Food retail

Refrigeration never sleeps: cutting energy costs across a chain of food stores

Why convenience groups and food retailers pay more than they should for electricity, from 24-hour loads to capacity and half-hourly settlement, and how to fix it.

By the Business Savings Guru team · Updated 6 November 2026 · 3 min read

In short

Food stores use electricity at a steady rate day and night because chillers and freezers never switch off. That makes night rates, capacity charges, meter setup and buying every store together worth more than the headline unit rate. New and acquired stores are the most likely to be on expensive rates.

  • A 24-hour refrigeration load should be priced on its real pattern, not a typical shop profile.
  • Capacity set when a store had different equipment can cost money every month.
  • Market-wide half-hourly settlement is moving every meter onto half-hourly data, which changes how some contracts are priced.

The problem

Chillers and freezers run every hour of the year, in every store. A convenience store or small supermarket therefore uses electricity at a near-constant rate, day and night, and that shapes which costs matter most.

Priced on the wrong pattern

Many store contracts are quoted as if the store used power like a typical shop: busy in the day, quiet at night. A store whose load barely drops overnight can end up on terms that do not reward that pattern. The headline unit rate looks fine while the total cost does not.

Capacity from a previous fit-out

A store's agreed capacity is often set when it was first fitted out. New refrigeration, ovens or a coffee counter change what it draws. Too low means excess charges; too high means paying for unused headroom every month, and on larger supplies it can also set the band for fixed network charges.

New and acquired stores

When a group opens or acquires a store, the supply is often on deemed or out-of-contract rates until someone arranges a contract. In a growing chain there is nearly always one store in that position.

Half-hourly settlement

Market-wide half-hourly settlement is moving every electricity meter onto half-hourly data through 2026 and 2027. For stores with steady 24-hour loads that can change how suppliers price their contracts, so it is worth knowing which of your meters have moved.

The solution

1. Register every store

List every meter with its supplier, rates, capacity, meter type and end date.

2. Price on your real load

Use half-hourly data where you have it, so quotes reflect a 24-hour refrigeration load.

3. Check capacity store by store

Compare agreed capacity with real peak demand and adjust where it is far out.

4. Bring the estate together

Move stores to a common end date as contracts expire and tender the chain as one portfolio.

5. Add waste and water

Food waste, cardboard and general waste, and the separation rules in each nation, alongside water where you can choose a retailer.

Where we help

Where Business Savings Guru helps

  • Every store on one register

    Rates, capacity and end dates for every store, with out-of-contract meters flagged.

  • Quotes on your real load

    We price the estate on how your stores actually use power, day and night.

  • Capacity and meters checked

    We check each store's capacity and meter setup against what it draws today.

  • Waste and water too

    Food waste, cardboard and general waste collections, and water in England and Scotland, on the same register.

Questions we are asked

Is a fixed or flexible contract better for a store group?
It depends on your volume and how much price risk you want to carry. Many groups prefer a fixed price so refrigeration costs are known; larger groups sometimes buy flexibly.
We have just opened a new store. Is it on a contract?
Often not. A new unit or an acquired store is frequently on deemed or out-of-contract rates. Send us the first bill.