How small business gas usage compares to electricity
Gas is generally cheaper per kWh than electricity but is often consumed in much larger volumes where used for heating or cooking, meaning gas bills can rival or exceed electricity bills for premises with significant heating demand. A small restaurant, for example, may use considerably more gas than electricity across a year.
Businesses without gas heating, such as many modern offices using electric heat pumps or air conditioning systems, may have little or no gas consumption at all, in which case a gas contract may not be needed.
Indicative small business gas consumption bands
| Premises type | Typical annual kWh | Seasonality |
|---|---|---|
| Small office with gas heating | 15,000 - 30,000 | Winter-weighted |
| Café or small restaurant | 30,000 - 60,000 | Winter-weighted, cooking load year-round |
| Small retail unit | 10,000 - 25,000 | Winter-weighted |
| Small workshop or light industrial unit | 25,000 - 55,000 | Depends on process heat needs |
Standing charges and their impact on small gas users
For a business using relatively little gas, the standing charge can represent a disproportionately large share of the annual bill. This is worth factoring in when comparing suppliers, since a slightly lower unit rate paired with a higher standing charge may not always represent the cheaper overall option.
Suppliers vary in how they balance unit rate against standing charge, so comparing total annual cost estimates based on your actual consumption is generally more reliable than comparing headline unit rates alone.
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Seasonal exposure and fixed contracts
- Winter months typically account for the majority of annual gas consumption for heating-dependent premises
- Fixed contracts remove exposure to mid-winter wholesale price spikes
- Variable contracts can expose a business to higher costs during peak demand periods
- Locking in rates before autumn renewal season can sometimes secure more competitive pricing
Regional gas distribution costs
Gas distribution costs vary across the UK's regional gas distribution networks, meaning the same consumption level can be priced differently depending on location. This is a separate cost layer from wholesale gas prices and supplier margin.
Rural or off-grid premises without a mains gas connection cannot take a business gas contract and typically rely on alternatives such as LPG or oil, which are priced and supplied differently.
Improving gas efficiency to manage cost
- Servicing boilers and heating systems annually to maintain efficiency
- Addressing draughts and insulation gaps in older commercial premises
- Using programmable heating controls rather than manual overrides
- Reviewing kitchen equipment usage patterns in food service premises