Bonus Payments for Electricity Production from Renewable Energy Sources and the Impact on the Market Participants' Capacity Choice

Kai Flinkerbusch

No 201040, Working Papers from Institute of Spatial and Housing Economics, Munster Universitary

Abstract: Promoting the use of renewable energy sources is a central goal of most industrialized countries. Up to today, xed feedin taris are a commonly used support scheme. However, these have major disadvantages concerning market integration. Thus, more market-conforming solutions come into focus. One of these are bonus payments. Their fundamental characteristic is an augmented market price for the production of electricity from renewable energy sources. This paper takes a closer look at the mechanics of bonus payments in an environment of market power and negative externalities connected to conventional electricity supply. We analyze the market participants' behavior in a long-term context: Suppliers react to an augmented price by adapting their level of capacity. It is an important question whether a social optimum can be reached by means of bonus payments or whether welfare losses occur. We use a two-stage model. In the rst stage, the public sector implements the bonus payment. In the second stage, the suppliers engage in Cournot competition, choosing their prot maximizing level of capacity. We nd that in this setting, bonus payments can strongly increase overall welfare. However, they do not prove to be superior instruments for the promotion of renewable energy as they, like xed feedin taris, have major disadvantages compared to more marketconforming instruments.

Keywords: renewable energy; bonus payments; capacity investment (search for similar items in EconPapers)
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