scholarly journals An Assessment of the Optimal Capacity and an Economic Evaluation of a Sustainable Photovoltaic Energy System in Korea

2021 ◽  
Vol 13 (21) ◽  
pp. 12264
Author(s):  
Young Hun Lee ◽  
In Wha Jeong ◽  
Tae Hyun Sung
Keyword(s):  
Economic Evaluation ◽  
Energy Storage ◽  
Storage System ◽  
Energy System ◽  
Energy Storage System ◽  
Pv System ◽  
Photovoltaic Energy ◽  
Pv Systems ◽  
Optimal Capacity ◽  
Battery Energy

The purpose of this study is to conduct an economic evaluation of a photovoltaic-energy storage system (PV–ESS system) based on the power generation performance data of photovoltaic operations in Korea, and to calculate the optimal capacity of the energy storage system. In this study, PV systems in Jeju-do and Gyeongsangnam-do were targeted, PV systems in this area were assumed to be installed on a general site, and the research was conducted by applying weights based on the facility’s capacity. All the analyses were conducted using the actual amount of Korea power exchange (KPX) transactions of PV systems in 2019. In order to calculate the optimal capacity of the power conditioning system (PCS) and the battery energy storage system (BESS) according to global horizontal irradiation (GHI), PV systems with a minimum/maximum/central value were selected by comparing the solar radiation before the horizontal plane for three years (2017–2019) in the location where the PV systems was installed. As a result of the analysis, in Jeju-do, if the renewable energy certificate (REC) weight decreased to 3.4 when there was no change in the cost of installing a BESS and a PCS, it was more economical to link to the BESS than the operation of the PV system alone. In Gyeongsangnam-do, it was revealed that if the REC weight was reduced to 3.4, it was more likely to link to the BESS than the operation of the PV system alone.

scholarly journals Optimization of Battery Energy Storage System Capacity for Wind Farm with Considering Auxiliary Services Compensation

2018 ◽  
Vol 8 (10) ◽  
pp. 1957 ◽  
Author(s):  
Xin Jiang ◽  
Guoliang Nan ◽  
Hao Liu ◽  
Zhimin Guo ◽  
Qingshan Zeng ◽  
...  
Keyword(s):  
Energy Storage ◽  
Wind Power ◽  
Wind Farm ◽  
Storage System ◽  
Energy Storage System ◽  
Battery Energy Storage System ◽  
Battery Energy Storage ◽  
Optimal Capacity ◽  
Battery Energy ◽  
Auxiliary Services

An optimal sizing model of the battery energy storage system (BESS) for large-scale wind farm adapting to the scheduling plan is proposed in this paper. Based on the analysis of the variability and uncertainty of wind output, the cost of auxiliary services of systems that are eased by BESS is quantized and the constraints of BESS accounting for the effect of wind power on system dispatching are proposed. Aiming to maximum the benefits of wind-storage union system, an optimal capacity model considering BESS investment costs, wind curtailment saving, and auxiliary services compensation is established. What’s more, the effect of irregular charge/discharge process on the life cycle of BESS is considered into the optimal model by introducing an equivalent loss of the cycle life. Finally, based on the typical data of a systems, results show that auxiliary services compensation can encourage wind farm configuration BESS effectively. Various sensitivity analyses are performed to assess the effect of the auxiliary services compensation, on-grid price of wind power, investment cost of BESS, cycle life of BESS, and wind uncertainty reserve level of BESS on this optimal capacity.

Optimal Capacity of Battery Energy Storage System and Its Effect of CO2 Reduction

2009 ◽  
Vol 42 (9) ◽  
pp. 92-97
Author(s):  
Yusuke Hida ◽  
Ryuichi Yokoyama ◽  
Kenji Iba ◽  
Kouji Tanaka ◽  
Kuniaki Yabe
Keyword(s):  
Energy Storage ◽  
Storage System ◽  
Co2 Reduction ◽  
Energy Storage System ◽  
Battery Energy Storage System ◽  
Battery Energy Storage ◽  
Optimal Capacity ◽  
Battery Energy

The Energy Management Strategy of Photovoltaic Energy Storage System

2014 ◽  
Vol 1006-1007 ◽  
pp. 727-731
Author(s):  
Feng Di ◽  
Wei Li ◽  
Fu Cheng Liu ◽  
Guang Ru Zhang ◽  
Guo Tao Hui
Keyword(s):  
Energy Storage ◽  
Energy Management ◽  
Management Strategy ◽  
Storage System ◽  
Management Strategies ◽  
Energy Storage System ◽  
Energy Management Strategy ◽  
Photovoltaic Energy ◽  
Complete Set ◽  
Battery Energy

In order to prolong the service life of the battery, ensure the operation efficiency of photovoltaic energy storage system, the establishment of a complete set of battery energy management strategies for photovoltaic energy storage system is very necessary because of the intermittent of solar energy. A strategy based on the state of charge of the battery to realize energy management strategy for photovoltaic energy storage system is proposed in this paper. The simulation verifies the effectiveness of the proposed method and the results show that the method can realize the purpose better.

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