Wiring Solar Panels On Roof

The renogy solar panels came with short wires with mc4 connectors attached from the factory.

Wiring solar panels on roof.

You can purchase and add mc4 crimp on connectors to your rooftop cables which will allow you to just plug your panels into your extender wires. Also be sure the stanchion flashing fits beneath the. When stringing panels in series each panel additional adds to the total voltage v of the string but the current i in the string remains the same. For standing seam roofs the solar panels simply clamp onto the seam where two panels are connected.

When installing conventional solar panels on asphalt shingles the solar panels are simply bolted through the shingles to the roof joists providing a very strong sturdy attachment. Run the wiring from the solar source to a junction box then transition to your conduit run. You will need to extend these short factory wires with longer wires in order to reach the combiner box. On the roof lay out the locations of the stanchions that will support the solar panels.

Do not allow exposed wiring to make contact with the roof surface. When stringing in series the wire from the positive terminal of one solar panel is connected to the negative terminal of the next panel and so on. Use cable clips to secure wiring from solar panels and micro inverters power optimizers. Fasten the upper and lower aluminum rails to the stanchions with stainless.

The clips should hold the wires in place during strong winds. Screw each stanchion through the roof and into a roof rafter.