Where Plasma meets electricity: Building application-specific side chains
One of the most ambitious cryptoeconomic projects is Eloncity. It aims to decentralize the electrical grid infrastructure and energy monopolies by replacing them with a hierarchy of blockchain-enabled microgrids. Those microgrids allow communities to store, trade, and consume locally-generated renewable energy. The system aims to achieve supply and demand balance within — and across — communities, reducing the need for very expensive peak generation power and the power transmission fees that plague the network today.
However, households need to trade frequently in order to establish an efficient energy market. As the trading volume grows geometrically with the number of households in the network, the frequency of trading, which we estimate to be millions of transactions per second in a typical country, could exceed the capacity of any blockchain.
https://medium.com/cybermiles/exploring-the-cybermiles-ecosystem-where-plasma-meets-electricity-at-eloncity-c18e85ab8a79