Clean operation and maintenance of photovoltaic panels in Northeast China

What is the cleaning cycle of PV power plants in Thailand?

To determine the cleaning cycle, Mani and Pillai (2010) recommended appropriate cleaning cycle to mitigate the impact of dust based on average temperature, annual precipitation, and latitude of PV power plants. Considering the influence of geographic area, the cycle can be expanded to 2 months in Thailand (Sakarapunthip et al. 2017).

Do photovoltaic systems need maintenance?

The expansion of photovoltaic systems emphasizes the crucial requirement for effective operations and maintenance, drawing insights from advanced maintenance approaches evident in the wind industry. This review systematically explores the existing literature on the management of photovoltaic operation and maintenance.

How to optimize the cleaning cycle of PV power plants?

Cleaning cycle optimization with application of VWSC It is mentioned that PV power plants usually use a fixed cleaning cycle of 3 months, 2 months, or 1 month. Based on the field working conditions, a comparison of the optimal cleaning cycle and the cost evaluation with different cleaning cycles between MDCA and VWSC is given in Table 2.

Are photovoltaic power plants causing dust pollution in China?

The photovoltaic (PV) power plants installed in the northwest and northeast areas of China have a serious dust pollution problem.

How much does dust on PV power modules cost in China?

The annual cost resulting from dust on the PV power modules in China was estimated to be $0.0161–0.0222 million per MW with current fixed cleaning cycle and wet cleaning technology. However, the annual cost could be reduced to 36.5–50.3% by using the optimized cleaning cycle and applying dry cleaning technology.

Does cleaning affect PV performance?

Cleaning can remove dust, and the effect of cleaning on PV performance resembles that of maintenance. In this article, we propose a hybrid cleaning scheduling policy with periodic planning and dynamic adjustment for refining the operations and maintenance of PV systems.