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The cost of debt of renewable and non-renewable energy firms

Abstract

The risks imminent to younger technologies and markets may hinder renewable energy firms’ access to financing. This could curtail the investment needed for the transformation of the global energy sector. However, comprehensive analyses of the cost of debt of renewable and non-renewable energy firms are lacking. Here, we empirically analyse the differences between the costs of debt of firms developing and producing renewable energy technologies and of non-renewable energy firms. We use global micro-level data on individual loans matched to firm-level data. The results suggest that renewable energy firms might face a higher cost of debt initially, when technologies and markets are young and immature. However, a cost advantage of renewable energy firms emerges over time. The results also show that the costs of debt of renewable energy firms are lower in economies with a more developed banking sector and comparatively stringent environmental policies.

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Fig. 1: Costs of debt of renewable energy and non-renewable energy firms.
Fig. 2: Costs of debt of renewable energy firms relative to non-renewable energy firms.
Fig. 3: Costs of debt and environmental policy stringency.
Fig. 4: Costs of debt and financial sector development.

Data availability

The data that support the findings of this study are available from Bloomberg and S&P Global Market Intelligence, but restrictions apply to the availability of these data, which were used under licence for the current study, and so are not publicly available. Country data on environmental policy stringency are available from the OECD Environmental Statistics36. Country data on the development of financial institutions are available from the IMF (ref. 38). The data that support the figures and other findings within this Article are, however, available from the authors upon reasonable request and with permission of Bloomberg and S&P Global Market Intelligence.

Code availability

The Stata code can be obtained from the authors upon reasonable request.

References

  1. 1.

    Best, R. Switching towards coal or renewable energy? The effects of financial capital on energy transitions. Energy Econ. 63, 75–83 (2017).

    Article  Google Scholar 

  2. 2.

    Egli, F., Steffen, B. & Schmidt, T. S. A dynamic analysis of financing conditions for renewable energy technologies. Nat. Energy 3, 1084–1092 (2018).

    Article  Google Scholar 

  3. 3.

    Kempa, K. & Moslener, U. Climate policy with the chequebook – an economic analysis of climate investment support. Econ. Energy Environ. Policy 6, 111–129 (2017).

    Article  Google Scholar 

  4. 4.

    Polzin, F. Mobilizing private finance for low-carbon innovation – s systematic review of barriers and solutions. Renew. Sustain. Energy Rev. 77, 525–535 (2017).

    Article  Google Scholar 

  5. 5.

    Ghoul, S. E., Guedhami, O., Kwok, C. C. & Mishra, D. R. Does corporate social responsibility affect the cost of capital? J. Bank. Financ. 35, 2388–2406 (2011).

    Article  Google Scholar 

  6. 6.

    Bauer, R. & Hann, D. Corporate environmental management and credit risk. SSRN https://doi.org/10.2139/ssrn.1660470 (2010).

  7. 7.

    Chava, S. Environmental externalities and cost of capital. Manag. Sci. 60, 2223–2247 (2014).

    Article  Google Scholar 

  8. 8.

    Valta, P. Competition and the cost of debt. J. Financ. Econ. 105, 661–682 (2012).

    Article  Google Scholar 

  9. 9.

    Haas, C. & Kempa, K. Low-carbon investment and credit rationing. SSRN https://doi.org/10.2139/ssrn.3521332 (2020).

  10. 10.

    Carpenter, R. E. & Petersen, B. C. Capital market imperfections, high-tech investment, and new equity financing. Econ. J. 112, F54–F72 (2002).

    Article  Google Scholar 

  11. 11.

    Guiso, L. High-tech firms and credit rationing. J. Econ. Behav. Organ. 35, 39–59 (1998).

    Article  Google Scholar 

  12. 12.

    Revest, V. & Sapio, A. Financing technology-based small firms in Europe: what do we know? Small Bus. Econ. 39, 179–205 (2012).

    Article  Google Scholar 

  13. 13.

    Howell, S. T. Financing innovation: evidence from R&D grants. Am. Econ. Rev. 107, 1136–1164 (2017).

    Article  Google Scholar 

  14. 14.

    Bharath, S. T., Dahiya, S., Saunders, A. & Srinivasan, A. Lending relationships and loan contract terms. Rev. Financ. Stud. 24, 1141–1203 (2011).

    Article  Google Scholar 

  15. 15.

    Jiménez, G. & Saurina, J. Collateral, type of lender and relationship banking as determinants of credit risk. J. Bank. Financ. 28, 2191–2212 (2004).

    Article  Google Scholar 

  16. 16.

    Petersen, M. A. & Rajan, R. G. The effect of credit market competition on lending relationships. Q. J. Econ. 110, 407–443 (1995).

    Article  Google Scholar 

  17. 17.

    Minetti, R. Informed finance and technological conservatism. Rev. Financ. 15, 633–692 (2010).

    Article  Google Scholar 

  18. 18.

    Packham, N. Structured climate financing: valuation of CDOs on inhomogeneous asset pools. SSRN https://doi.org/10.2139/ssrn.3533484 (2020).

  19. 19.

