The ISHRS GLOBAL CLEAN ENERGY ETF is a Exchange Traded Fund that invests in Clean Energy Technology.
https://www.londonstockexchange.com/stock/INRG/ishares/company-page
It’s objective is to track the investment results of an index composed of global equities in the clean energy sector
https://www.ishares.com/us/products/239738/ishares-global-clean-energy-etf