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Contributor
Melanie Slade
Senior Programme Manager, Energy Efficiency in Emerging Economies Programme. Melanie Slade has spent thirty years in energy efficiency policy development and implementation in many parts of the world. She started out working in the UK Government on industrial and appliance energy efficiency and has worked with many other governments to establish similar programmes, perhaps most notably, the Government of China since the 1990s. In 2007 Mel became the Chair of Australia and New Zealand’s Equipment Energy Efficiency programme and where she led the phase-out of inefficient lighting. Mel moved to the International Energy Agency in February 2014 to manage the Energy Efficiency in Emerging Economies Programme. Mel and her team work with policy makers in Brazil, China, India, Indonesia, Mexico, South Africa and Thailand to develop more effective energy efficiency policy, track its progress and assess its potential.
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Contributor
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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Data set
World Energy Investment 2023 Datafile
The World Energy Investment 2023 datafile includes world and regional investment data for supply (fossil fuels, renewables, electricity networks, other) and end-use (energy efficiency, renewables and other).
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Contributor
Bruno Idini
Energy Analyst. Bruno Idini leads the IEA’s work on SDG 7 within the World Energy Outlook team. He was one of the lead authors on the IEA’s Africa Energy Outlook, and the IEA’s World Energy Employment among other reports. He coordinates IEA’s co-custodianship on Tracking Progress on Sustainable Development Goal 7. Bruno also supports senior management engagement with external partners, drafting speeches and briefing notes. Prior to joining the IEA, Bruno carried out various research projects on energy, including on small-scale hydropower systems in Peru, and the opportunities and challenges for solar PV in Ghana.
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Contributor
Norihiko Saeki
Director for CCUS Policy, Ministry of Economy, Trade and Industry of Japan. Norihiko Saeki serves as the Director for CCUS Policy, the Agency for Natural Resources and Energy (ANRE), the Ministry of Economy, Trade and Industry of Japan (METI). He is responsible for formulating national strategy for Carbon Capture, Utilization and Sequestration (CCUS) in the Japanese government and currently engaged in drafting CCUS Business Act and CCUS Diplomacy as well. Prior to assuming this duty, Mr. Saeki was the Executive Director at Japan External Trade Organization (JETRO) Los Angeles office and oversees and coordinates the collaboration program of “J-Bridge”. He holds a Bachelors degree from the University of Tokyo, has been a visiting scholar at Johns Hopkins University SAIS and completed the Mamagement Acceleration Program at the Anderson School of Management UCLA.
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Data set
World Energy Investment 2022 Datafile
World and regional investment data for supply and end-use The World Energy Investment 2022 datafile includes world and regional investment data for supply (fossil fuels, renewables, electricity networks, other) and end-use (energy efficiency, renewables and other). A full set of figures from the report is also available for download below.
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Data set
World Energy Investment 2024 Datafile
The World Energy Investment 2024 datafile includes world and regional investment data for supply (fossil fuels, renewables, electricity networks, other) and end-use (energy efficiency, renewables and other).
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Data tool
13 Aug 2025
Real-Time Electricity Tracker
Explore and compare real-time data on electricity demand, generation and spot prices, trade, and CO2 emissions from more than 50 sources