Retail energy use is dominated by lighting, refrigeration in food retail, and HVAC. Multi-site retailers can aggregate contracts to improve procurement leverage. Tenanted retail in shopping centres faces specific challenges around landlord-controlled supply and service charges. This guide covers the consumption profile and procurement options across retail sub-types.
Last reviewed: 12 May 2026
The Retail Energy Consumption Profile
Retail is the largest non-domestic energy-consuming sector in the UK by total consumption, reflecting the scale of the UK's physical retail estate. DESNZ non-domestic energy data identifies retail as a significant contributor to total commercial electricity demand, driven primarily by lighting, refrigeration in food-related formats, and space conditioning.
The energy profile varies significantly across retail sub-types. A small independent high street fashion retailer has a consumption profile dominated by lighting and a small amount of space heating. A convenience store adds open-fronted refrigeration and chilled display cabinets. A supermarket adds large-scale refrigeration plant, energy-intensive service counters, and significant HVAC systems managing the thermal load of refrigerated display.
CIBSE benchmarks for retail premises provide energy use intensity (EUI) figures per square metre of selling area. Small shops benchmark in the range of 200 to 400 kWh/m2/year. Supermarkets with significant refrigeration plant benchmark considerably higher, with large food retailers operating some of the most energy-intensive non-domestic premises per square metre in the UK estate.
Lighting as the Dominant Load in Non-Food Retail
For most high street retail, lighting is the single largest electricity load. Display lighting, fitting room lighting, window display lighting, and general space lighting combine to produce a continuous daytime electricity draw that in many older installations relies on halogen or fluorescent sources.
The economics of LED conversion in retail are well established. LED equivalents to common retail lighting sources typically consume 60 to 80% less electricity for equivalent lumen output. For a mid-sized fashion retailer with 200 square metres of selling area running 10 to 12 hours daily, full LED conversion can reduce lighting electricity consumption by several thousand kWh annually.
The payback period for LED conversion in retail depends on the existing installation, the hours of operation, and the current electricity unit rate. At current business electricity rates, payback periods of 18 to 36 months are common for full LED retrofits in high-street retail without grant support. DESNZ and local authority energy efficiency schemes occasionally provide grant or loan support for LED conversion in eligible small businesses.
Refrigeration in Food and Convenience Retail
Open-fronted refrigerated display cases are a feature of convenience stores, food-to-go operations, and supermarket formats. They are among the highest electricity loads per unit of floor area in any retail format.
Open-fronted cases lose cold air continuously when not fitted with night blinds or doors. Fitting doors or night blinds to open-fronted refrigerated cases is one of the highest-return energy efficiency investments in food retail, reducing refrigeration electricity consumption by 30 to 50% for the affected cases. The measure is increasingly standard in large supermarket refurbishments and is being adopted by convenience chains.
Refrigeration plant maintenance has the same effect in retail as in hospitality: condenser coil fouling, refrigerant charge drift, and door seal deterioration increase compressor running time and electricity draw. Regular maintenance schedules are essential to maintaining benchmark refrigeration efficiency.
HVAC in Retail Premises
Space conditioning in retail covers both heating in winter and cooling in summer. Many retail units use split-system air conditioning units for both functions. In large format retail, central plant with air handling units (AHUs) and variable air volume (VAV) systems is more common.
HVAC is typically the second or third largest electricity category in non-food retail, behind lighting. Extended trading hours in retail mean HVAC runs for longer daily periods than in office buildings with standard business hours. Many retail HVAC installations lack effective controls that link system output to occupancy or external temperature, resulting in energy waste during low-traffic periods and mild weather.
Extended Trading Hours and Energy Impact
UK retail operating hours have extended significantly over recent decades, with 7-day trading, late-night openings, and 24-hour formats common in convenience and supermarket sectors. Extended operating hours directly increase energy consumption proportionally for any load that tracks operating periods: lighting, HVAC, and operational equipment.
For retailers benchmarking their energy performance against CIBSE or DESNZ sector data, it is important to normalise for operating hours when comparing. A 24-hour convenience store cannot be meaningfully compared on raw kWh/m2 data with a retailer operating standard 8-hour trading days.
