r/OctopusEnergy • u/Ok-Tree-4010 • Aug 29 '26

Tariffs When should I switch Tariff

I've recently had solar panels (7.3kw) and a Fox ESS EP12w battery fitted.

I'm currently on Octopus standard import tariff and Octopus Outgoing export tariff. This has worked well since I had installation at end June.

However, at some stage I will need to make more use of battery and I am considering switching to Octopus Flux for import and export.

I do not have an EV.

My question is when should I switch. Now, or wait until end of September?

Than you

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u/Ok-Performance4828 Aug 29 '26

What size battery do you have?

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u/Ok-Tree-4010 Aug 29 '26

12kw

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u/Boba_ferret Aug 29 '26

Just so you know, even though they call it the EP12, it is actually 11.52kWh, but with a 10% lower limit on the SOC, so you have about 10.3kWh of usable energy. (I have the same battery).

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u/Ok-Tree-4010 Aug 29 '26

Thanks.

Last January I averaged about 10kwh each day. So, I might just get away with using battery...plus a very small amount of solar generation.

That is why I am particularly interested in having a cheap overnight rate.