This guide gives you the diagrams for each configuration, the decision matrix, the wire gauge chart, and the step-by-step for connecting 2, 3, or 4 panels. I wired my own 6 kW grid-tie array in 2024 — 14 panels in two series strings of 7, feeding a dual-MPPT inverter.
[PDF Version]
A solar array can be up to 130 of the inverter capacity, so connecting between four and fifteen panels in series is possible.
[PDF Version]
For lithium-ion packs, a series circuit connects cells end-to-end so voltages add while current rating stays equal to one cell, whereas a parallel circuit ties all positives together and all negatives together so capacity and current rating add while voltage stays at one cell.
[PDF Version]
Series Wiring – Increases total voltage while current stays the same; ideal for long cable runs and voltage-based inverter requirements.
[PDF Version]
