About this guide
An independent guide to how home batteries work and fit, written in energy rather than money, by a publisher that sells no batteries.
Who we are
Published by SEO-DONS LTD (company no. 16766013), 71-75 Shelton Street, Covent Garden, London WC2H 9JQ. We don't sell, fit, survey or finance batteries, we hold no trade accreditation, and this is not a government website.
The publisher
Solar Power Battery Storage is published by SEO-DONS LTD, company number 16766013, registered office 71-75 Shelton Street, Covent Garden, London WC2H 9JQ. The Companies House record is public. SEO-DONS LTD runs a number of information websites about home energy.
We are not an installer, manufacturer, retailer, lender or broker, and we show no badges, ratings or reviews of our own. Where a page mentions MCS, TrustMark, PAS 63100 or a consumer code such as RECC or HIES, it is pointing you to something to check on an installer, not claiming it for us. The same goes for warranty advice: we explain what to look for in a manufacturer's or installer's warranty; we offer none ourselves.
Asking us a question carries no obligation of any kind. This page was last checked on 3 November 2026.
Who runs the guide
SEO-DONS LTD runs the guide. Messages sent through the form come to the company and are answered by email. As at 3 November 2026, no manufacturer, installer, retailer or lender had seen any of the content before it was published.
Why it works in kWh, not pounds
Most of what decides whether storage suits a home is energy: how much you use after dark, how much spare solar there is in each season, how much power the house asks for at once, and where a battery can safely go. Those questions have answers that don't change with tariffs or offers. Prices do, so this guide leaves them to price guides and keeps to what a battery physically does.
How facts are checked
- Every rule comes from the body that sets it: BSI for PAS 63100, legislation.gov.uk for the safety regulations, MCS for network notification and certification.
- Every energy figure comes from Ofgem, PVGIS or DESNZ, with the date we read it; derived figures say "our arithmetic".
- Secondary sources, such as Which?, are marked as secondary.
- No tool shows a default that isn't sourced, and the self-use explorer caps any share at 75% without a battery and 90% with one.
- When a source changes, we update every page that relies on it. Corrections are welcome through the contact page.
The full list is on references. If you are new to storage, how a solar battery works is the best place to begin.
What this page is based on
- Companies House record for SEO-DONS LTD (16766013) (read 30 Oct 2026)
- PAS 63100:2024, fire protection for battery energy storage in dwellings (BSI, sponsored by DESNZ), PDF (read 3 Nov 2026)
- Electricity Safety, Quality and Continuity Regulations 2002, regulation 22 (sources running in parallel with the network) (read 3 Nov 2026)
- MCS guidance for installers on telling the network operator (G98 and G99) (read 3 Nov 2026)
- Ofgem decision on typical domestic consumption values (May 2026, in use from 1 July 2026), PDF (read 3 Nov 2026)
- PVGIS, the EU Joint Research Centre solar estimator (annual and monthly yields) (read 1 Nov 2026)
- DESNZ statistics on home batteries registered with MCS in existing homes (workbook to March 2026) (read 3 Nov 2026)
Questions about storage in your own home?
Tell us a little about your home and what you want a battery to do. Your message reaches SEO-DONS LTD, which publishes this guide, and we answer by email. It costs nothing to ask and commits you to nothing.
What happens next
- SEO-DONS LTD, the publisher of this storage guide, reads your message.
- We answer by email, using the same sources as the guide.
- What you do next, if anything, is up to you.