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Yale Environment 360

The World Adds a Third Terawatt of Solar Power

In March 2026, global solar power capacity reached three terawatts, with poorer nations increasingly driving the expansion. The growth has accelerated since 2022, as countries affected by energy crises adopt solar more rapidly, spurred by falling panel costs and rising fossil fuel prices. China remains the largest installer, but developing nations are now leading in new installations, prompting investments in energy transmission and battery storage to support the shift.

What happened

The world added its third terawatt of solar power in 2026, with poorer countries now leading the expansion.

Why it matters

This shift shows that access to clean energy is growing globally, helping reduce reliance on fossil fuels and cutting energy costs in developing regions.

Why it belongs here

It highlights a fairer, more sustainable energy future, driven by innovation and global cooperation, offering hope for equitable climate action.

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