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Detalhes

Detalhes

  • Nome

    José Villar
  • Cluster

    Energia
  • Cargo

    Responsável de Área
  • Desde

    01 setembro 2016
020
Publicações

2022

Conciliating the Settlement of Local Energy Markets with Self-Consumption Regulations

Autores
Mello, J; Villar, J; Saraiva, J;

Publicação
SSRN Electronic Journal

Abstract

2022

Hybridization of CEVESA MIBEL market model based on market outcomes

Autores
Oliveira A.R.D.; Navega V.; Collado J.V.; Saraiva J.T.; Campos F.A.;

Publicação
International Conference on the European Energy Market, EEM

Abstract
Fundamental electricity market models tend to underestimate the real market prices because they do not properly represent the real variable production cost of the generation units, nor the strategic markup that generation companies add to their costs to price the offered energy. This markup can increase bid prices above the marginal cost of the generation units, which may leave bids out of the market, decreasing the total cleared production, but increasing the final market price. This paper proposes a simple procedure, based on the real market outcomes, to estimate these markups and improve CEVESA MIBEL market model by reducing the gap between the simulated and the real market prices.

2022

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

Autores
Mello, J; Villar, J;

Publicação
TECHNOLOGIES, MARKETS AND POLICIES: BRINGING TOGETHER ECONOMICS AND ENGINEERING

Abstract
Final consumers can be organized in collective self-consumption structures and energy communities to share and trade among them the energy they produce locally and can also be potential providers of flexibility services to the grid. However, the integration of local and wholesale electricity markets is still a matter of development, demanding innovative solutions that consider, among other things, the impact of the energy transfers from the activated flexibility on the balancing responsible parties' portfolio in the context of the wholesale settlement rules. This work proposes an innovative design for the integration of local energy markets and local flexibility markets based on the current collective selfconsumption regulation in Portugal. The main roles and contractual framework are defined and the energy transfer of activated flexibility between aggregators and retailers is tackled using regular LEM energy transfers.

2022

Concept and design of a Real Time Walrasian Local Electricity Market

Autores
Mello, J; Villar, J; Saraiva, JT;

Publicação
International Conference on the European Energy Market, EEM

Abstract
This paper proposes a real time Walrasian based market design for local electricity trading, considering the roles of the different players, the settlement procedures, and the necessary balance responsibilities with the wholesale market under collective self-consumption rules. A Walrasian mechanism based on consecutive auctions for very short delivery periods is proposed, where the auctioneer defines a price for each of these delivery periods to which peers react by generating and consuming accordingly and informing if they trade with the auctioneer or with their retailer or aggregator. This market has no energy purchase contracts, and energy is billed based on each peer's generation or consumption for each delivery period with the price defined by the auctioneer. © 2022 IEEE.

2022

Grid flexibility services from local energy markets: a three-stage model

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

Publicação
TECHNOLOGIES, MARKETS AND POLICIES: BRINGING TOGETHER ECONOMICS AND ENGINEERING

Abstract
This paper proposes an energy community management system for local energy sharing with grid flexibility services to solve the potential grid constraints of the local distribution network. A three-stage model is proposed. Stage 1 is the individual minimization of the energy bill of each prosumer by optimizing the schedules of its battery. The second stage optimizes the energy bill of the energy community by sharing internally the prosumers energy surplus and re-dispatching their batteries, while guaranteeing that each new individual prosumer energy bill is always equal or less than its stage 1 bill. The third stage is performed by the DSO to solve the grid constraints by re-dispatching the batteries, curtailing local generation or reducing consumption. Stage 3 minimizes the impact on stage 2 by minimizing the loss of profit or utility of every prosumer which is compensated accordingly.

Teses
supervisionadas

2018

Online Network Analysis of Stock Markets

Autor
Pedro Miguel Pereira Mota da Costa

Instituição
UP-FEP

2018

Multiple level association rules in a distribution company

Autor
Rita Isabel Mota Carrinho

Instituição
UP-FEP

2018

Towards a Live Development of IoT Systems

Autor
Nuno Guilherme Matos de Barros

Instituição
UP-FEUP

2018

Learning Analytics of K-means Clustering: A Pilot Study

Autor
Tânia Sofia Monteiro Duarte

Instituição
UP-FEP

2018

Smart Collision Avoidance System for a Dual-Arm Manipulator

Autor
Inês Pinto Frutuoso

Instituição
UP-FEUP