Energy efficiency in retail operations
Expert-defined terms from the Professional Certificate in Sustainable Retail Industry course at London School of Business and Administration. Free to read, free to share, paired with a professional course.
Optimizing the movement of air through store spaces to reduce heating, cooling,… #
Example: installing variable‑speed fans that adjust speed based on occupancy. Practical application includes using pressure sensors to balance zones. Challenges involve retrofitting older buildings and ensuring uniform temperature.
Systems that adjust artificial lighting levels according to natural light availa… #
Example: dimming LED fixtures when skylights provide sufficient illumination. Practical use reduces lighting load during daytime peaks. Challenges include calibrating sensors for seasonal sunlight variations and preventing flicker that affects product display.
Comprehensive assessments of energy consumption in non‑customer areas such as st… #
Example: measuring refrigeration unit load in a warehouse. Practical application identifies hidden waste and prioritizes upgrades. Challenges include limited access to utility data and coordinating with operations staff.
Enhancements to walls, roofs, and windows that reduce heat loss or gain. Example #
adding low‑E glass to storefront windows. Practical use lowers HVAC demand and stabilizes indoor climate. Challenges include high upfront costs and maintaining storefront aesthetics.
Monitoring the amount of CO₂ emitted per unit of energy used. Example #
calculating kg CO₂/kWh for store electricity. Practical application helps set reduction targets and compare sites. Challenges involve obtaining accurate utility factors and accounting for renewable energy credits.
Managing refrigeration systems to maintain product safety while minimizing energ… #
Example: using cascade compressors with staged temperature controls. Practical use reduces compressor run‑time and eliminates over‑cooling. Challenges include balancing food safety regulations with energy goals.
Enrolling in programs that reduce store load during grid stress events in exchan… #
Example: temporarily dimming signage lights during peak demand. Practical application provides cost savings and grid support. Challenges include ensuring customer experience is not compromised.
Software platforms that collect, analyze, and control energy‑using equipment #
Example: a dashboard that displays real‑time HVAC energy consumption. Practical use enables data‑driven decisions and automated set‑point adjustments. Challenges include integration with legacy controls and staff training.
A financing model where a third‑party provider implements efficiency measures an… #
Example: an ESCO installs LED lighting with a pay‑back tied to reduced electricity bills. Practical application removes capital barriers. Challenges include contract negotiations and verifying savings.
A voluntary program recognizing stores that meet strict energy efficiency criter… #
Example: a retailer achieving Energy‑Star status for its lighting system. Practical use provides marketing advantage and benchmark data. Challenges involve meeting stringent performance thresholds and maintaining compliance.
Programming non‑essential equipment to operate during off‑peak hours. Example #
running floor cleaning machines at night. Practical application reduces peak demand charges. Challenges include ensuring equipment is ready for opening hours and managing wear‑and‑tear.
Using variable‑frequency drives to match fan speed with required airflow #
Example: reducing HVAC fan speed by 30 % when occupancy drops. Practical use cuts motor electricity dramatically. Challenges include selecting appropriate VFD sizes and preventing static pressure issues.
LED lighting units installed directly on the sales floor to provide uniform brig… #
Example: replacing halogen track lights with LED panels. Practical application improves visual merchandising while lowering wattage. Challenges include initial cost and ensuring color rendering meets brand standards.
Capturing waste heat from processes such as refrigeration condensers to preheat… #
Example: using condenser heat to supply domestic hot water for employee facilities. Practical use reduces boiler fuel consumption. Challenges include system complexity and maintaining hygiene standards.
Combining rooftop photovoltaic panels with grid power to meet store electricity… #
Example: a 50 kW PV array supplying 30 % of daily load. Practical application lowers utility bills and carbon footprint. Challenges involve roof orientation, shading, and interconnection agreements.
Dividing the store into separate climate zones each controlled independently #
Example: separate controls for the front display area and back‑room storage. Practical use tailors heating and cooling to specific needs, reducing waste. Challenges include added ductwork complexity and potential imbalance.
Ensuring consistent light levels across the retail floor to avoid hotspots and s… #
Example: using diffused LED fixtures to achieve a uniformity ratio of 0.8. Practical application enhances product visibility and customer comfort. Challenges include balancing uniformity with accent lighting.
