How Electrical Load Needs Vary by Business Activity: F&B, Clinics, Light Industrial, Retail and Cold Storage

Because the equipment and the regulatory obligations behind different activities diverge sharply, even between units of identical floor area. A shop, a café, a clinic and a cold store in the same shell are four different electrical projects. Treating "commercial premises" as one load category is among the more expensive assumptions an investor or occupier can make, because it is usually discovered during fit-out — after the lease is signed and the contractor is mobilised.

Not for total connected load. The one place current Dubai regulation differentiates electrical figures by building type is the interior lighting power density table in the Dubai Building Code.

Before the numbers, the provenance — because this is where most published Dubai load benchmarks go wrong. Dubai Municipality's Green Building Regulations & Specifications are the document usually cited for these figures, and they are no longer the operative instrument. Dubai Municipality's own Al Sa'fat page states that "Starting from 19 October 2020, Al Sa'fat – Dubai Green Building System will replace Dubai Green Building Regulations and Specifications", and Administrative Resolution No. (154) of 2020 repealed the two resolutions the old regulations sat on. Al Sa'fat, now in its 2nd Edition of January 2023, sets no lighting figures of its own: clause 502.04 provides that for new buildings the average interior lighting power density "must not exceed the values given in Dubai Building Code Section H (H.7.2 Lighting Power densities - interior)". The live numbers therefore sit in the Dubai Building Code, and they are materially lower than the superseded ones still circulating in fit-out advice.

Section H.7.2 requires lighting power density to be calculated by either the building area method or the space-by-space method of ASHRAE 90.1:2019. Where the building area method is used, the ceilings are:

Read that table carefully and it makes the point of this whole guide. Restaurants are allowed less lighting load per square metre than shops. Lighting is the one part of the picture the code bounds, and it is bounded tightly — everything that actually separates an F&B unit from a shop sits outside it and must be engineered from the equipment schedule. Occupancies not listed default to ASHRAE 90.1 values or an equivalent as approved by the Authority.

Two qualifications matter for how you use this table. First, it is expressly an average "across total building area", so it describes a whole building, not a unit inside one — the tenancy-level route is the space-by-space method. Second, the Dubai Building Code applies widely: Article 3 of Decree No. (45) of 2021 provides that it applies to building designs permitted after the Decree's effective date "throughout the Emirate, including in Special Development Zones and free zones, such as the Dubai International Financial Centre." A free zone address does not put a fit-out outside it.

No. The full 135-page text of DEWA's Regulations for Electrical Installations, 2017 Edition, contains no activity-based or per-square-metre connected-load assumption for commercial premises. At section 12.2.2 it reproduces the interior lighting power density table as it stood under the Green Building Regulations — the pre-2020 figures, not the Dubai Building Code figures set out above — and then stops. Where the two differ, the Building Code is the current instrument. The text relied on here is DEWA's own published document rather than a third-party summary of it.

What the Regulations publish instead is method, and it is more useful than a benchmark once you know how to read it:

• An assumed load per point. For general-purpose utility socket-outlets, section 4.7.1 permits an assumed load of 1,000 watts per socket-outlet in commercial and industrial premises, against 500 watts per socket-outlet in residential premises. Twin socket-outlets count as two separate points.
• Actual load for equipment. For stationary appliances and equipment including air conditioners, the actual load of each item is taken as the connected load. This is the clause that makes a real equipment schedule unavoidable, and it is where the difference between a shop and a kitchen finally lands.
• Declared spare capacity. For multi-consumer installations including shops, showrooms, garages and workshops, where provision for connection of additional load may be required, the assumed connected load of each spare circuit must also be shown in the load distribution schedules submitted for DEWA's approval.

Section 4.7.2 sets ceilings on maximum demand — but by supply size, not by activity. DEWA offers the following "for guidance" for normal residential and commercial premises without large motor loads:

Add motors and those ceilings fall. Where individual motor or compressor load does not exceed 100 kW, DEWA transformers supplying motor or air-conditioning loads are normally limited to 950 kW of connected load on a 1,500 kVA transformer and 650 kW on a 1,000 kVA transformer. That is the closest the document comes to an activity-sensitive figure, and it lands hardest on exactly the occupiers this guide is about: cold stores, commercial kitchens and workshops all run compressor and motor loads.

