Heating, cooling, refrigeration, and cooking take a toll on energy consumption in restaurants and are extremely expensive. If restaurants analyze the most expensive energy activities and work towards optimizing them, costs and environmental effects can be minimized. This blog from Aemaco highlights energy consumption in restaurants and offers practical solutions for efficiency.
Table of Contents
1. Cooking Equipment
One of the largest energy consumers in a restaurant is the cooking equipment like ovens, grills, fryers, and stovetops. Beside inefficient appliances, drapes and blinds are often left open, enabling sunlight to heat the premises and drive up the internal temperature, which in turn drives up energy bills. To optimize energy use, restaurants should invest in ENERGY STAR-certified appliances, do regular cleaning and servicing, and train staff on efficient cooking techniques.
Induction
For instance, using lids on pots, cooking in batches, and turning off idle equipment can all contribute to reducing energy waste. Energy-efficient alternatives like induction cooktops and combi-ovens use less energy while maintaining high performance.
Did you know AI-powered monitoring can help optimize energy consumption in cooking, refrigeration, and HVAC systems? Read our Energy Management Solution page.
2. Refrigeration and Freezing
Freezers, reach and walk in refrigerators, and other cooling equipment must operate non-stop, and inefficient refrigeration leads to increased energy consumption in restaurants. For refrigerators to operate most effectively, temperature levels must be targeted along with airflow around the unit, sealing the door gaskets, and airflow.
Conserving
Use of energy efficient units and lighting, such as those equipped with variable-speed compressors and LEDs, is also helpful in conserving energy. Additionally, using night curtains on display cabinets, organizing food baskets to minimize door openings, and implementing policies for reduced door usage can further improve energy efficiency.
Read our Sustainability section to learn how energy-efficient solutions contribute to cost savings and environmental responsibility.
3. Heating, Ventilation, and Air Conditioning (HVAC)
HVAC systems directly affect the comfort of the patrons and, if not optimized, these systems can also account for wasteful energy consumption in restaurants. Air filters should be routinely washed, and any possible leaks checked as part of regular maintenance for increased efficiency. Restaurant operating hours can be programmed into thermostats to cool or heat the establishment only during operating hours.
Insulation
Adequate insulation and energy efficient HVAC units further assist in decreasing the utility bill. Restaurants can implement heat recovery ventilation (HRV) systems which are designed to take waste heat from the kitchen exhaust and use it to preheat incoming air. This would further increase savings.
Smart controls for air conditioning systems can improve HVAC efficiency in restaurants – check out our Air-Econ page.
4. Lighting Systems
Restaurants which operate over long hours of the day incur increased expenses in lighting as well. Replacing incandescent bulbs with LED ones saves about 75% of energy. Motion sensors can be added to low to medium-use locations like the bathrooms or storage rooms so that lighting does not remain on if rooms are unoccupied.
Consumed
The use of more natural light and dimmable lighting can also optimize how energy is consumed. Smart light controls that adapt based on the pre-determined time of day and occupancy are another alternative that saves energy without losing ambiance.
Want additional resources on energy-saving strategies and industry trends? Visit our Insights page.
5. Water Heating
Heating water is vital for cleaning, dishwashing, and food preparation in any restaurant. It is always a bank drainer, as dishwashers consume huge amounts of hot water. Oversized or inefficient storage tanks can consume excessive energy. Replacing traditional water heaters with tankless models can reduce energy use by heating water only when needed, minimizing unnecessary storage and standby energy loss.
Materials
Wrapping hot water pipes in insulating materials can also help save energy. Furthermore, low-flow faucets or pre-rinse spray valve installation are significant in minimizing water consumption. Preforming such maintenance tends to lower the amount spent on both water and management. Regular maintenance such as descaling can also improve performance and longevity.
6. Dishwashing and Sanitation
Energy consumption in restaurants is significantly affected by its dishwashing and sanitation equipment. Dishwashers, especially substandard ones, waste a lot of hot water and electricity. Dishwashers with an ENERGY STAR certification are more economical with energy and water, and more sanitary. Dishwashers should only run when full, using green detergent, and ensuring that the water temperature is adequate.
Drying
Prerinsing used dishes and soaking some utensils improves the chance of minimizing the washing cycles, saving time, energy, and water. Saving energy costs during the drying process can be done by air drying rather than using heat.
7. Kitchen Exhaust and Ventilation Systems
The use of kitchen exhaust hoods is vital for the maintenance of safety and hygiene in the kitchen beyond the normal and these consume a lot of energy. Older exhaust systems operate all of the time, even when they are not needed. Installing demand control ventilation (DCV) systems that control fan speed according to cooking activity can cut down energy wastage.
Airflow
Periodic cleaning of grease filters and ducts improves airflow efficiency as well. Other means like heat recovery systems that use waste heat for externally preheating water can help save a lot of energy. Exhaust hoods are often fitted with input ventilation systems, so that the unwanted air flowing into the building can be minimized.
8. Food Storage and Preparation Areas
Food storage and preparation areas have a variety of appliances that can sometimes use energy at the same time, including warming trays, display cases, and beverage dispensers. Placing these in well-ventilated places helps to avoid overheating and also reduces the load on refrigeration units.
Preparation
Restaurants can save energy by turning off non-essential appliances when not in use, combining food preparation steps, and employing energy-saving food warmers. Furthermore, properly insulating storage rooms and minimizing the use of heated display cases also reduce energy expenditure.
9. Employee Training and Energy Awareness
Even with new, more efficient tools and equipment, energy waste is still likely to occur due to misuse. Teaching staff best practices, like turning off unneeded equipment, shutting refrigerator doors immediately, and conserving water, can have a major impact on energy savings.
Monitors
An energy management plan which monitors consumption and allows for setting reduction goals could improve efficiency. Restaurants can help by giving their employees incentives through gifts and contests to encourage energy-saving practices.
10. Smart Energy Management Systems
Implementing intelligent energy management systems lets restaurants track and control energy usage in real time. These systems provide an analysis of the highest consumption periods, identify areas of waste, and implement automatic energy saving changes. Smart thermostats, for example, change HVAC settings and the occupancy of the area, and kitchen appliances can also turn on or off depending on requirement.
Platforms
Moreover, cloud-based platforms can provide monitoring of energy performance in multiple restaurants, identifying the locations or parts where improvement is possible. Having such technology integrated can greatly improve cost efficiency and sustainability.
How We Can Help
Aemaco focuses on best practices in energy management to create solutions for restaurants. We assist businesses in decreasing costs while improving sustainability through energy audits, smart monitoring systems, HVAC solutions, and even equipment recommendations. Partner with us today to achieve an eco-friendly and energy efficient restaurant business. Call now!