Tracking pollutants, humidity, and temperature to maintain a healthy environment #
Example: installing CO₂ sensors that trigger increased ventilation when levels exceed 800 ppm. Practical use supports occupant health and can reduce unnecessary ventilation. Challenges involve sensor placement and data interpretation.
Systematic replacement of legacy lighting with LED technology across a retail ch… #
Example: a rollout plan that upgrades 200 stores over two years. Practical application standardizes lighting performance and reduces maintenance. Challenges include logistics, disposal of hazardous lamps, and ensuring consistent brand lighting.
Predicting future energy consumption based on historical data, sales trends, and… #
Example: using machine learning to anticipate a 15 % increase in cooling load during a heat wave. Practical use informs procurement and demand‑response decisions. Challenges include data quality and model accuracy.
Adjusting the parameters of daylight and occupancy sensors to match store operat… #
Example: setting occupancy delay to 10 minutes to avoid frequent on/off cycling. Practical application maximizes energy savings while preserving lighting quality. Challenges include frequent re‑calibration due to layout changes.
Thin metallic layers applied to glass that reflect infrared radiation while allo… #
Example: installing low‑E film on storefront windows to cut cooling load by 20 %. Practical use improves thermal performance without sacrificing transparency. Challenges include cost and potential impact on viewability.
Installing separate meters for distinct loads such as lighting, refrigeration, a… #
Example: a sub‑meter that records lighting energy in 15‑minute intervals. Practical application provides precise usage insights for targeted upgrades. Challenges include wiring complexity and data management.
Connecting a retail site to a localized electricity network that can operate ind… #
Example: a store with solar panels and a battery bank that supplies power during outages. Practical use enhances resilience and can lower peak demand charges. Challenges involve regulatory compliance and control strategy design.
Adhering to high‑efficiency motor classifications for equipment such as escalato… #
Example: selecting an IE3 motor for a stock‑moving conveyor. Practical application reduces motor losses and improves overall system efficiency. Challenges include higher purchase price and ensuring compatibility with existing drives.
Using architectural features like operable windows and vents to provide cooling… #
Example: designing a store façade with high‑set vents that promote stack effect. Practical use cuts HVAC electricity during mild seasons. Challenges include weather variability and security concerns.
Adjusting temperature targets according to the number of people present. Example #
raising cooling set‑point from 22 °C to 24 °C when occupancy falls below 30 %. Practical application aligns comfort with energy use. Challenges involve reliable occupancy detection and avoiding discomfort during sudden crowd spikes.
Ensuring stable electricity characteristics to protect sensitive retail equipmen… #
Example: installing surge protectors and harmonic filters for POS systems. Practical use prevents downtime and improves equipment lifespan. Challenges include identifying sources of distortion and cost of mitigation devices.
Using sensor data to anticipate equipment failures before they occur. Example #
analyzing motor vibration to schedule coil cleaning before efficiency drops. Practical application maintains optimal performance and avoids energy spikes. Challenges include data analytics expertise and sensor deployment costs.
Identifying loss of refrigerant that reduces system efficiency and increases gre… #
Example: using infrared detectors to locate leaks in display cases. Practical use restores cooling capacity and reduces emissions. Challenges involve compliance with refrigerant regulations and rapid repair logistics.
Contracting with external renewable generators to supply electricity to retail l… #
Example: entering a 5‑year PPA for wind power covering 40 % of store consumption. Practical application lowers carbon intensity without on‑site installation. Challenges include price volatility and verification of renewable attributes.
Systematic testing and adjustment of existing building systems to improve effici… #
Example: rebalancing HVAC dampers after a store remodel. Practical use extracts hidden savings from legacy installations. Challenges include access constraints and coordination with store operations.
Devices that monitor and control power to plug‑in equipment such as coffee maker… #
Example: a smart plug that powers down a digital signage screen after closing. Practical application reduces phantom loads. Challenges include ensuring compatibility with diverse equipment and maintaining user convenience.
Using solar collectors to preheat water for restroom facilities or cleaning proc… #
Example: a 3 m² collector providing 70 % of hot‑water demand. Practical use cuts natural‑gas consumption and lowers operating costs. Challenges involve seasonal variability and system sizing.
Selecting glass with appropriate thermal performance and incorporating external… #
Example: installing external louvers that block summer sun while allowing winter light. Practical application balances daylighting with thermal control. Challenges include aesthetic considerations and local building codes.
