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Global Hydrogen Review 2025 Executive summary
The hydrogen sector continues to grow despite persistent barriers and project cancellations Global hydrogen demand increased to almost 100 million tonnes (Mt) in 2024, up 2% from 2023 and in line with overall energy demand growth. This rise was driven by greater use in sectors that have traditionally consumed hydrogen, like oil refining and industry. Demand from new applications accounted for less than 1% of the total and was almost entirely concentrated in biofuels production. The supply of hydrogen continued to be dominated by fossil fuels, using 290 billion cubic metres (bcm) of natural gas and 90 million tonnes of coal equivalent (Mtce…
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Merab Birungi Byaruhanga
Project Manager and Policy Leader. Eng. Merab Birungi Byaruhanga is the Project Manager & head policy for the Promotion of Renewable and Energy Efficiency Programme at GIZ Energy & Climate cluster. The project focusses on policy interventions to support Government of Uganda in creating an enabling framework in energy sector, promotion of uptake of renewable energy and energy efficiency with private sector, capacity building interventions for public & private sector and inclusion of energy aspects in planning processes for districts.Merab has over 10 years’ experience in implementation of renewable energy, energy efficiency, and climate projects with government, private sector, academia and development partners. She is passionate about mentoring young women in the energy sector.Merab is a registered engineer under the Uganda Institution of Professional Engineers and is a member of the Federation of African Engineering Organization under the Governance committee.
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Multiple Benefits of Energy Efficiency for Business Quality and reputation
Greater efficiency can reduce defects and improve production quality Energy efficiency improvements often involve tighter control and optimisation of production processes. By improving precision and stability in how equipment operates, firms can reduce variability in output and limit the occurrence of defects. These effects are particularly important in manufacturing sectors where small deviations can affect product quality and increase waste.For example, an industrial bakery in Switzerland implemented a highly efficient centralised cooling system with CO₂-refrigerant and advanced controls. The system allowed for a more constant controlled temperature and reduced downtime, improving product quality and consistency, all while reducing…
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Global Energy and Climate Model Techno-economic inputs
The Global Energy and Climate Model (GEC Model) uses macro drivers, techno-economic inputs and policies as input data to design and calculate the scenarios. The values for the different data categories and scenarios used in the GEC Model 2025 can be downloaded here.In particular more details regarding power generation technology costs for the Current Policies Scenario, the Stated Policies Scenario and the Net Zero Emissions by 2050 Scenario can be downloaded in excel format, including detailed projections at the 2050 horizon regarding overnight capital costs, annual O&M costs, efficiencies and other contributors to electricity costs at regional…
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Energy and AI Understanding the energy-AI nexus
Artificial intelligence (AI) has a long history, dating back to at least the 1950s. Over time, it has seen a series of alternating periods of optimism and pessimism (so-called “AI winters”). In recent years, however, AI has been dramatically boosted by several developments and breakthroughs in techniques, costs and technology that have led to the rise of AI in its modern form that we are familiar with today, in particular generative AI. These developments include the massive increase in computing power and decline in cost due to exponential improvements in computing hardware performance; the exponential increase in the availability…
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Prospects for Natural Gas Certification Executive summary
Governments and industry are working to improve resource efficiency and reduce emissions from natural gas supply – from both domestic production and imports – to help deliver on their climate goals, while also looking to improve energy security. One emerging approach is natural gas certification, which can help buyers make more informed decisions by providing independently verified greenhouse gas (GHG) intensity data at select stages of the supply chain, from production and processing to storage and transport, but excluding final consumption. This can support the implementation of best practices throughout the entire supply chain, and help importing countries and regions better understand…
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Global Hydrogen Review 2025 Production prospects to 2030
Only a small fraction of the total project pipeline can realistically start operating by 2030, highlighting policy gaps The potential low-emissions hydrogen production from announced projects that could be available by 2030 has declined compared to in Global Hydrogen Review 2024. With only five years to 2030, and taking into account typical development cycles, which stretch from three to six years, realising the full pipeline of projects seems very difficult. In addition, we estimate that half of the announced projects face deferred start dates compared to the commercial operation date announced by developers. Delays are particularly acute among electrolyser projects…
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Ayisha Siddiqa
Youth Climate Advisor to UN Secretary General (US/Pakistan).
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Pascal Laffont
Chief Legal Counsel. Pascal Laffont took up his duties as Chief Legal Counsel and Secretary to the IEA Governing Board, in June 2012. His previous post was in Doha for the Government of Qatar (2010-2012). Before that, he served in the Energy Charter, Brussels (2001-2010). He started his professional life in legal private practice in London and Hong Kong (1996-2001). He qualified as a lawyer in France and England and is admitted to practise law in England and Hong Kong. Pascal Laffont is a Senior Executive Fellow, Kennedy School of Government, Harvard University.
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Syrine El Abed
Africa Programme Manager.
