I need a solar power system

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ahmbell

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I have a 875va inverter luminious pure sine wave with a 200amps ,12volts battery pls I want to know the wattage of pc ,rating of charging control and the meter square of the pv I will need to charge this battery and assuming I may be using the inverter during d day .thanks.pls break the explanation down I know just little about solar panels.
 

ahmbell said:
875va inverter...
200amps ,12volts battery
Click to expand...

I assume this means the battery is 200 Amp-Hrs.

In terms of raw math...

The inverter draws 73 Amperes at full load (875 W divided by 12V).
Add 15% to make up for inefficiency, makes 84 A.

The battery will last 2.4 hours (200 AH divided by 84 A).

Suppose a day's charge session is 8 hours. Then your PV panels must produce 25 A continually. (200 AH divided by 8 hrs.)

You need 300W of PV panels (12V times 25 A).
Large panels put out as much as 100W. You'll need several panels. This is approaching 30 or 40 square feet worth.

If you wish to use the inverter during the day, add another panel or 2.

Winter days have shorter days, and dim sun. You'll need more panels in wintertime.
 

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