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New ETC briefing: Energy productivity improvements make it possible to double GDP while reducing energy demand by a quarter

ETC-Energy-Efficiency

PR Newswire

The Energy Transitions Commission (ETC) today launches Energy Productivity: Increasing efficiency in an expanded, electrified energy system, which highlights a major opportunity for the world to more than double global GDP by 2050, while reducing final energy demand by 24%.

As global prosperity grows, so will demand for energy services, such as mobility, heating, cooling and industrial production. But the ETC's report shows that energy productivity improvements can deliver greatly expanded energy services with less energy input and dramatically reduce reliance on fossil fuels.

  • Energy productivity is the measure of economic output (GDP) generated per unit of energy.
  • Electrification of road transport, building heating and cooking, together with more efficient appliances and smarter material use, makes possible greatly improved energy productivity.
  • This makes it possible to deliver more energy services while cutting costs and reducing the need for land, water, and other natural resources.
  • Governments, businesses and consumers must seize the chance to massively improve energy productivity by replacing inefficient fossil systems with far more efficient electric ones. Squandering this opportunity would increase the energy requirements and costs required to live comfortably, travel, and produce goods.

Growing prosperity with less energy input

Energy-based services are central to rising prosperity. By 2050, kilometres travelled by car could rise 70%; air travel by 150%; cooled floor area could grow by 150%; heated floor area by 25%; and demand for aluminium, petrochemicals, cement, and steel will all expand. Artificial Intelligence (AI) could improve efficiency in some areas, but the rapid growth of AI and data centres could add massive and highly uncertain new energy demand over the next 25 years.

But there are huge opportunities to increase energy productivity over the next 25 years, meeting this demand for increased energy services while using 24% less final energy (the energy used by appliances/vehicles) and 36% less primary energy (the raw energy resource, such as coal, oil, and gas, or wind or sunlight) than today.

"There is a major opportunity to expand energy services and deliver prosperity while using less energy overall, through widespread electrification, appliance efficiency, and smarter material use. These solutions unlock energy productivity, i.e. greater economic value from each unit of energy. If governments act now to introduce supportive policy, global prosperity can double by mid-century while using less energy overall." said Adair Turner, Chair of the Energy Transitions Commission.

Key opportunities for energy productivity improvement:

  • Electrification over fossil fuels:
    • Electric vehicles (EVs) are up to three times more efficient than petrol cars, which convert only 25% of the energy input into energy in the wheels, with the rest wasted as heat. And EV sales are on track to exceed 20 million in 2025 – one in every four new cars worldwide.
    • Heat pumps deliver 3-4 times more heat per unit of energy than gas boilers, because they extract heat from the air. In 2024, global sales reached six million units, out-selling gas boilers in some key markets (e.g., by as much as 30% in the United States).
    • Electric cooking is 4-5 times more efficient than traditional use of biomass and offers major health benefits.
  • Efficient appliances: Replacing old technology with more efficient appliances that deliver the same benefits while using less energy (e.g., air conditioners, vehicles, lightbulbs, industrial motors) could cut global energy demand by around 10% by 2050. This would avoid the need for nearly 30,000 TWh of extra electricity generation (about the total global electricity consumed in 2024).
  • Smarter material use and recycling: Material efficiency and recycling could cut energy needs by 44% in chemicals and plastics, 33% in cement, and 27% in steel, even as total demand for outputs grows. Potential gains are significant, for example, producing aluminium from recycled scrap uses about 90% less energy than new metal.