Solar PV battery options

It's a 3 core AC cable to a breaker in your Fuseboard.

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Hello, long time stalker of this forum.

Getting a 4.5kw array installed on a south facing roof in 2 weeks and the system will be battery ready.

Anyone seen the newer company called GoKWH based out of China? They can deliver a 15KW battery and BMS in a full housing for about 2k euro. No taxes on top.

They have an Aliexpress presence and they also are available via the two well known sites people buy from on here.

I've spoken to a representative of the company and your can by the battery with Paypal for buyer protection also.

I'd just like someone's experience to confirm I'm not overlooking anything with this Unit with regard for adding to a 5KW Solis Hybrid invertor.

I'd post a link but the forum will not let me. :/

Decent price alright and similar to nkon albeit these come with the extra epoxy sheets.

Price with 50 day delivery

Price with 5 day delivery 🙈

Exact same on gobel prebuilt battery that a family member purchased from them earlier this year. Took 94 days although in saying I have nothing bad to say about the battery itself as above advertised capacity and well built

Just a quick question here and I'm sure it's been covered numerous times in all these PV discussions

Say for example I get PV installed plus inverter etc and it's all done by company along with RECI cert etc

If I want to add a DIY battery at a later stage, whether I make it myself or buy a ready made DIY option, do I need an electrician to install it and certify it, or does it affect the original certification of the job?

Why would that be? Seems to me that replacing a string inverter with a hybrid is basically plug and play with all the crimping and cable runs already going to the old string inverter, unplug pv1 and 2, ac cable, ground and maybe cat5 and away you go. Unless a new nc6 needs to be submitted, but I've never found an answer to that yet if still under the 25amp limit with new inverter.

The main thing about the NC6 is that it advised ESBN that you are potentially exporting into their grid.

It became an additional function of facilitating the utility companies to pay you for power exported.

Size mattered for when deemed export payments were made, but I don't think the specifics are as important as they once were

Thats good to know, thanks for the post,,😎

Good suggestion, but just to clarify the finer points here: the problem is not that they only take high voltage batteries. I would be very happy to build a DIY high voltage battery. It is a superior solution as you would have far less losses converting from high voltage DC PV strings to high voltage DC battery.

Their problem is that they only take proprietary batteries, so you are stuck with a very limited range of off the shelf batteries, which limits your options and will not give you good value for money

I can confirm the Solax LFP Triple Power batteries are proper high voltage batteries with a 36 cell arangement. I have 3 of them still running here since May 2020.

Not sure if the efficiency of the HV batteries is worth it over home build 48v batteries given how cheap it is to build 48v batteries.

Getting solar in two weeks (14 panels E/W orientations, solis inverter and dyness 5k battery) - can't wait! Installer is planning to put everything in the attic at the moment, which is okay..ish but what if I want to add another 10kWh-15kWh battery in future, the joists / truss roof… can it handle the weight?

Just wondering… if I were to ask them to install the inverter and battery on the outside wall to the side of the house (there's plenty of room)… is a garden tool shed (like Keter etc) is that's needed to keep everything dry and warm? Or is there a more permanent, metal enclosure type thing that will take all these components (and allow for DIY batteries in future)?

The problem you have there is theft if the access is easy. Will it be visible from the road. Thieves know now what battery's are worth.