Dividing refrigeration equipment into zones with distinct temperature targets ba… #
Example: setting freezer zones to –18 °C while maintaining a fresh‑food zone at 4 °C. Practical use avoids over‑cooling and reduces compressor load. Challenges include ensuring proper airflow between zones.
Using infrared cameras to locate heat loss or gain areas in the building envelop… #
Example: detecting missing insulation behind a wall panel. Practical application guides targeted retrofits. Challenges include interpreting images correctly and accessing hidden building sections.
Advanced HVAC technology that modulates refrigerant flow to match load demands a… #
Example: a VRF system supplying both heating and cooling to a multi‑level store. Practical use achieves high part‑load efficiency. Challenges involve higher capital cost and specialized maintenance.
Recovering energy from exhaust air to precondition incoming fresh air. Example #
installing an ERV that transfers 70 % of heat from outgoing air to incoming air. Practical application reduces heating and cooling demand. Challenges include maintaining humidity control and regular filter replacement.
Reducing water consumption to lower the energy required for heating and pumping #
Example: fitting restroom faucets with aerators that cut flow by 30 %. Practical use reduces both water bills and associated energy. Challenges involve ensuring sufficient flow for hygiene standards.
Adjusting lighting operation based on foot traffic patterns to extend lamp life #
Example: dimming lights in low‑traffic aisles during off‑peak hours. Practical application saves both energy and maintenance costs. Challenges include accurately mapping traffic flow and avoiding customer perception of dimness.
Wireless devices that transmit real‑time energy data to a cloud platform for ana… #
Example: a Wi‑Fi‑connected power meter that logs consumption every minute. Practical use enables remote monitoring and rapid anomaly detection. Challenges include network security and data bandwidth.
Designing stores to eliminate all operational carbon emissions through efficienc… #
Example: a flagship store that combines high‑performance envelope, all‑LED lighting, and on‑site solar to achieve net‑zero electricity. Practical application serves as a brand showcase and meets corporate sustainability goals. Challenges involve balancing cost, performance, and brand image.
Breaking down energy consumption by functional areas such as sales floor, back‑o… #
Example: a monthly report showing that lighting accounts for 35 % of total electricity. Practical use directs focus to high‑impact areas. Challenges include ensuring accurate allocation and avoiding data overload.
Technology that reduces the time LEDs take to reach full brightness after power‑… #
Example: using smart drivers that achieve 90 % output within 2 seconds. Practical application improves customer experience during store opening and avoids temporary over‑lighting. Challenges include selecting compatible drivers and managing cost.
Installing equipment that captures CO₂ emissions from on‑site combustion sources… #
Example: a small‑scale amine scrubber attached to a natural‑gas boiler. Practical application reduces net emissions for stores with on‑site generation. Challenges include high operating cost and limited capture efficiency for small loads.
Strategic actions that influence consumer energy use to align with grid conditio… #
Example: scheduling non‑critical cleaning equipment during off‑peak periods to receive utility rebates. Practical use lowers electricity bills and supports grid stability. Challenges include coordinating with store schedules and maintaining service quality.
Designing point‑of‑sale hardware to consume minimal power during operation and i… #
Example: a POS terminal that enters a deep‑sleep mode after 5 minutes of inactivity. Practical application reduces overall store electricity use. Challenges include ensuring rapid wake‑up for transaction speed.
Installing solar panels as canopies over parking areas, providing both electrici… #
Example: a 200 kW canopy covering a store’s parking lot. Practical use generates renewable energy while enhancing customer comfort. Challenges involve structural load analysis and maintenance of panels under traffic exposure.
Using stable underground temperatures to provide heating and cooling with high e… #
Example: a geothermal loop that supplies 4 kW of heating for a 5,000 sq ft store. Practical application reduces reliance on fossil‑fuel boilers. Challenges include drilling costs, site suitability, and seasonal performance variations.
Water heating devices that extract heat from ambient air to raise water temperat… #
Example: a 3‑ton heat pump water heater serving restroom facilities. Practical use lowers electricity consumption compared to conventional electric heaters. Challenges include ensuring adequate airflow and managing noise.
