VG Hnub Ci tau tsim nyob rau hauv Shanghai thaum Lub Ib Hlis 2013, uas tshwj xeeb hauv kev txhim kho hnub ci PV mounting system, tsim, tsim, muag thiab kev teeb tsa.Raws li ib qho ntawm cov kev tshaj lij hnub ci mounting brackets tsum, txij li thaum nws tsim, cov khoom tau raug xa tawm mus rau ntau lub teb chaws thiab cheeb tsam.