Step Two: Subtract Tax Credit
The federal government grants home owners a tax credit for
installing residential solar panels that is equal to 30% of the cost of the
solar power system. If you build your own cheap autumn
solar controller panels, keep the receipts and keep careful records, just
in case of an audit.
Subtract the tax credit from the cost of your panels. This
is your new breakeven point. For example, if your panels cost you $3000, then
30% of that would be $900. If you subtract $900 from $3000, you get $2100-and
that's how much money you'd have to save to break even on your investment.
Step Three: Estimate Daily Solar Electricity Generated
Next, you need to know how much electricity your residential
on
grid inverter solar panels can generate per day. This number can vary from
day to day depending on cloud cover, daylight hours, and geographic location,
so you'll have to get an average number from the manufacturer or distributor.
If you build your own Cheap Solar Panels, you'll have to estimate it yourself.
For the sake of example, let's just say your home-built solar panels generate
an average of 5 kilowatt-hours (kWh) of electricity per day.
http://mustsolar.blogaholic.se/2016/mar/47873/mppt-solar-inverter-is-definitely-a-blessing/
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