Most people assume a business bill reflects a fair market price simply because it arrived from a legitimate supplier through a formal contract. With business energy, that assumption is often wrong. Unlike household electricity and gas, which are protected by a price cap, commercial energy is priced through individually negotiated contracts, and the rate a business ends up paying depends far more on timing and negotiation than most owners realise.
How Business Energy Pricing Actually Works
There is no equivalent of the domestic price cap for UK businesses. Suppliers set commercial rates based on a company’s usage profile, contract length, credit standing, and crucially, whether that company has actively compared the market recently. Two businesses with near-identical energy usage can end up on very different rates simply because one renegotiated last year and the other has been sitting on the same contract for years without a second look.
This creates a strange dynamic where loyalty is effectively penalised. A business that quietly renews with the same supplier year after year, assuming the relationship earns it a fair deal, is often paying more than a newer customer who shopped around aggressively before signing.
The Renewal Trap Most Businesses Fall Into
The most common and costly mistake is letting a contract lapse into a rollover or deemed rate. Most commercial energy contracts include a renewal notice period, sometimes several months long, during which a business must formally notify its intent to switch suppliers. Miss that window, even by a few days, and the default outcome is usually a significantly more expensive rate.
Why the Sticker Price Isn’t the Whole Story
A genuinely useful energy comparison looks past the headline unit rate. Standing charges, the fixed daily fee a business pays regardless of how much energy it actually consumes, have been climbing steadily across the UK commercial market. A supplier offering an attractively low unit rate paired with a high standing charge can end up costing a business more over a year than a slightly higher rate paired with a modest standing charge.
Where Specialist Help Actually Pays Off
This is where a dedicated energy consultancy earns its keep.GLCG works with UK businesses to compare electricity, gas and water contracts across the market, weighing unit rates, standing charges and contract terms together to identify genuinely competitive deals rather than ones that merely look good on the surface.
Building a Habit That Actually Sticks
The businesses that consistently pay competitive energy rates are rarely the ones with the most sophisticated finance teams. More often, they are simply the ones that treat energy contract review as a recurring task, set on a calendar well ahead of each renewal date.
Where to Begin
For a business that has not looked closely at its energy contract in some time, the practical first step is straightforward: pull the last twelve months of bills, identify the current contract’s end date and notice period, and request a comparison quote well ahead of that deadline.
Why This Adds Up More Than People Expect
A gap of even a penny or two per kilowatt hour sounds trivial in isolation, but multiplied across a year of continuous usage, and compounded across every renewal cycle a business fails to review, it becomes one of the more significant hidden costs a company carries.
Frequently Asked Questions
Why doesn’t the UK’s energy price cap apply to businesses?
The price cap is a consumer protection measure that applies only to domestic households. Business electricity and gas are priced through individually negotiated commercial contracts.
What happens if a business misses its energy contract’s renewal notice period?
It typically defaults to a deemed or rollover rate, almost always priced above what could have been negotiated in advance.
Why does the standing charge matter as much as the unit rate?
Standing charges are fixed daily fees applied regardless of usage, so a low unit rate paired with a high standing charge can cost more overall.
Is it worth using a specialist consultancy rather than comparing suppliers independently?
For businesses without dedicated time to track the commercial energy market, a specialist consultancy typically identifies better terms more efficiently.
How often should a business review its energy contract?
At least once a year, ideally timed well ahead of the current contract’s renewal notice period.