Creating ice during low‑cost electricity periods and using it to provide cooling… #
Example: an ice‑bank that supplies chilled water to the HVAC system in the afternoon. Practical application shifts energy use to off‑peak hours and reduces demand charges. Challenges include space for storage tanks and control complexity.
Choosing the appropriate hue of white light to enhance product appearance while… #
Example: using 4000 K LEDs for apparel displays to render colors accurately. Practical use supports brand consistency and shopper comfort. Challenges involve balancing aesthetic preferences with energy savings.
Software routines that distribute electrical demand across multiple devices to a… #
Example: an algorithm that staggers start‑up of refrigeration units during opening hour. Practical application smooths load profile and reduces peak demand fees. Challenges include real‑time data acquisition and ensuring no service interruption.
Centralized collection and processing of utility meter readings for analysis #
Example: an MDM platform that aggregates hourly electricity data from 150 stores. Practical use enables trend analysis, anomaly detection, and reporting. Challenges involve data quality, integration with existing ERP systems, and cybersecurity.
Targeted temperature regulation for specific zones such as refrigerated display… #
Example: a micro‑climate system that supplies chilled air directly to a bakery case without affecting the surrounding floor. Practical application improves comfort and reduces overall HVAC load. Challenges include duct design and control coordination.
Achieving a performance level where annual renewable energy generation equals or… #
Example: a store that meets NZEB criteria through combined efficiency measures and solar PV. Practical use demonstrates leadership and can attract sustainability‑focused customers. Challenges involve comprehensive planning, financing, and ongoing performance verification.
Tools that collect real‑time comfort data from staff and customers to fine‑tune… #
Example: a tablet kiosk where employees rate temperature comfort, influencing HVAC adjustments. Practical application aligns energy use with perceived comfort, avoiding over‑conditioning. Challenges include response bias and integrating feedback into control logic.
Metric that compares actual PV output to theoretical maximum under standard test… #
Example: a performance ratio of 0.85 indicating 85 % efficiency after losses. Practical use helps assess system health and identify degradation. Challenges involve accounting for shading, temperature, and soiling effects.
Improving the phase relationship between voltage and current to reduce apparent… #
Example: installing capacitor banks to raise power factor from 0.85 to 0.95. Practical application lowers utility penalties and improves system efficiency. Challenges include sizing capacitors correctly and avoiding resonance.
Managing defrost cycles to minimize energy waste while preventing ice accumulati… #
Example: using sensor‑driven defrost that activates only when frost thickness exceeds a set threshold. Practical use maintains cooling efficiency and reduces compressor load. Challenges include sensor reliability and integration with store operating hours.
tradable credits that represent the environmental attributes of one megawatt‑hou… #
Example: purchasing RECs to claim that a store’s electricity is 100 % renewable. Practical application meets corporate sustainability goals without on‑site generation. Challenges involve verifying REC provenance and avoiding double counting.
Advanced controllers that use machine learning to anticipate heating and cooling… #
Example: a controller that predicts a 2 °C temperature rise due to an upcoming heat wave and pre‑cools the store during off‑peak hours. Practical use reduces peak demand and improves comfort. Challenges include data privacy, model training, and system integration.
Using solar‑generated heat to raise the temperature of refrigerant before compre… #
Example: a solar collector loop that pre‑heats suction gas for a display case compressor. Practical application cuts electricity consumption during daylight hours. Challenges include system complexity and maintaining refrigerant temperature control.
Storing heat or cold for later use to shift energy consumption away from peak pe… #
Example: a chilled water tank that stores excess cooling at night for daytime use. Practical use smooths load profile and reduces peak demand. Challenges involve storage losses, space requirements, and control strategy.
HVAC approach that varies airflow to maintain temperature set‑points while keepi… #
Example: VAV boxes that reduce airflow to a quiet zone during low occupancy. Practical application improves part‑load efficiency compared to constant‑air systems. Challenges include precise airflow control and potential noise.
Capturing thermal energy from processes such as refrigeration condensers to preh… #
Example: a heat exchanger that supplies 60 % of hot‑water demand using waste heat. Practical use reduces boiler fuel consumption. Challenges include maintaining water quality and ensuring sufficient temperature lift.
Equipment designed to draw no electricity when turned off or in standby mode #
Example: a digital signage player that fully disconnects power when switched off. Practical application eliminates hidden energy waste. Challenges include retrofitting existing devices and ensuring rapid reactivation when needed.