Purpose of Review This review paper attempts to give a general overview on the BESS applications that demonstrate a high potential in the past few years, identifying most relevant operators — or providers — with the corresponding placement for such. Together with a description of value proposition schemes, observed trends, and research fields, a collection of relevant project references is gathered. Recent Findings Many publications and communications try to describe the services that battery energy storage systems can provide to each of the stakeholders, even though they might greatly differ based on national regulatory frameworks. The actual most relevant 6 applications in the view of the authors are described in more detail. Summary In this paper, there has been pointed special attention on the BESS opportunities for each operator and their corresponding potential on revenue stacking. Additionally, the most important identified scientific papers for the 6 most important applications in the view of the authors are presented.

The 44.19 MW p concentrator photovoltaic (CPV) power plant CPV 1 in Touwsrivier, South Africa is three years in operation. Lessons learnt for optimizing the power production are presented. The plant configuration is described and the key steps for reliable and efficient operation and maintenance are discussed. By introducing structured operation and maintenance procedures, the produced energy of the plant could be significantly increased. Without these new maintenance procedures the power plant output was less than originally predicted. Eventually, after introducing the proper maintenance concept in July 2017 for the first time, the total produced energy cumulated over a 12 month period was above the predicted modelled energy. This proves the importance to develop and apply site specific structured operation and maintenance procedures.

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