Surprise! Photovoltaic power station 40% defects because the construction

Solar photovoltaic (pv) net news: recently, optimal release China photovoltaic power station of large data quality defects. This time, solar energy, optimal sampling with during May 2018 to May 2020, operations in the service information, involving 252 terminal, among them, the ground centralized projects accounted for 43%, the total capacity of solar grid, roof distributed project total capacity accounted for 57%.

the samples show shows that the two types of operations per capacity of 100 mw, the roof distributed project in the general defects, important defects and defect of emergency are higher than the ground centralized power stations. But in general defects in two types of terminal and important defects were little changed.

for the construction, design, equipment ( Products) Reasons leading to defects accounted for about 90%, and the defects of construction causes accounted for as high as 40%.

in major construction defects, infrastructure defects most, accounted for up to 25. To 81%, followed by auxiliary equipment defects. The former is mainly on the basis of cracking, aging, collapse, settlement, etc. ; The latter mainly for loose connection is leaking, pipeline protection and so on. (and communications equipment deficiencies cause accidents Or the inspection) The highest percentage, at 42. 86%.

in design defect, unreasonable type selection, design, both defects caused by about 88%. Such as: shade, not operational channel design, daylighting of roof edge is too close, keep out components such as laying no problem; In the ascent and border protection facilities, lack of the design of fire control facilities and so on.

at the same time, China's solar energy network, solar panels, mainstream inverter manufacturers according to the survey of equipment defects of 0. 35%, solar panels, far lower than the manufacturer's defects 2. 65%. Mainstream inverter manufacturer's equipment is more reliable. Defects and automation equipment breakdowns ( The accident or the inspection) The proportion of the highest, up to 81. 82%.

solar photovoltaic network statement: this information is reproduced from the power grid cooperation media or other Internet website, solar photovoltaic network published the article for the purpose of the information, does not mean that agree with his point of view or confirm its description. The article content is for reference only.

this paper statistics the September to today issued a total of 2. 85 gw pv power plant EPC and 1. 9 gw component bid opening information. Among them, the EPC project owner units is given priority to with soe/state, this also reflected from the side, in project bidding and parity, the state-owned enterprises have become the absolute main force. Specifically, CGNPC in development of 410 mw, 603 mw, guangzhou energy saving 220 mw, 345 mw, jin can group the people vote for 200 mw, 190 mw hubei energy group, huaneng power 180 mw