EV Charger Installation in Singapore: A Homeowner's Guide
LTA registration, the new SS 722 standard, choosing between 7.4–22 kW, what drives the cost, and how a landed-home install actually works.
Charging an electric car at home is the cheapest, most convenient way to keep it running — but a charger is a permanent, high-current electrical installation, not a plug-in appliance. In Singapore it must be installed to the SS 722 standard, registered with LTA, and signed off by a Licensed Electrical Worker. Here is what that means for your home, and how to choose the right charger.
How home EV charging works
Home chargers deliver AC power that your car's onboard charger converts to fill the battery. They typically run from 7.4 kW (single-phase) up to 22 kW (three-phase). Overnight that is more than enough — even a 7.4 kW unit adds roughly 40 km of range per hour, so a few hours covers most daily driving.
You can fit a brand-specific wall connector for a single make of car, or a universal Type 2 charger that works with any EV. If your household might add a second, different EV later, a universal unit keeps your options open.
7.4 kW, 11 kW or 22 kW — which do you need?
Bigger is not always better. The right size depends on three things: your car's onboard AC charger limit, how far you drive each day, and whether you have single- or three-phase supply.
- ›7.4 kW (single-phase): ideal for daily driving under ~60 km with overnight charging — what most Singapore homes need.
- ›11 kW (three-phase): faster top-ups for 60–100 km a day, if your car accepts 11 kW.
- ›22 kW (three-phase): only worth it if your car has a 22 kW onboard charger (some Mercedes, Porsche and Smart models) or you drive very long distances.
If your car's onboard charger maxes out at 7–11 kW, a 22 kW unit will never charge faster than that limit — you would be paying for capacity you cannot use. We size the charger to your car and your real driving.
SS 722 and LTA registration: what the law requires
EV charger installations in Singapore must comply with SS 722, the standard that superseded the older TR 25 from 1 April 2026. In practice that means a dedicated circuit, the correct RCD protection, a properly rated isolator and an installation method approved for your supply.
The charger must also be registered with LTA, and the electrical work must be done by trained electricians under the supervision of a Licensed Electrical Worker (LEW) — with the Certificate of Fitness endorsed by an Equipment Specialist and the LEW. This is not a job for a general handyman.
Every compliant EV charger must be installed to SS 722, certified with a Certificate of Fitness (endorsed by an Equipment Specialist and an LEW), and registered with LTA on OneMotoring. The owner does the registration — we provide all the paperwork. Operating an unregistered charger is an offence under the EV Charging Act.
What you need to register the charger with LTA
Registration is done by the owner on the LTA OneMotoring portal (Singpass login). At the upload step you provide:
- ›The type-approval Approval ID from the Type Approval Label on the charger — only LTA type-approved chargers can be registered;
- ›The Equipment Specialist and Licensed Electrical Worker details, and the date of certification;
- ›The Certificate of Fitness and photographs of the completed installation;
- ›The installation location (with car-park details for HDB or URA car parks).
BSH supplies the Approval ID, the Certificate of Fitness endorsed by an Equipment Specialist and a Licensed Electrical Worker, and the photos — so registration is a quick form-fill on your own account. A fee applies at checkout, and operating an unregistered charger is an offence under the EV Charging Act, so register within 60 days of installation.
What affects the cost of an installation
Two homes can get very different quotes for the same charger. The biggest factors are:
- ›Cable run — the distance from your distribution board to the car porch; longer runs need more cable and containment.
- ›Supply or DB upgrade — older landed homes often need a distribution-board or single-to-three-phase upgrade before a charger can be added.
- ›Concealment — surface trunking is cheaper; concealed wiring, ceiling cutting and making-good cost more.
- ›Charger choice — brand, power tier, tethered vs socket, and smart features.
How a proper installation runs
A good installer surveys before quoting. At BSH that means a site visit and wall scan, a load assessment to confirm your supply can take the charger (or a recommendation to upgrade), a clean install with full protection, testing and commissioning, the LEW-endorsed Certificate of Fitness for your LTA registration, and a workmanship warranty.
Thinking about an EV charger?
Use our free EV assessment to check whether your supply can take a charger and get a firm, no-obligation quote.
FAQ
Can I just charge from a normal 13A socket?
You can trickle-charge slowly from a standard socket in a pinch, but it is slow and not designed for daily high-current use. A dedicated, SS 722-compliant charger on its own circuit is safer and far faster.
Do I need three-phase power?
Only for 11 kW or 22 kW charging. A 7.4 kW charger runs on single-phase, which suits most homes. If you want faster charging and have single-phase supply now, we can assess a three-phase upgrade.
Can you install a charger in a condo car park?
Yes, subject to your MCST or management approval and the available supply. Landed homes are simpler; condos need building coordination, which we can guide you through.
How long does installation take?
A straightforward landed-home install is usually done in a day. Jobs needing a supply or DB upgrade, long cable runs or concealment take longer — we confirm timing in the quote.
Who registers the charger with LTA?
You do — it is filed on your OneMotoring account (Singpass), so it stays in your name. We make it painless: we hand you the type-approval Approval ID, the Certificate of Fitness endorsed by an Equipment Specialist and a Licensed Electrical Worker, and the installation photos to upload. A registration fee applies at checkout (currently discounted by LTA).
Keep reading
SS 722 explained
Singapore's EV charging standard — what changed and whether it's mandatory yet.
Type A vs Type B RCD
Which residual-current device your charger actually needs.
EV charger periodic inspection
The schedule that keeps your charger safe, warrantied and insured.
Do you need a Licensed Electrical Worker?
When the law requires an LEW — and what they actually do.
Power Supply & Switchboard Upgrades
Single-to-3-phase and DB upgrades for EV and more.