Sure, larger temperatures improve resistance, so you might have to implement a larger wire size in hot environments. That’s why wire sizing is especially critical in DC devices — they run at very low voltages, so even a little drop can appreciably impression general performance. Greater temperatures increase resistance https://elliotfmqvz.jiliblog.com/95768192/pv-cable-size-calculator-how-to-size-solar-wire-4mm²-vs-6mm²