Title:	Temporal Complementarity between Wind and Solar Generation and the Role of Storage for Hybrid Plants
Author(s):	R.A. Campos, L.R. do Nascimento, R. Rüther
Keywords:	Battery Storage and Control, Photovoltaic (PV), Hybrid Power Plant, Wind Complementarity
Topic:	PV Systems and Storage – Modelling, Design, Operation and Performance
Subtopic:	Storage
Event:	37th European Photovoltaic Solar Energy Conference and Exhibition
Session:	5EO.2.2
Pages:	1426 - 1431
ISBN:	3-936338-73-6
Paper DOI:	10.4229/EUPVSEC20202020-5EO.2.2
Price:	0,00 EUR
Document(s):	paper

Abstract/Summary:

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This paper presents a method to evaluate if the optimization of sizing and operation of wind + photovoltaic solar power plants, together with battery-based storage systems, could increase the dispatchability of these energy sources in utility-scale hybrid power plants. For this purpose, a case study with real data from an operating wind farm and an R&D photovoltaic solar plant both installed at the same site in the municipality of Brotas de Macaúbas in the Brazilian Northeast state of Bahia were used to demonstrate the proposed evaluation method. The results showed that in the case study there is a relevant complementarity between wind and solar generation output, with an average annual Pearson Correlation Coefficient of -0.51. The 40% wind and 60% solar hybrid plant was the optimal combination to meet the load. With this combination, the required storage capacity for the temporal matching between hybrid plant generation and load demands was 6% of the generated energy. The results also showed that it is possible to reduce the use of transmission systems due to the temporal complementarity of wind and solar sources, and that storage systems can help in the optimization of transmission infrastructure sizing.