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.
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A solar array can be up to 130 of the inverter capacity, so connecting between four and fifteen panels in series is possible.
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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.
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When selecting an aluminium profile for pv solar panel mounting, prioritize high-strength 6000-series alloys (like 6063-T5) with corrosion resistance, precise channel dimensions for secure clamp fit, and compliance with structural standards.
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