Introduction
Running a commercial kitchen means juggling many priorities: food quality, staff, safety, and costs. One area that’s often overlooked but critical is energy use. Commercial kitchens are some of the biggest energy consumers in any commercial space, typically using 5 to 7 times more energy per square meter than other businesses. Without smart choices, energy bills can quickly spiral out of control.
At Kitchen Solutions, we have been supporting kitchens through the ever-evolving landscape of catering technology for over 36 years. We’ve seen one fact hold true: electricity is now your kitchen’s greatest worker. But relying on outdated or poorly optimised equipment is like putting your most powerful employee in handcuffs, wasting thousands in profit each year while driving up heat, discomfort, and even food safety risks in your kitchen.
Energy efficiency in commercial kitchens is no longer just an environmental goal; it’s a critical business strategy. The good news? With upfront, well-planned investments in energy-efficient cooking equipment, often supported by government rebates and incentives, you can cut wasted energy and free your kitchen to perform better than ever before. In a world where food and labour costs keep rising, improving your kitchen’s energy efficiency is a straightforward way to do more for less.
This guide will walk you through the essentials, from choosing the right energy-efficient equipment to optimising your kitchen’s daily operation. We’ll share practical tips, highlight key features, and show you how smart upgrades can deliver real savings and improved performance.
Why Energy Efficiency Matters in Commercial Kitchens
Cost Savings That Add Up
Energy-efficient commercial kitchens use less energy, which means smaller bills, month after month. In many cases, the savings can pay off the cost of new equipment within just a few years.
Smarter Equipment, Smarter Decisions
Connected energy-efficient catering equipment takes efficiency even further. For example, many of the Welbilt brands we supply, including Convotherm, Delfield, and Merrychef, use a platform called KitchenConnect. It collects real-time data on usage and performance, including energy consumption.
This kind of insight can highlight where energy is being wasted, whether an oven is due for maintenance, nearing the end of its life, or simply being used inefficiently. With data, you don’t have to guess; you act.
And as mentioned earlier, refrigeration is one of the biggest energy drains in a commercial kitchen. Poorly maintained units can use nearly twice as much power as necessary. Real-time monitoring gives you the visibility to catch problems before they cost you.
Better for the Environment
Cutting energy use lowers your carbon footprint. That’s good for sustainability targets and for meeting growing customer and stakeholder expectations around responsible operations.
Stay Compliant and Get Rewarded
Energy-efficient catering equipment also helps you stay ahead of legislation and unlock access to local rebates, grants, or tax incentives. It’s a practical way to future-proof your kitchen.
Choosing Energy-Efficient Cooking Equipment
How Equipment Choice Impacts Energy Use
The equipment you install can make or break your kitchen’s energy profile. Upgrading to modern, energy-efficient commercial kitchen appliances delivers real savings in running costs and boosts kitchen performance.
Refrigeration Units
Start with fridges; they should be your first replacement priority. UK kitchens typically need fridges with a climate class of 3, 4, or 5. This classification ensures the fridge can efficiently and safely reach operating temperatures in your kitchen’s ambient environment.
Look for an energy efficiency rating of at least B or C; these already outperform many older models. Size matters: your fridge needs to be large enough to avoid overfilling, leaving room for airflow around fans, which helps to maintain refrigerator energy efficiency. Place it in a well-ventilated area supported by your existing room ventilation no point paying to cool a hot spot.
Check fridge door gaskets and seals regularly to maintain airtightness. Keep vents clean and free from obstructions.
Ovens & Ranges
Modern ovens come with programmable settings and intelligent cooking functions. These allow you to hit perfect temperatures and cooking times for multiple items, optimising energy use and reducing wasted heat. Proper loading instructions ensure you make the most of each batch, cutting cooking time and the number of appliances needed.
Look for models with high-quality insulation, which focuses heat on your food, not the kitchen. Some ovens have a “hold” mode to keep food at serving temperature without using excess energy, or they can automatically turn off when cooking is done for a fully automated, low-cost operation.
High-speed ovens cook food up to 20 times faster by using advanced technologies to transfer energy directly to the product, with minimal waste. For example, a pizza that takes 18–20 minutes in a conventional oven can be ready in just 2 minutes.
Combi ovens are ideal for larger batch cooking, handling 4–5 portions or more efficiently. They combine steam and convection heat, staying hot with minimal heat loss when doors open less often. Combi ovens save time and energy, especially when cooking multiple trays, like 10 trays of chicken on a programmed cycle.
