Powerledger is super interesting.
If you think of energy prices, a lot of energy commodities are nominated in USD. Even for asian and european countries, the price of oil is nominated in Dollars, so if there are future alternatives to that nominates Kilowatthours, oil or other energy commodities to crypto, there is so much potential. they may be volatile, but as an alternative thats uncorrelated to USD, im sure there could be some allocation to new energy-cryptos.
I will write more about this soon.