Section 4.7.2 then states the principle plainly. All distribution boards are rated for total connected load before a demand factor is applied, and an appropriate demand factor, worked out by a suitably qualified electrical engineer, determines the maximum demand. Because maximum demand varies with project type — DEWA names residential, commercial and industrial — other design methods are permitted, provided the method and the proposed diversity at each distribution level are submitted with the drawings. Dubai's regulator has left the activity question to your engineer rather than answering it with a table, and no benchmark you find online substitutes for that submission.

One caveat on the edition, and one reason it matters less than it looks. The DEWA document relied on here carries "2017 EDITION" on its title page and in its page footers, and it is the most recent edition of the Regulations DEWA is known to have published. Whether a newer edition has since been issued is not settled by the published record. Copies do circulate on document-sharing sites under 2025 titles, but the listing text describes the document as replacing the 1997 edition, which is what the 2017 edition itself does; a listing title is not evidence of a newer release, and none of those uploads is treated as a source here.

What removes most of the risk is that the Dubai Building Code, 2021 Edition, independently reproduces every DEWA limit this guide relies on — the assumed socket-outlet loads at G.4.16, the maximum demand ceilings at Tables G.15 and G.16, the motor-starting multipliers at Table G.22, the 11 kV feeder limit at G.7.1 and the 400 kW substation trigger at G.4.3 — with the same values. The figures below were re-confirmed against that Building Code text on 17 August 2026. Even so, have a DEWA-enrolled consultant confirm the current edition and clause numbers before you rely on any figure here for a decision with money attached.

Cooking, refrigeration and the extraction system that regulation builds around them. Dubai Municipality's Food Code provides that food establishments should have adequate mechanical or mixed-mode ventilation, designed so that systems are sufficient in number and capacity to prevent grease or condensation collecting on walls and ceilings, with removable grease-extracting filters, hood and duct components that prevent grease dripping onto food or surfaces, and make-up air systems installed to Public Health and Safety Department requirements. Airflow should run from the clean area to the contaminated area. Grease traps should, whenever possible, sit outside the premises.

Each of those is a mechanical requirement with an electrical consequence — extract fans, make-up air handling, and the additional cooling needed to offset a kitchen. The permitting system recognises the difference too: in DDA-administered buildings, the fit-out permit drawing schedule requires HVAC drawings covering fresh air and ventilation layouts and extract fan locations for food and beverage units only, while drainage floor plans are required for all retail. Choosing an F&B activity therefore changes your drawing pack, not just your distribution board. How that activity choice propagates through licensing is covered in How Business Activity Selection Dictates Your Licence, Approvals and Premises.

The extract hood is a suppression system, not just a fan

The September 2018 edition of the UAE Fire and Life Safety Code of Practice makes this explicit, and its requirements land on the electrical design rather than only the mechanical one. Table 9.31 requires an automatic wet chemical system for commercial kitchens having three or more burners, with grease filters installed for the hood. Table 8.15 requires a fusible link heat detection and alarm system for the kitchen hood, and accepts pre-engineered systems. Table 9.14 then sets out how the system has to behave: each protected cooking appliance, individual hood and branch exhaust duct directly connected to the hood must be protected by a single system or by systems designed for simultaneous operation; at least one fusible link or heat detector must be installed within each exhaust duct opening and cooking appliance; the detection must be interfaced with the main fire detection and alarm system; there must be both automatic and manual actuation, with the manual device in a path of egress between 1,067 mm and 1,200 mm above the floor; and maximum discharge time must not exceed 30 seconds. The whole assembly, with its manufacturer's design, installation and maintenance manual, must be listed and approved by Civil Defence.

The clause with the biggest electrical consequence is the shut-off. On activation, all sources of fuel and electric power that produce heat to equipment protected by the system must be shut down, gas appliances not requiring protection but located under the same ventilation equipment must also be shut off, and the shut-off devices must require manual resetting before fuel or power is restored. The code does not prescribe the mechanism, but it is usually delivered with shunt-trip breakers and interlocks designed into the kitchen distribution board from the outset — a coordination item between the electrical contractor and the suppression specialist, not something retrofitted after the board is built.

One planning limit from the same code belongs in a premises decision rather than a fit-out one: in a building that is not sprinkler protected, the kitchen compartment floor area must not exceed 150 m². That is a hard ceiling which can decide whether a unit suits a given F&B concept before any load question is reached, and whether the base building is sprinklered is therefore worth establishing at viewing stage. The edition caveat set out in the cold storage section below applies to this clause reference as well.

