BMS for EV Battery For Solar Installation
Posted: Tue Jul 19, 2022 1:27 pm
Hello forum and my first post so please forgive any obvious errors.
I have recently (yesterday!) taken delivery of a set of high power solar panels and an inverter. I am told the inverter has a built in BMS and simply needs a +- input, but I suspect it's more complex than that.
It is hard to ignore the value margin in a second hand vehicle EV battery and the price currently in the marketplace for purpose built solar battery stacks. It's actual orders of magnitude more expensive.
As such, I anticipate my solar panels will be generating power well in excess of my actual needs and an ability to store even some of it makes sense. That, and I am a bit of a curious sort and the idea of constructing a battery bank is very exciting.
After that lengthy intro my questions:
I am in Devon in the Southwest of the UK. Who or where can I speak to an actual human who has at least some experience when it comes to using a 2nd hand EV battery for solar storage?
Next, my basic grasp of the DC power circuit is I shall have an excess of the right sort of power, how do I tell my inverter there is a battery on the system and more importantly how do I get the energy safely into the EV battery? I must assume that the BMS on a VW battery is not the same as a Tesla! How do I get them all to talk to each other while ensuring the charge is efficient and individual cells are being balanced etc?
My energy demands are low. I would probably be perfectly happy with something as small as a 5kw battery set. Anything more than about 10 is unlikely to fully charge in a cycle anyway, though I have the option of adding more panels at a later date if necessary, though this would mean added costs as I would need to replace the inverter.
I hope my questions make sense and I am permitted to ask. In advance I thank you for reading this far and am excited about learning what I can. HP.
I have recently (yesterday!) taken delivery of a set of high power solar panels and an inverter. I am told the inverter has a built in BMS and simply needs a +- input, but I suspect it's more complex than that.
It is hard to ignore the value margin in a second hand vehicle EV battery and the price currently in the marketplace for purpose built solar battery stacks. It's actual orders of magnitude more expensive.
As such, I anticipate my solar panels will be generating power well in excess of my actual needs and an ability to store even some of it makes sense. That, and I am a bit of a curious sort and the idea of constructing a battery bank is very exciting.
After that lengthy intro my questions:
I am in Devon in the Southwest of the UK. Who or where can I speak to an actual human who has at least some experience when it comes to using a 2nd hand EV battery for solar storage?
Next, my basic grasp of the DC power circuit is I shall have an excess of the right sort of power, how do I tell my inverter there is a battery on the system and more importantly how do I get the energy safely into the EV battery? I must assume that the BMS on a VW battery is not the same as a Tesla! How do I get them all to talk to each other while ensuring the charge is efficient and individual cells are being balanced etc?
My energy demands are low. I would probably be perfectly happy with something as small as a 5kw battery set. Anything more than about 10 is unlikely to fully charge in a cycle anyway, though I have the option of adding more panels at a later date if necessary, though this would mean added costs as I would need to replace the inverter.
I hope my questions make sense and I am permitted to ask. In advance I thank you for reading this far and am excited about learning what I can. HP.
