I recently purchased a Gobel battery. I saw a video from the ‘Off Grid garage’ on YT which rated it very highly, so went ahead and purchased it.
I did not realise at the time that it was a low voltage battery, approx 50VDC.
Is this battery any use if I plan on installing a grid tie system here in QLD Australia?
The solar contractor said its going to be very expensive, as there aren’t many hybrid inverters that can accept low voltage batteries and export excess power back to the grid.
Selectronic HI is approx 6.5K AUD.
Any suggestions welcome.
Edit: I am interested to know if a cost effective solution, using Victron gear is possible, with export functionality enabled.
Would suggest reading up on the subject.
You’ve purchased a battery without knowing what voltage it was, what was the plan with an unknown voltage battery?.
Most Victron inverters are nom 12 / 24 /36 or 48V variants, so you may need to find another solar contractor for victron equipment if they feel 50vdc battery is low.
Research battery and more than likely someone has it working with victron gear or you can always change the battery BMS to something that works, but most solar contractors will only work / install what they know and equipment that simply plugs & plays.
You should read all the documents and data on the site you linked, there are a lot of examples with these batteries and victron equipment on there, so maybe contact your supplier or the battery manufacturer for more info
51.2v battery voltage is what i could find quickly so should be able to work on 48v victron equipment
If the Gobel battery leads you to the Victron ecosystem, at the end you will be the lucky one. But you will need a contractor who is willing to work with Victron equipment. In my case, I had to persuade the contractor to do so. It has been easier than I feared, because he knew of Victron equipment in motorhomes. He simply hadn‘t realized yet, that Victron is a serious option for immobile homes too.
With the help of Claude.ai I have found what sounds like quite an easy solution. The only downfall is no export ability, which isn’t the end of the world.
Use a Fronius Gen24 hybrid inverter with the Multiplus 2.
I’m thinking a hybrid AC/DC coupled so I can get the best of both worlds efficiency wise.
Now I just have to call the contractor and ask if he will do it.