Home Battery Savings in East Midlands

On Octopus Go in East Midlands, you pay 9.5p/kWh overnight and 34.1724p during the day. A 5 kWh battery charged at the cheap rate saves up to about £431 a year, best case.

TL;DR

Octopus Go in East Midlands charges 9.5p/kWh overnight (00:30–05:30) and 34.1724p during the day. A 5 kWh Habo Energy EcoFlow STREAM battery charges overnight and powers your home during the day, avoiding the 34.1724p daytime rate. Best case, with one full cycle a day and an assumed 90% round-trip efficiency, that is up to about £431/year. Real savings will be lower. See how we worked it out.

Octopus Go rates in East Midlands

East Midlands: 34.1724p daytime / 9.5p overnight

On the current Octopus Go 12-month fixed tariff (GO-FIX-12M-26-09-29, region B, checked 10 October 2026), households in East Midlands pay 34.1724p/kWh during the day and 9.5p/kWh overnight (00:30–05:30), with a standing charge of 50.75p/day. The off-peak rate is the same across all regions; the daytime rate varies.

This covers postcodes: DE, DN, LE, LN, NG, S (partial) – including Nottingham, Leicester, Derby, Lincoln. Your distribution network operator is National Grid Electricity Distribution.

About East Midlands

The East Midlands has a high proportion of detached and semi-detached homes, many from the post-war period, with above-average energy consumption. The region’s flat landscapes across Lincolnshire and Nottinghamshire also make it one of the stronger-performing areas for rooftop solar outside southern England.

According to MCS data, at least 5,637 certified home battery installations have been completed in the East Midlands region since September 2023 – part of a nationwide surge in domestic battery uptake.

Your savings with a 5 kWh battery

The battery charges overnight at 9.5p and powers your home during the day, avoiding the 34.1724p daytime rate. The saving is the difference between what the stored energy would have cost at the day rate and what it cost to charge overnight, allowing for charging losses.

9.5p
Octopus Go
overnight rate
34.1724p
Octopus Go
daytime rate (East Midlands)
118.08p
Best-case saving
per day
£431
Best-case annual saving
(5 kWh battery)
The calculation (Octopus Go rates for East Midlands, checked 10 October 2026)
To deliver 5 kWh at the day rate, buy 5 ÷ 0.9 = 5.5556 kWh at the night rate (assumed 90% round-trip efficiency)
5 kWh × 34.1724p − (5 ÷ 0.9) kWh × 9.5p = 170.862p − 52.7778p = 118.0842p saved per day
118.0842p × 365 days = £431.01/year, best case
Best-case payback: £2,499 ÷ £431.01 = about 5.8 years

Rates from the Octopus Energy API (product GO-FIX-12M-26-09-29, Octopus Go 12M Fixed, region B, direct debit, checked 10 October 2026). The 90% round-trip efficiency is our assumption, because EcoFlow does not publish one for the STREAM. This is a best case: one full cycle every day, with all of it used at the day rate. Real savings will be lower. Best-case payback on £2,499 fully installed is about 5.8 years. See how we worked it out.

How East 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. Figures below are best-case yearly savings for a 5 kWh battery, worked out the same way for each region (GO-FIX-12M-26-09-29, checked 10 October 2026).

RegionGo daytime rateSpreadBest-case annual saving (5 kWh)
Yorkshire33.555p24.1p£420
West Midlands33.8931p24.4p£426
East Midlands34.1724p24.7p£431
Northern England34.2164p24.7p£432
London34.481p25.0p£437
Southern Scotland34.9661p25.5p£445
Southern England35.5099p26.0p£455
North West England35.5393p26.0p£456
South Wales35.657p26.2p£458
Eastern England36.0832p26.6p£466
South West England36.1715p26.7p£467
Northern Scotland36.245p26.7p£469
South East England36.2891p26.8p£470
North Wales & Merseyside37.4209p27.9p£490

What Habo Energy offers

One 5 kWh EcoFlow STREAM all-in-one box. Inverter in the unit. Electrician-wired to your consumer unit under G98 and BS 7671. From £2,499 fully installed at 0% VAT. This is not a plug-in battery. Plugging a battery into a UK socket and feeding the house is not legal.

Ready to start saving?

Ready to start saving? Join the Habo Energy waitlist, there is nothing to pay today.

Join the waitlist