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Description of AC Loads Run by an inverter |
Watts |
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Hrs/Wk |
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WH/Wk |
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line 1 --> |
Total WH/Wk |
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2. Multiply line 1 by 1.25 to correct for inverter loss and battery efficiency. |
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3. Inverter DC input voltage; usually 12, 24 or 48 volts. This is DC system voltage. |
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4. Divide line 2 by line 3. This is total amp hours per week used by AC loads. |
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Step 2 Calculate your DC loads
5. List all DC loads in the spaces below.
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Description of DC Loads |
Watts |
X |
Hrs/Wk |
= |
WH/Wk |
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X |
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= |
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X |
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= |
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X |
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= |
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X |
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X |
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X |
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X |
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X |
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line 5 --> |
Total WH/Wk |
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6. DC system voltage. Usually 12, 24 or 48 volts. |
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7. Total amp hours per week used by DC loads. Divide line 5 by line 6. |
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8. Total amp hours per week used by AC loads from line 4 |
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9. Add lines 7 and 8. This is total amp hours per week used by all loads. |
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10. Divide line 9 by 7 days. This is total average amp hours per day. |
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