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access icon free Market value of solar power: Is photovoltaics cost-competitive?

This paper reviews the economics of solar power as a source of grid-connected electricity generation. It is widely acknowledged that costs of solar power have declined, but there is disagreement how its economic value should be calculated. ‘Grid parity’, comparing generation costs to the retail price, is an often used yet flawed metric for economic assessment, as it ignores grid fees, levies, and taxes. It also fails to account for the fact that electricity is more valuable at some points in time and at some locations than that at others. A better yardstick than the retail price is solar power's ‘market value’. This paper explains why, and provides empirical estimates of the solar market value from a literature review, German spot market analysis, and the numerical electricity market model EMMA. At low penetration rates (<2–5%) solar power's market value turns out to be higher than the average wholesale electricity price – mainly, because the sun tends to shine when electricity demand is high. With increasing penetration, the market value declines – the solar premium turns into a solar penalty. In Germany, the value of solar power has fallen from 133% of the average electricity price to 98% as solar penetration increased from zero to 4.7%. This value drop is steeper than wind power's value drop, because solar generation is more concentrated in time. As a consequence, large-scale solar deployment without subsidies will be more difficult to accomplish than many observers have anticipated.

References

    1. 1)
      • 47. Nicolosi, M.: ‘The economics of renewable electricity market integration. An empirical and model-based analysis of regulatory frameworks and their impacts on the power market’. Ph.D. thesis, University of Cologne, 2012.
    2. 2)
      • 48. Sensfuβ, F.: ‘Assessment of the impact of renewable electricity generation on the German electricity sector. An agent-based simulation approach’. Ph.D. thesis, University of Karlsruhe, 2007.
    3. 3)
    4. 4)
      • 54. ISET, Frauenhofer ISE & Meteo Control: ‘Wertigkeit von Solarstrom. Untersuchung im Auftrag des Bundesministeriums für Umwelt’, Institut für Solare Energieversorgungstechnik, 2008, http://www.iset.uni-kassel.de/abt/FB-A/publication/2008/2008_Braun_Staffelstein_Wert_PV_Strom.pdf.
    5. 5)
      • 55. Braun, M., Bofinger, S., Degner, T., Glotzbach, T., Saint-Drenan, Y.-M.: ‘Value of PV in Germany. Benefit from the substitution of conventional power plants and local power generation’. Proc. 23rd European Photovoltaic Solar Energy Conf., Sevilla, 2008.
    6. 6)
    7. 7)
      • 16. Borenstein, S.: ‘The market value and cost of solar photovoltaic electricity production’. CSEM Working Paper, 2008, p. 176.
    8. 8)
    9. 9)
    10. 10)
    11. 11)
    12. 12)
    13. 13)
    14. 14)
      • 34. Kost, C., Schlegl, T., Thomsen, J., Nold, S., Mayer, J.: ‘Stromgestehungskosten Erneuerbarer Energien’, Fraunhofer ISE, 2012, http://www.ise.fraunhofer.de/de/presse-und-medien/presseinformationen/presseinformationen-2012/erneuerbare-energietechnologien-im-vergleich.
    15. 15)
    16. 16)
      • 5. IEA: ‘Tracking clean energy progress 2013’ (International Energy Agency, Paris, 2013a).
    17. 17)
      • 11. BSW: ‘Solarenergie wird wettbewerbsfähig’, Bundesverband Solarwirtschaft, 2011, http://www.solarwirtschaft.de/fileadmin/media/pdf/anzeige1_bsw_energiewende.pdf.
    18. 18)
      • 12. EPIA: ‘Solar photovoltaics competing in the energy sector’, European Photovoltaic Industry Association, 2011, http://www.epia.org/publications/photovoltaic-publications-global-market-outlook/solar-photovoltaics-competing-in-the-energy-sector.html.
    19. 19)
      • 19. E-Bridge, IAEW & BET: ‘Abschätzung des Ausbaubedarfs in deutschen Verteilungsnetzen aufgrund von Photovoltaik- und Windeinspeisungen bis 2020’, report for BDEW, Bonn, 2011.
    20. 20)
      • 38. Joel, G., Vanderwaal, B., Rose, I., Riesz, J.: ‘Integration of solar generation into electricity markets: an Australian national electricity market case study’, IET Renew. Power Gener. (this issue), 2014.
    21. 21)
      • 41. Ueckerdt, F., Hirth, L., Müller, S., Nicolosi, M.: ‘Integration costs and marginal value. Connecting two perspectives on evaluating variable renewables’. Proc. 12th Wind Integration Workshop, London, 2013b.
    22. 22)
    23. 23)
      • 27. ExternE: ‘External costs of energy’, project for the EU commission, 2005, http://www.externe.info.
