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Participação estratégica dos parques eólicos nos mercados de eletricidade
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Advisor(s)
Abstract(s)
RESUMO: A União Europeia tem objetivos ambiciosos para o uso maioritário de energias renováveis em todos os setores de atividade, originando uma crescente penetração renovável nos mercados de eletricidade. O mercado diário, desenhado quando predominavam as tecnologias despacháveis, fecha às 12:00 da Europa Central, fazendo com que a geração renovável variável no tempo (VRE) faça licitações usando previsões meteorológicas entre 19 e 43 horas antes da operação em tempo real, dando origem a erros consideráveis nas previsões. O comportamento estocástico e a reduzida previsibilidade das VREs originam problemas nos mercados, especialmente, a redução dos preços de mercado devido às suas ofertas a preço zero, e a necessidade de balanceamento do sistema provocadas pelos seus desvios. Deste modo, através da análise aos resultados de diversos cenários em que se considera a participação ativa dos parques eólicos (PEs) em mercado, verifica-se que só através de alterações profundas nos modelos de mercado será possível garantir a viabilidade económica dos PEs sem incentivos diretos como as tarifas fixas garantidas.
ABSTRACT: The European Union set ambitious targets for the use of renewable energy as the main source of energy in all activity sectors, resulting on a growing renewable penetration in electricity markets. The day-ahead market of electricity closes at 12 noon (CET) and has been designed for dispatchable technologies. So, the variable renewable energy (VRE) has to make bids to this market using meteorological forecasts from 19 to 43 hours before the real-time operation, with significant errors. VREs have problems with the lack of flexibility of the traditional markets, causing deviations that have to be handled using control reserves at high costs. The VRE bids at 0 €/MWh also decrease the liquidity of electricity markets. Thus, analyzing the results of several scenarios it is possible to understand that, when considering the active participation of wind parks in electricity markets, only with relevant changes in the current market designs will be possible to guarantee the economic viability of wind parks without direct incentives as feed-in-tariffs.
ABSTRACT: The European Union set ambitious targets for the use of renewable energy as the main source of energy in all activity sectors, resulting on a growing renewable penetration in electricity markets. The day-ahead market of electricity closes at 12 noon (CET) and has been designed for dispatchable technologies. So, the variable renewable energy (VRE) has to make bids to this market using meteorological forecasts from 19 to 43 hours before the real-time operation, with significant errors. VREs have problems with the lack of flexibility of the traditional markets, causing deviations that have to be handled using control reserves at high costs. The VRE bids at 0 €/MWh also decrease the liquidity of electricity markets. Thus, analyzing the results of several scenarios it is possible to understand that, when considering the active participation of wind parks in electricity markets, only with relevant changes in the current market designs will be possible to guarantee the economic viability of wind parks without direct incentives as feed-in-tariffs.
Description
CIES2020 - XVII Congresso Ibérico e XIII Congresso Ibero-americano de Energia Solar
Keywords
Wind energy Wind parks Electricity markets Models Sceneries
Citation
Algarvio, H... [et.al.] - Participação estratégica dos parques eólicos nos mercados de eletricidade. In: CIES2020: As Energias Renováveis na Transição Energética: Livro de Comunicações do XVII Congresso Ibérico e XIII Congresso Ibero-americano de Energia Solar. Helder Gonçalves, Manuel Romero (Ed.). Lisboa, Portugal: LNEG, 3-5 Novembro, 2020, p. 97-105
Publisher
LNEG - Laboratório Nacional de Energia e Geologia