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Home Battery Savings in West Midlands

On Octopus Go in West Midlands, you pay 9.5p/kWh overnight and 32.02p during the day. An 11.5kWh battery charges at the cheap rate and saves you £851/year.

TL;DR

Octopus Go in West Midlands charges 9.5p/kWh overnight (00:30–05:30) and 32.02p during the day. An 11.5kWh Habo Energy battery charges overnight and powers your home during the day, avoiding the 32.02p daytime rate. That’s a saving of 22.5p on every stored kWh, or approximately £851/year.

Octopus Go rates in West Midlands

West Midlands: 32.02p daytime / 9.5p overnight

On the current Octopus Go 12-month fixed tariff (GO-FIX-12M-26-03-23), households in West Midlands pay 32.02p/kWh during the day and 9.5p/kWh overnight (00:30–05:30), with a standing charge of 57.35p/day. The off-peak rate is the same across all regions; the daytime rate varies.

For comparison, the standard variable tariff in West Midlands is 23.89p/kWh (Ofgem cap, Q2 2026) – a flat rate with no cheap overnight window.

This covers postcodes: B, CV, DY, HR, ST, TF, WR, WS, WV – including Birmingham, Coventry, Wolverhampton, Stoke-on-Trent. Your distribution network operator is National Grid Electricity Distribution.

About West Midlands

The West Midlands is one of the most densely populated regions outside London, with a high proportion of 1950s–1970s semi-detached homes and pronounced evening peak electricity demand. Solar PV installation rates have been rising sharply since 2022 as electricity prices increased.

According to MCS data, at least 6,056 certified home battery installations have been completed in the West Midlands region since September 2023 – part of a nationwide surge in domestic battery uptake.

Your savings with an 11.5kWh battery

The battery charges overnight at 9.5p and powers your home during the day, avoiding the 32.02p daytime rate. The saving is the difference between those rates, multiplied by how much energy the battery delivers each cycle.

9.5p
Octopus Go
overnight rate
32.02p
Octopus Go
daytime rate (West Midlands)
22.5p
Saved per kWh
on stored energy
£851
Estimated annual saving
(11.5kWh battery)
The calculation (Octopus Go rates for West Midlands, April 2026)
11.5kWh × 90% round-trip efficiency = 10.35kWh usable per cycle
(32.02p daytime − 9.5p overnight) × 10.35kWh = 233p saved per day
233p × 365 days = £851/year

Rates from the Octopus Energy API (product GO-FIX-12M-26-03-23, April 2026). Assumes one full battery cycle per day. Actual savings depend on your usage patterns.

How West Midlands compares

The Octopus Go off-peak rate (9.5p) is the same everywhere, but the daytime rate varies by region – so regions with higher daytime rates see bigger savings.

RegionGo daytime rateSpreadAnnual saving
South Wales31.67p22.2p£838
West Midlands32.02p22.5p£851
East Midlands32.32p22.8p£862
Northern England32.36p22.9p£864
London32.64p23.1p£874
South West England33.15p23.6p£893
Northern Scotland33.72p24.2p£915
North West England33.75p24.2p£916
South East England33.87p24.4p£921
Eastern England34.32p24.8p£938
Southern England34.42p24.9p£941
Yorkshire34.49p25.0p£944
Southern Scotland34.54p25.0p£946
North Wales & Merseyside35.73p26.2p£991

What Habo Energy offers

One 11.5kWh battery. Everything included – inverter, cables, mounting kit, and MCS certified installation. Pre-configured for UK time-of-use tariffs. If you’d prefer to use your own electrician, that’s fine too.

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