For the first time in recorded energy history, more new electricity-generating capacity came from renewable sources than from fossil fuels and nuclear power combined. The International Energy Agency confirmed in 2016 C.E. that renewables — led by solar and wind — accounted for more than half of all new power capacity added globally the previous year. It was a quiet turning point, easy to miss in the daily noise of energy politics, but it marked a shift decades of investment and policy had been building toward.
Key findings
- Renewable energy capacity: Renewables made up roughly two-thirds of all new power capacity added worldwide in 2015 C.E., the year covered by the IEA report released in 2016 C.E.
- Solar power growth: Solar additions alone reached a record high, with more solar capacity installed than any other single energy technology that year.
- Wind energy expansion: Wind power added more capacity globally than any previous year on record, with China leading installations by a wide margin.
What drove the shift
The story behind the numbers is one of compounding progress. The cost of solar photovoltaic panels had fallen by more than 80% over the previous decade. Wind turbine costs had dropped sharply too. What once required heavy government subsidy was becoming the cheapest option in many markets on pure economics alone.
China played an outsized role. By 2016 C.E., it was the world’s largest installer of both solar and wind capacity, driven by serious air quality concerns in its major cities and a strategic national investment in clean energy manufacturing. Germany’s Energiewende policy had shown that a large industrial economy could sustain high shares of renewables on its grid. Denmark was regularly running on more than 100% wind power for short periods. These weren’t experiments anymore — they were working systems.
Emerging economies were part of the picture too. Countries across Africa and South Asia were leapfrogging fossil fuel infrastructure entirely in some regions, installing solar microgrids where grid extension would have taken decades. The milestone wasn’t solely a story of wealthy nations — it reflected decisions being made across income levels and continents.
The math of energy transition
Capacity and generation are different things. A solar panel installed counts toward capacity, but it only produces electricity when the sun shines. So while renewables led on new capacity additions, fossil fuels still generated the majority of the world’s electricity in 2016 C.E. That distinction matters when reading the milestone honestly.
Still, capacity is where the future gets built. Every megawatt of renewable capacity added displaces some future demand for fossil fuel generation. The IEA’s World Energy Outlook 2016 noted that renewable electricity was on track to become the largest source of new generation globally for years to come — a projection that has since proven accurate.
Lasting impact
The 2016 C.E. milestone set a floor that has only risen. Renewables have continued to outpace all other forms of new generation in every subsequent year. By the early 2020s C.E., solar alone was adding more capacity annually than the entire global coal fleet. The economic logic that drove the 2015 C.E. numbers has deepened: in most of the world, building new wind or solar is now cheaper than running existing coal plants.
The milestone also shifted the political and financial conversation. Once renewables demonstrably led capacity additions, the argument that the energy transition was hypothetical or distant became harder to sustain. Energy investment analysts began modeling fossil fuel infrastructure as stranded asset risk. Insurance markets, pension funds, and central banks started treating climate risk as financial risk in ways they hadn’t before.
Communities that had long borne the health costs of fossil fuel extraction and combustion — often lower-income populations and Indigenous communities located near power plants, pipelines, and refineries — stood to benefit most from a genuine transition. Whether the pace of that transition matches the urgency of those harms remains an open and contested question.
Blindspots and limits
The headline figure measured capacity added, not electricity generated — a distinction that obscures how much fossil fuel still dominated actual power production. The transition also remained deeply uneven: some nations were accelerating fast, while others, particularly those with large fossil fuel reserves and limited financing, faced structural barriers the capacity statistics didn’t capture. And the environmental footprint of renewable manufacturing — mining for lithium, cobalt, and rare earth elements — raised legitimate questions about supply chains that the good-news framing of 2016 C.E. didn’t fully reckon with.
For more on how the renewable energy story has continued to develop, see the International Renewable Energy Agency’s annual capacity reports and the Ember Global Electricity Review.
Read more
For more on this story, see: Gizmodo
For more from Good News for Humankind, see:
- Renewables now make up at least 49% of global power capacity
- Indigenous land rights win at COP30 covers 160 million hectares
- The Good News for Humankind archive on renewable energy
About this article
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