Hello everyone,
I’m in the process of upgrading my PV installation:
I’ve just ordered a new 15 kVA MultiPlus-II to supply power to my entire house.
The supply point is currently rated at 12 kVA, and the MultiPlus was sized to handle my household consumption, which can reach 10 kW simultaneously (heat pump, electric car, swimming pool, jacuzzi, air conditioning in summer, etc.).
On it, I have two EEL battery packs, each with 16 EVE MB31 cells. The panel arrays are as follows: 2 strings of 4 × 430 Wp on a SmartSolar MPPT 250/70 VE.Can, and 4 arrays of 2 × 3 × 505 Wp on SmartSolar 150/70 VE.Cans (one per array). The batteries connect to a Lynx Power In and the MPPTs to a Lynx Distributor (with an 80 A MegaFuse). Between the two Lynx units, I’ve planned a Jean Muller Keto-3-2/F switch-disconnector with two DFElectric T2 gG 400 A NH2 knife-blade HPC fuses 500 V AC / 250 V DC -
And so, going over this whole setup, I ran into a problem: I’d completely forgotten that the SmartSolars aren’t galvanically isolated, which, according to my understanding of SC-144C-5, is mandatory for strings above 120 V…
Now that everything has been ordered, I need to deal with this, and I’m a bit lost…
Could you help me?
Thanks in advance!