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Statistics report
Sep 2025
Cost of Capital Observatory
…economies, updated with 2023 and 2024 data in July and September 2025.A section with Tools and Analysis to help governments understand and quantify the main underlying risks perceived by investors and financiers in each country.Case Studies with lessons learnt of how policymakers, together with the private sector, development finance institutions and other entities managed to mitigate risks and mobilise capital for clean energy sectors across the emerging and developing world.We hope these resources will help drive policy changes that can lower financing costs in the parts of the world that most need it. Survey documentation Data documentation
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Technology report
Jun 2020
Global EV Outlook 2020
Entering the decade of electric drive? The Global EV Outlook is an annual publication that identifies and discusses recent developments in electric mobility across the globe. It is developed with the support of the members of the Electric Vehicles Initiative (EVI). Combining historical analysis with projections to 2030, the report examines key areas of interest such as electric vehicle and charging infrastructure deployment, ownership cost, energy use, carbon dioxide emissions and battery material demand.
This edition features case studies on transit bus electrification in Kolkata (India), Shenzhen (China), Santiago (Chile) and Helsinki (Finland). The report includes policy recommendations that incorporate…
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Country report
Feb 2024
India Case Study
Cost of Capital Observatory Case Study The Cost of Capital Observatory is an initiative from the IEA, the World Economic Forum, ETH Zurich and Imperial College London. The aim of the Observatory is to increase transparency in the energy sector and inspire investor confidence, especially in emerging and developing countries where data on financing costs is scarcer.Case Studies include lessons learnt of how policymakers, together with the private sector, development finance institutions and other entities managed to mitigate risks and mobilise capital for clean energy sectors across the emerging and developing world.
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Report
Aug 2021
Evolving Energy Service Companies in China
Evolving Energy Service Companies in China Energy service companies (ESCOs) deliver energy efficiency projects that are financed through the resulting energy cost savings. ESCOs can thus unlock energy efficiency action by addressing barriers related to funding and technical expertise. Despite their potential, many governments still struggle to stimulate development of a market for ESCOs. Evolving Energy Service Companies in People’s Republic of China, (“China” hereafter) provides an overview of how China has built the world’s largest and fastest growing ESCO market over the past decades. This report highlights how the government’s strategic measures to set up key…
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Country report
Dec 2025
China’s Official Energy Finance in Emerging and Developing Economies
…state-owned commercial banks and export credit agencies have taken on a larger role, increasingly through equity investments or guarantees. This shift suggests a move towards a more competitive – yet still state-directed – model of international energy engagement.These changes reflect a financing system adapting to new domestic and global circumstances rather than a withdrawal from China’s overseas energy activity. For clean energy deployment in particular, the evolving pattern presents both opportunities – including expanded equity participation and greater risk-sharing – and challenges linked to uneven availability of concessional or long-tenor finance.This report maps and analyses these changes…
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Fuel report
Oct 2018
Energy Efficiency 2018
Analysis and outlooks to 2040 Energy efficiency can bring significant economic, social and environmental benefits. But while energy efficiency is improving around the world, its positive impact on global energy use is overwhelmed by rising economic activity across all sectors. Efficiency can enable economic growth, reduce emissions and improve energy security. The right efficiency policies could enable the world to achieve more than 40% of the emissions cuts needed to reach its climate goals without new technology. Energy Efficiency 2018 looks at why efficiency’s massive potential remains untapped, and through the new Efficient World Scenario explores what would happen if countries maximized…
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Report
May 2018
Clean Energy Investment Trends 2018
…to provide stakeholders a practical guide for understanding the current clean energy investment environment in India and how the evolution of regulations and risks is impacting where finance is flowing (and where it is not). The results of this investigation would provide policy makers with insights to better manage risks and address regulatory challenges going forward. Based on a granular analysis of project-level data and stakeholder consultations, the project uniquely seeks to triangulate and map the evolution of the risks and opportunities perceived by the three major actors in India’s renewable energy sector that underpin all market activity.
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Country report
Mar 2026
Efficient Grid-Interactive Buildings in India
Status and opportunities This report assesses the opportunities for efficient grid-interactive buildings (EGIBs) to support India’s clean energy transition. EGIBs unite energy efficiency, smart digital technologies and demand-side flexibility, allowing them to optimise energy use, shift or reduce peak demand and better align consumption with renewable energy generation.The buildings sector is central to clean energy transitions in a context where rapidly increasing electricity demand is driven by cooling and appliance use, and the share of variable renewable energy in electricity generation is continuously growing. Without targeted action, unmanaged peak loads and variable supply could jeopardise grid…
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Technology report
Nov 2015
Railway Handbook 2015
Produced in collaboration with the Union Internationale des Chemins de Fer The collaboration of the IEA and the UIC in collecting, elaborating, and presenting activity, energy, and CO2 emissions data was carried out for the fourth time through the release of the Railway Handbook 2015. For this edition, significant methodological improvements were implemented leading to better consistency between the different indicators presented in this Handbook, in addition to updates of the global data, as well as regional breakdowns for those regions that we consider the most relevant from the point of view of transport activity: European Union, USA, Japan, Russia…
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Country report
Sep 2025
Integrating Distributed Energy Resources in China
Lessons from international experience Like no other country in the world, the People’s Republic of China (hereafter, “China”) is witnessing rapid growth in distributed energy resources (DERs), including rooftop solar photovoltaics, battery storage and electric vehicle (EV) chargers. As China advances towards its carbon peaking and neutrality goals, these resources offer a unique opportunity to support a more flexible, efficient and resilient power system, provided their integration is well-managed.This report analyses recent trends in DER deployment across China and highlights the emerging challenges their growth poses for power system planning and operation, calling for renewed attention to…