AC or DC EV Charging for Your Building in Malaysia?
The short answer
For most Malaysian buildings, a bank of AC wallboxes is the right first install, and DC only earns its place where cars stop for minutes rather than hours. AC chargers are limited by the car's own onboard charger, so a parked car gains roughly 7 kW to 11 kW an hour and leaves full after a work shift or a night. DC chargers do the conversion inside the unit and can fill a car in under an hour, but they draw far more power from your supply, cost considerably more to install, and need enough passing traffic to be worth it. Offices, condos, factories and hotels usually want AC. Highway stops, malls with short dwell times and fleet depots on tight turnarounds are where DC starts to make sense.
AC and DC side by side
The figures below are the technical limits of the two charging methods, not a price quote. Installed cost depends entirely on your building's supply and civil works, which is why we survey a site before quoting.
What it decides | AC wallbox (7–22 kW) | DC fast charger |
Where the conversion happens | Inside the car, by its onboard charger | Inside the charger unit |
Speed limited by | The car, not the charger | The charger and the car's DC limit |
Typical time to fill a car | A work shift or overnight | Well under an hour |
Demand on your supply | Modest; several units can share one supply | High; often the trigger for a supply upgrade |
Best dwell time | 3 hours and up | 15–45 minutes |
Suits | Offices, condos, factories, hotels, workplaces | Highway stops, malls, fleet depots, petrol forecourts |
Units per ringgit of budget | Many bays | Few bays |
If the cars at your site sit still for three hours or more, every ringgit spent on DC speed is speed nobody uses. That single question settles most of these decisions before any quotation is written.
Where AC wallboxes win
Offices and workplaces. Staff park for eight hours. A 7 kW bay returns a full battery long before home time, and load balancing lets you put many bays on the supply you already have. Our employer's guide covers the load balancing option.
Condominiums and strata buildings. Overnight charging is the softest possible load on a building. Private bays, shared bays and revenue-share models all run on AC. How JMB approval actually works.
Factories, warehouses and depots on long shifts. Vehicles that return once a day and sit until morning do not need DC at all.
Hotels and serviced residences. Guests stay the night. Bay ratios and billing models for hotels.
Where DC earns its cost
DC is a traffic business, not a parking business. It pays where drivers arrive, charge and leave, so the same unit serves many cars a day:
Shopping malls and retail where the average visit is under an hour. What mall charging costs and earns.
Petrol forecourts, highway rest stops and roadside sites on main routes.
Fleet depots where a vehicle must be back on the road the same day.
Car parks that want to sell charging as a service rather than offer it as an amenity. Car park and business solutions.
A DC unit sitting idle in a basement where everyone parks all day is the most common and most expensive mistake in commercial EV charging.
The three things that actually decide it
1. Your incoming supply
Every building has a maximum demand already committed to lifts, pumps, chillers and lighting. The question is not what a charger needs, it is what is left over. Where the spare capacity is small, load balancing across several AC bays almost always beats paying for a bigger supply. Where it is nearly nothing, the supply and sometimes the transformer has to be looked at before any charger is chosen. Our installation requirements guide sets out what the installer must do.
2. Single phase or three phase
Most commercial buildings already have three phase, which opens up 11 kW and 22 kW AC units. That is useful for shared bays, where one unit serves more cars in a day. It is worth knowing that many cars sold in Malaysia cannot draw more than 7 kW on AC, so a 22 kW bay does not charge those cars any faster than a 7 kW bay. Which Malaysian EVs actually need three phase.
3. Who pays for the electricity
This decides the billing hardware, not the charger type. If residents, staff or the public pay, you need per-user authentication and metering, which in practice means an OCPP charger with RFID or app billing rather than a plain domestic unit. There is no price cap on EV charging in Malaysia, so the rate you set is yours to decide, and so is the responsibility for setting it fairly. What no price cap means for JMBs and property managers.
Does your choice change the licensing?
