Home Battery Savings in North Wales & Merseyside

Octopus Go rates in North Wales & Merseyside

On the current Octopus Go 12-month fixed tariff (GO-FIX-12M-26-09-29, region D, checked 10 October 2026), households in North Wales & Merseyside pay 37.4209p/kWh during the day and 9.5p/kWh overnight (00:30–05:30), with a standing charge of 66.74p/day. The off-peak rate is the same across all regions; the daytime rate varies.

This covers postcodes: CH, CW, L, LL, WA – including Liverpool, Chester, Wrexham, Bangor, Llandudno. Your distribution network operator is SP Energy Networks.

About North Wales & Merseyside

This region spans dense urban Merseyside to rural and coastal North Wales, with many off-gas-grid properties in rural areas having higher electricity dependence. North Wales has substantial onshore wind generation, while Merseyside’s urban homes benefit from tariff arbitrage on time-of-use pricing.

According to MCS data, at least 3,742 certified home battery installations have been completed in the North Wales & Merseyside 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 37.4209p 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.

Rates from the Octopus Energy API (product GO-FIX-12M-26-09-29, Octopus Go 12M Fixed, region D, 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 5.1 years. See how we worked it out.

How North Wales & Merseyside 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).

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.