My home installation

Show us your system
1

Hi all,

Here is my home installation excisting of:
3x MultiPlus-II 48/5000/70-48 (one per phase)
MPPT RS 450/100
MPPT 25/60
DC system (measured with smart shunt)
8 micro-inverters (enphase) connected to AC1 out

The complete house is connected to AC1 out

The battery banks are home made with EVE 304Ah cells, Gobelpower BMS and Heltec active ballancer. 2 out of 3 banks are already installed. The 3rd one is comming soon.

IMG_3743 groot
IMG_3743 groot960Ă—1280 194 KB

IMG_3742 groot
IMG_3742 groot960Ă—1280 254 KB

IMG_3741 groot
IMG_3741 groot1280Ă—960 357 KB

IMG_3740 groot
IMG_3740 groot689Ă—1280 92.1 KB

Kind regards,

David

7 Likes
2

Nicely done … :+1:
But I didn’t realise that Victron also has 3-stage filters and pressure tanks :wink:

1 Like
3

Not yet :blush:

I’m not good in fotoshop :crazy_face:

4

Welcome in the forums! Niiice first post!!!

Awesomely clean and tidy nice! Nice and Impressive batteries gear for home-made devices!

Couple of suggestions:

  • Make sure to have high cutting current fuses for your batteries corresponding to the indications of the battery manufacturer, the maxifuses in the Victron busbar are insuffisant with only 1 kA cutting power, which btw doesn’t make sense for a 1 kA rated busbar (i reported this security issue at least 3 times to Victron, unfortunately without reply yet).
  • Make sure the plywood fire-resistance corresponds to your local electrical and fire regulations.
  • Maybe check that your regulations allow to mix battery DC, solar DC and AC cables in the same channels before going through electrical inspection.
5

Hi David,

since you have relatively few micro inverters, what other enphase infrastructure did you / did you have to install?

  • Enphase Gateway? If not, how do you know whether all of the micro inverters are actually working?
  • If yes? Is the gateway working without production/consumption current transformers?

Best Regards
Paul

6

Hi Paul,

The gateway is in theory not necessary. But it helps you indeed to monitor the different micro-inverters.

Yes the gateway works perfectly fine without the transformers. There is the “standard” gateway without the measurement option ( a little less expensive). The one with measurement is called “metered”

Kind regards,

David

1 Like
7

Thanks David,
that helps a lot. I really Like the 3-phase installation cable from enphase. I am constantly switching in mind between enphase and Hoymiles.

8

You’re welcome. Beside of Victron I do also Enphase installations and the combination of both. Never had big issues with both of them… I have no experience with hoymiles.