The value of load following capacity: will increasing renewable share in Europe’s electricity reduce nuclear reactors’ capacity or load factors?

Abstract : Nuclear energy’s low variable cost makes it a base load technology, but variable renewable production has a higher priority on the grid, having a zero marginal cost. Therefore, variable renewable production will reduce load factors of dispatchable technologies. If not able to follow residual load, some more flexible technologies could be preferred to nuclear reactors. In this paper, we study the disregarded load following capacity of nuclear reactors in terms of preserved market share. The hourly variations of variable renewable production are hard to include in a tool with an investment time scale of decades. We use the POLES model (Prospective Outlook for Long-term Energy Systems), coupled with EUCAD (European Unit Commitment and Dispatch), thus enabling a modelling of the supply and demand of energy, resources and power markets at these very different timescales. We present studies of the evolution of the nuclear fleet and its load factor in relation with some key factors such as load following capacities, availability of other technologies (renewables, electricity storage, carbon capture and sequestration) and carbon reduction policies.
Type de document :
Communication dans un congrès
International Congress on Advances in Nuclear Power Plants (ICAPP 2016), Apr 2016, San Francisco, United States. ICAPP 2016, San Francisco, CA, April 17-20, pp.503-508 2016, 〈http://icapp.ans.org/〉
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Contributeur : Emmanuelle Vernay <>
Soumis le : jeudi 21 juillet 2016 - 09:15:23
Dernière modification le : mardi 22 mai 2018 - 21:48:11

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  • HAL Id : in2p3-01347439, version 1

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A. Bidaud, S. Mima, J. Després, D. Heuer, P. Criqui, et al.. The value of load following capacity: will increasing renewable share in Europe’s electricity reduce nuclear reactors’ capacity or load factors?. International Congress on Advances in Nuclear Power Plants (ICAPP 2016), Apr 2016, San Francisco, United States. ICAPP 2016, San Francisco, CA, April 17-20, pp.503-508 2016, 〈http://icapp.ans.org/〉. 〈in2p3-01347439〉

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