Governments, investors and businesses must seize the opportunity to halve global carbon emissions by 2040 while ensuring economic development and energy access for all, but they must act now to accelerate clean electrification, decarbonization beyond power and energy productivity improvement, says the Energy Transitions Commission (ETC).
The ETC today launched its “Better energy, Greater prosperity” report which argues that it is technically and economically feasible to grow economies and provide affordable, reliable, clean energy for all while meeting the Paris objective of limiting global warming to well below 2°C.
Key conclusions of the report include:
● Falling costs of renewables and batteries make cost-effective, clean electricity unstoppable and essential to the transition to a low-carbon, energy-abundant world.
● There is still untapped potential to improve energy productivity – i.e. the energy- intensity of GDP. Growthof 3% per annum could be achieved with the right policies effectivelyimplemented.
● Rapid progress is now required on other technologies, including bioenergy, hydrogen and all forms of carbon capture and sequestration, to drive complete decarbonization.ButevenwithlargescaleCCSdeployment,whichiscurrentlynot ontrack,fossilfuelsusemustfall30%by2040,withrapiddeclineofunabatedcoal.
“We are ambitious but realistic. Despite the scale of the challenges facing us, we firmly believe the required transition is technically and economically achievable if immediate action is taken,” says Adair Turner, Chair of the ETC.
To put the world on a well below 2˚C pathway, we must decarbonize power generation and extend electrification to a wider set of activities in the transport and buildings sectors. Clean electrification alone could deliver half of the carbon emissions reductions required to reach 20 gigatonnes (Gt) of emissions by 2040.
But we must also decarbonize all the activities which cannot be cost-effectively electrified – such as aviation, shipping, and heavy industries like steel, cement or chemicals – and achieve a revolution in energy productivity. On both of these dimensions, progress is far too slow. To accelerate improvement requires stronger public policies and large-scale public and private investment, urges the ETC.
The transition to low-carbon energy systems would deliver important social benefits – with for instance dramatically improved air quality leading to longer and healthier lives – and economic opportunities related to the development of technologies and innovative business models, says the report.
“This is not just another plan; it’s a better plan. We show how the world can remove barriers to transform challenges into opportunities, not only in advanced economies, but also in emerging countries,” says Ajay Mathur, co-Chair of the ETC.
The report reflects a unique collaboration between the diverse members of the ETC, which brings together fossil fuels, power and industrial companies, alongside investors, environmental NGOs and researchers, from both developing and developed countries. These diverse allies are agreed not only on the importance of cutting global carbon emissions to meet the Paris objectives, but also on how that transition can be achieved while fostering social and economic progress.
The report describes how to cut annual carbon emissions from 36 Gt today to 20 Gt by 2040 (compared to 47 Gt expected by 2040 in a business as usual scenario), and set the stage for the further emissions reductions that will be required in the second half of the century, while ensuring universal access to 80-100 GJ of affordable, reliable and sustainable energy per capita per annum. This can be achieved through four interdependent pathways, says the ETC.
1. Clean electrification - By 2040, half of emissions reductions compared to a business as usual scenario could come from the combination of the decarbonization of power generation and the electrification of a wider set of activities in the transport and buildings sectors. Provided appropriate policies are put in place, it will be possible within 15 years to build power systems that rely on variable renewables for 80/90% of power supply and that can deliver electricity at an all-in cost (including back-up and flexibility needs) of less than $70 per MWh, which is likely to be competitive with fossil fuels based power generation. This reflects the dramatic reductions in the cost of renewables and batteries now being achieved and most likely to continue. Clean electricity should then be used in an increasing range of economic activities, with growing potential to substitute clean electricity for fossil fuels in light vehicle transport andheating.
2. Decarbonization of “hard-to-electrify” sectors – In addition, we will need to cut carbon emissions from activities that cannot be electrified cost-effectively in transport, industry and buildings. This will become increasingly important as the potential for additional clean electrification is exhausted. But the technologies to do that – including bioenergy, waste heat, hydrogen, and the multiple forms of carbon capture and sequestration – are not yet achieving the cost reductions and scale deployment seen in renewables and batteries. Governments and companies need to make significant R&D and initial deployment investments to ensure that these technologies become costeffective.
3. A revolution in the pace of energy productivity improvement - Energy productivity improvementcoulddeliverathirdofrequiredemissionsreductionsby2040,butthiswould demand greatly accelerated energy efficiency progress across the buildings, transport and industry sectors, as well as structural changes in the economy to deliver more economic growth with less energy-intensive goods andservices.
4. Optimization of remaining fossil fuels use - These transitions would result in a 30% decrease in fossil fuels use by 2040, but fossil fuels would still represent up to 50% of final energy demand. Meeting climate objectives therefore also requires a ramp-up in all forms of carboncaptureandsequestration(conversionintoproducts,undergroundstorage,natural carbon sinks). In this context, fossil fuels use should be concentrated in highest value applications, which implies a rapid decrease in unabated coal consumption, a peak of oil in the 2020s and a continued role for gas provided methane leakages are reduced significantly.
The transition to low-carbon energy systems across the world will require faster improvement than in the past 20 years and faster than the INDCs promise. Each year, energy productivity needs to increase by 3% and the share of energy from zero-carbon sources needs to rise at least one percentage point.
Strong public policies will be essential to achieve this. The ETC believes that these must include meaningful carbon pricing, phase-out of fossil fuels subsidies, R&D and deployment support for low-carbon technologies, robust standards and regulations, appropriate market design, and public investment in transport and urban infrastructure.
In addition, the progress implies a major shift in the mix of investments in the energy system: investments in fossil fuels over the next 15 years could be about $3.7 trillion lower than in a business as usual scenario, while investments in low-carbon technologies and more energy- efficient equipment and buildings could increase by $6 trillion and $9 trillion respectively.
This would mean an extra $300-600 billion in annual investment. This does not pose a major macroeconomic challenge in a world where global savings and investment reach $20 trillion annually. But public policies that reduce risk are needed to reduce the cost of capital for long- term sustainable infrastructure investment and extra support will be required for developing countries with the greatest investment requirements and more limited access to capital.
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