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Global Solar Growth Set to Slow for the First Time in Two Decades
Global Solar Growth Set to Slow for the First Time in Two Decades
By Dr. Waseem Hoenini
Jan 22, 2026
Jan 22, 2026
ESG & SUSTAINABILITY
For the first time since solar energy emerged as a dominant global force, growth in new installations is expected to slow. After nearly two decades of rapid expansion, the industry is entering a transitional phase shaped by policy shifts, market saturation, and evolving supply-demand dynamics.
According to insights highlighted by BloombergNEF, the world is projected to add 649 gigawatts (GW) of solar capacity in 2026 — slightly lower than 2025 levels. While this decline is modest, it marks a significant milestone for a sector that has consistently delivered exponential growth.
Why Is Solar Growth Slowing?
The slowdown is largely driven by:
- Policy adjustments in China and the United States
- Cooling demand growth in major mature markets
- Supply-demand recalibration after years of aggressive expansion
China and the U.S., two of the largest solar markets globally, are adjusting to new regulatory frameworks and economic conditions. As these markets stabilize, global installation growth is expected to temporarily moderate.
However, this is not a structural decline — it is a strategic pause.
Investment Trends: Strong Growth, But at a Measured Pace
Global solar investment reached $650 billion by 2025, reflecting a remarkable 20% CAGR between 2020 and 2025. During the same period, new solar capacity expanded at an impressive 38% CAGR.
Looking ahead to 2026–2030:
- Investment growth is projected at a more moderate 9% CAGR
- New capacity additions are expected to grow at a similar rate
- Installations are forecasted to resume modest growth by 2027
The industry is clearly transitioning from hyper-growth to sustainable, optimized expansion.
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