(Feb. 1, 2012) - As a result of the cooperation between Vacon Plc and CEI (China National Electric Apparatus Institute Co), CEI has received the Golden Sun Certificate approved by the China National Quality Certification Center (CQC) for their 200 kW solar inverter on Dec. 15, 2011. This major milestone in the cooperation between CEI and Vacon will allow CEI to participate in the bidding for the Golden Sun solar program run by the Chinese government.