Multi-Site Contract Aggregation
Retailers operating multiple sites have procurement leverage that single-site operators do not. Aggregating gas and electricity volumes across multiple premises under a single framework agreement with one or more suppliers can produce lower per-unit rates than individual site negotiations.
Multi-site procurement also allows alignment of contract end dates, simplifying renewal management across the portfolio. For retailers with significant estate churn (openings, closures, relocations), a framework agreement with a supplier that accommodates site additions and removals mid-contract reduces procurement administration substantially.
For retail chains with total annual electricity spend above approximately £100,000, an I&C energy consultant or specialist retail energy procurement team can manage the aggregated tender process and ongoing contract management.
Tenanted Retail: Landlord-Controlled Supply and Service Charges
A significant portion of UK retail is conducted from tenanted premises in shopping centres, retail parks, and managed high streets where the landlord controls the energy supply arrangement. In these situations, the retail tenant does not contract directly with an energy supplier. Instead, the landlord or managing agent purchases energy for the entire site and recovers costs from tenants through service charges.
The service charge rate per kWh charged to tenants may not reflect the rate at which the landlord purchases energy. There is limited transparency in many managed retail environments about the procurement rate versus the recovery rate. Tenants in these arrangements should review their lease terms and service charge schedules to understand the basis on which energy costs are calculated and recovered.
Where tenants have separate electricity meters and direct supply contracts are possible under lease terms, obtaining a direct supply contract removes the landlord intermediary and can produce cost savings. Lease review and landlord negotiation are necessary prerequisites.
For tenants on landlord-controlled supply, energy efficiency measures within the demised premises reduce consumption and therefore the volume of energy subject to the service charge recovery rate, regardless of whether the unit rate is negotiable.
Editorial disclaimer: This page provides general guidance only and does not constitute energy, legal, or financial advice. Consumption benchmarks are indicative. Always obtain site-specific advice from qualified energy professionals and legal advice on lease terms before making procurement decisions.
Frequently asked questions
What is the biggest energy cost for a high street retail shop?
For most non-food high street retail, lighting is the single largest electricity load. Display lighting, window lighting, and general space lighting in older installations using halogen or fluorescent sources account for a significant proportion of electricity consumption. LED conversion is typically the highest-return efficiency measure for this type of retailer.
Can multiple retail sites be put on one energy contract?
Yes. Multi-site retailers can aggregate their electricity and gas volumes across premises under a single framework agreement with a supplier. Aggregated procurement typically produces lower per-unit rates than individual site negotiations and simplifies contract management. For portfolios with annual electricity spend above approximately £100,000, specialist I&C energy procurement support is usually cost-effective.
What is the energy impact of open-fronted refrigerated display cases in a convenience store?
Open-fronted refrigerated cases continuously lose cold air and are among the highest electricity loads per unit of floor area in food retail. Fitting doors or night blinds to open-fronted cases can reduce refrigeration electricity consumption for the affected units by 30 to 50%, with payback periods that are typically competitive with other retail energy efficiency investments.
I rent a unit in a shopping centre and pay energy through service charges. Can I reduce my costs?
In landlord-controlled supply arrangements, the tenant typically cannot directly negotiate the supply rate. However, reducing consumption within the demised unit reduces the volume subject to service charge recovery. Review your lease terms to establish whether a direct supply contract is permitted under your occupancy agreement, as this can remove the landlord intermediary entirely.
How do I benchmark my retail premises energy performance?
CIBSE TM46 provides energy use intensity benchmarks for retail premises by building type. DESNZ's Energy Consumption in the UK dataset provides national sector-level context. Comparing your site's kWh per square metre of selling area against the relevant CIBSE benchmark, normalised for operating hours, identifies whether performance is above or below sector norms.
How we verified this
This article draws on the published guidance from Ofgem, the Department for Energy Security and Net Zero, and the relevant primary legislation listed in the Sources section. No aggregator or supplier-produced content was used as a primary source.