The licence question turns on who may use the charger and whether electricity is resold, not on whether the unit is AC or DC. Suruhanjaya Tenaga publishes the criteria and documents required for a licence application below 5 MW, and the Energy Commission has clarified the rules as DC fast chargers have grown. Sources: ST licence application criteria (PDF), Energy Commission clarifies EV charging licence rules (Lowyat.NET), ST on EVCS licence application delays (SoyaCincau). Our own walkthrough is here: Does your building need an EVCS licence?.
If the capital cost is the obstacle, two routes exist that do not involve buying DC hardware outright: tax incentives for qualifying equipment, and revenue-share arrangements where an operator funds the install. GITA for EV chargers, before 31 December 2026 and how the revenue-share model really works.
What people actually ask
These are real questions. The first group is taken verbatim from the searches that bring people to evguru.com.my, over the 90 days to 3 November 2026. The second group is quoted from a public Malaysian forum thread.
"what electrical upgrades does a commercial building need to support ev charging stations?" — 40 impressions, nobody clicking. It is the supply question above, and it comes before the charger choice.
"dc charging for business" — 105 impressions. Most of the people asking this want to know whether they need DC at all. Usually they do not.
"best ev charging solutions for commercial buildings and workplaces" — 58 impressions. Workplaces are the clearest AC case of all.
"commercial ev charger installation" — 85 impressions across four of our own pages, which tells us the answer has been scattered rather than written down. Hence this page.
On wiring and capacity, from a Malaysian forum thread in the Lowyat EV charger discussion: one poster warns installers are "insisting on EV chargers ngam2 the limit", and another that an uncertified job means "many issues". A third asks plainly: "Lv2 EV charger onwards must tukar tu 3 phase."
Those forum worries are about homes, but the engineering is the same in a building: the protection and the cable are sized from the supply and the load, and a commercial install has a competent person sign for it.
What this looks like in hardware
For a building putting in AC bays, two units cover most of what we are asked for. Specifications are as listed on the product pages; ask us for current pricing, which changes.
EO Genius 2 22 kW three-phase, Type 2 socket, OCPP — UK built, OCPP, so it can be managed and billed. This is the one to look at where users pay or where bays are shared.
Guru Swift Advance 7 kW / 22 kW, Type 2 plug — the straightforward choice for staff bays and residents' private bays.
For DC, the specification depends on the site survey rather than a catalogue page. Start here: DC charging solutions for businesses.
See buildings we have already done. Every project on that page started with a survey of the supply, which is the step that decides AC or DC.
Frequently asked questions
Is a DC charger always faster than an AC one?
For the same car, yes, but only up to that car's DC limit. The useful comparison is not speed, it is speed you can sell or use. A car parked for eight hours gains nothing from a DC charger it occupies for twenty minutes and then blocks for the rest of the day.
Can I start with AC and add DC later?
That is the usual sequence, and it is the sensible one. The constraint is the supply: ask the installer to size the incoming arrangement and the containment for the DC unit you might add, even if you do not install it yet. Retrofitting the cable route costs far more than allowing for it.
How many AC bays can my building take?
It depends on spare capacity at your maximum demand, and on whether the chargers can share it. With load balancing, a building can usually run several times more bays than a naive calculation suggests, because cars rarely all charge at full power at once.
Do I need an EVCS licence for chargers in my own car park?
It depends on who can use them and whether you are reselling electricity, not on the charger type. The Energy Commission has clarified the rules and ST publishes the application criteria; both are linked above, and our EVCS licence guide walks through the common cases.
Is 22 kW AC worth paying for over 7 kW?
For a shared bay, often yes, because the unit serves more cars in a day. For a bay used by one car overnight, usually not, since many cars sold here cannot draw more than 7 kW on AC in the first place.
What does a site assessment involve?
We look at the incoming supply and spare capacity, the distribution board and cable routes, where the bays would go, how long cars actually stay, and who will pay for the electricity. That produces a bay count and a charger type rather than a guess.
Next step
Request a free site assessment. Tell us the building type, roughly how long cars stay and whether you have three phase, and we will tell you whether AC or DC fits before anyone talks about price. Message EvGuru on WhatsApp for a site assessment.
