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Cost of adding batteries to existing PV system.
Comments
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Forensic! Thank you.
I'd assumed that the battery packs came with BMS built in, and these would need to communicate with the inverter for stuff like 'how full I am', and things like that? So, all that is actually needed between the inverter and batteries is the two hefty DC cables? Blimey :-)
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So, all that is actually needed between the inverter and batteries is the two hefty DC cables?
That's all I've got, and it works.
I'm not saying that you can't get slightly better performance (and save having to programme a dozen parameters into the inverter) with comms, but it's not essential.
N. Hampshire, he/him. Octopus Intelligent Go elec & Tracker gas / Vodafone BB / iD mobile. Kirk Hill Co-op member.Ofgem cap table, Ofgem cap explainer. Economy 7 cap explainer. Gas vs E7 vs peak elec heating costs, Best kettle!
2.72kWp PV facing SSW installed Jan 2012. 11 x 247w panels, 3.6kw inverter. 35 MWh generated, long-term average 2.6 Os.1 -
My inverter supports a range of different battery makes and models and connects to my battery via an Ethernet cable. Using comms may not be necessary, but why wouldn't you?
Reed0
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