In realising the decarbonisation of the global energy system, renewables would account for about half of total emission reductions in 2050, with another 45% coming from increased energy efficiency and electrification. 

A working paper by the International Renewable Energy Agency (IRENA) considers how renewables and energy efficiency can work together to contribute to global energy decarbonisation by 2050. It also looks and how this synergy affects energy system and technology cost, and the effect it has on air pollution and avoidance of adverse health effects caused by these pollutants. 

The paper looks in detail at the five largest energy users – China, Germany, India, Japan and the United States – up to 2030. Together, these five countries represent two-thirds of the G20’s primary energy supply and around half of global energy demand. 

See the working paper Synergies between renewable energy and energy efficiency.

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