Energy Efficiency

Energy efficiency is the ability to perform the same task or produce the same output while using less energy. In a restaurant, energy efficiency means reducing unnecessary electricity, gas or other fuel consumption without compromising food safety, cooking performance, sanitation or guest experience.

Where restaurants use energy

Major energy users commonly include refrigeration and freezers, cooking equipment, ventilation and make-up air systems, dishwashers, water heating, lighting and HVAC. The largest opportunities depend on the building, equipment age, operating hours, menu and production volume.

Practical ways to improve energy efficiency

• Cooking equipment: switch off or reduce idle equipment when safe and appropriate; use the right-sized appliance for the batch and task.
• Refrigeration: maintain door seals, clean condenser coils, avoid overloading and minimize unnecessary door opening.
• Ventilation: maintain filters and fans, and use demand-controlled ventilation where suitable and approved.
• Dishwashing: run full racks, maintain the machine and use the correct operating settings.
• Lighting: use efficient lighting and turn off lights in unoccupied areas where appropriate.
• Production planning: consolidate compatible cooking tasks and use equipment capacity efficiently without compromising quality or safety.

Energy efficiency versus energy conservation

Energy efficiency improves the amount of useful work achieved per unit of energy, often through better equipment or operating practices. Energy conservation reduces energy use by changing behaviour or reducing unnecessary activity. For example, replacing an old inefficient refrigerator with a high-efficiency model improves efficiency; turning off an unused piece of equipment is energy conservation.

How to measure improvement

Track utility consumption over time and compare it with relevant activity, such as sales, covers, operating hours or production volume. A reduction in total energy use may simply reflect fewer operating hours, so normalize results where possible to understand actual efficiency.

Chef’s tip: Start with equipment that runs continuously, especially refrigeration and ventilation. Do not switch off refrigeration, hot-holding or other food-safety equipment in a way that puts food outside required temperature controls. Maintenance and staff habits often deliver savings before major capital upgrades are needed.