Solar PV battery options

If you don't have a smart meter, surely you will get NO FIT?

I'll believe it when I see it. I'm already producing 175MWh per year. Honest, Sir! 😁

And you get 5c for your export and pay 34c for your import or something like that? Meaning in fact you are giving away your export for free of course if you compare with more competitive tariffs.

Maybe I wasn't clear in my sarcasm :-)

I'm awaiting a contract where not only the rates are near the best in market, but where you also get paid for export (virtual or real). The cynic in me says this will not come. If you get paid for export, the utility company will probably charge you an extortionate rate for import.

I was going for the Seplos but decided against it due to the issues that some here have with the overvoltage warnings and the Solis. I asked Seplos about it and don't have too much confidence in their answers. Definitely a language barrier as well.

Trying to decide between REC and Batrium now, completely different budget range but I just want something that works. I'm not per se looking for the cheapest solution, I enjoy the DIY aspect of it. Just feels like a hobby and it's a great addition to the house. But I don't want a half baked solution that kind of works but not always. And I just like the CANBUS idea where the inverter knows what the BMS is doing. Because you can always operate a Seplos in 'dumb' mode without the CAN linked.

Currently leaning towards a Batrium WatchMonCore + Cellmate K9 + Shunt + shipping + customs charges, I think it's roughly €750. Seplos would have been around €300 or slightly less I think. Batrium seems to have a bigger community which is handy for stuff like Home Assistant and troubleshooting if necessary.

The Batrium has a feature where it emulates the LG RESU battery, which is supported by the Solis. But having said that I don't know anyone with a Solis and a Batrium, so it will still be a little bit of a gamble.

I'm open to any other suggestions as well.

That estimate is not too far off, with 7kwp but used 6 in the calculation, last year exported 1435kwh but also I had small battery, and no pv until May.

This year it will not be near that with the big battery but I'd be happy to get paid for the estimate number 😁

As long as day rate is not €1/kwh ofc

Wondered the same thing, have 8.1kWp of panels on a 6kW inverter. I've had a look at the Bord Gais website, which refers to the ESB, which refers to the CRU. Rooted through a few documents there to see if there was more info on the MEC. But all companies make the same statement, referring to the NC6 form that was used to declare your installation: "MEC is a capacity value in units of kW, representing the generation capacity of the installed generation equipment, as declared via ESBN’s NC6 (or equivalent) form".

And the NC6 form does not ask for the PV panels, it just wants to know the rating of the inverter in kVA. For my inverter, Solis 6kW, it's equal to 6kV

Long story short, IMHO it's the rating of the inverter (and I assume that's limited to 6kV for domestic use).

I bought a 6kW grid tie inverter from AliExpress for €89, it's lying on a shelf here somewhere. Does that count if I fill in a MC6 form and put that on it? 😀

Not sure how much research you have done before deciding to compress the batteries, but this here is a good explanation why it's a waste of time IMHO: Why compression will not extend battery life (something else kills them before). - YouTube

5 weeks is extremely quick. Ordered mine on 28th Feb and due to arrive this Friday 6th may. Ordered 16 cells from oye store and 16 from pwod. All arriving Friday or Monday.

Jeez that's terrible. I don't think will complain about my wait again after reading that. That's so unlucky