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Projected renewables share of global primary energy to 2050 (
Projected renewables share of global primary energy to 2050 (


Greenpeace Aces Renewable Energy Forecasts. Surprised?

Over the past 15 years, many organizations have offered national and global predictions about the future of renewable energy. We’ve seen renewable forecasts from all of these groups:

  • International Energy Agency,
  • Global Energy Assessment Scenario Database,
  • US Energy Information Administration,
  • Bloomberg New Energy Finance,
  • ExxonMobil, and
  • Many others.

All have posted increasing numbers on the issue. However, almost all of their predictions have underestimated the actual growth that wind and solar power have experienced so far. To the surprise of many official participants, the forecasts from Greenpeace, via Meister Consultants Group, Inc., international sustainability analysts and strategy planners, have proven to be the most reliable of all.

Let’s start with the study’s individual results for global wind power and solar PV.

Global cumulative installed wind capacity forecasts to 2015 ( wind numbers tell a pretty impressive story. They summarize five forecasts. Two come from the International Energy Agency’s World Energy Outlook, widely recognized as the premier authority, claimed by the organization to be “the world’s most authoritative source of energy market analysis and projections,” and used by public and private sectors for policymaking, planning, and investment decisions. The Global Wind Energy Council, which speaks for the entire wind energy sector of over 1,500 companies and other organizations in 70+ countries, prepared one of the others. Greenpeace made the other two predictions. Its 2010 Energy Revolution scenario for cumulative installed wind capacity almost exactly parallels the actual growth curve (red line).

Global cumulative installed solar PV capacity forecasts to 2015 ( results for solar PV are even more dramatic, in terms of the future of renewables. This time, findings of two IEA-WEO studies are matched against two predictions from Greenpeace. Both IEA forecasts ended up being far too low, with the 2010 numbers more accurate thanks partly to new policy being implemented. Again, the Greenpeace 2010 Energy Revolution forecast comes out most realistic. In this case, though, actual statistics proved higher, nearly doubling the optimistic Greenpeace formulation.

Doubt about the aggressive Greenpeace Energy Revolution projections sprang from the organization predicating its forecasts on substantial structural, policy, and business changes. A nongovernment environmental organization coordinated from Amsterdam, Greenpeace may be the most visible environmental organization in the world. A group of Canadian and US citizens started the group informally around 1970 to protest nuclear weapons testing in an area of Alaska that had recently experienced a severe earthquake. It officially went international in 1979.

Over the years, many high-profile, often dramatic campaigns by Greenpeace activists (the group’s whaling protests, for example) have brought success, but others have backfired, sometimes spectacularly, as with December’s in-your-face and currently litigated disturbance at the revered Nazca Lines in Peru. However, from a sometimes spotty and disorganized early reputation, Greenpeace has emerged as a trustworthy supplier of very useful information about worldwide environmental trends, as this latest news demonstrates well.

The new report also includes individual statistics and forecasts for each technology in North America, the European Union, and China.

Projected renewables share of global primary energy to 2050 (

Finally, consider a slew of current predictions for renewables in total. All encompass growth, but, again, the Greenpeace numbers (2012) exceed all the others at 2050, with the high-end 2012 International Institute for Applied Systems Analysis GEA scenario closely paralleling them. The Meister organization makes the case that on precedent, Greenpeace’s numbers may prove to be the most accurate for planning purposes. And as The Guardian has pointed out, recent moves by E.ON, China, and other local and global institutions suggest that the changes on which Greenpeace pinned its estimates are already underway.

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covers environmental, health, renewable and conventional energy, and climate change news. She's currently on the climate beat for Important Media, having attended last year's COP20 in Lima Peru. Sandy has also worked for groundbreaking environmental consultants and a Fortune 100 health care firm. She writes for several weblogs and attributes her modest success to an "indelible habit of poking around to satisfy my own curiosity."


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