the cost of the raw materials increased throughout the year basically the price of polysilicon which...our last portion of our orders in 2017 were booked at the end of 2016 and early 2017 with fixed prices.meanwhile
四季典型日微网风光出力和负荷曲线fig. 8 curve of wt output, pv output and load on typical days表3 电价tab. 3 electricity price...2.2 投资主体多元化微网多元化投资,发电企业、电网企业、供热企业、燃气企业、能源设备制造企业、专业化能源服务企业(energy service company,esco)、用户等均可通过市场准入,参与投资建设微网源