Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/298523 
Year of Publication: 
2023
Series/Report no.: 
Working Paper No. 2023:8
Publisher: 
Lund University, School of Economics and Management, Department of Economics, Lund
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.
Subjects: 
asymmetric procurement auctions
electricity markets
green certificates
renewable energy
JEL: 
D43
D44
Q48
Document Type: 
Working Paper

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