Do I Really Need Wire That Thick?

Don’t set your off grid project (or van build, travel trailer or RV) on fire. Finding the right size wiring will lower resistance, and help prevent electrical fires. Don’t know how all of this works? Take a look at our Math of Solar tutorial to learn all the sciencey bits.

Wire Size Voltage at Max Drop

Disclaimer: These calculators are third party, standardized calculators. Usage of these calculators are for educational purposes only. Building electrical systems without the supervision and help of a licensed professional may result in financial loss, physical and mental injury, property damage, and in some cases death. Teragy LLC does not condone, promote, encourage or help its audience in assembling unlicensed solar systems.