Yingli Green Energy Holding Co. Ltd. says that its wholly owned subsidiary, Yingli Energy (China) Co. Ltd., is now authorized to conduct in-house Underwriters Laboratories (UL) certification testing for solar modules under the latter's Client Test Data Program (CTDP).
Yingli Green Energy's UL certification testing will now take place at the company's Baoding, China-based laboratory facilities. Yingli Green Energy says it obtained CTDP certification after passing an assessment by UL, which will audit all test results. The company says its laboratory facilities and procedures are also subject to annual assessment by UL.
