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Reforming the Colombian electricity market for an efficient integration of renewables: a proposal

P. Mastropietro, P. Rodilla, L. Escobar Rangel, C. Batlle

The Colombian short-term electricity market is characterised by a single settlement and by the clearing of a single national hourly spot price for the entire grid. This price is computed ex post, based on the real-time operation of the system. In the day ahead, there is only an operational dispatch, which does not set any binding economic commitment. A deviation from such dispatch (due, for instance, to an outage), if it is informed in advance, has no economic consequence for market agents. As recognised by Colombian regulatory institutions, this design is not suitable to efficiently integrate large shares of variable renewable resources. This paper presents a regulatory proposal for introducing, in Colombia, a multi-settlement system, consisting of a binding day-ahead market, followed by intraday sessions and a balancing market. The main discussion focuses on how to solve the complexities arising from the introduction of a multi-settlement system in a context where sessions are cleared based on uniform pricing. The paper also analyses the interactions of the proposed design with other aspects of the Colombian power sector regulation (such as the impact of this reform on long-term contracts or on the reliability charge mechanism).


Keywords: Colombian electricity market; Renewable integration; Single settlement; Multi settlement; Binding dispatch; Intraday market; Uniform pricing


Energy Policy. Volume: 139 Issue: 111346 Pages: 1-11

DOI reference: DOI icon 10.1016/j.enpol.2020.111346    

Published on paper: April 2020. Published on-line: February 2020.



Citation:
P. Mastropietro, P. Rodilla, L. Escobar Rangel, C. Batlle. Reforming the Colombian electricity market for an efficient integration of renewables: a proposal. Energy Policy. vol. 139, no. 111346, pp. 1-11, April 2020. [Online: February 2020]


    Topics research:
  • Energy markets design and regulation

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