Despite record global energy investment reaching $3.3 trillion, energy transition progress is fragmenting as geopolitical tensions, infrastructure bottlenecks and rising energy demand expose vulnerabilities in the global transition.

Written by the World Economic Forum in collaboration with Accenture, the Energy Transition Index 2026 tracks energy transition progress across 120 countries, measuring both how energy systems perform today and whether the conditions for future progress are in place – with weakening policy certainty and financing conditions emerging as the sharpest constraints on momentum.

Case studies from several countries demonstrate how targeted investment, grid modernization and clean-energy policy can strengthen resilience and accelerate delivery. The report argues that deployment alone is no longer sufficient – the policy, financial and infrastructure conditions that sustain it are weakening, and closing that gap is the defining challenge of the next phase of the transition.

Report by the World Economic Forum