What UK commercial battery pages leave out: an audit of eight

What does a UK business learn when it searches for commercial battery storage? We read the pages that rank and counted what they say. Of the eight explainer pages we could read, none gave a price in pounds, none mentioned capital allowances, none named an electrical installation standard, and one mentioned VAT. They are good at describing benefits. They are quiet about the costs and rules that decide whether a purchase goes ahead.

How we did it

On 14 October 2026 we saved the first page of Google UK results for three searches: “commercial battery storage”, “industrial battery storage” and “commercial solar battery storage”. Across the three, 14 company sites appeared once we set aside social media, a forum thread and two blog articles, one from a property agent and one from a utilities comparison site. We fetched each page the way a browser would, removed the navigation, footer and forms, and counted whether the text mentioned each of a list of topics.

Nine pages could be read this way. Five returned an access block or almost no text to a script, so they are not counted. One of the nine is a shop listing of products with prices, so the tallies below cover the other eight, which are explainer and service pages.

A count of mentions is a blunt tool. It tells you whether a topic appears, not whether it is explained well, and a price loaded by script after the page opens would not be seen. Treat it as a map of what is on the page, not a score.

What the eight pages mention

All eight use the words cost or price. None puts a number next to them.

What the pattern says

The pages that explain commercial battery storage tend to cover how it works, the uses (peak shaving, storing solar, backup) and a prompt to ask for a quote. Half of them mention payback. Most leave out the things a finance director or energy manager needs to see before signing: what the system costs, whether the VAT is recoverable, how the tax relief works, what the network operator has to approve and which standards the installation should meet.

One likely reason is that a price quoted in public can be compared and challenged, and a rule stated in public can be checked, while many of these pages end in a prompt to get a quote. The result is that a buyer can reach the quote stage knowing the benefits and not the numbers.

We should be plain about our own position. This site is an independent publisher, not an installer, and it introduces readers to installers who pay for the introductions. That is a reason to check our sources rather than take our word, and every page links the ones it relies on.

What to ask instead

Each gap in the table is a question you can put to a supplier, and each has a place where the answer is set out:

• What will it cost, and on what basis? Published UK bands run from about £20,000 for a system of up to 100 kWh to £140 to £240 per kWh for containerised systems of 500 kWh and above. See the cost guide, and ask whether a quote’s kWh is nominal or usable with our quote checklist.
• Is the VAT recoverable, and which allowance applies? A commercial installation is standard-rated, and the Annual Investment Allowance covers the first £1m a year. The treatment above that is not settled. The tax guide sets out the sources.
• What does the network operator need to approve? Any battery that can export needs a connection agreement, and the timescale is the operator’s. See the G99 guide.
• Which standards does the design follow? The IET Code of Practice for Electrical Energy Storage Systems and Chapter 57 of BS 7671 apply to the installation, and product standards sit beneath them. See what a BESS is.
• What does the data say about your site? Half-hourly consumption is what shows whether a battery has anything to shave. See how to read it.

Our own buying guide to commercial battery storage puts these in one place, with the rules, the cost bands and the steps from first look to a working system.

Limits of this audit

It covers eight pages on one day. It counts mentions and cannot judge quality. Pages that block scripts, or that load content after the page opens, are missing, and the five unreadable results include an energy supplier’s page. The search results themselves change, and a different day or a different location would give a different list. We kept the tallies so the audit can be repeated.

Related reading

• Commercial battery storage: a buying guide
• How to compare commercial battery storage quotes
• Battery storage VAT and capital allowances for business