u/Beautiful-Noise-2847

What to do with my battery in summer?

Got my solar and battery installed today. 3Kwh solar, 20Kw battery. House is all electric with storage heaters. The payback really mostly comes from using the battery to charge from the grid during off peak hours in winter to eliminate most peak usage - I am on snug Octopus so get 6hrs overnight plus 1 hour late afternoon 3-4pm at 9p. I need to stay on that for incoming as I need the tariff to make the storage heaters viable, and that is saving us 30% already in winter vs the standard economy 7 rate I was on previously.

Having looked at my first afternoon, I managed to generate 10Kw, so thinking the solar is going to cover all or most of my daily usage in summer, so now I have a fairly large battery that is only being 40% used in summer.

Octopus offer prime outgoing (16p between 4-7pm), agile outgoing (seems to peak at 20p+ during early evening most days in summer) or just outgoing (12p). I've also seen people mention Axle, but not sure if that can be paired with any of the above. Octopus also explicitly say that you don't need solar and they welcome battery only customers on these outgoing tariffs, as I seen some people mention brown energy and that not being allowed. They also say you can pair snug with any of these outgoing tariffs.

I'm thinking of starting with the agile outgoing for now - charge up battery to max from grid during cheap windows as my solar is too small to do it alone, then export most of the battery during the early evening if the agile rate is over 20p.

I will only really ever have outgoing in summer as I will self consume everything in winter. Is that my best option or am I missing something better in terms of supplier or strategy.

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u/Beautiful-Noise-2847 — 1 month ago