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              All content Reports Data & Tools News & Events
              Authors Countries Energy system Newsletters Policies Programmes Sectors Topics
                • Energy system

                Aviation

                Country and regional highlights
                Political agreement on net zero targets for aviation has been complemented by fiscal and regulatory policies to promote sustainable aviation fuels
                CO2 emissions
                CO2 emissions from aviation have reached 90% of their pre-Covid-19 peak
                Energy
                Improvements in energy intensity have not been sufficient to counterbalance energy demand growth in recent years
                Activity
                Passenger activity has nearly closed the gap with pre-Covid levels
                Technology deployment
                Innovation
                Policy

                Aviation Jpg
                • Energy system

                Nuclear Power

                A new era for nuclear energy beckons as projects, policies and investments increase
                As the world’s second-largest source of low-emissions electricity after hydropower, nuclear power today produces just under 10% of global electricity supply. Now, fresh momentum around the world has the potential to open a new era for nuclear energy.
                Power generation from the global fleet of nearly 420 active nuclear reactors is set to reach a record high in 2025 as Japan restarts production, maintenance works are completed in France, and new reactors begin commercial operations in various markets, including China, Europe, India and Korea…

                Nuclear Jpg
                • Energy system

                Electric Vehicles

                Global electric car sales continue to break records as affordability improves
                Despite recent economic headwinds that have put pressure on the auto sector, global sales of electric cars have continued to break records as electric models become increasingly affordable. Electric car sales exceeded 17 million globally in 2024, reaching a sales share of more than 20%. Just the additional 3.5 million electric cars sold in 2024 compared with the previous year is more than the total number of electric cars sold worldwide in 2020.
                In 2025, sales of electric cars are expected to surpass 20 million, accounting for over…

                Ev Tall
                • Energy system

                Digitalisation

                Country and regional highlights
                Countries are increasingly preparing their infrastructure for digitalisation
                Energy
                Digital technologies can help increase energy efficiency and reduce emissions across the energy system
                CO2 emissions
                Digital technologies are directly responsible for around 2% of energy-related GHG emissions today
                Technology deployment
                Deployment of smart meters and connected devices continues to grow
                Investment
                Investment in digital grid technologies accelerated in 2022
                Policy

                Shutterstock 1675260034
                • Energy system

                Steel

                Country and regional highlights
                Near zero-emission projects advance fastest in Europe, with some progress for low-emissions facilities globally
                CO2 emissions
                The CO2 emission intensity of steel has been relatively stable in recent years, but needs to drop significantly to align with the NZE Scenario
                Energy
                A reduction in reliance on coal and an increase in electricity use are required to get on track with the NZE Scenario
                Activity
                Material efficiency strategies are required to balance demand growth

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                • Energy system

                Oil

                Oil

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                • Energy system

                Electrification

                Country and regional highlights
                Electrification gains momentum across countries and sectors
                CO2 emissions
                In the Net Zero by 2050 Scenario, from now to 2030 most electrification-related emission reductions occur in transport
                Energy
                The share of electricity in energy demand will need to increase by 4% per year to get on track with the Net Zero by 2050 Scenario
                Technology deployment
                New cars and new houses are the main areas for deployment of electrification technologies
                Policy

                Electrification
                • Energy system

                Appliances and Equipment

                Standards and labelling can lift the average rate of energy efficiency improvement by two to three times
                Based on global evidence from countries with Energy efficiency standards and labelling (EES&L) programmes, the average energy efficiency of new major appliances in these countries can increase two to three times the underlying rate of technology improvement. This can result in average energy reductions of 10-30% over 15 to 20 years in the stock of most regulated products across all countries.
                In leading countries with strong regulations and long-running programmes which are regularly updated, the contribution could be much higher…

                Appliances Jpg
                • Energy system

                Building Envelopes

                Stronger efficiency is the first and best policy to bring down energy bills
                Variations in energy efficiency exist both within and among countries. For example, in some European countries with similar climates it can take twice as much energy to heat the same floor area or within one country the energy consumed between the most efficient and least efficient homes for a given size can vary by a factor of up to three.

                Building Envelopes Jpg
                • Energy system

                Chemicals

                Country and regional highlights
                Important steps to deploy low-emissions chemicals production technologies are being taken in several regions
                CO2 emissions
                CO2 emissions must decouple from production by 2030 to get on track with the NZE Scenario
                Energy
                Energy consumption for feedstock will continue to rise with production, but process energy intensity declines rapidly in the NZE Scenario
                Activity
                Primary chemical production is set to keep growing in the NZE Scenario
                Innovation
                Supporting infrastructure

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