Clean energy investment funds have become increasingly popular as global investors look to capitalize on the transition to renewable power. With governments and corporations committing to net-zero goals, sectors like solar, wind, battery storage, hydrogen, and electric vehicles are seeing strong long-term growth potential. If you’re searching for the best clean energy ETFs and mutual funds to diversify your portfolio, this guide breaks down ten of the most recognized options. Each fund offers exposure to different segments of the renewable energy ecosystem, helping investors participate in the global shift toward sustainable energy solutions.
1. iShares Global Clean Energy ETF (ICLN)
The iShares Global Clean Energy ETF (ICLN) is one of the most widely known renewable energy ETFs. It provides exposure to global companies involved in solar, wind, and other clean technologies. With holdings spanning North America, Europe, and Asia, ICLN offers geographic diversification along with sector breadth. Investors often choose this fund for its strong liquidity and brand recognition. While performance can be volatile due to policy shifts and energy pricing trends, ICLN remains a core holding for those seeking long-term exposure to the global clean energy transition.
2. Invesco Solar ETF (TAN)
The Invesco Solar ETF (TAN) focuses specifically on solar energy companies, including panel manufacturers, installers, and component suppliers. This concentrated exposure makes TAN more volatile but also potentially more rewarding during solar industry booms. As solar adoption accelerates globally due to falling costs and supportive government incentives, TAN offers a targeted way to invest in this high-growth niche. Investors who believe solar power will dominate the renewable mix often consider TAN a strong satellite position within a diversified clean energy portfolio.
3. First Trust NASDAQ Clean Edge Green Energy Index Fund (QCLN)
QCLN tracks companies engaged in clean energy production and technology, including electric vehicles and advanced batteries. This broader mandate allows it to capture growth in EV leaders and energy storage innovators alongside renewable power producers. Many investors appreciate QCLN’s balanced exposure between traditional renewables and next-generation technologies. While sector concentration can lead to price swings, the long-term growth narrative remains compelling as electrification expands worldwide. QCLN suits investors looking for innovation-driven clean energy exposure.
4. SPDR S&P Kensho Clean Power ETF (CNRG)
The SPDR S&P Kensho Clean Power ETF (CNRG) focuses on companies driving clean power innovation, including hydrogen, fuel cells, and smart grid technologies. It tends to allocate more heavily toward small- and mid-cap growth stocks, offering higher upside potential but increased volatility. CNRG appeals to investors who want exposure beyond established renewable giants and into emerging disruptors. As clean infrastructure investments rise globally, funds like CNRG may benefit from technological breakthroughs and expanding adoption across industries.
5. iShares Global Energy ETF (IXC) with Renewable Tilt
While IXC traditionally tracks major global energy producers, its portfolio increasingly includes renewable-focused energy companies transitioning away from fossil fuels. This hybrid exposure provides a more balanced risk profile compared to pure-play clean energy funds. Investors seeking stability from established energy majors, while still participating in renewable growth strategies, may find IXC attractive. It offers dividend income potential alongside long-term transition upside, making it suitable for income-oriented investors who want measured exposure to clean energy trends.
6. ALPS Clean Energy ETF (ACES)
ACES invests in U.S. and Canadian clean energy companies involved in solar, wind, hydropower, and electric vehicles. The fund emphasizes North American firms benefiting from regional climate legislation and infrastructure spending. Its focused geographic exposure may appeal to investors bullish on U.S. renewable policy initiatives. ACES typically holds a diversified mix of utilities, technology firms, and equipment manufacturers. As government incentives accelerate domestic renewable production, ACES offers a targeted yet diversified clean energy investment approach.
7. VanEck Low Carbon Energy ETF (SMOG)
The VanEck Low Carbon Energy ETF (SMOG) tracks companies generating revenue from alternative energy and low-carbon technologies. Its portfolio spans electric vehicles, battery producers, solar manufacturers, and green utilities worldwide. SMOG’s diversified holdings provide balanced exposure across the clean energy value chain. Investors often use it to gain broad international coverage while avoiding overconcentration in any single renewable segment. As decarbonization becomes a global priority, SMOG positions investors to benefit from multiple growth drivers simultaneously.
8. Global X Hydrogen ETF (HYDR)
HYDR targets companies involved in hydrogen production, fuel cells, and related infrastructure. Hydrogen is widely considered a potential game changer for heavy industry and transportation decarbonization. Because the industry is still emerging, HYDR carries higher risk and volatility. However, for investors who believe hydrogen will play a central role in the future energy mix, this ETF provides direct exposure. It works best as a smaller allocation within a broader clean energy portfolio focused on long-term thematic growth.
9. Fidelity Environment and Alternative Energy Fund (FSLEX)
FSLEX is an actively managed mutual fund that invests in companies supporting environmental sustainability and alternative energy production. Unlike passive ETFs, the active management strategy allows portfolio adjustments based on market conditions and sector outlooks. The fund includes renewable utilities, technology innovators, and industrial firms improving energy efficiency. Investors who prefer professional oversight and strategic allocation decisions may favor FSLEX. It offers a more flexible approach to clean energy investing compared to purely index-based funds.
10. Parnassus Mid Cap Growth Fund (Clean Energy Exposure)
While not exclusively a renewable energy fund, Parnassus Mid Cap Growth Fund incorporates ESG principles and includes exposure to clean energy innovators within its broader portfolio. Its mid-cap focus provides access to growing companies positioned between startups and mega-cap giants. This blended approach offers diversification beyond pure renewable plays while still aligning with sustainability goals. Investors seeking cleaner portfolios without full sector concentration may consider funds like this to balance growth potential and responsible investing principles.
Conclusion
The best clean energy investment funds offer diverse ways to participate in the global renewable transition. From solar-focused ETFs and hydrogen innovators to diversified ESG mutual funds, each option carries unique risk and return characteristics. As climate policy, technological breakthroughs, and consumer demand continue to reshape the energy landscape, long-term opportunities remain compelling. However, volatility is common in thematic sectors, so diversification and risk management are essential. By carefully selecting funds aligned with your goals and risk tolerance, you can position your portfolio to benefit from the accelerating clean energy revolution.