Energy costs for retail businesses vary widely depending on shop size, opening hours, the volume of refrigeration or display lighting, and the type of heating used. Although retailers generally consume less energy than restaurants or manufacturing sites, many still face substantial monthly bills due to long trading hours, high lighting loads, and, in some sectors, intensive refrigeration. This data guide outlines typical monthly costs and the variables influencing how much UK retailers pay in 2025.
Typical monthly energy costs for retail shops
Most retail businesses spend between £250 and £2,500 per month on combined gas and electricity. Convenience stores and supermarkets sit at the upper end of the range, while boutiques and small independent shops are at the lower end.
Typical monthly costs by retail type
| Retail category | Electricity (kWh/month) | Gas (kWh/month) | Monthly electricity cost | Monthly gas cost | Typical total monthly spend |
|---|---|---|---|---|---|
| Small boutique / clothing shop (under 1,000 sq ft) | 800–1,800 | 200–800 | £170–£390 | £20–£70 | £200–£450 |
| Medium retail unit (1,000–5,000 sq ft) | 2,000–4,500 | 600–1,500 | £420–£950 | £55–£130 | £500–£1,150 |
| Convenience store / off-licence | 4,000–8,000 | 800–2,000 | £840–£1,900 | £70–£170 | £1,000–£2,100 |
| Small supermarket / grocery (5,000–10,000 sq ft) | 10,000–18,000 | 1,500–3,000 | £2,100–£3,800 | £130–£260 | £2,300–£4,200 |
Pricing assumptions used:
- Electricity unit rates: 21–24p/kWh
- Electricity standing charges: 45–70p/day
- Gas unit rates: 6.5–8.2p/kWh
- Gas standing charges: 27–45p/day
Where retail businesses use the most energy
The energy demands of retail vary by sector. Lighting is the dominant cost for most shops, while refrigeration drives up usage for food-based retailers.
| Consumption category | Share of total energy (typical) | Notes |
|---|---|---|
| Lighting | 30–55% | High-intensity LED or halogen display lighting can run for 10–14 hours daily. |
| Refrigeration | 20–60% | Huge for convenience stores, off-licences, and grocers; negligible for boutiques. |
| HVAC (heating and air-conditioning) | 15–30% | Long opening hours increase heating and cooling loads. |
| Hot water | 2–5% | Low impact unless staff facilities or back-room wash stations are used often. |
| Office and till equipment | 3–8% | EPOS, printers, computers, CCTV, and security systems. |
Retail sector comparisons
Different retail segments have sharply different energy profiles.
| Sector | Expected monthly cost pattern | Main drivers |
|---|---|---|
| Clothing and fashion | Low to medium (£200–£600) | Lighting, modest HVAC, long hours |
| Electronics | Low to medium (£250–£700) | Bright lighting, demo units on display |
| Convenience stores | High (£1,000–£2,500) | Refrigeration is extremely energy-intensive |
| Pharmacies | Medium (£300–£900) | Lighting, HVAC, chilled medicine cabinets |
| Furniture stores | Low to medium (£300–£1,000) | Large floor areas but low equipment load |
| Newsagents | Medium to high (£600–£1,400) | Fridges, long opening hours |
Refrigeration impact on costs
Refrigeration makes a dramatic difference to monthly spending. Retailers with even a small number of chillers pay noticeably more.
| Refrigeration load | Additional electricity usage | Approx added monthly cost |
|---|---|---|
| 1–2 small display fridges | +250–400 kWh | +£55–£90 |
| 3–5 large chillers | +1,000–2,000 kWh | +£210–£450 |
| Walk-in chiller or freezer | +2,500–4,000 kWh | +£520–£900 |
| Full convenience store refrigeration line | +5,000–9,000 kWh | +£1,050–£2,000 |
In many convenience stores, refrigeration alone accounts for £800–£1,800 per month.
