
In 2026, clean energy ETFs like Invesco Solar (TAN), WilderHill Clean Energy (PBW), and iShares Global Clean Energy (ICLN) have surged, reversing years of decline. This rally is driven by rising power demand, especially from AI data centers, cost-effective solar power, and a strong US domestic manufacturing base. Unlike past rebounds fueled by subsidies, this growth is structural, supported by stable interest rates and tariff protections. Investors can choose ETFs based on risk tolerance: ICLN for broad, stable exposure; TAN for concentrated solar plays; and PBW for high-volatility small-cap clean tech.