About Battery Storage for Business

Battery Storage for Business is an independent information site about behind-the-meter battery energy storage (BESS) for UK businesses — manufacturers, cold stores, logistics depots, large offices, multi-site retail, EV fleet operators and farms. It is published by SEO Dons Ltd (Company No. 16766013, 71–75 Shelton Street, London WC2H 9JQ).

We are not an installer and we do not sell batteries. We publish sourced figures, calculators and guides on commercial battery storage. Send your details and we reply by email. There is no installer partner behind this site, so no enquiry is passed to an installer and nothing is passed on. We are explicit about the cases where a battery does not pay: we would rather say so now than waste your time.

Why a storage specialist, not a general installer

Most installers treat a commercial battery like a big domestic one. That's where the money is lost. A commercial site is billed on the shape of its half-hourly demand — red-band DUoS, available-capacity (kVA) charges, peak unit rates — and a battery only pays if it's sized and controlled around that shape. The right starting point is a year of the site's half-hourly meter data, read against the value streams that actually apply: peak-shaving, arbitrage, solar self-consumption, backup, and grid-flexibility revenue. The peak-shaving calculator on this site applies the published network charge bands to your own figures, so any installer proposal can be checked against your own numbers rather than a showroom estimate.

How we work

We are independent of every battery manufacturer and tied to no installer's order book, so the guidance reflects your duty cycle rather than someone's stock position. What we look for in a good specification: lithium iron phosphate (LFP) cells for thermal stability and cycle life; a design that follows the IET Code of Practice for Electrical Energy Storage Systems, with fire, ventilation and separation engineered in and your insurer engaged before energisation rather than after; a G99 application lodged with the DNO early, so the connection runs in parallel with the build instead of holding it up; and, where grid-flexibility revenue is worth chasing, a credible route to market through an aggregator. The calculator shows its working, so you, your accountant, or any installer you invite to quote can check the arithmetic against your own meter data.

Honest about the limits

Storage doesn't suit every site. If your load is flat, your tariff is fixed at a low rate, and you have no red-band exposure or solar to soak up, a battery may not pay back inside a sensible horizon — and we will tell you so. This site is published by SEO Dons Ltd, not an installer; there is no installer partner behind it and nothing is passed on, so there is no reason to talk a site into a battery. If the numbers say no, that is the answer.

How to check the installer you end up with

We hold no installation accreditations, because we do not install anything. The certifications below are the ones the installer quoting for your system should hold, and every one can be checked directly with the issuing body before you sign. Ask for the registration number and verify it yourself — a legitimate contractor will expect the question.

• MCS certification for battery storage — check at mcscertified.com. Required if you want SEG payments for any associated solar export.
• NICEIC or equivalent electrical competence — check at niceic.com
• RECC membership for consumer-code protection — check at recc.org.uk
• TrustMark licence — check at trustmark.org.uk
• An insurance-backed workmanship warranty — ask who underwrites it and for how long, and get it in writing

The design itself should follow the IET Code of Practice for Electrical Energy Storage Systems, with cells to BS EN/IEC 62619 and the system to BS EN/IEC 62933, installation under CDM 2015, a G99 connection agreement with your DNO, and your insurer engaged before energisation. If a quote does not mention G99, treat that as a red flag rather than an oversight.