I am interested in a similar project. In the rental generator market, we need flexible battery packs that can be delivered based on the need of the site. One client may want 50kW x 150kWh and another client may need the same three packs arranges in a 150kW x 150kWh. A modular system of building blocks is desirable. Think of it as the Spark charge Roadie scaled up 10 times the size of each Roadie module.