17 Best Sustainable Investment Funds Worth Looking at in 2026

3. Invesco Solar ETF - Harnessing the Power of Renewable Energy

The Invesco Solar ETF has emerged as a premier investment vehicle for capitalizing on the global solar energy revolution, providing targeted exposure to companies across the entire solar value chain from manufacturing to installation and energy storage. This specialized fund focuses on pure-play solar companies that are driving the dramatic cost reductions and efficiency improvements that have made solar power the cheapest form of electricity generation in many parts of the world. The fund's portfolio includes leading solar panel manufacturers, inverter companies, installation specialists, and emerging technologies like perovskite cells and floating solar systems that promise to further expand solar energy's potential. In 2026, the fund has benefited tremendously from accelerating global solar adoption, driven by government incentives, corporate sustainability commitments, and the economic advantages of renewable energy over fossil fuels. The fund's geographic diversification across the United States, China, Europe, and emerging markets provides exposure to different regulatory environments and growth stages of solar market development. With the International Energy Agency projecting solar to become the largest source of electricity generation by 2030, this fund positions investors at the forefront of one of the most significant energy transitions in human history.