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Sobre

Sobre

Nascido em 1967 em Madrid, José Villar é investigador sénior do Centro de Sistemas de Energia do INESC TEC desde 2017, sendo atualmente responsável pela área de Mercados de Eletricidade que se dedica à modelação e regulação dos mercados de eletricidade num contexto de descarbonização e descentralização do sistema energético. Doutorado pela "Escuela Técnica Superior de Ingenieria-ICAI" da "Universidad Pontificia Comillas" (Madrid) em 1997, foi membro do "Instituto de Investigación Tecnológica -IIT" da mesma universidade e subdiretor de 2004 a 2016, e Professor Associado até 2017 na mesma universidade. Participou em mais de 80 projectos de investigação com a indústria e as administrações, e foi co-autor de mais de 140 artigos de investigação em revistas e conferências internacionais. As suas áreas de interesse centram-se na modelização e regulação dos mercados de electricidade, na integração de fontes de energia renováveis e na descentralização do sistema energético.

Tópicos
de interesse
Detalhes

Detalhes

  • Nome

    José Villar
  • Cluster

    Energia
  • Cargo

    Responsável de Área
  • Desde

    01 setembro 2016
019
Publicações

2023

Pricing and Simulating Energy Transactions in Energy Communities

Autores
Mello, J; de Lorenzo, C; Campos, FA; Villar, J;

Publicação
ENERGIES

Abstract
Extensive literature is available for modeling and simulating local electricity markets, often called P2P electricity markets, and for pricing local energy transactions in energy communities. Market models and pricing mechanisms provide simulation tools to better understand how these new markets behave, helping to design their main rules for real applications, and assessing the financial compensations of the internal energy transactions. As such, pricing mechanisms are often needed in energy management systems when centralized management approaches are preferred to market-based ones. First, this paper highlights the links between local electricity markets, pricing mechanisms for local electricity transactions, and other approaches to sharing the collective benefits of participating in transactive energy communities. Then, a standard nomenclature is defined to review some of the main pricing mechanisms for local energy transactions, an innovative pricing mechanism based on the economic principles of a post-delivery pool market is proposed, and other relevant approaches for local electricity market simulation such as Nash equilibrium or agent-based simulation are also revisited. The revision was based on systematic searches in common research databases and on the authors' experience in European and national projects, including local industrial applications for the past five years. A qualitative assessment of the reviewed methods is also provided, and the research challenges are highlighted. This review is intended to serve as a practical guide to pricing mechanisms and market simulation procedures for practical designs of internal financial compensation to share the collective benefits of energy communities.

2023

5. Coordenação com o sistema energético

Autores
Villar, J; Mello, J; Lopes, JP;

Publicação
Comunidades de Energia Renovável

Abstract

2023

A Three-Stage Model to Manage Energy Communities, Share Benefits and Provide Local Grid Services

Autores
Rocha, R; Silva, R; Mello, J; Faria, S; Retorta, F; Gouveia, C; Villar, J;

Publicação
ENERGIES

Abstract
This paper proposes a three-stage model for managing energy communities for local energy sharing and providing grid flexibility services to tackle local distribution grid constraints. The first stage addresses the minimization of each prosumer's individual energy bill by optimizing the schedules of their flexible resources. The second stage optimizes the energy bill of the whole energy community by sharing the prosumers' energy surplus internally and re-dispatching their batteries, while guaranteeing that each prosumer's new energy bill is always be equal to or less than the bill that results for this prosumer from stage one. This collective optimization is designed to ensure an additional collective benefit, without loss for any community member. The third stage, which can be performed by the distribution system operator (DSO), aims to solve the local grid constraints by re-dispatching the flexible resources and, if still necessary, by curtailing local generation or consumption. Stage three minimizes the impact on the schedule obtained at previous stages by minimizing the loss of profit or utility for all prosumers, which are furthermore financially compensated accordingly. This paper describes how the settlement should be performed, including the allocation coefficients to be sent to the DSO to determine the self-consumed and supplied energies of each peer. Finally, some case studies allow an assessment of the performance of the proposed methodology. Results show, among other things, the potential benefits of allowing the allocation coefficients to take negative values to increase the retail market competition; the importance of stage one or, alternatively, the need for a fair internal price to avoid unfair collective benefit sharing among the community members; or how stage three can effectively contribute to grid constraint solving, profiting first from the existing flexible resources.

2023

Integrating flexibility and energy local markets with wholesale balancing responsibilities in the context of renewable energy communities

Autores
Mello, J; Villar, J;

Publicação
Energy

Abstract

2023

A framework for circular energy communities in the agricultural sector with a cogeneration case study

Autores
Guimaraes, P; Moreno, A; Mello, J; Villar, J;

Publicação
2023 19TH INTERNATIONAL CONFERENCE ON THE EUROPEAN ENERGY MARKET, EEM

Abstract
This work exploits the nexus of agricultural activities, water, and electrical and thermal energies to propose a framework to develop efficient circular renewable energy communities for the agricultural sector, by analyzing and optimizing the resources and the energy flows among them, profiting from the energy sources available. In this framework, local industries and agricultural facilities can invest in solar PV plants, livestock residues digestors to produce biogas, and cogeneration plants to supply the thermal and electrical energy needs. A simplified case study is presented, based on using biomass residues from livestock processed in an anaerobic digestor to produce biogas for a cogeneration plant. Their optimal capacities are computed considering the optimal supply of thermal and electrical energy needs and the supply from the public electricity and gas grids.

Teses
supervisionadas

2022

Bringing Post-Quantum Cryptography to Practice

Autor
Luís Alberto Oliveira Rocha Esquível Costa

Instituição
UM

2022

Explainable Deep Machine Learning for Medical Image Analysis

Autor
Alex Gaudio

Instituição
UP-FEUP

2022

Otimização da exploração de redes de distribuição com integração de centrais elétricas virtuais

Autor
Joana Moura Pereira Duro

Instituição
UTAD

2022

Drivers and barriers for implementing the digital transformation in the Portuguese industry

Autor
Diana Raquel Moreira Cardoso

Instituição
UP-FEUP

2022

CONDUC¸A~O EM TEMPO-REAL DE ALGORITMOS MUSICAIS: IMPLEMENTAC¸A~O DE UM SISTEMA MUSICAL INTERATIVO COM O KIN.RHYTHMICATOR

Autor
Diogo Miguel Filipe Cocharro

Instituição
UP-FEUP