Electrical for restaurants and commercial kitchens in Calgary

CCT 01How a restaurant buys electrical work

The buyer is usually the operator, a tenant with a lease, a fixturing period and an opening date that rent depends on. The landlord controls the base building: the main service, the switchboard, the tenant’s meter position and the route to the roof. Between them sit the kitchen equipment dealer or kitchen designer, the mechanical contractor for the hood and make-up air unit, the fire suppression contractor, a general contractor and the electrical contractor. On a franchise, the brand’s design standards add another reviewer.

The lease work letter decides who pays for what. Read it for the service size delivered to the premises, whether the landlord or tenant supplies the tenant panel, who pays for a meter change, and what must be restored when the lease ends. A letter that promises "electrical service to the premises" without a rating, voltage or phase leaves the most expensive question unanswered.

Converting a retail or office bay into a restaurant is a change of use. Planning approval comes first: the City will not issue the building permit for commercial space until the development permit is in place ¹. A permitted change of use costs $190 and takes about 5 business days, while a discretionary one costs $624 and takes 10 to 12 weeks ¹. That clock runs before any electrical permit can be useful, so a lease signed on the assumption of a quick opening should say which route applies.

CCT 02The loads that decide the scope

Square footage says little about a restaurant’s electrical load. A café with a gas range and a coffee machine and a bakery running electric deck ovens can occupy identical bays and need very different services. Start with the equipment schedule and read every nameplate: voltage, phase, full-load amps or kW, and whether the unit needs a dedicated circuit, a receptacle or a direct connection.

• Cooking line: fryers, griddles, ranges, combi and convection ovens, pizza and deck ovens, induction units and holding cabinets. The gas-or-electric decision for this line moves the load more than anything else in the kitchen.
• Warewashing and hot water: dishwashers, particularly those with booster heaters, and any electric water heating.
• Refrigeration: walk-in cooler and freezer condensing units and evaporators, reach-ins, ice machines and bar coolers. These run around the clock and are the loads an owner least wants interrupted.
• Ventilation: hood exhaust fans, the make-up air unit and its controls.
• Front of house: lighting and dimming, point-of-sale, music, patio heaters and signs.

Equipment must match the building’s supply. Commercial cooking equipment is sold for several voltages, and a heating appliance rated for 240 V produces noticeably less heat on a 208 V supply. Order to the voltage and phase the unit actually has, which the designer should confirm on site before the kitchen dealer finalizes the order. The 120/208 V versus 347/600 V distinction is explained in the Canadian commercial voltages guide.

The designer calculates service and feeder loads under Section 8 of the Canadian Electrical Code, where demand factors apply. The operator’s "everything on at once" figure and the code calculation are rarely the same, and the difference matters to the landlord’s spare capacity. The load also shapes the utility bill. ENMAX’s small commercial rate covers sites using less than 5,000 kWh per month ²; above that, demand is billed in kVA and the ratchet holds billing demand at up to 90% of the year’s highest reading ². A single Saturday with every oven, fryer and heater on together can set demand charges for twelve months.

CCT 03Hoods, make-up air and suppression interlocks

The kitchen hood is where three trades meet, and it is the most common source of gaps between bids. The hood manufacturer supplies a control panel. The mechanical contractor installs the exhaust fan and make-up air unit. The suppression contractor installs the wet-chemical system, whose release must shut off fuel and electrical power to the cooking appliances under the hood. The electrical contractor wires the fans, the control interlocks and the means of de-energizing the cooking line, usually shunt-trip breakers or contactors, to the suppression and hood suppliers’ requirements.

Put each connection in writing before pricing: who supplies the shunt-trip breakers or contactor panel, who mounts the hood control panel, who runs the control wiring from the suppression micro-switches, and who attends the joint function test. If the building has a fire alarm system, the suppression release is normally monitored by it, and fire alarm alterations in Calgary need both a building permit and an electrical permit ³.

Make-up air is a Calgary-specific load. The unit must temper outdoor air in a city whose January 2.5% design temperature is -30 °C ⁴. A gas-fired unit still needs power for fans, burners and controls; an electrically heated unit is a large load that can change the service decision on its own. Confirm the heating source with the mechanical designer before the electrical design is priced.

CCT 04Three-phase supply and the landlord’s service

Multi-tenant retail buildings typically feed each bay from the landlord’s main distribution through a tenant meter and panel. Before the lease is final, record the tenant panel’s rating, voltage and phase, the spare breaker spaces, and whether the landlord’s service has room for the kitchen. Three-phase supply at the building does not prove a particular bay has it, and three-phase at a neighbouring restaurant proves nothing about yours.

When the bay falls short, the options are different scopes with different owners. The landlord may enlarge the tenant feeder from existing switchgear. A new or larger tenant service may be needed, and above 200 A ENMAX requires a CT request form and CT meter installation checklist ⁵. Occasionally a new utility service or transformer is involved, which brings ENMAX’s investment and contribution process into the budget. For a stand-alone pad restaurant, note that ENMAX does not confirm capacity when it reviews a circulated development permit ³, so an early utility enquiry is worth more than the DP circulation.

The three-phase power page covers new services and conversions. To convert a nameplate kW rating into amps at 208 V or 600 V, use the three-phase kVA and amps calculator. It shows the arithmetic, not whether a feeder or breaker is suitable.

CCT 05Typical restaurant scopes and where they sit

Restaurant electrical work usually splits into the packages below. Mapping each to a scope keeps the kitchen dealer, the landlord and the contractors from each assuming someone else carries it.

For budgeting, the electrical cost per square foot guide explains why a per-area number hides most of what drives a kitchen’s price. Compare bids by equipment count and scope, not by area.

CCT 06Permits, inspections and the opening date

The sequence runs development permit (for a change of use), then the building permit, then a trade permit pulled by each trade contractor for its own work ¹. Calgary may issue a building permit for a complete minor tenant improvement within 21 calendar days ⁶, and the City describes a typical range of 21 to 49 days for interior renovations ¹. Base-building work and tenant-space work take separate electrical permits ³, so a landlord’s service change and the tenant’s kitchen wiring are inspected as different jobs.

The electrical trade permit costs $112 plus $9.79 per $1,000 of construction value, plus the Safety Codes Council fee ⁷. Construction value is labour and material, including customer-supplied material ⁷. Starting before the permit is issued costs two times the normal fee ⁷.

Whether the drawings need an architect’s or engineer’s stamp is set by Division C of the Alberta building code ¹. Restaurants are an assembly occupancy under the building code, so do not assume the small-building exemptions written for business and mercantile space apply. Signs need their own permits, and a freestanding sign must be fed underground ³⁸.

At the end, the contractor books the final inspection through 311 once every other inspection is signed off; the occupancy permit follows, and the business licence comes after that ⁶. The tenant improvement process guide sets out the lease-to-occupancy sequence in full.

CCT 07Working in a restaurant that stays open

Renovating a trading restaurant is a different job from fitting out an empty bay. Refrigerated inventory, food-safety rules and a service that runs into the evening leave short windows. Agree in writing which circuits can be off and when, how walk-in coolers and freezers are kept running or emptied, and who confirms the kitchen is safe to cook in before staff return.

Tie-ins to a live panel, work on the landlord’s switchboard and any interruption to neighbouring tenants need the landlord’s approval and a planned shutdown. After-hours work carries labour premiums, and utility attendance outside ENMAX’s weekday hours is billed at $352 per hour ⁹. Price the outage plan as part of the scope rather than discovering it in a change order.