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

                Gas Flaring

                CO2 emissions
                The volumes of natural gas flared in 2022 were around the same level as in 2010
                Technology deployment
                Oil producers have a range of readily available options to reduce and avoid flaring, with a number of new technologies also under development
                Policy
                A number of countries have introduced policies to reduce flaring
                Investment
                Operators that sell high-flaring assets are often passing on a problem to other operators that may be less willing, or less able, to cut down on flaring

                Flaring emissions
                • Energy system

                Light Industry

                Country and regional highlights
                Important investment programmes are being deployed to push energy efficiency and decarbonisation in light industries
                CO2 emissions
                While light-industry emissions have declined since 2010, a more rapid decline is needed to get on track with the NZE Scenario
                Energy
                The share of fossil fuel use is declining, but progress needs to accelerate
                Technology deployment
                Innovation
                Innovation is less pressing than for heavy industry, but will still pay off
                Policy

                Light industry
                • Energy system

                District Heating

                Country and regional highlights
                Momentum for change is growing within the district heating industry
                CO2 emissions
                Decarbonisation efforts have not yet been sufficient to curb associated emissions
                Energy
                Despite large potential for the integration of renewable sources and recycled heat, fossil fuels dominate district heat supplies globally
                Deployment
                The district heating industry is transitioning to lower-temperature networks and integrating renewable energy sources
                Innovation
                Policy

                Shutterstock 1024717066
                • 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
                Private sector strategies
                Policy

                Shutterstock 1675260034
                • Energy system

                Space Cooling

                Country and regional highlights
                Updated energy efficiency standards and new policies target emissions associated with space cooling
                CO2 emissions
                Progress on efficiency and power decarbonisation have not been sufficient to curb emissions growth from rising space cooling demand
                Energy
                In 2022 energy consumption for space cooling further increased by more than 5% from 2021
                Activity
                Technology deployment
                Innovation
                Supporting infrastructure
                Policy
                International collaboration

                Cooling Jpg
                • Energy system

                Rail

                Country and regional highlights
                Europe targets modernisation of the rail network and India rapid electrification, while China is expanding its network with a focus on high-speed rail
                CO2 emissions
                Rail is the least emissions-intensive mode of passenger transport – its expansion will help reduce overall emissions
                Energy
                Expansion of electric trains continues rapidly in the NZE Scenario, particularly to replace diesel-powered freight trains
                Activity
                Innovation
                Policy
                Acknowledgements

                Rail Jpg
                • Energy system

                Behavioural Changes

                Country and regional highlights
                Governments have supported or mandated behavioural changes in buildings and on roads
                CO2 emissions
                Behavioural changes can quickly reduce CO2 emissions
                Activity
                Growth in activity is inevitable as economies develop and populations increase, but behavioural changes can help to offset these increases
                Policy
                Russia’s invasion of Ukraine and the resulting energy crisis have increased the salience of behavioural changes

                Shutterstock 2169900929
                • Energy system

                Electrolysers

                Country and regional highlights
                Progress is spread across different continents, from China, which leads on installed capacity, to the European Union, which have adopted important policies, and other regions like India and the Middle East moving forward with a small number of large-scale projects
                Technology deployment
                Global installed electrolyser capacity reached 1.4 GW at the end of 2023, almost double the one at the end of 2022
                Technology manufacturing
                Innovation
                Policy
                Investment
                Acknowledgements

                Shutterstock 1904183506
                • Energy system

                Cement

                Country and regional highlights
                Major policy developments of the last year hold promise for reducing emissions from the cement sector and increasing public procurement of low-carbon concrete
                CO2 emissions
                Cement emissions remain stubbornly high – the development and deployment of new technologies is essential to get on track with the NZE Scenario
                Energy
                Activity
                Technology deployment
                Innovation
                Supporting infrastructure
                Policy
                International collaboration
                Private sector strategies
                Acknowledgements

                Cement Jpg
                • Energy system

                Lighting

                Country and regional highlights
                Prominent progress in increasing standards and labels for lighting
                CO2 emissions
                CO2 emissions by lighting increased marginally in 2022, despite increased uptake of efficient lamps
                Energy
                Increased energy demand for service lighting more than offset a drop in residential lighting in 2022
                Activity
                Increasing building space and population is driving additional demand for lighting
                Technology deployment
                LED is now the leading lighting technology in homes

                Lighting Jpg
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