Cables & Wiring

You will need wiring to connect the components of your renewable energy system together. Identifying the proper gauge wire is essential to a safe and code compliant system. Start with the article How to Size Wiring and Cabling for Your System in the Learn section of our website. For a more complete description of wiring sizing, check the following references:

Most solar modules are now manufactured with Multi-contact Solarline connectors, (MC connectors, for short) which make for an easy Series connection. Connecting solar modules together in Parallel can be easy as well, if you have the right products. MC connectors provide a connection between the solar modules and Combiner Boxes. The proper length of your MC connector will be about double the distance between the solar array and the combiner box. Simply plug the MC connector into the leads of the solar module, cut the connector in half, and then run the bare ends of the connector to the combiner box. Do not cut the MC leads from your solar panel! This may void the manufacturer's warranty.

Continue reading about battery interconnect cables, other wiring and more!

Cables & Wiring Sub Categories

Battery Interconnects

Battery To Inverter

Cable & Wire Tools

Wire By The Foot

Wiring For Solar Panels

More info on Cables & Wiring

Alt E offers several specialty wiring components to help complete your system. Battery Interconnects and Battery To Inverter cables will be necessary for any system with batteries. We also offer crimping Cable & Wire Tools if you would like to make your own battery cables. In addition to wiring between solar modules, between batteries, and between the battery bank and inverter, you will also need wiring from the combiner box to the battery bank - sometimes known as the home-run. Because wire is available in most locations, the wire size needed can vary, and wire tends to be heavy, and expensive to ship, we tend not to sell it by the foot.

Finally, grounding your system is a critical aspect of installing a safe renewable energy system. For any solar electric system on a dwelling, you will need AEE Grounding Lugs With Set Screws Qty-1 per module to meet NEC requirements for connecting a continuous ground wire to all modules in an array and having the ability to remove a module without breaking grounding continuity for the rest of the array. If you are unsure how to properly ground your system, please consult a licensed electrician as well as the National Electric Code and Solar Electric Systems . Or visit us for one of our advanced PV Classes.

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