Use this voltage drop calculator to find the right wire size for your solar electric system.
When an electrical current moves through a circuit, a small amount of voltage is lost due to resistance in the wires. This concept, known as voltage drop, leads to a slight production loss from your solar array.
When you go solar, one of the goals is to minimize voltage drop so that your system performs at peak efficiency. This voltage drop calculator is a tool to help plan your wiring run and get as much production as possible from your array.
The current NEC (National Electric Code) recommends systems should be designed with less than 2% voltage drop. In most cases, a properly-designed solar system should come in well under that mark.
Here are some tips to help you reduce voltage drop and get the most out of your array:
Feeling stuck on system design? Request a free consultation with our design team, or call us up at 1-800-472-1142 to connect with us immediately. Every system we sell includes an electrical wiring diagram designed to minimize voltage drop and ensure your system is up to code.