Eight years into the new millennium, the PV industry continues to grow by leaps and bounds. New module and inverter manufacturers are entering the market, and the number of PV system installers is growing right
along with the demand. Numerous small residential and large commercial PV systems are being installed in many
states, and all need to be in compliance with the National
Electrical Code (NEC) and any local electrical codes. With new people entering the industry every day, the NEC installation mistakes we have seen in the past will likely
continue. Here are some of the most common ones that should be avoided.