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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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    Cited by:

    1. 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).
    2. Veenstra, Arjen T. & Mulder, Machiel, 2024. "Impact of Contracts for Differences for non-carbon electricity generation on efficiency of electricity market," Energy Economics, Elsevier, vol. 136(C).
    3. Davi-Arderius, D. & Jamasb, T., 2024. "Measuring a Paradox: Zero-Negative Electricity Prices," Cambridge Working Papers in Economics 2451, Faculty of Economics, University of Cambridge.
    4. Simshauser, Paul, 2024. "On static vs. dynamic line ratings in renewable energy zones," Energy Economics, Elsevier, vol. 129(C).
    5. Tourgeman, Miriam & Cohen, Chen & Rubin, Ofir, 2024. "Preserving competition and economic welfare in Israel's PV market," Utilities Policy, Elsevier, vol. 91(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. Paul Simshauser, 2024. "Competition vs. coordination: optimising wind, solar and batteries in renewable energy zones," Working Papers EPRG2419, Energy Policy Research Group, Cambridge Judge Business School, University of Cambridge.
    8. Daniel Davi-Arderius & Tooraj Jamasb, 2024. "Measuring a paradox: zero-negative electricity prices," Working Papers EPRG2413, Energy Policy Research Group, Cambridge Judge Business School, University of Cambridge.
    9. Milstein, I. & Tishler, A. & Woo, C.K., 2024. "The effect of PV generation's hourly variations on Israel's solar investment," Energy Economics, Elsevier, vol. 136(C).
    10. 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.
    11. Kang Hua Cao & Han Qi & Chi-Keung Woo & Jay Zarnikau & Raymond Li, 2024. "Efficient Frontiers for Short-term Sales of Spot and Forward Wind Energy in Texas," The Energy Journal, , vol. 45(6), pages 37-60, November.
    12. 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.
    13. 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).
    14. Qiao, Qiao & Zeng, Xianhai & Lin, Boqiang, 2024. "Mitigating wind curtailment risk in China: The impact of subsidy reduction policy," Applied Energy, Elsevier, vol. 368(C).

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    JEL classification:

    • F0 - International Economics - - General

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