I will keep you posted because for me it is a combination of loving sailing, hating the oil companies, and designing and racing EVs. For the EVs, quiet power is a rush, and a real head turner.
Your attitude to oil companies surprises me, and is somewhat alienating.
You are typiing on a plastic keyboard, looking at a plastic screen, on a varnished desk, pictured in a motor vehicle painted with oil-based paint, driving on roads finished with bitumen, owning a sailboat made from polyester resins painted with petroleum products, living in a house painted with petroleum and plastics everywhere, planning a hybrid propulsion that will not move without a petroleum-driven generator... and you hate oil companies????
Take your hatred of oil companies a step further and stop using petroleum.
Give it a go.