See this visualization first on the Voronoi app.
Use This Visualization
Visualizing $1.5 Trillion in Global Power Investment
This was originally posted on our Voronoi app. Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.
Key Takeaways
- In the past decade, global electricity investment has increased by 60%.
- Solar has seen the most rapid investment growth, soaring from $142 billion in 2015 to a projected $441 billion this year.
- Similarly, wind and nuclear investment are up 69% and 64%, respectively, as capital increasingly flows to renewable power sources.
The AI boom is fueling a surge in electricity demand, as data centers consume massive amounts of power to train and run large language models.
Big Tech stand as a major driver of this investment, inking billion-dollar partnerships for greener sources like nuclear and solar. Similarly, China drove almost two-thirds of the world’s renewable capacity additions in 2024 alone.
This graphic shows global electricity investment by sector over the past decade, based on data from the IEA.
The Surge in Renewable Power Sources
Below, we show how clean power is playing a greater role in electricity generation worldwide:
| Sector | 2015 (B) | 2025E (B) | Growth |
|---|---|---|---|
| Solar | $142 | $441 | 211% |
| Grids | $331 | $413 | 25% |
| Wind | $143 | $242 | 69% |
| Coal | $91 | $82 | -10% |
| Nuclear | $45 | $74 | 64% |
| Natural gas | $70 | $70 | 0% |
| Hydro | $59 | $70 | 19% |
| Battery storage | $0 | $66 | n/a |
| Other | $55 | $36 | -35% |
| Total | $936 | $1,494 | 60% |
With investments climbing 211% between 2015 and 2025, solar power has become the world’s fastest-growing power source, projected to reach $441 billion of global investment this year.
Moreover, 75% of renewable capacity additions globally were driven by solar PV in 2024. Notably, solar PV additions jumped by 55% annually in America, 30% in China, and 153% in India.
As we can see, investment in grids is projected to reach $413 billion, up 25% since 2015. Yet, the sector faces numerous bottlenecks including permitting delays and rising equipment costs given high generation demand.
Meanwhile, wind power investment is anticipated to reach $242 billion this year—a 69% increase since 2015. While growth wind power additions weakened in 2024 across key markets like Brazil, Europe, and Brazil, both India and China saw moderate increases over the year.
Learn More on the Voronoi App
To learn more about this topic, check out this graphic on electricity use per capita in across major economies.