Dedicated PV quality assurance services firm STS-Certified said it had performed quality inspection services on solar modules totalling over 1.5GW in 2016, with the expectation of almost 3.0GW of inspections in 2017.
STS noted that its inspections were performed mainly in China, which included 8 PV module manufacturers in 12 manufacturing locations. From a total of 1,521.13MW of inspections, STS said that 1,422MW had undergone its 24/7 in-line production witness inspection.
The increase in inspections was primarily due to an increase in employment of engineers. STS noted that it employs more that 50 full-time engineers specialized in PV module quality inspection.