In 2025, solar energy surged to new heights, becoming the fastest-growing source of electricity globally and helping renewables surpass coal’s share in the world’s power mix for the first time since the early 1900s.
- Solar met 75% of all new global electricity demand in 2025
- Renewables generated 40.9% of global electricity, overtaking coal
- Solar capacity now expands by 1 gigawatt every 15 hours worldwide
What happened
In 2025, global solar power growth reached an unprecedented scale, increasing by approximately 29% in a single year. This record expansion contributed to renewables producing 40.9% of the world's electricity, a historic first that saw them surpass coal's share in the energy mix. The rapid growth of solar power means it now accounts for the majority of new electricity generation worldwide.
China led this expansion, with major contributions from countries across India, Europe, the Middle East, Latin America, and Africa. The increase reflects a combination of technological advances, cost reductions in solar panels, and rising investments aimed at meeting climate goals and enhancing energy security.
Why it feels good
This milestone signals a hopeful turning point in the fight against climate change. Replacing coal and other fossil fuels with cleaner sources like solar significantly cuts greenhouse gas emissions and air pollution, improving public health and helping to limit global warming. Solar's growth shows how sustainable energy solutions can scale rapidly when driven by innovation and commitment.
Additionally, the shift away from fossil fuels supports energy independence for many countries. By increasing domestic renewable capacity, nations reduce their reliance on imported fuels and stabilize energy costs, contributing to economic resilience and a cleaner environment for future generations.
What to enjoy or watch next
Solar’s meteoric rise over the past two decades suggests even greater potential ahead. As technologies continue evolving and scale economies improve, solar could soon become the dominant source powering homes, businesses, and industries worldwide. Following developments in solar storage, grid integration, and supportive policies will be key to maintaining this momentum.
Meanwhile, the global energy demand continues to grow due to electrification in transportation, data centers, and industry. Watching how renewable energy meets this expanding need, alongside advances in wind, hydro, and nuclear power, will provide insight into the ongoing transformation of the global electricity system toward sustainability.