Has anyone implemented or have experience of installing a Multiplus ESS Setup in UK/EU on a 230V/460V split phase grid supply arrangement, 3 wire 2 phase, where phases are 180degree apart.
Is it possible to have an arrangement with single battery bank and a Multiplus II on each phase operating with ESS assistant.
Grid Parallel operation only G99 & G100 export limitation will be enabled. Backup or Island mode not essential.
Have a remote rural site with this type of grid supply and would like to install solar PV, wind and battery storage, however keen on a single system solution with single monitoring and management as opposed to implementing two typical single phase setups that would be standalone, so generation can be accessed from on either phase on demand.
I see in there is a configuration option for split phase 180Degrees in the VEConfigure, however questioning is this designed only for the US 115/230V? And wondering will it work with 230V Multiplus models?
As far as I’m aware, the UK or the EU does NOT operate a split phase 180 degree system, there are 3 phases that are 120 degrees separated. This gives phase to neutral of 235V and phase to phase of 401V. 460V is NOT used.
If you need to implement 2 inverters as a single system, then you can either parallel them, or install them as 2 legs of a 3 phase system. The 180 option is purely intended for the US market.
Its an older type system that was implemented long ago in rural parts of the UK, however still used in some places where higher power is needed where single phase is inadequate and 3-phase not available.
Getting an upgrade to 3-phase in these areas won’t happen anytime soon as the entire overhead HV transmission lines to include the 3rd wire needed for 3-phase would need placed costing £Ms, plus replacement of all the transformers etc.
Site has its own dedicated 50KVA split phase transformer off what I gather is off a 11kV HV line, with 2 live wires and shared neutral to the incomer and polyphase utility meter. 2 x 100A fuses are fitted.
Measuring across the two lives L1 and L2 with a meter typically reads about 485Vac, with each single phase to neutral being around 240V.
