I agree. We also built and lived on a sea going boat. You learn a lot about infrastructure to make yourselves independent. As early as the late 70's, we had sol

I agree. We also built and lived on a sea going boat. You learn a lot about infrastructure to make yourselves independent. As early as the late 70's, we had solar connected to a 12v DC system. That allowed us to run lights, radios, navigation equipment, refrigeration or heating, for as long as we were at sea. Sustainable for over 2 -3 years - Battery life was the limit. {Well, obviously food and water at sea were also a limit.) 2021. That system is still running! everything you need is in there.