    Geddes, A., Schmidt, T. S. & Steffen, B. The multiple roles of state investment banks in low-carbon energy finance: an analysis of Australia, the UK and Germany. Energy Policy 115, 158–170 (2018).

    Article  Google Scholar 

  20. 20.

    Egli, F., Steffen, B. & Schmidt, T. S. Learning in the financial sector is essential for reducing renewable energy costs. Nat. Energy 4, 835–836 (2019).

    Article  Google Scholar 

  21. 21.

    McCrone, A., Moslener, U., D’Estais, F., Grüning, C. & Emmerich, M. Global Trends in Renewable Energy Investment 2020 (Frankfurt School-UNEP Centre/BNEF, 2020).

  22. 22.

    Ang, G., Röttgers, D. & Burli, P. The Empirics of Enabling Investment and Innovation in Renewable Energy OECD Environment Working Paper No. 123 (OECD, 2017); https://doi.org/10.1787/19970900

  23. 23.

    Brunnschweiler, C. N. Finance for renewable energy: an empirical analysis of developing and transition economies. Environ. Dev. Econ. 15, 241–274 (2010).

    Article  Google Scholar 

  24. 24.

    Haščič, I. et al. Public Interventions and Private Climate Finance Flows: Empirical Evidence from Renewable Energy Financing OECD Environment Working Paper No. 80 (OECD, 2015); https://doi.org/10.1787/5js6b1r9lfd4-en

  25. 25.

    Kim, J. & Park, K. Financial development and deployment of renewable energy technologies. Energy Econ. 59, 238–250 (2016).

    Article  Google Scholar 

  26. 26.

    Steckel, J. C. & Jakob, M. The role of financing cost and de-risking strategies for clean energy investment. Int. Econ. 155, 19–28 (2018).

    Article  Google Scholar 

  27. 27.

    Flammer, C. Corporate green bonds. SSRN https://doi.org/10.2139/ssrn.3125518 (2020).

  28. 28.

    Larcker, D. F. & Watts, E. M. Where’s the greenium? J. Account. Econ. 69, 101312 (2020).

  29. 29.

    Karpf, A. & Mandel, A. The changing value of the ‘green’ label on the US municipal bond market. Nat. Clim. Change 8, 161–165 (2018).

    Article  Google Scholar 

  30. 30.

    Egli, F. Renewable energy investment risk: an investigation of changes over time and the underlying drivers. Energy Policy 140, 111428 (2020).

    Article  Google Scholar 

  31. 31.

    May, N. G. & Neuhoff, K. Financing power: impacts of energy policies in changing regulatory environments. SSRN https://doi.org/10.2139/ssrn.3046516 (2017).

  32. 32.

    Chava, S., Livdan, D. & Purnanandam, A. Do shareholder rights affect the cost of bank loans? Rev. Financ. Stud. 22, 2973–3004 (2009).

    Article  Google Scholar 

  33. 33.

    Goss, A. & Roberts, G. S. The impact of corporate social responsibility on the cost of bank loans. J. Bank. Financ. 35, 1794–1810 (2011).

    Article  Google Scholar 

  34. 34.

    Berg, T., Saunders, A., Steffen, S. & Streitz, D. Mind the gap: the difference between U.S. and European loan rates. Rev. Financ. Stud. 30, 948–987 (2017).

    Article  Google Scholar 

  35. 35.

    Svirydzenka, K. Introducing a New Broad-Based Index of Financial Development IMF Working Paper No. 16/5 (IMF, 2016); https://doi.org/10.5089/9781513583709.001

  36. 36.

    Environmental Policy: Environmental Policy Stringency Index (OECD, accessed January 2020); https://stats.oecd.org/

  37. 37.

    Botta, E. & Koźluk, T. Measuring Environmental Policy Stringency in OECD Countries: A Composite Index Approach OECD Economics Department Working Paper No. 1177 (OECD, 2014); https://doi.org/10.1787/5jxrjnc45gvg-en.

  38. 38.

    Financial Developement Index Database (IMF, accessed January 2020); https://data.imf.org/

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Acknowledgements

The Article benefited from discussions at the 2019 IAEE European Conference and the CARIMA symposium as well as the 2020 conferences of the AERE, EEA, GRASFI and VfS. We gratefully acknowledge the support from the German Federal Ministry of Education and Research within the Call ‘Ökonomie des Klimawandels’ (funding code 01LA1830A: Sustainable Finance and Its Impact (SUFI)). K.K. and O.S. are grateful for the support of the Robert Bosch Foundation.

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K.K., U.M. and O.S. developed the research idea. K.K. and O.S. collected and compiled the data. K.K. took the lead in conducting the econometric analyses in Stata and the presentation of results in tables and figures with significant input from U.M. and O.S. All authors jointly wrote the manuscript.

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Correspondence to Karol Kempa.

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The authors declare no competing interests.

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Peer review information Nature Energy thanks Rohan Best, Julie Byrne and Florian Egli for their contribution to the peer review of this work.

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Supplementary Information

Supplementary Tables 1–10 and Fig. 1.

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Kempa, K., Moslener, U. & Schenker, O. The cost of debt of renewable and non-renewable energy firms. Nat Energy 6, 135–142 (2021). https://doi.org/10.1038/s41560-020-00745-x

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