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Solar Electric System Sizing
Step 5 - Size Your Array

1. Enter your daily amp-hour requirement (From the Load Sizing Worksheet, line 4)

2. Enter the sun-hours per day for your area. Refer to chart.

3. Divide line 1 by line 2. This is the total amperage required from your solar array.

4. Enter the peak amperage of the solar module you have selected.
Peak A____

5. Divide line 3 by line 4. This is the number of solar modules needed in parallel.

6. Select the required modules in series from the following chart.

Battery Bank Voltage
Number of Modules in Series

7. Multiply line 5 by line 6 to find the total number of modules needed in your array.

8. Enter the nominal power rating (in watts) of the module you have chosen.

9. Multiply line 7 by line 8. This is the nominal power output of your system.


Step 1 -
Determine Your Power Consumption Demands
Step 2 - Optimize Your Power System Demands
Step 3 - Size Your Battery Bank
Step 4 - Determine the Sun Hours Available Per Day
Step 5 - Size Your Array

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