Battery upgrade suggestions and advice please.
Hello gang.
I currently have a 16 kWh battery, 2 x 8 kWh, and am looking at upgrading it once my new garage shed is built. I am also looking at a new job a couple cities over on a 24 hour roster, and will need to be able to charge about 35 kWh into my car between shifts. Ideally I want to charge it using just solar and the four-hour free electricity tariff I get. Easy if I am working overnight, but slightly tricky other times of the day.
Thinking I want an EVDC module so when the free tariff starts I can just chug power from the grid, especially if I may not be home for the full four hours. To that end I am thinking about getting some more battery modules added to the system as well that can store enough power during the day, and regurgitate it into the car, like a proud parent penguin with its chick. I’m led to understand the current battery modules are 10 kWh, so if the budget goes far enough I possibly want to try and get three added. Believe the limit for modules in a stack is eight, so six modules should be fine as I don’t have the space for more stacks.
Currently my battery system charges and discharges at a max rate of 5 kW. Will adding more battery modules alone enable it to charge and discharge faster? Even on a sunny day, my solar can’t generate enough power in a day to charge a battery that big, so I would want it to be able to charge itself completely using the free electricity tariff like my current system is able to.
Finally, can someone give me an idea how much the EVDC and battery modules are going for today? Would also be handy if anyone knows if battery rebates apply to expanding existing systems or new systems only.
Thanks team.