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Powerwall 3 or Myenergi or something else?

 
Energy Storage
Last Post by AdamK 48 minutes ago
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 AdamK
(@adamk)
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Joined: 6 months ago
Posts: 83
Topic starter 20/08/2025 9:18 pm  

Bit of background, 4 bed house 7.35kw heat loss, gas disconnected this year, Vaillant 7kw arotherm and 250L HW tank, induction hob, 4kwp of solar feeding a 3.68kw inverter installed in 2014 on FIT. On Octopus tracker for electric with Octopus export at 15p kWh.

previous house usage per day during the worst 2 months in the winter was about 10kwh of electric per day, that was obviously before we ditched the boiler and gas hob.

so need to get some storage for the winter months to make the HP cheaper to run than the Gas boiler and maybe in the summer become 0 import. Nice to have would be power cut cover, though we only have a few per year and they don’t last very long maybe an hour at most.

had one company want to install a Sigenergy, though haven’t had price yet. The other does Tesla but seems to think I’d be better off with a Myenergi Lbbi stackable system. I’m pretty open to suggestions really. I’d like to be able to run in the winter on cheap rate juice, I like the EV tariffs but don’t have an EV so that’s not possible unless I fib. I can’t see why house storage can’t be charged this way, it’s like being discriminated for not having enough money for an EV.

 

This topic was modified 46 minutes ago by AdamK

   
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