    24. 24)
      • 22. Lödl, M., Kerber, G., Witzmann, R., Metzger, M.: ‘Comparison of energy storage and grid enforcement in low-voltage distribution grids with a high degree of decentralized generation’. Proc. of VDE-Kongress, Leipzig, 2010.
    25. 25)
      • 49. Sensfuβ, F., Ragwitz, M.: ‘Weiterentwickeltes Fördersystem für die Vermarktung von erneuerbarer Stromerzeugung’. Proc. Seventh Int. Energiewirtschaftstagung, Vienna, 2011.
    26. 26)
      • 13. Koch, O.: ‘Capacity mechanisms’. Paper presented at the 13th European IAEE Conf., Düsseldorf, 2013.
    27. 27)
    28. 28)
      • 4. BSW: ‘BSW Preisindex 1401’, 2014.
    29. 29)
      • 3. Schindler, R., Warmuth, W.: ‘Photovoltaics Report’, Fraunhofer ISE, 2013, http://www.ise.fraunhofer.de/en/downloads-englisch/pdf-files-englisch/photovoltaics-report-slides.pdf.
    30. 30)
      • 1. REN21: ‘Renewables 2014 global status report’. REN21 Secretariat, Paris, 2014.
    31. 31)
      • 42. Milligan, M., Kirby, B.: ‘Calculating wind integration costs: separating wind energy value from integration cost impacts’. NREL Technical Report, 2009, TP-550–46275.
    32. 32)
    33. 33)
      • 21. IEA: ‘The power of transformation – wind, sun and the economics of flexible power systems’ (International Energy Agency, Paris, 2014).
    34. 34)
      • 45. Gowrisankaran, G., Reynolds, S.S., Samano, M.: ‘Intermittency and the value of renewable energy’. NBER Working Paper, 2011, p. 17086.
    35. 35)
      • 32. Mills, A., Wiser, R.: ‘Changes in the economic value of variable generation at high penetration levels: a pilot case study of California’. Lawrence Berkeley National Laboratory Paper, LBNL-5445E, 2012.
    36. 36)
    37. 37)
      • 56. Energy Brainpool: ‘Ermittlung des Marktwertes der deutschlandweiten Stromerzeugung aus regenerativen Kraftwerken’, 2011, http://www.eeg-kwk.net/de/file/110801_Marktwertfaktoren.pdf.
    38. 38)
      • 26. Fischedick, M., Schaeffer, R., Adedoyin, A., et al: ‘Mitigation Potential and Costs’, in Edenhofer, O., Pichs-Madruga, R., Sokona, Y., et al (Eds.): ‘IPCC special report on renewable energy sources and climate change mitigation’ (Cambridge University Press, Cambridge, UK, 2011).
    39. 39)
      • 46. Mills, A.: ‘Assessment of the economic value of photovoltaic power at high penetration levels’. Paper presented to UWIG Solar Integration Workshop, Maui, Hawaii, 2011, http://www.uwig.org/mwg-internal/de5fs23hu73ds/progress?id=XDyBuJov9m.
    40. 40)
      • 33. IEA & NEA: ‘Projected costs of generating electricity’. Int. Energy Agency and Nuclear Energy Agency, Paris, 2012.
    41. 41)
      • 6. IEA: ‘Renewable energy mid-term market outlook’ (International Energy Agency, Paris, 2013).
    42. 42)
      • 44. Hirth, L., Ziegenhagen, I.: ‘Balancing power and variable renewables’. USAEE Working Paper, 2013, pp. 13154.
    43. 43)
    44. 44)
    45. 45)
      • 20. dena: ‘dena-Verteilnetzstudie. Ausbau – und Innovationsbedarf der Stromverteilnetze in Deutschland bis 2030’. Deutschen Energie-Agentur GmbH, Berlin, 2012.
    46. 46)
    47. 47)
      • 36. Hans, S.: ‘Valence of electric energy’, IEEE Trans. Power Appar. Syst., 1973, 92, (1), pp. 248253.
    48. 48)
      • 24. Jägemann, C., Hagspiel, S., Lindenberger, D.: ‘The economic inefficiency of grid parity: the case of German photovoltaics’. EWI Working Paper 13/19, 2013.
    49. 49)
      • 35. Clover, R.: ‘Energy mix in Europe to 2050’. Paper presented at the 2013 EWEA Conf., Vienna, 2013.
    50. 50)
    51. 51)
      • 28. Hirth, L., Ueckerdt, F., Edenhofer, O.: ‘Why wind is not coal: on the economics of electricity’. FEEM Working Paper 2014.039, 2014b.
    52. 52)
      • 58. Hirth, L., Ueckerdt, F.: ‘The decreasing market value of variable renewables: integration options and deadlocks’, in Stolten, D., Scherer, V. (Eds.): ‘Transition to renewable energy systems’ (Wiley, 2013b).
    53. 53)
      • 2. Barbose, G., Darghouth, N., Wiser, R.: ‘Tracking the Sun VI. An historical summary of the installed price of photovoltaics in the united states from 1998 to 2012’. LBNL, report 6350E, 2013.
    54. 54)
      • 23. Fraunhofer IWES: ‘Vorstudie zur integration großer Anteile Photovoltaik in die elektrische Energieversorgung’, Kassel, 2012.
    55. 55)
      • 14. Fraunhofer ISE: ‘Photovoltaics report’, Fraunhofer Institute for Solar Energy Systems, 2013, http://www.ise.fraunhofer.de/mwg-internal/de5fs23hu73ds/progress?id=94T8LFoGsA&dl.
    56. 56)
    57. 57)
    58. 58)
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