This isn't about zero emissions BTW, it's about FOLLOW DA MONEY. Who gains? Those that get taxes from the electric power (usually higher than petro) and those who supply electric.
A single solar panel and a Renology charge controller can change 6VDC, 12VDC and 24VDC Li batteries. This way, the setup will fully pay for itself in 1-year based on the CA prices for electrical grid power. All the following years would be FREE.
The Renology is the only cost effective 30A controller with AGM, basic car battery, RV/Marine battery, Li battery charging on the market. It also comes with USB ports to run and charge those devices too.