A four-tier power architecture, engineered before any physical work begins. DHA's Health Facility Guidelines define a Primary Power Supply from DEWA, a Secondary Power Supply from on-site diesel generator sets, a Tertiary Power Supply from static double-conversion UPS, and Isolated Power Supplies for critical medical locations. The secondary supply must be available to its associated loads within 15 seconds of a primary supply interruption. Requirements then scale with clinical risk grade:

The guidelines also set fuel storage expectations — 24 hours at 70% average loading recommended for facilities with inpatient and critical-care functions, reduced to four hours for outpatient clinics, with no more than 2,400 litres of diesel stored inside the generator room. Imaging equipment gets its own demand-load rule: feeders serving one imaging unit are sized on 50% of its short-time peak rating or 100% of its continuous rating, whichever is higher. Total harmonic distortion must be held below 5%, and power factor correction must meet DEWA's requirement.

Circuit segregation is the line item tenants most often under-budget. Socket outlets intended for highly sensitive medical equipment, such as automated medication cabinets, must be provided with dedicated circuits; isolated power supply sockets must be double pole unswitched with a blue face plate engraved "For Medical Equipment Only"; and lighting circuits must not be connected to isolated power supply circuits. A clinic fit-out therefore carries more final circuits, more distribution board ways and more labelling discipline than an office of the same area — a direct and forecastable cost consequence, not a design nicety. DHA also tells designers to convey the facility's level of care to DEWA when requesting a supply allocation, so redundancy is considered at intake. This design review sits inside the wider approval chain described in External Government Approvals for Dubai Business Licences.

The generator is a second approval, not just a purchase. Section 4.6.11 of DEWA's Regulations permits the installation and connection of standby generators in a consumer's installation only with prior approval from DEWA. The change-over circuit breaker or isolator must have four poles on a three-phase supply so that the phases and neutral of the two systems stay separate and distinct; adequate mechanical and electrical interlocking is required between the incomer breakers of the generator and the DEWA supply so that there is no possibility of paralleling the two under any circumstances; and full equipment details, circuit and wiring diagrams and details of essential loads must be submitted to DEWA for approval before works commence. Any activity that needs backup power — a clinic under DHA's rules, or a cold store protecting stock — carries that submission as well as the capital cost.

No — the difference is continuity, not magnitude. A dry warehouse that loses power loses trading hours. A cold store that loses power loses stock. Dubai Municipality's Food Code sets the temperature obligations that make this concrete: high-risk food should be kept at or below 5°C or at or above 60°C, with 5°C to 60°C defined as the temperature danger zone, and a temperature of −18°C or less preferred to maintain frozen food quality. Section 8.10 recommends food establishments develop a power outage plan before the need arises, states that high-risk and perishable food subject to more than 5°C for over two hours should be discarded, and says frozen food should be discarded or used immediately where there are signs of thawing.

That reframes generator provision for a cold store from a nice-to-have into an inventory insurance decision. Two further Food Code points shape the fit-out: the code warns that refrigeration condensers sited in dry food storage areas produce heat that can damage stored goods, and it provides that utility lines including electrical lines and cooling ducts should be suspended away from work areas or areas of open food, insulated where appropriate to prevent condensation, and easily cleanable. Containment routing is therefore a food-safety matter, not only an electrical one.

It is worth seeing how many regulators converge on this one activity. The Food Code's Part 3 is built on the principle that food safety is best ensured by identifying and controlling hazards as described in the HACCP system adopted by the joint WHO/FAO Codex Alimentarius Commission, and the Food Control Department requires all food establishments to implement a risk-based food safety programme on that basis. So a commercial cold store answers to the Food Control Department for its HACCP-based programme and its temperature obligations, to Civil Defence for separation, panel certification, detection and suppression, to Dubai Municipality's Building Code for metering and electrical design, and to DEWA for supply and any standby generator. That is four review paths against one room, and they are not sequenced for your convenience.

What Civil Defence requires of the cold box itself

Dubai Civil Defence enforces the UAE Fire and Life Safety Code of Practice, and the edition published at dcd.gov.ae — September 2018, document reference CDGH-OP-25 — treats a cold room as an incidental accessory occupancy that has to be separated from what surrounds it. Table 1.9 requires a cold room larger than 20 m² to have one-hour fire resistance rated separation where an automatic fixed fire protection system is present, and two-hour separation where it is not, with the separation and compartmentation complete with walls, floor and opening protection in non-combustible and approved construction materials, and a one-hour fire rated door.

