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SUNLIGTH Ltd. - Design, Engineering, Financing and Installation of photovoltaic (solar) systems and power stations. Solar Energy Audit.
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Q: Do panels store energy from the sun?
A: The electricity generated by your system is used directly by your property when it is produced. Any power generated in excess of your home's requirements is sent out to the utility grid, spinning your meter backwards.

Q: How much roof space is needed to power my home?
A: A good rule of thumb is to allow 10 sq. m. per every kilowatt (kW) of electricity the system produces.

Q: What is an inverter?
A: An inverter converts the DC (direct current) power produced by solar panels to common household AC (alternating current) power.

Q: How long will my solar system last?
A: Most solar panels come with a 25 year power output guarantee and are expected to last at least twice that long. The power output guarantee on the solar panels in provided by the manufacturer of the panels and states that at the end of the 25th year, the solar panel will still produce a minimum of 80% of their original power output.

Q: What is the optimum angle for a solar system?
A: For Bulgaria it's between 29 and 32 degrees

Q: Will the panels create a glare that can disrupt planes flight path?
A: No. The panels have a glare resistant tempered glass cover that minimizes reflected light.

Q: What is the payback?
A: For a system, which is planed, designed and installed well, you will often recover all your investment within the next 8-12 years.

Q: How do I know if my system is producing what it is supposed to?
A: We use a conservative 20 year historical sun data when estimating what your system production. Your inverter has an LCD display that provides à readout as to how your system is producing, which makes it simple to compare our estimates to your actual production.

Q: How will the weather affect my solar electric system?
A: Solar electric systems are designed to withstand most weather conditions. Lightning, wind up to 80 miles per hour, and extreme temperatures are all things your solar system can handle. However, these conditions will temporarily reduce its energy production.

Q: Can solar panels withstand hail?
A: Yes, solar panels are guaranteed to withstand 3/4 inch hail balls at 120 miles per hour.

Q: What's the effect of rain and fog?
A: In fog, marine layer, or June gloom your system will still produce about 25 - 30% of the normal production. A steady rain can cut production slightly but is great for cleaning your panels.

Q: Is snow covering the panels going to reduce production?
A: You're absolutely right that during the time immediately following a snowstorm when the panels are covered the system production will be minimal. However, we place solar systems in the exact spot where sunshine is greatest. The first area to melt will be where the solar panels are located. Plus, the panels are tilted with a surface made of tempered glass allowing snow to easily slide off.

Q: What happens when lightning strikes a panel?
A: The solar electric system is designed to sustain lightning by being sufficiently grounded.

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