PARIS, July 26 — On the global energy map, a tectonic shift has now become official. According to the International Energy Agency, in 2023 renewable energy sources surpassed coal as the largest source of global electricity generation for the first time on record. Renewables accounted for 30% of the world’s electricity, while coal fell to 27%, down from 30% the previous year.
Against this backdrop, the numbers tell a story of sustained momentum. Global renewable capacity additions reached a record 507 gigawatts in 2023, driven overwhelmingly by solar photovoltaics and wind.
China alone added 216 gigawatts of solar PV, while the European Union installed 56 gigawatts. The IEA’s ‘Electricity 2024’ report forecast that renewables will exceed 35% of global generation by 2025. As of mid-2026, whether that exact threshold has been reached remains unconfirmed, but the underlying trajectory is unmistakable.
The Drivers: Cost and Policy
What made this possible is a dramatic cost decline. Solar PV module costs have fallen by 90% since 2010, making utility-scale solar cheaper than new coal-fired capacity in most markets. Policy support, notably the Paris Agreement adopted in 2015, provided the framework for national renewable targets and incentives.
IEA Executive Director Fatih Birol stated that the transition is accelerating, a sentiment that resonates in European corridors where energy security has become a strategic priority since the war in Ukraine reshaped gas supplies. For Europe, the wider picture is one of both opportunity and caution.
The 56 gigawatts of solar PV installed by the EU in 2023 represent a significant leap, driven by national subsidy schemes, falling costs, and a political consensus around reducing dependence on imported fossil fuels. Yet the pace required to meet the bloc’s own clean-energy targets demands that this growth continue year after year. What is at stake is not merely a statistical milestone but a structural reordering of how power is generated, traded, and priced across the continent.
Regional Divides Remain
The global story, however, is not uniform. Coal still dominates in several regions, including Southeast Asia and parts of Africa, where coal-fired generation remains the backbone of power systems. In those areas, affordability, existing infrastructure, and industrial policy tie grids to coal, even as the cost of solar continues to fall.
The IEA’s data underscore that the transition, while real, is uneven: the same forces that have propelled renewables to global leadership in generation share have not yet fully reached every corner of the world. For policymakers in Brussels, Berlin, and Rome, the lesson is double-edged.
The record additions of 2023 prove that renewable deployment can scale rapidly when costs are low and political will is strong. But the continued dominance of coal in fast-growing developing economies means that global emissions from electricity may not fall as quickly as the European share suggests. The Paris Agreement, now a decade old, remains the central diplomatic framework for encouraging that broader shift, though its implementation varies widely.
Looking ahead, the IEA’s forecast that renewables will surpass 35% of global generation by 2025—assuming it holds—would mark another milestone. The cost advantages are now structural; policy support, while sometimes wavering, has become embedded in national energy plans across Europe and Asia.
What remains to be seen is whether the pace of installations in regions still reliant on coal can accelerate, and how the wider geopolitical picture—trade tensions, supply chains for solar panels and batteries—will shape the next phase of this transformation. For now, the record of 2023 stands as a clear signal: the old energy order is no longer ascendant.
Sources
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