Electricity-heavy vs gas-heavy retail sites
Most retail units are electricity dominant. Gas is usually only needed for heating.
Typical electricity-heavy shop example
- 4,000 kWh electricity + 300 kWh gas
- Approx monthly cost: £900–£1,200
Typical gas-heated medium shop example
- 2,500 kWh electricity + 1,200 kWh gas
- Approx monthly cost: £600–£850
Electricity-heavy shops pay more because lighting and chillers use high-draw electric motors and compressors.
Daily usage patterns
Retail energy consumption rises and falls predictably:
- 06:00–10:00: heating, lighting, and refrigeration stabilisation
- 10:00–18:00: peak lighting usage; continuous refrigeration draw
- 18:00–22:00: extended trading and HVAC usage
- Overnight: refrigeration, security lighting, alarms, CCTV, and HVAC standby
Even small shops often use 5–8 kWh overnight, adding £35–£55 per month.
How to calculate your retail energy bill
- Identify monthly kWh usage – Check previous bills or smart meter data.
- Multiply usage by unit rates – Example: 2,500 kWh electricity × 23p = £575
- Add standing charges – Electricity (60p/day) + gas (33p/day) ≈ £28 per month
- Apply VAT and CCL – Most retailers pay 20% VAT and Climate Change Levy unless exempt.
- Add gas usage – For example: 900 kWh gas × 7p = £63
Total estimated monthly cost: £666 + VAT + CCL.
How to reduce energy costs in a retail business
- Install LED lighting, which can cut lighting costs by 50–70%.
- Add timers or motion sensors in stockrooms, washrooms, and corridors.
- Improve refrigeration efficiency by cleaning coils and replacing door seals.
- Review HVAC settings to prevent over-heating or over-cooling.
- Use night blinds on open display chillers to reduce compressor load.
- Switch tariffs using a comparison service like EnergyCosts.co.uk, which often saves retailers 10–22% depending on usage.
- Reduce overnight load by shutting down non-essential equipment at close of trade.
Summary
A retail business typically spends between £250 and £2,500 per month on energy, depending on shop size, opening hours, and whether refrigeration dominates demand. Lighting is usually the biggest cost for clothing, electronics, and general retail, while refrigeration pushes convenience stores and small supermarkets to the top of the range. With tariff optimisation, updated lighting, and simple refrigeration improvements, many retailers can reduce their monthly bills significantly.
FAQ
A small boutique or clothing shop usually spends £200–£450 per month, depending on lighting intensity, opening hours, and whether the space uses electric or gas heating.
Convenience stores rely heavily on refrigeration, which can use 5,000–9,000 kWh of electricity per month. This often adds £1,050–£2,000 to monthly bills, making their total spend far higher than non-food retailers.
Most retail units are electricity dominant. Lighting alone can account for 30–55% of total energy usage, while gas is mostly used for space heating and usually represents under 20% of the total bill.
Longer hours increase lighting and HVAC usage. Shops trading 12 hours daily often use 20–30% more electricity than those operating typical 9–5 hours, especially during winter months.
Multiply your monthly kWh usage by the unit rate and add standing charges. For example, 2,500 kWh at 23p costs £575, plus roughly £25–£30 for standing charges. If you also use 900 kWh of gas at 7p, that adds £63.
Retail lighting operates for long periods, often 10–14 hours a day, and display lighting may use high-intensity fittings. Even efficient LED systems can account for a large share of electricity use.
Switching from halogen or fluorescent lighting to LEDs typically cuts lighting energy use by 50–70%, saving many retailers between £40 and £200 per month, depending on store size.
Most retailers use 5–8 kWh overnight for refrigeration (if any), security lighting, alarms, and CCTV. This adds £35–£55 per month to the bill, even when closed.
Yes. Many retailers save 10–22% by using comparison tools like EnergyCosts.co.uk to move to cheaper tariffs, especially if they are currently on a standard variable contract.