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Optimal Contracts for Renewable Electricity

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  • Sarah Parlane
  • L. (Lisa B.) Ryan

Abstract

Companies are increasingly choosing to procure their power from renewable energy sources, with their own set of potential challenges. In this paper we focus on contracts to procure electricity from renewable sources that are inherently unreliable (such as wind and solar). We determine the contracts that minimize the cost of procuring a given amount of renewable energy from two risk-averse generators. We contrast outcomes arising when investments are set in centralised and decentralised settings, with the absence of reliability addressed by either issuing orders in excess of what is needed or by investing in improved reliability. Our results suggest that future contracts may be geared towards a greater reliance on order inflation and lower investments in reliability as the cost of renewable energy keeps falling. The implications of these results for grid congestion and electricity spot market prices should be of interest to regulators and transmission system operators.

Suggested Citation

  • Sarah Parlane & L. (Lisa B.) Ryan, 2019. "Optimal Contracts for Renewable Electricity," Working Papers 201920, School of Economics, University College Dublin.
    • Handle: RePEc:ucn:wpaper:201920
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    File URL: http://hdl.handle.net/10197/11087
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    2. Pliego Marugán, Alberto & García Márquez, Fausto Pedro & Pinar Pérez, Jesús María, 2022. "A techno-economic model for avoiding conflicts of interest between owners of offshore wind farms and maintenance suppliers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 168(C).

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    More about this item

    Keywords

    Renewable electricity contracts; Power purchase agreements; Newsvendor model; Risk aversion; Order inflation; Moral hazard;
    All these keywords.

    JEL classification:

    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • D86 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Economics of Contract Law
    • L14 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Transactional Relationships; Contracts and Reputation
    • L24 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Contracting Out; Joint Ventures
    • L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities
    • Q21 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Demand and Supply; Prices

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