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Insights

Useful, current and free of acronyms — UK utility insights from working consultants.

We publish what we'd want to read. Quarterly market briefings, regulatory updates, supplier reviews and the casework patterns we see most often. Aimed at finance teams, facilities managers and householders alike.

Water
Featured · 25 April 2026

The UK business water market in 2026: every Ofwat-licensed retailer, ranked

Since 2017 every English non-household water customer has been able to choose their water retailer. We profile every Ofwat-licensed retailer — Castle Water, Wave, Business Stream, Water Plus and more — and explain how to compare them.

Marcus Bell 9 min read
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Procurement

How UK business energy procurement actually works in 2026 (and what to ask any consultant before you sign)

How third-party intermediaries (TPIs) get paid, what new Ofgem disclosure rules require, and the four questions that separate a good consultant from a bad one.

23 Apr 2026 8 min
Switching

How to switch energy supplier in the UK (2026 guide): step-by-step, with the legal protections

A plain-English step-by-step guide to switching gas, electricity or both in the UK in 2026, including timing, cooling-off rights, smart-meter handling, supplier objection rules and what to do if your switch goes wrong.

21 Apr 2026 6 min
Suppliers

Octopus Energy in 2026: how the UK's biggest supplier got there, and is it right for you?

Octopus Energy is now the UK's largest energy supplier with ~24% market share. We review their tariffs, smart-meter offer, customer service, business proposition and the cases where it is — and isn't — the right call.

18 Apr 2026 9 min
Suppliers

British Gas vs EDF Energy in 2026: which is cheaper, and for whom?

A side-by-side comparison of British Gas and EDF Energy in 2026 — fixed and variable tariffs, customer service ratings, business propositions, and the situations where each one makes sense.

12 Apr 2026 8 min
Pricing

Ofgem energy price cap, April 2026: the numbers, the regional spread, and what to do about it

A practical breakdown of the £1,641/yr Ofgem price cap that took effect on 1 April 2026, including the latest unit rates, standing charges and what it means for fixed-deal switchers.

2 Apr 2026 7 min
Compliance

The UK back-billing rule, explained: when your supplier cannot recover old debt

Since 2018 UK energy suppliers have been prevented from recovering charges for energy used more than 12 months ago, where they failed to bill accurately. We explain who qualifies, how it works in practice, and how to file a claim.

20 Mar 2026 7 min
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