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Will bad weather effect my solar panels?

Even though, solar panels are most efficient and productive when they are in direct sunlight, they can be used in both direct and indirect sunlight to generate electrical power. This means they can still be productive even when there is cloud coverage. On average, solar panels will generate 10% to 25% of their normal power output on days with heavy cloud coverage.

How much money will I save?

How much you will save depends on a number of factors. Direct hours of daily sunlight and the size and angle of your roof are both important, but local electricity rates play the biggest role in determining how much solar can save you. The average home can save between $10,000 and $30,000 over the lifetime of your solar panel system 
Image by Damir Spanic
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Will my electricity work during a power outage?

Solar panels, by themselves, will not work in a power outage because they are grid tied. This means your solar system is wired into your electric company's grid, giving you the ability to take advantage of net metering. When the power goes out from your electric company due to a natural disaster, routine maintenance, or due to an overload, your panels will also stop producing energy form the sun. This is for safety reasons when the electric company sends utility workers to fix the lines. But, when you add a solar battery backup to your solar PV system, your lights stay on even when your neighbors are down.