The insulated panels the box is actually built from are regulated as a product, and this is where fit-out programmes come unstuck. Section 4.9.3 requires sandwich panels to be tested for the intended application — external, internal, roofing or cold storage — and prohibits interchanging them between end applications, and section 4.9.5.2 requires each panel to be marked or labelled with a certification mark from an accredited certification laboratory naming that intended end use. The commercial consequence is procurement rather than physics: a panel data sheet that does not name cold storage as its tested end use is a rejection waiting to happen, and the specification has to be settled with the Civil Defence approved consultant before the order is placed, not after delivery.

Detection and suppression follow the cold rather than the occupancy, and both add load. Table 8.13 requires aspirating air-sampling smoke detection inside freezer and cold room areas, with conventional smoke detection through the office, maintenance and store room areas of the building. Table 9.30 requires dry type sprinklers or a dry preaction system in cold and freezer rooms; rooms of less than 20 m² need not be protected but must be compartmented with fully compliant penetration fire stopping systems, and modular cold rooms exposed to occupied rooms are exempt where the room they sit in has an automatic sprinkler system. An aspirating detection system and a dry preaction installation are small electrical loads individually, but they are loads a generic warehouse allowance will not have accounted for, and they belong on the standby supply rather than the normal one.

The Civil Defence material in this guide carries one limitation worth stating. The clause references above are taken from the September 2018 edition of the UAE Fire and Life Safety Code of Practice as Civil Defence publishes it, read on 16 August 2026, and they were not independently re-checked on 17 August 2026. Clause numbering is exactly the detail that moves between editions, so treat the numbers as pointers to verify rather than as citations to drop into a specification.

On the question of whether September 2018 remains the operative edition, there is good evidence: the Dubai Building Code, 2021 Edition, lists the 2018 UAE Fire and Life Safety Code of Practice at Ref. A.1 as a normative reference, so a current Dubai instrument still points to that edition. Clause numbers nonetheless move between editions and supplements are issued between them. Have a Civil Defence approved consultant or House of Expertise confirm the current edition and clause references before a panel specification is ordered.

Load here is entirely equipment-led, and the code gives you two anchors rather than a load figure. Workshops sit in the same lighting band as retail at 9.8 W/m², and industrial occupancies at 8.9 W/m² — again, lighting only, and again as a whole-building average. The more useful number for an industrial or workshop occupier is the metering threshold. Under section G.4.5.2 of the Dubai Building Code, all buildings with a cooling load of at least 1 MW, or a gross floor area of 1,000 m² or greater, must install additional electrical sub-metering of tariff class accuracy, recording demand and consumption data for each energy-consuming system in the building with a load of 100 kW or greater. Note the thresholds: this is 1,000 m², not the 5,000 m² figure carried by the superseded Green Building Regulations, and it applies to all buildings rather than only new ones — so it catches far more existing stock than the older number suggests. Section G.4.3 adds that where no building tariff meter is present, sub-meters must be installed for each individual tenancy, that these are for demand management and cost allocation only, and that virtual meters using run-hours may not be used as sub-meters. All meters must conform to DEWA specifications and be approved by DEWA. If your process plant crosses that line, you have created an obligation for the building operator as well as a capacity requirement for yourself.

Two further ceilings apply once the plant gets genuinely heavy, and both appear in the Dubai Building Code as well as in DEWA's Regulations. A single unit load demand must not exceed the maximum sustained current of the MV cable or feeder serving it — 175 A, or 3 MW, for an 11 kV feeder cable. And motor starting current is capped by motor rating: Table G.22 permits six times full load current for motors of 600 kW or less, stepping down through four, three and two times to 1.5 times for motors above 2,400 kW and up to 3,000 kW. Note where that table stops. It does not extend the 1.5 multiplier to motors above 3,000 kW; plant in that range falls outside the published bands and has to be settled with DEWA directly. Across all of them, the maximum current per feeder during motor starting — including other running motors and loads — should not exceed 350 A under any circumstances. Motor specification, starting method and characteristics, number of motor starts per day and the operating sequence all have to be submitted for approval at design stage. For a workshop or light industrial occupier, how the plant starts is a permitting question, not only an engineering one.

