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Andrew O'Callaghan
Senior Policy and Programme Evaluator, Sustainable Energy Authority of Ireland (SEAI). Andrew O’Callaghan is a Senior Policy and Programme Evaluator at the Sustainable Energy Authority of Ireland (SEAI). He works on developing evidence and data models to assess the impact of national retrofit and energy efficiency programmes. Andrew has a background in applied psychology and carbon management, and has previously worked in behavioural economics and energy modelling. His work supports the design of more effective and inclusive policies to advance Ireland’s climate and energy goals.
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Bipasha Baruah
Former Analyst.
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Global Hydrogen Review 2026 Investment and innovation
Capital spending on low-emissions hydrogen projects reached nearly USD 7 billion in 2025, nearly double the 2024 level and equal to 0.7% of global investment in energy supply. Investment in electrolysis overtook investment in carbon capture, utilisation and storage (CCUS)-based hydrogen, thanks to a stronger pipeline, higher capital intensity and faster project progress, and could account for around 70% of nearly USD 10 billion in investment in 2026.China and Europe lead committed electrolysis projects, with China accounting for more than 60% of capacity by 2026 and 25% of estimated investment. Europe represents less than 20% of capacity but 45% of…
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Global Methane Tracker 2025 Understanding methane emissions
Methane concentration in the atmosphere continues to rise The concentration of methane in the atmosphere is now over two-and-a-half times above pre-industrial levels. Atmospheric records show that, in relative terms, methane concentrations have been rising more quickly than those of all other major greenhouse gases – and at a rate faster than in any period since recordkeeping began. This growth is mainly due to mounting emissions from human activity, but there are also indications that a warming climate is driving up emissions from natural sources such as wetlands. Methane is responsible for around 30% of the rise…
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Jennifer M. Granholm
Secretary of Energy, United States.
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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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Ed Miliband
Secretary of State for Energy Security and Net Zero.
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Gaston Siroit
OEMLAC Director and Technical Advisor to the Executive Secretary of OLADE. Gastón Siroit is an energy and mining specialist with over twenty years of experience across Latin America and the Caribbean. He currently heads the OEMLAC and serves as Technical Advisor to the Executive Secretary of OLADE, leading regional initiatives on energy transition. His work focuses on regulatory frameworks, climate and energy policies, and project implementation for low-carbon development. Previously, he served as Technology Director at Argentina’s Secretariat of Energy and earlier held senior roles within Total and Shell in Europe, Africa, and South America. He holds engineering degrees from ITBA and INSA Toulouse, and a master’s in project management from Mines Paris - PSL (formerly École des Mines de Paris).OLADE serves as the leading intergovernmental platform for energy dialogue and cooperation in Latin America and the Caribbean, fostering integration, knowledge exchange, and investment to acceler...
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Omar Andrés Camacho
Minister of Mines and Energy, Colombia.
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Terje Lien Aasland
Minister of Energy.
