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Testing Results
TEST SETUP:
(It was a lot brighter than the image shows. Each lamp is a 500W halogen lamp, for 2000W total)
Below are shown the graphs produced form the tests, the tests with single panels were completed with all 4 halogen lights shining on a single panel:
Panel Only
1 Panel, 1 MPPT
2 Panels, 2 MPPTs, Parallel (with regular diodes on outputs of individual MPPTs)
2 Panels, 2 MPPTs, Series
| Condition | Vmpp (V) | Impp (A) | Pmpp (W) | MPPT Power Loss | MPPT Efficiency |
|---|---|---|---|---|---|
| Panel Only | 15.028 | 0.829 | 12.452 | ||
| Panel With MPPT | 14.638 | 0.802 | 11.739 | 0.713 | 94.3% |
| 2 Parallel | 17.727 | 0.732 | 12.982 | ||
| 2 Series | 30.648 | 0.44 | 13.477 |