Cutting Energy Costs in a Restaurant Kitchen: A Practical Guide

A commercial kitchen can use more energy in a day than several typical offices combined — extraction running for service hours, gas burners and ovens at full output, walk-in fridges and freezers running around the clock. For most restaurants, utilities are one of the top three costs after food and staff, so small changes compound quickly.

Where the cost actually comes from

Refrigeration and extraction typically run continuously, which means they often cost more over a week than the cooking equipment itself — even though burners feel like the obvious culprit. Understanding this split matters, because it points at where efficiency actually pays off. A typical mid-size kitchen might see refrigeration and extraction account for close to half of total energy spend, with cooking equipment, hot water and lighting making up the rest.

Practical changes that make a real difference

• Check extraction fans are only running at full speed during service, not idling all day on a manual switch left on overnight — a demand-controlled or two-speed extraction setup can cut this cost noticeably
• Keep fridge and freezer door seals in good condition — a worn seal can add a significant amount to a compressor’s daily runtime, and it’s a cheap fix compared to the ongoing cost of ignoring it
• Group cooking to reduce the number of separate burner and oven start-ups during a shift, since bringing equipment back up to temperature repeatedly is less efficient than a steady service run
• Check walk-in fridge and freezer temperatures aren’t set colder than necessary — every degree below the recommended range adds to the compressor’s workload for no food safety benefit
• Check your gas and electricity are on a rate that reflects your actual usage pattern, not a generic small-business default your supplier applied when the account was opened

The tariff side matters as much as behaviour

Kitchens with heavy, predictable daily usage are often good candidates for half-hourly metering, which can unlock better rates than a standard meter by giving suppliers a clearer picture of your actual demand pattern. It’s also worth checking whether your gas and electricity contracts have quietly rolled onto an out-of-contract rate — this is one of the most common and most expensive mistakes we see in hospitality, and it’s completely silent until someone checks the bill against current market rates.

Don’t overlook water

Commercial dishwashers and pre-rinse spray taps mean kitchens are also strong candidates for a business water comparison — most kitchen operators have never checked whether they’re on a competitive water retail tariff, simply because it’s the utility nobody thinks to compare.

Get your kitchen’s rates checked

Send us a recent gas and electricity bill and we’ll tell you whether your current rate is competitive, with no cost or obligation. It only takes a couple of days to get an answer, and if a switch makes sense we handle the paperwork so it doesn’t interrupt a single service.