Solar Energy Expands Past Nuclear Output Globally
Global solar electricity generation has expanded rapidly, rising from roughly 1% of the world’s power mix in 2016 to eclipse nuclear power globally, according to figures from the clean energy think tank Ember. Data covering the 12 months through September 2026 showed solar producing 13% more power than all the world’s nuclear plants combined. Dave Jones, co-founder of Ember, described the milestone by noting that “[Solar] generating more electricity than all the world’s nuclear power plants is a pretty insane stat, for sure.”
While nuclear generation has remained relatively flat since 2000, solar installations supplied about three-quarters of the increase in global electricity demand in 2025. Jan Rosenow, a University of Oxford professor of energy and climate policy in the United Kingdom, called solar the engine of the power transition.
Manufacturing Overcapacity Drives Equipment Price Drops
The acceleration of solar deployment is driven largely by sharp drops in equipment costs. Rosenow pointed to massive Chinese manufacturing scale and current overcapacity as factors pushing module prices to record lows, while Jones characterized the market as offensively cheap for buyers.
In regions with expensive fuel and unreliable grids, adoption has surged. Pakistan saw solar’s share of its power mix rise from under 2% in 2019 to 24% in 2026, supported by costly grid electricity and inexpensive solar imports from China. Across Africa, countries are installing roughly 100,000 solar panels per day.
Battery Storage Solves Intermittency Challenges
Declining battery prices are addressing daily intermittency issues, allowing stored energy to bridge the gap between midday generation and evening demand. Rosenow stated that solar combined with storage is routinely cheaper than new fossil plants in sunny regions.
States such as Vermont are initiating grid-linked home battery rollouts alongside solar installations. Meanwhile, Germany and California have approved plug-in balcony solar systems, and agrivoltaics pairing crops with solar panels are expanding to address land-use concerns. Researchers calculated that expanding U.S. wind and solar output generated $249 billion in climate and health benefits between 2019 and 2022 by reducing pollution and energy costs.
Grid Infrastructure Faces Growing Capacity Demands
As generation capacity climbs, experts point to infrastructure limits as the primary upcoming challenge. Rosenow noted that the bigger question is no longer whether solar grows, but whether power systems and institutions can keep pace with the expansion.
Meanwhile, broader energy trends point to surging consumption. A report from the International Energy Agency indicated that global electricity demand is forecast to grow by around 4%, driven by economic activity, air conditioning use during heatwaves, and the uptake of electric vehicles and heat pumps. Keisuke Sadamori, IEA Director of Energy Markets and Security, stated that clean energy’s share must rise at a much faster rate to meet international climate and energy goals.
Worth a look