Optimization of Energy Allocation Strategies in Spanish Collective Self-Consumption Photovoltaic Systems

Ana Ogando-Martínez, Xela García-Santiago, Saúl Díaz García, Fernando Echevarría Camarero, Gonzalo Blázquez Gil and Pablo Carrasco Ortega ()
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Ana Ogando-Martínez: Energy Division, Galicia Institute of Technology (ITG), 15003 A Coruña, Spain
Xela García-Santiago: ICT Division, Galicia Institute of Technology (ITG), 15003 A Coruña, Spain
Saúl Díaz García: ICT Division, Galicia Institute of Technology (ITG), 15003 A Coruña, Spain
Fernando Echevarría Camarero: Energy Division, Galicia Institute of Technology (ITG), 15003 A Coruña, Spain
Gonzalo Blázquez Gil: ICT Division, Galicia Institute of Technology (ITG), 15003 A Coruña, Spain
Pablo Carrasco Ortega: Energy Division, Galicia Institute of Technology (ITG), 15003 A Coruña, Spain

Sustainability, 2023, vol. 15, issue 12, 1-17

Abstract: Collective self-consumption (CSC) systems offer a great opportunity to increase the viability of photovoltaic installations by reducing costs and increasing profitability for consumers. In addition, CSC systems increase self-sufficiency (SS) and self-consumption (SC). These systems require a proper energy allocation strategy (EAS) to define the energy distribution within the CSC. However, most EASs do not analyze the individual impact of the rules and mechanisms adopted. Therefore, six different EASs are proposed and evaluated in terms of both collective and individual cost, SC, and SS. The results show that the EASs based on minimizing collective costs are the most beneficial for the community, although they imply an unfair distribution of energy among users. On the other hand, the other EASs proposed stand out for reaching an equilibrium in terms of cost, SS, and SC, although the collective profitability is lower. The best results are achieved considering dynamic coefficients, which are preferred over static ones.

Keywords: collective self-consumption; Spanish self-consumption regulation; energy allocation strategies; allocation keys; optimization of allocation coefficients (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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