Check this out: EV battery developer QuantumScape begins trading on NYSE

https://finance.yahoo.com/news/ev-battery-developer-quantum-scape-begins-trading-on-nyse-153744553.html

This Quantum Scape is a challenger to Tesla in that their EV batteries are first to market to use solid state Lithium technology. QS is also backed by Bill Gates to help solve the issue Of Cost for EV battties which have a limited range, which will in turn increase the chance of adoption quicker across the Developing world.

These factors are reason I see this as one of the best clean tech investments yo I can make and profit with the new energy economy going forward and I can see this tech being deployed to developing nations with growing population going forward to help handle increases in Electricity use in an on demand network.