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The Impending Power Shift Ignored by Old Fossils

17 February 2017 | Updated 01 January 1970

According to fossil fuel companies, the world will continue to rely on their products for decades. They even have sophisticated scenarios, outlooks and modelling to prove it.

What if they are wrong? New analysis published today by the Carbon Tracker Initiative and Imperial College’s Grantham Institute suggests global demand for fossil fuels could peak by 2020. The power sector would see the most dramatic change, becoming virtually fossil-free by 2040.


Changing assumptions

Oil majors, including Shell and BP, have long published outlooks showing why they think the need for oil and gas will keep growing. Recently, for instance, the annual BP Energy Outlook argued oil demand would continue to grow, despite the rise of electric cars.

Coal firms have also relied on such outlooks to justify new investment. However, these outlooks are frequently criticised for underestimating the pace of change in the energy industry or for downplaying the likelihood of climate action. The International Energy Agency (IEA) has been in the firing line too, with renewable forecasts that keep falling short.

At the heart of the problems lie complex models of the global energy system. These models are set up with a long list of assumptions: How quickly will economies expand? How many people will inhabit the world in 2050? What will it cost to build a wind turbine or solar panel in 2035?

If you change these assumptions, you can radically alter the models’ outlooks for energy.


Peak fossil

It’s one thing to criticise the likes of BP, Shell or the IEA for their assumptions. Carbon Tracker and Grantham have gone a step further, modelling the impact on fossil fuel demand of using different assumptions instead.

Their stand-out finding is that global fossil fuel demand could peak by 2020, if clean technologies get cheaper more quickly than expected and if climate policy is ramped up.

In this scenario, coal use would peak by 2020 and then fall to 60% below 2012 levels by 2050. Oil demand would also peak by 2020, ending up 8% lower in 2050. Gas demand would continue growing until 2030 but it too would then peak and decline.

It’s worth emphasising that the new study includes a range of scenarios, each with different assumptions that are laid bare in the report. The authors say this transparency is vital if energy outlooks – and the business cases that rely on them – are to be interpreted and understood.

The scenario in the case above assumes solar will cost $1.1-1.7 per watt by 2020 and $0.6-0.9/W by 2030. For context, in the US, utility-scale solar costs have already declined from $4.46/W in 2009 to $1.42/W in early 2016. Some forecasts see these costs falling below $1/W by 2020. The scenario assumes battery electric cars, vans and buses will be as cheap as or cheaper than, standard models by 2020. For comparison, Bloomberg New Energy Finance says electric vehicles (EVs) will be cheapest by 2022.

It also represents 'strong' climate policies using a global carbon price of $50 per tonne of CO2, rising by 5% per year. Existing climate commitments would be roughly equivalent to a lower level of $30/tCO2, the study says. Note that models typically use carbon pricing as a proxy for the impact of all other climate policies, which are hard to model directly.


Power shift

The study finds virtually no role for coal or gas with carbon capture and storage (CCS) in the power sector, because renewables are assumed to be cheaper. CCS could still be important for industry, the study suggests.



Energy firms have been criticised for being slow to adjust their outlooks in response to changing circumstances. They say that the world will continue to rely on coal, oil and gas for decades to come and that the energy sector, like an oil tanker, is slow to change course.

Current research suggests that they could be wrong and that global demand for fossil fuels could soon start to decline. It does so by using different, but still plausible assumptions about the future path of technology costs and climate policy.

Picture: Are energy companies just a bunch of old fossils?

By Simon Evans of

Article written by Simon Evans of | Published 17 February 2017


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