Buyer's Advice & Tools

Buying Guides

Everything you need to know before you buy a home battery: how to choose one, what size you need, what it really costs and which installer to trust. Independent, with honest payback numbers.

Independent & unbiased
Real UK numbers
No sales pitch

Hand pressing a calculator beside printed paperwork, with a person holding a document and a laptop in the background

Electrician in a hard hat and safety glasses working on a consumer unit with a screwdriver

How to Choose a Battery Storage Installer in the UK: The Checks That Protect Your Payback

MCS certification is per technology, so check your battery storage installer holds battery scope before you sign anything.

28/10/2026

Read before buying energy storage system

A complete, honest guide to what a home battery is, how it works, and whether it’s worth buying.

22/10/2026

Portable Power Station vs Plug-In Battery

Portable power stations vs plug-in home batteries: portability, backup power, solar charging and smart-meter control compared.

14/10/2026

Two stripped mains cables with an electric arc glowing between the exposed copper wires against a dark background

AC or DC-coupled plug-in home battery: Which setup suits your home?

Explains the difference between AC- and DC-coupled home batteries, how electricity flows through each, and which suits your setup.

05/10/2026

Hand pushing a white plug into a white UK three-pin wall socket

Plug-in battery vs installed home battery: which makes more sense?

Plug-in batteries are cheaper, faster and portable; installed systems cost more but offer higher capacity and backup.

05/10/2026

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How to choose a home battery: a step-by-step guide

Choosing a home battery means weighing capacity, installation type, technology, safety, warranty and lifespan, not price.

05/10/2026

Three model houses in a row, small teal, medium white and large brown, on a pale yellow background

What size home battery do I need? (kWh explained)

Choosing the right home battery size depends on daily energy use, solar production, and household power goals.

17/08/2026

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How much does a home battery cost in the UK?

Home battery costs vary based on capacity, brand, and installation type, ranging from plug-in to fixed systems.

13/08/2026

Hand plugging a black cable into a wall socket, connected to a large portable battery unit standing on a wooden floor

Is a (plug in) Home Battery Worth It in 2026? Real Payback Numbers Explained

Home battery payback periods depend on dynamic energy price spreads, solar self-consumption, and overall installation costs.

08/07/2026

Three solar panels mounted along the railing of an apartment balcony with green plants growing behind them

Balcony Power Plant With Storage: The Complete 2026 Buyer’s Guide

Balcony power plants with storage capture daytime solar surplus, reducing grid dependence during peak evening hours.

06/07/2026