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Bidding behaviour in interdependent markets for electricity and green certificates

Ganhammar, Kajsa LU (2023) In Working Papers
Abstract
Market-based climate policies have received increased attention, making it important to understand how such politically created markets affect competition in the electricity market. This paper focuses on the green certificate policy which financially supports producers of renewably sourced electricity by means of tradable certificates, and develops a simple duopoly model that incorporates both the electricity and the green certificate markets in an auction-based setting. The results suggest that, in case the subsidised technology has a higher expected marginal cost than the conventional technology, the policy can improve competition and efficiency in the electricity market. Conversely, if producers are ex-ante symmetric in their marginal... (More)
Market-based climate policies have received increased attention, making it important to understand how such politically created markets affect competition in the electricity market. This paper focuses on the green certificate policy which financially supports producers of renewably sourced electricity by means of tradable certificates, and develops a simple duopoly model that incorporates both the electricity and the green certificate markets in an auction-based setting. The results suggest that, in case the subsidised technology has a higher expected marginal cost than the conventional technology, the policy can improve competition and efficiency in the electricity market. Conversely, if producers are ex-ante symmetric in their marginal costs, the advantage the policy creates enables the subsidised producer to bid higher at given cost as the probability of winning the electricity auction increases. This is harmful for competition and results in high consumer prices of electricity. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Working paper/Preprint
publication status
published
subject
keywords
asymmetric procurement auctions, electricity markets, green certificates, renewable energy, D43, D44, Q48
in
Working Papers
issue
2023:8
pages
21 pages
language
English
LU publication?
yes
id
5ae3d352-fd2b-4de7-a889-c82d1dc8eb39
date added to LUP
2023-08-23 13:42:22
date last changed
2024-03-08 12:33:02
@misc{5ae3d352-fd2b-4de7-a889-c82d1dc8eb39,
  abstract     = {{Market-based climate policies have received increased attention, making it important to understand how such politically created markets affect competition in the electricity market. This paper focuses on the green certificate policy which financially supports producers of renewably sourced electricity by means of tradable certificates, and develops a simple duopoly model that incorporates both the electricity and the green certificate markets in an auction-based setting. The results suggest that, in case the subsidised technology has a higher expected marginal cost than the conventional technology, the policy can improve competition and efficiency in the electricity market. Conversely, if producers are ex-ante symmetric in their marginal costs, the advantage the policy creates enables the subsidised producer to bid higher at given cost as the probability of winning the electricity auction increases. This is harmful for competition and results in high consumer prices of electricity.}},
  author       = {{Ganhammar, Kajsa}},
  keywords     = {{asymmetric procurement auctions; electricity markets; green certificates; renewable energy; D43; D44; Q48}},
  language     = {{eng}},
  month        = {{08}},
  note         = {{Working Paper}},
  number       = {{2023:8}},
  series       = {{Working Papers}},
  title        = {{Bidding behaviour in interdependent markets for electricity and green certificates}},
  url          = {{https://lup.lub.lu.se/search/files/173489890/WP23_8.pdf}},
  year         = {{2023}},
}