independent Sharp Solar certified installer contact you. Our strong network of more than 100 installers and service sites throughout the U.S. ensures that there's a solar expert close to you, ready to come to your home to determine your energy needs with a free consultation. All you have to do is contact us. We'll do the rest.
12. Where can I find more information on local and federal incentives to help me afford my system? The federal government and many state governments are supporting solar by offering great incentives for homeowners to switch to solar. Homeowners may claim a federal tax rebate that is equal to 30% of their system cost. Depending on where you live, there may be additional incentives available from your state government. Your independent Sharp certified installer can explain what savings are available to make your system even more affordable. For rebate information in your state, visit the Database of State Incentives for Renewables and Efficiency at www.dsireusa.org.
13. How does using solar electricity help the environment? Does solar help offset climate change? Coal-fired electrical power plants are responsible for 72% of all sulfur dioxide emissions in the U.S. On the other hand, solar electricity produces absolutely no pollution. One million homes going solar would result in a carbon dioxide emissions reduction of 4.3 million tons per year! That's the equivalent of removing 850,000 cars from the road. By using more solar electricity, fewer greenhouse gas-producing power plants need to be built. This is one major step to reducing climate change.
14. What is your warranty?
We offer a 25-year limited warranty on power output for all modules. Sharp warrants material defects and workmanship for one year from the date of purchase. We also warrant power output for 25 years from the date of purchase. The first 10 years are at 90% of the minimum rated power output and the remaining 15 years are at 80% of the minimum rated power output.
15. What if there is a blackout? Will I have power? If you have a typical residential system, you will lose power during a blackout. This is due to safety precautions. Electrical workers need to know if electricity is running through power lines when working. If they believe there isn't electricity in the lines, because of the blackout, but your system is adding electricity to the grid, this could cause safety issues.
You can still produce electricity when there is a blackout if you have a battery backup system. Batteries add a significant cost to the overall system. Installing a battery backup system is not necessary unless you are in an area with severe blackout issues, or intend not to connect to the utility.
16. How big of a solar system do I need? The size of your system depends on how much electricity your household uses on a regular basis. You can figure this out by looking at the last 12 months of electric usage in kilowatt hours (kWh) on your utility bills.
The most efficient use of your money is to offset your highest rates if you pay based on a tiered rate schedule. Instead of attempting to offset 100% of your use, you may consider offsetting a portion of your consumption.
One of the main constraints for a system size is roof space. On average 10 watts take up 1 square foot. Therefore, a 4kW system would require approximately 400 square feet of roof space.
For additional information, you can check out our Solar Calculator at http://sharpusa.cleanpowerestimator.com/sharpusa.htm
17. How can I buy solar modules direct from Sharp? Homeowners cannot buy directly from Sharp. We will refer you to a qualified Sharp installer in your area for a complete turnkey solution. Please click on the "Contact Us" link or call Sharp Solar at 1-800-SOLAR-06 and we will have an independent Sharp Solar certified installer contact you. Our strong network of more than 100 installers and service sites throughout the U.S. ensures that there's a solar expert close to you, ready to come to your home to determine your energy needs with a free consultation.
Find out how Sharp solar can work for you with a free consultation
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