Press Release

Energy Intelligence Announces Annual Global Top 100 Green Utilities Rankings

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Energy Intelligence announces the latest ranking of the global Top 100 Green Utilities, which provides detailed insights into the accelerating shift to low-carbon power generation. This ranking of the world's top green power generators is published by EI New Energy and based on companies’ renewable energy portfolios and their greenhouse gas emissions. Top 100 Green Utilities from Energy Intelligence provides data and rankings for 100 leading power generators, accounting for nearly half of the world's capacity.

Key findings:

  • Spanish infrastructure and power generator Acciona tops the ranking for the sixth successive year, followed by five European, three Chinese and one US firm in the Top 10.
  • More utilities, particularly in Europe but also in the US, are committing to carbon neutrality before mid-century.
  • Coal-to-gas switching and renewable investment has triggered dramatic emissions reductions. Emissions per megawatt hour have fallen by 25% over the past decade.
  • Since Energy Intelligence launched the Top 100 in 2011, total non-hydro renewables capacity has more than tripled and now accounts for 12% of the total, up from just 4%.
  • Chinese generators remain the most carbon intensive, despite their heavy investment in carbon-free technologies including renewables and nuclear, due to their huge coal capacity.

“Power companies are continuing to invest in renewable energy, mainly wind and solar, as they assume a leading role in the energy transition, especially in Europe. But the growing commitment to net zero emissions by mid-century is driving a green revolution that is now a global phenomenon,” said Peter Kemp, editor of EI New Energy. “This is reflected in the diversity of companies in the Top 100 and the intensifying pace of their shift toward greener power generation sources.”

Energy Intelligence selected 100 companies from among the largest power generators from around the world. The ranking evaluated their “greenness” according to carbon dioxide emissions per megawatt hour and renewable energy capacity. Rather than approaching the subject by country or region, the report compares individual companies, from both industrialized and emerging markets.

An accompanying analysis draws out key trends and conclusions.


Notes to Editors

To view the full results, including the detailed methodology, click here

To discuss the EI New Energy Top 100 Green Utilities Ranking, contact:
Philippe Roos
Senior Reporter, EI New Energy
+33 6 22 86 37 76/

Peter Kemp
Editorial Director – London
Editor, EI New Energy
+44 (0)7786070290 /

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