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is a home battery without an EV worth it?

 
Energy Storage
Last Post by AdamK 49 minutes ago
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 AdamK
(@adamk)
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Joined: 6 months ago
Posts: 93
Topic starter 30/08/2025 12:52 am  
is a PW3 at £7.5k worth it if i dont own an EV? but have 3.68kw limited 4kwp solar, a 7kw heat pump (3.5kw max electrical), induction hob etc.
 
its a bit difficult to gauge the heat pump use as havent done a winter yet, but estimate about 2500kwh per year and house less the induction hob as again only just fitted that was 2500kwh. so about 5mwh per year. if i drop Octopus and go with OVO to get 15p kwh for the heat pump its looking like a yearly bill around £900. if i do the same calcs on Octopus Cosy with a battery and the 12.29p kwh i save about £400 per year.
 
unless ive missed something having storage on rates above about 10p kwh doesnt seem to work.

   
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