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Efficient Renewable Electricity Support: Designing an Incentive-compatible Support Scheme

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  • David Newbery

Abstract

Most existing renewables support schemes distort location and dispatch decisions. Many impose unnecessary risk on developers, increasing support costs. Efficient policy sets the right carbon price, supports capacity not output, ensures efficient dispatch and location. The EU bans priority dispatch and requires market-based bidding, but does not address the underlying problem that payment is conditional on generation, amplifying incentives to locate in windy/sunny sites. This article identifies the various distortions and proposes an auctioned contract to address location and dispatch distortions: a financial Contract for Difference (CfD) with hourly contracted volume proportional to local renewable output/MW, with a life specified in MWh/MW, with long-term transmission contracts based on predicted output-weighted actual or simulated nodal prices. This yardstick CfD delivers efficient dispatch. It assures but limits the total subsidy. It does not over-pay for windy/sunny sites. The revenue assurance allows high debt:equity, dramatically lowering the subsidy cost.

Suggested Citation

  • David Newbery, 2023. "Efficient Renewable Electricity Support: Designing an Incentive-compatible Support Scheme," The Energy Journal, International Association for Energy Economics, vol. 0(Number 3).
    • Handle: RePEc:aen:journl:ej44-3-newbery
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    Citations

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    Cited by:

    1. Frédéric Gonand & Pedro Linares & Andreas Löschel & David Newbery & Karen Pittel & Julio Saavedra & Georg Zachmann, 2024. "Watts Next: Securing Europe’s Energy and Competitiveness - Where the EU’s Energy Policy Should Go Now," EconPol Policy Reports 49, ifo Institute - Leibniz Institute for Economic Research at the University of Munich.
    2. Simshauser, Paul & Newbery, David, 2024. "Non-firm vs priority access: On the long run average and marginal costs of renewables in Australia," Energy Economics, Elsevier, vol. 136(C).
    3. Schlecht, Ingmar & Maurer, Christoph & Hirth, Lion, 2024. "Financial contracts for differences: The problems with conventional CfDs in electricity markets and how forward contracts can help solve them," Energy Policy, Elsevier, vol. 186(C).
    4. Davi-Arderius, Daniel & Jamasb, Tooraj, 2024. "Measuring a Paradox: Zero-negative Electricity Prices," Working Papers 13-2024, Copenhagen Business School, Department of Economics.
    5. Simshauser, Paul, 2024. "On static vs. dynamic line ratings in renewable energy zones," Energy Economics, Elsevier, vol. 129(C).
    6. Lebeau, Alexis & Petitet, Marie & Quemin, Simon & Saguan, Marcelo, 2024. "Long-term issues with the Energy-Only Market design in the context of deep decarbonization," Energy Economics, Elsevier, vol. 132(C).
    7. Mats Kröger, 2024. "Cream-skimming through PPAs – Interactions between Private and Public Long-term Contracts for Renewable Energy," Discussion Papers of DIW Berlin 2092, DIW Berlin, German Institute for Economic Research.

    More about this item

    JEL classification:

    • F0 - International Economics - - General

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