How to Reduce Energy Costs in a Commercial Kitchen in South Africa

Energy costs are one of the biggest operational pressures facing restaurants, cafés and catering businesses in South Africa.

Between rising electricity tariffs, load shedding strain and increasing gas prices, commercial kitchens are under constant pressure to produce more while spending less.

The good news? Most kitchens waste far more energy than they realise.

1. Upgrade Inefficient Equipment

Old equipment consumes significantly more power than modern, energy-optimised units.

Common culprits:

• Outdated convection ovens

• Refrigeration with failing door seals

• Fryers without thermostat accuracy

• Undersized extraction systems working overtime

Newer commercial ovens and refrigeration systems are built with improved insulation, better airflow design and more precise temperature control.

Upgrading one major appliance can reduce energy usage more than cutting staff shifts or shortening service hours.

2. Right-Size Your Equipment

Bigger is not always better.

If your café runs 80 covers per day, a 20-tray combi oven may be burning electricity unnecessarily.

Similarly, oversized fridges that are half empty cycle inefficiently.

Right-sizing ensures:

• Shorter preheat times

• Reduced idle energy

• Lower overall operating costs

Many kitchens over invest in capacity “just in case” instead of planning around realistic demand with room for scalable upgrades.

3. Maintain Refrigeration Properly

Refrigeration runs 24/7. Small inefficiencies become large expenses.

Check regularly:

• Door seals

• Condenser coils

• Thermostat calibration

• Ice buildup

A worn gasket alone can increase energy consumption by 15 percent or more.

Preventative maintenance is cheaper than replacing compressors.

4. Control Preheat and Idle Time

Many restaurants preheat ovens hours before service begins.

Unless required for production, this wastes energy.

Best practice:

• Preheat based on prep schedule

• Switch off unused deck levels

• Avoid leaving fryers idling between rush periods

• Use programmable timers on combi ovens

Smart scheduling often saves more than equipment replacement.

5. Switch to LED and Efficient Extraction

Kitchen lighting and extraction fans consume more power than most operators realise.

Upgrading to LED lighting:

• Reduces heat output

• Lowers cooling demand

• Cuts electricity usage

Modern extraction systems with variable speed controls adjust based on heat load instead of running at full power continuously.

6. Train Staff on Energy Discipline

Even the best equipment fails if staff misuse it.

Common habits that waste energy:

• Leaving fridge doors open

• Overloading ovens

• Running half-empty dishwashers

• Ignoring temperature calibration

Operational discipline directly affects profit margins.

Energy efficiency is not just an equipment decision. It is a management decision.

7. Consider Gas vs Electric Strategy

In some regions of South Africa, gas remains more cost-effective for high-heat appliances.

Gas fryers and ovens:

• Heat faster

• Recover temperature quicker

• Often reduce peak electricity load

Hybrid kitchens using both gas and electric equipment can balance operational costs strategically.

The Financial Impact of Energy Waste

If your kitchen spends R25,000 per month on electricity and gas, a 10 percent reduction equals:

R2,500 saved monthly

R30,000 annually

That could fund:

• New refrigeration

• Preventative maintenance contracts

• Equipment upgrades

• Staff training

Operational efficiency compounds over time.

Energy efficiency in a commercial kitchen is not about cutting production.

It is about:

• Smarter equipment selection

• Proper sizing

• Preventative maintenance

• Operational discipline

If you want a practical assessment of your current setup, Alpaco can assist with:

• Equipment recommendations

• Upgrade planning

• Replacement units

• New kitchen builds

Whether you operate a single café or a multi-site restaurant group, structured equipment planning reduces long-term operating costs.