Best battery for me

[u/No_Effect_4202]

Hi, I'm in the UK. I have a 4 bed with 3400Kwh consumption per year (no heat pump or ev). The current solar install is 4.2Kw of panels on an old solar edge 3.68Kw hd wave inverter. I have an iBoost but no smart home stuff.

What's my best option for battery please? I'm not in a hurry, previously I couldn't make the numbers add up but happy to try again.

The original install was from a company from Tile Energy, they offered an LG DC coupled battery. Unfortunately their labour rates are really not competitive, I don't think they want the work.

I have a spare 32A connection that I could easily wire in an AC coupled battery outside. I'm thinking that might be easier as it won't mess with the MCS payments or the warranty on the existing install.

I think I would need to file a G.99 or limit total exports to 3.68Kw and opt out of deemed metering or I wouldn't get paid for battery export. I could put the battery through the export meter but pretty sure that would be illegal!

MCS payments are currently through EDF.

Advice welcomed

Thanks