![]() ![]() The bigger story though is likely yet to come - based on the current pipeline of projects under development and their expected operation dates, electrolyser capacity could reach almost 3 GW by the end of 2023, a more than four-fold increase in total capacity compared to 2022. Electrolyser installed capacity grew by more than 20%, while electrolyser manufacturing capacity grew by more than 25%.This is close to the 15% average compound annual growth needed to fully align with the Net Zero Scenario. Heat pumps saw another record year, with 11% growth in sales.While higher deployment is needed in the Net Zero Scenario, the growth in 2022 represents a clear step forward after capacity additions had remained stable from 2019 to 2021. Nuclear capacity additions grew by 40%, with 8 GW newly installed.And for the first time ever, announced manufacturing capacity for electric vehicle batteries is sufficient to fulfil expected demand requirements in 2030 in the NZE Scenario. Electric vehicle sales grew by 55%, reaching a record high of more than 10 million.Some highlights in 2022 include the following: The momentum towards the clean energy economy is clearly accelerating. Progress on clean energy technology deployment has been very rapid in 2022, even if many components are not yet fully on track at the global level. Solar PV was upgraded in this edition, as the annual growth in generation in 2022 of 26% is now aligned with the average compound annual growth rate needed from now to 2030 in the Net Zero Scenario. Of the over 50 components tracked, in the 2023 edition 3 are evaluated as fully “On track” with the Net Zero by 2050 Scenario trajectory – solar PV, electric vehicles and lighting. The assessed components include technologies, infrastructure, sectors, subsectors and cross-cutting strategies. Progress is assessed at the global level against the Net Zero by 2050 Scenario trajectory for 2030, and recommendations are provided on how they can get "on track" with this pathway. ![]() The IEA’s Net Zero Emissions by 2050 Scenario (NZE) is a pathway for the global energy sector to achieve net zero CO 2 emissions by 2050, while also achieving universal energy access by 2030 and major improvements in air quality. The components assessed include sectors, subsectors, technologies, infrastructure and cross-cutting strategies. The IEA's Tracking Clean Energy Progress (TCEP) assesses recent developments for over 50 components of the energy system that are critical for clean energy transitions.
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