Start with the equipment schedule, not the wall plugs
Power planning begins with a full equipment schedule. List every appliance by type, quantity, voltage, amperage, and whether it runs all day or only at peak service. Cooking gear, cold storage and prep equipment do not all behave the same, so they should never be treated as one simple total load.
In a restaurant kitchen, the highest draw often comes from ovens, griddles, hobs, dishwashers and water heating. In a hospital or canteen, refrigeration and holding equipment may run longer than the cookline. That means the electrician, the kitchen designer and the client need the same information from the start, otherwise the switchboard ends up undersized and the kitchen gets nuisance trips when service starts.
- Record each item’s voltage and current draw
- Mark what runs continuously and what runs in short bursts
- Separate cooking, refrigeration and prep circuits where possible
- Allow for future additions, not only the opening day list
A common mistake is to count plugs instead of loads. Ten socket outlets do not tell you much if two are feeding chillers and one is carrying a hot cupboard. Proper sizing keeps the kitchen operating safely and saves costly rework later on.
Cooking equipment needs peak-load thinking
Cooking equipment usually creates the heaviest spikes. A combination oven, fryer bank, griddle and extraction system can place a serious demand on the supply, especially if several items heat up at the same time. If the incoming supply is too small, the kitchen may still switch on, but it will struggle when everything is used together during lunch or supper service.
For smaller sites in Durban North or Pinetown, load balancing can make a big difference. Not every piece of equipment must be on the same circuit. Where practical, heavy items are spread across phases so the kitchen does not pull from one line all at once. This also helps with maintenance later because faults are easier to isolate. It is not fancy work, just sensible planning.
- Stagger start-up times for high draw appliances
- Place heavy cookline items on dedicated circuits
- Keep extraction and make-up air on the same plan as the cookline
- Check motor starting load on fans and pumps
When cooking equipment is being selected, the layout and the power plan should be checked together. A fryer moved three metres on paper can mean a different cable route, a different isolator position and a different installer’s day on site.
Refrigeration must stay stable through outages
Cold storage deserves special attention because it cannot simply be switched off and on again. Fridges, freezers, undercounter units and cold rooms need a stable supply and enough backup time for local outages. In coastal areas like Durban and Ballito, humidity adds another layer of strain, so refrigeration plant needs good ventilation and regular coil cleaning to stay efficient.
Power planning for refrigeration should include running load, starting load and recovery time after a power interruption. If the site uses standby power, the cold room may have to come back on before the cookline. That means the backup system must be checked against the real operating sequence, not just a general estimate. It is a small detail, but it matters when stock is on the line.
- Allow for compressor start-up current
- Keep condenser space clear for airflow
- Plan backup supply for critical storage first
- Use surge protection where voltage swings are common
Hospitals and canteens often keep stock for longer periods, so the refrigeration plan should also include alarm monitoring and clear labeling at the distribution board. Staff must know what to leave running during an outage and what can wait until normal supply returns.
Prep areas still need proper power, even if the load looks small
Prep equipment is often overlooked because the individual machines seem light compared with cooking gear. Yet a kitchen filled with slicers, mixers, blenders, vacuum sealers, ice machines and hand wash units can still place a decent demand on the supply. When these are spread across prep rooms, wash-up areas and service counters, the wiring layout needs to keep up.
Prep areas also need reliable power for task lighting, charging points for mobile devices used in stock control, and backup support for ticket printers or point-of-sale terminals in some sites. A poor plan can leave the prep team with too few outlets in the wrong places, which leads to extension leads and unsafe clutter. That is never a good look in a commercial kitchen.
- Group light duty appliances sensibly
- Keep sockets out of splash zones and traffic paths
- Provide enough outlets for cleaning and prep equipment
- Allow for future workflow changes as the kitchen grows
If a site is being fitted out in Pietermaritzburg or Umhlanga, the prep zone should be checked against the actual operating pattern. A catering kitchen serving schools in the morning and events at night may need flexible power points in several areas, not only one fixed bench.
Backup power is planning, not panic
Many operators only think about generators or inverter systems after the first outage, but good power planning includes backup from day one. The question is not only whether the kitchen can survive an outage, but which functions must continue and for how long. In a busy Durban kitchen, that may mean refrigeration, a limited cookline, lighting and the till system before anything else.
Backup systems should be sized around essential loads, not the whole building if that is unrealistic. If the standby supply is too small, it may fail under pressure. If it is too large, the capital cost and running cost become unnecessary. A practical balance is better, especially for businesses that need to manage budgets carefully.
- Set a priority list for critical loads
- Test changeover times before opening
- Confirm fuel, battery or generator maintenance access
- Keep a written shutdown and restart procedure
Staff training matters here as well. A well planned backup system can still be misused if the team does not know which switches to leave on or off during load-shedding. Clear labels and simple instructions save time and reduce stress.
A Durban example: getting a canteen ready for daily service
Consider a staff canteen being fitted out in Glen Anil, serving 180 meals a day and working through peak lunch periods. The equipment list includes a hot line, a refrigeration wall, a prep bench with mixers, a dishwasher and a small cold room. The first check is the available supply from the building. If the supply is tight, the design may need phased use of equipment, circuit balancing, or a revised selection of appliances so the kitchen can operate without constant trips.
On a project like this, the layout team, electrician and installation crew should work from the same drawing set. The isolators, cable routes, refrigeration points and extraction controls must all land in the right place. That saves time on site and reduces the chance of expensive changes after the walls are finished. It also makes maintenance simpler, which is important for sites that run long hours and cannot afford stoppages.
For coastal Durban conditions, the final check should include ventilation around compressors and good access for service. Power planning is not only about numbers on a page, it is about how the kitchen behaves on a hot Friday, during a summer storm, or when the municipal supply drops without warning. If the plan is right, the kitchen keeps working when it matters most.