Convection ovens rank third in efficiency and are best used where their speed and style match your cooking needs.
Gas cookers remain common but are generally less energy-efficient than electric induction options.
Dishwashers & Glasswashers
Choose models with low energy and water-saving technology. Good insulation and smaller wash tanks reduce the amount of hot water used. Models with heat recovery systems capture steam to preheat rinse water, cutting energy use by up to 25%.
Hobs
All hobs should be induction. Induction hobs heat quickly and efficiently, transferring energy directly to the pan with very little wasted heat.
Ventilation & Exhaust Systems
Smart ventilation systems and hoods adjust their operation based on kitchen heat and smoke levels, cutting energy use significantly. Demand-controlled ventilation keeps air fresh without running full throttle constantly.
Smaller Appliances & Lighting
Switch to LED lighting and unplug appliances when not in use to save energy across the board.
Optimising Energy Usage in the Kitchen
Energy efficiency in your kitchen doesn’t always mean expensive new equipment. In many cases, significant savings come from smart maintenance, good habits, and small operational tweaks.
Regular Maintenance Is Key
Keeping your equipment clean and well-serviced is the easiest way to improve efficiency and avoid costly breakdowns. For example, refrigeration condensers with dusty coils can face four times more resistance, so cleaning them at least four times a year makes a big difference. Similarly, regularly checking and cleaning fridge door gaskets and seals ensures proper temperature control and cuts wasted energy.
A study from Mitchells and Butlers pubs found refrigeration accounts for 43% of kitchen energy use, and half their fridges and freezers had faults. Many had incorrect digital temperature readings, either too cold (wasting energy) or too warm (risking food safety). After proper maintenance, some sites cut their energy use by up to 45%, saving nearly £2,000 a year. Since fridges run 24/7, getting this right is crucial.
Ventilation and Airflow Matter
Make sure fridge vents and kitchen ventilation are always free and clean. Blocked vents and overloaded fridges restrict airflow, causing equipment to work harder and waste energy. Proper ventilation throughout the kitchen helps keep appliance temperatures down, reducing electrical resistance and energy efficiency in commercial kitchens.
Energy-Smart Cooking Habits
Use equipment settings wisely. Only preheat ovens when necessary, batch cook to maximise output, and avoid leaving equipment on longer than needed. Combi ovens with quick start-up and fast heat-up times are perfect for this, saving energy without sacrificing performance.
Smart Kitchen Layout
A well-planned kitchen layout can reduce energy waste. For example, using drawer fridges near prep areas means less frequent trips to large cold rooms, reducing the time doors stay open and cutting heat gain.
Staff Training and Awareness
Everyone using the kitchen should understand why energy efficiency matters and how to help. Training can cover simple actions like turning off unused appliances and following best practices for cooking and cleaning.
Automation and Smart Tech
Consider investing in smart kitchen technology that monitors and adjusts energy use automatically, making it easier to maintain efficiency day-to-day without extra effort.
At Kitchen Solutions, we provide training on all equipment sold and offer specialist advice tailored to your kitchen’s unique needs. Our experts can help you identify quick wins and long-term solutions to optimise energy use and keep your kitchen running reliably.
Case Study: North Birmingham Secondary School Kitchen Upgrade
Kitchen Solutions recently designed and installed a new energy-efficient kitchen for a large secondary school in north Birmingham, serving 900 pupils daily as part of a school extension project.
The upgrade included three Rational iCombi ovens, one Lincat Opus induction range, and two Lincat Opus fryers. We also installed a demand-based ventilation system, with fans that automatically adjust to kitchen temperatures, alongside energy-efficient refrigeration.
This replaced an outdated 20-year-old kitchen that featured three 6-burner cookers, an atmospheric steamer, a two-tier convection oven, and two twin pan fryers.
The results speak for themselves: in the first six months, the school cut energy costs by 20%. Over four years, the investment paid off not only through energy savings but also reduced staff costs, lower food wastage, and less water use, delivering a strong, measurable return on investment.
Conclusion & Next Steps
Energy efficiency is a win-win, cutting costs while supporting sustainability. Start by auditing your current setup: what equipment runs longest, and where are the biggest energy drains? Look for rebates or grants to help fund upgrades.
If you’re ready to explore energy-efficient commercial kitchen equipment or want tailored advice on improving your kitchen’s performance, get in touch with us. We’ll help you find the right solutions to keep your kitchen running smoothly and your energy bills down.
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