Home Battery Savings in Your Area

Electricity rates vary across the UK’s 14 distribution regions. Enter your postcode to see what an 11.5kWh battery could save you.

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7p
Octopus Go
overnight rate
29p
Octopus Go
daytime rate
22p
Saved per kWh
on stored energy
£831
Estimated annual saving
(11.5kWh battery)
The calculation (based on Octopus Go rates)
11.5kWh × 90% efficiency = 10.35kWh usable per cycle
(29p daytime − 7p overnight) × 10.35kWh = 228p saved per day
228p × 365 days = £831/year

See full breakdown for

All UK regions

Standard variable tariff rates by region (Ofgem price cap, Q2 2026). The battery saving on Octopus Go is the same everywhere (£831/year) – but the rate you’re switching from varies.

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