That approval interface is the licensing point this category most often misses. Where DEWA transformers supply motors and air conditioners whose individual loads exceed 100 kW, the Building Code provides that the maximum total connected load is itself subject to DEWA approval, granted on the equipment's rating, starter type, maximum starting current, number of compressors or motors and stages of operation. An industrial or workshop occupier is therefore not simply buying capacity; the plant schedule is reviewed, and the review sits upstream of the fit-out programme.

DDA's own fit-out service confirms the shape of the paperwork in its areas: a contractor appointment letter from the tenant, a copy of the Ejari registration, an NOC from the building owner, NOCs from relevant authorities, and approved stamped plus proposed drawings, with a Dubai Civil Defence completion certificate needed before the fit-out completion certificate is issued. DDA's list also includes a Fit-Out Permit Request form, required where the application is made through the customer service centre rather than submitted online — a small item, but the one most likely to send a counter visit home empty-handed. The Ejari and premises side of that is covered in Office, Ejari and Signage Requirements for a Dubai Trade Licence, and the free zone versus mainland dimension in Mainland vs Free Zone Licensing in Dubai — noting that under Decree No. (45) of 2021 the Dubai Building Code applies throughout the Emirate, including in Special Development Zones and free zones.

Establish the unit's and the building's documented spare capacity, not the current metered consumption, and test it against an engineered figure for your actual equipment schedule. Where total connected load is high enough, a substation provision is triggered inside your own building. Section G.4.3 of the Dubai Building Code states it plainly: "Where the total connected load (TCL) exceeds 400 kW, provision shall be made within the building or plot for a DEWA substation", with a note that "In some circumstances a DEWA substation might be required for connected loads less than 400 kW." Section 3.1.4 of the 2017 Edition of DEWA's Regulations carries the same rule in near-identical terms. The requirement is confirmed when DEWA issues its No Objection Certificate, which is revalidated at the end of a period DEWA specifies.

Read the qualifiers as carefully as the number. "In general" and "might be required" mean 400 kW is the point at which DEWA takes a decision, not a line that clears you on the low side of it. For an occupier the consequence is floor area and programme: a substation room is space someone has to find within the building or plot, which is how a tenant's equipment schedule turns into a base-building conversation.

The qualifier that matters most to an investor, though, is the unit of measurement. The threshold is written against the total connected load of a building or plot, not of a tenancy — so it is an aggregation test, and it is the reason a multi-tenant asset can be the one that trips it. A building letting to several F&B operators, a cold store alongside a workshop, or a floor of clinics can cross 400 kW at plot level well before any individual occupier looks like a high-load tenant in isolation. For anyone underwriting a multi-let retail, F&B or light-industrial asset, that is the point at which a substation room, its floor area and its programme stop being the tenant's problem and become the asset's. Ask for the building's current aggregate connected load and its headroom, not just the spare capacity at the unit you are letting. The cost slabs and the connection process are set out in DEWA Electrical Load and Connection Requirements.

One correction worth making, because the attribution circulates: this threshold does not come from DEWA's Power Supply Guidelines for Major Projects. That document — Issue February 2016, Revision 2 — deals throughout with master-plan developments: 400/132 kV and 132/11 kV substation planning, plot sizes, cable corridors and lead times. Every "400" in it is 400 kV, not 400 kW, and it sets no connected-load threshold for an individual building or tenancy. That finding is about the February 2016 issue specifically, and it should not be read as a statement about DEWA's current issue: a later DEWA-hosted file named for January 2017 appears in public listings, and its contents are not confirmed here. If a figure is quoted at you from that document, ask for the issue date and the clause number.

Before heads of terms, get answers in writing on four points: the documented spare capacity at unit and building level; who bears the cost of a base-building upgrade versus a tenant-specific one; whether a sub-meter will be required and who installs it; and how long the landlord's own NOC process takes, since it sits upstream of every permit. The full sequence is set out in the Licensing + Premises Due Diligence Checklist, and the cluster overview in the Licensing & Utilities Hub. For context on why occupiers are increasingly taking whatever space is available rather than the best-matched space, see our analysis of what the Dubai office space shortage means for investor returns; for the retail side of the same question, Dubai retail property investment and how to maximise ROI covers how fit-out and tenant mix feed through to income.