Controller Sizing Calculation
Solar Controller Sizing
1PV Array Parameters
A

Module nameplate value, typically 9~13A

V
series
parallel
2System and Load Parameters

MPPT is more efficient and accepts higher input voltage

W
3Calculation Results
Recommended Controller Rated-Current Steps
Calculated CurrentRecommended Step
≤12.5A10A / 15A
≤18.75A20A
≤28.1A30A
≤37.5A40A
≤56.3A60A

📋 Reference Standards

IEC 62509PV Battery Charge Controllers
NEC 690PV Systems – US
IEEE 1562PV Array & Battery Sizing