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The impact of increased interconnection on electricity systems with large penetrations of wind generation: A case study of Ireland and Great Britain


  • Denny, E.
  • Tuohy, A.
  • Meibom, P.
  • Keane, A.
  • Flynn, D.
  • Mullane, A.
  • O'Malley, M.


Increased interconnection has been highlighted as potentially facilitating the integration of wind generation in power systems by increasing the flexibility to balance the variable wind output. This paper utilizes a stochastic unit commitment model to simulate the impacts of increased interconnection for the island of Ireland with large penetrations of wind generation. The results suggest that increased interconnection should reduce average prices in Ireland, and the variability of those prices. The simulations also suggest that while increased interconnection may reduce carbon dioxide emissions in Ireland, Great Britain would experience an increase in emissions, resulting in total emissions remaining almost unchanged. The studies suggest that increased interconnection would not reduce excess wind generation. This is because under unit commitment techniques which incorporate wind power forecasts in the scheduling decisions, wind curtailment is minimal even with low levels of interconnection. As would be expected an increase in interconnection should improve system adequacy considerably with a significant reduction in the number of hours when the load and reserve constraints are not met.

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  • Denny, E. & Tuohy, A. & Meibom, P. & Keane, A. & Flynn, D. & Mullane, A. & O'Malley, M., 2010. "The impact of increased interconnection on electricity systems with large penetrations of wind generation: A case study of Ireland and Great Britain," Energy Policy, Elsevier, vol. 38(11), pages 6946-6954, November.
  • Handle: RePEc:eee:enepol:v:38:y:2010:i:11:p:6946-6954

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    References listed on IDEAS

    1. Tuohy, Aidan & Meibom, Peter & Denny, Eleanor & O'Malley, Mark, 2009. "Unit commitment for systems with significant wind penetration," MPRA Paper 34849, University Library of Munich, Germany.
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    2. McInerney, Celine & Bunn, Derek W., 2017. "Optimal over installation of wind generation facilities," Energy Economics, Elsevier, vol. 61(C), pages 87-96.
    3. Doorman, Gerard L. & Frøystad, Dag Martin, 2013. "The economic impacts of a submarine HVDC interconnection between Norway and Great Britain," Energy Policy, Elsevier, vol. 60(C), pages 334-344.
    4. McInerney, Celine & Bunn, Derek, 2013. "Valuation anomalies for interconnector transmission rights," Energy Policy, Elsevier, vol. 55(C), pages 565-578.
    5. Higgins, P. & Li, K. & Devlin, J. & Foley, A.M., 2015. "The significance of interconnector counter-trading in a security constrained electricity market," Energy Policy, Elsevier, vol. 87(C), pages 110-124.
    6. Jan Horst Keppler & Sébastien Phan & Yannick Le Pen & Charlotte Boureau, 2017. "The Impact of Intermittent Renewable Production and Market Coupling on the Convergence of French and German Electricity Prices," Working Papers hal-01599700, HAL.
    7. Higgins, P. & Foley, A.M. & Douglas, R. & Li, K., 2014. "Impact of offshore wind power forecast error in a carbon constraint electricity market," Energy, Elsevier, vol. 76(C), pages 187-197.
    8. Blarke, Morten B. & Dotzauer, Erik, 2011. "Intermittency-friendly and high-efficiency cogeneration: Operational optimisation of cogeneration with compression heat pump, flue gas heat recovery, and intermediate cold storage," Energy, Elsevier, vol. 36(12), pages 6867-6878.
    9. Clancy, J.M. & Gaffney, F. & Deane, J.P. & Curtis, J. & Ó Gallachóir, B.P., 2015. "Fossil fuel and CO2 emissions savings on a high renewable electricity system – A single year case study for Ireland," Energy Policy, Elsevier, vol. 83(C), pages 151-164.
    10. Jorge, Raquel S. & Hertwich, Edgar G., 2013. "Environmental evaluation of power transmission in Norway," Applied Energy, Elsevier, vol. 101(C), pages 513-520.
    11. John Curtis, Valeria Di Cosmo, and Paul Deane, 2014. "Climate policy, interconnection and carbon leakage: The effect of unilateral UK policy on electricity and GHG emissions in Ireland," Economics of Energy & Environmental Policy, International Association for Energy Economics, vol. 0(Number 2).
    12. Newbery, D. & Pollitt, M. & Ritz, R. & Strielkowski, W., 2017. "Market design for a high-renewables European electricity system," Cambridge Working Papers in Economics 1726, Faculty of Economics, University of Cambridge.
    13. Pean, Emmanuel & Pirouti, Marouf & Qadrdan, Meysam, 2016. "Role of the GB-France electricity interconnectors in integration of variable renewable generation," Renewable Energy, Elsevier, vol. 99(C), pages 307-314.
    14. Koltsaklis, Nikolaos E. & Dagoumas, Athanasios S. & Georgiadis, Michael C. & Papaioannou, George & Dikaiakos, Christos, 2016. "A mid-term, market-based power systems planning model," Applied Energy, Elsevier, vol. 179(C), pages 17-35.
    15. Jan Horst Keppler, Sebastien Phan, and Yannick Le Pen, 2016. "The Impacts of Variable Renewable Production and Market Coupling on the Convergence of French and German Electricity Prices," The Energy Journal, International Association for Energy Economics, vol. 0(Number 3).
    16. Aidan Tuohy & Ben Kaun & Robert Entriken, 2014. "Storage and demand-side options for integrating wind power," Wiley Interdisciplinary Reviews: Energy and Environment, Wiley Blackwell, vol. 3(1), pages 93-109, January.
    17. Ciarreta Antuñano, Aitor & Zárraga Alonso, Ainhoa, 2012. "Analysis of volatility transmissions in integrated and interconnected markets: The case of the Iberian and French markets," BILTOKI Biltoki;2012-04, Universidad del País Vasco - Departamento de Economía Aplicada III (Econometría y Estadística).
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    20. Sébastien Phan & Fabien Roques, 2015. "Is the depressive effect of renewables on power prices contagious? A cross border econometric analysis," Cambridge Working Papers in Economics 1527, Faculty of Economics, University of Cambridge.
    21. Tang, Xinhua & Zhou, Jianjun, 2012. "A future role for cascade hydropower in the electricity system of China," Energy Policy, Elsevier, vol. 51(C), pages 358-363.
    22. Mc Garrigle, E.V. & Deane, J.P. & Leahy, P.G., 2013. "How much wind energy will be curtailed on the 2020 Irish power system?," Renewable Energy, Elsevier, vol. 55(C), pages 544-553.
    23. Dutton, Joseph & Lockwood, Matthew, 2017. "Ideas, institutions and interests in the politics of cross-border electricity interconnection: Greenlink, Britain and Ireland," Energy Policy, Elsevier, vol. 105(C), pages 375-385.


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