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Long-term dynamics of investment decisions in electricity markets with variable renewables development and adequacy objectives

Abstract : In liberalised electricity systems, power markets are expected to ensure the long-term coordination of investments in order to guarantee security of supply, sustainability and competitiveness. In the reference energy-only market, it relies on the ability of power markets — where the hourly price is aligned with the marginal cost of the system — to provide an adequate price-signal for investors. However, in practice, questions have been raised about its ability to trigger investments in low-carbon technologies including in particular Renewable Energy Sources of Electricity (RES-E), and its ability to ensure capacity adequacy. After a characterisation of these market failures, this dissertation tackles the two research topics within a methodological framework based on a System Dynamics model developed to simulate private investment decisions in power markets.First, the results show that substituting out-of-market support mechanisms for RES-E by market-based investments helped by the sole implementation of a carbon price appears as a feasible solution to trigger RES-E development providing that there is a political commitment on a high carbon price. Second, it also appears that the energy-only market with price cap is ineffective to ensure capacity adequacy. Adding a capacity market or removing the price cap both bring benefits in terms of loss of load expectation and social welfare. Moreover, the capacity market is identified as the best option for regulators among the considered market designs.
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Submitted on : Monday, February 20, 2017 - 12:35:08 PM
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  • HAL Id : tel-01471847, version 1



Marie Petitet. Long-term dynamics of investment decisions in electricity markets with variable renewables development and adequacy objectives. Economics and Finance. Université Paris sciences et lettres, 2016. English. ⟨NNT : 2016PSLED032⟩. ⟨tel-01471847⟩



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