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Solar Panel String Size Calculator
Find how many panels can go in a string.
bolt Free Online Tool
โก Instant Results
๐ Clear Comparison
๐ 100% Free Tool
String
Compare Your Options And Get Clear Answers
Find how many panels can go in a string.
Solar Panel String Size Estimator
Enter your numbers below for an instant estimate.
0
๐ก Tip: Use temperature corrected Voc.
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Solar Quick Guide
Typical values for reference.
| Vmax | Voc | Vmp | String |
|---|---|---|---|
| 500 | 38 | 31 | 4 to 11 panels |
| 600 | 41 | 34 | 5 to 13 panels |
| 1000 | 49 | 41 | 5 to 18 panels |
| 1500 | 49 | 41 | 13 to 27 panels |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Solar Panel String Calculator FAQ
Answers to common questions about this calculator.
Limits.
It gives a quick estimate of solar panel string size from the values you enter.
No. It is a planning estimate, so check important figures with a professional or official source.
Yes. Edit any field and the result updates when you calculate.