Updated August 2026. Practical guide for Malaysian landlords and tenants, not legal, electrical, tariff, or tenancy advice. Check current utility terms, building rules, and your agreement. Use a qualified electrician for the install.
This prepaid electricity FAQ Malaysia rental guide answers the questions landlords ask before installing room meters. Prepaid electricity for rental rooms means the tenant pays for electricity costs before using power on a private room sub-meter. That room’s kilowatt-hour (kWh) use is measured separately. The master utility bill is still paid by whoever holds the registered account. This is not a “prepaid Tenaga Nasional Berhad (TNB) Smart Meter”. TNB Smart Meters send premises-level readings to TNB for monitoring and billing. Private WiFi sub-meters handle room-level allocation.
If you have ever stared at one bill for six rooms and thought “okay… who used all this?”, you are in the right place.
Prepaid electricity FAQ Malaysia rental basics
Let’s start with the definitions most people need: what the room meter measures, and what it does not replace.
What is prepaid room electricity?
The tenant pays for electricity costs before using power in a room or on a chosen circuit, for example the room’s aircond. A private sub-meter sits after the master meter, measures consumption, and turns that usage into a cost balance. That pay-first flow is the core idea behind prepaid room metering.
That is different from including electricity into rent, splitting one bill equally, or reading meters at month-end and chasing payments later. Prepayment first, consumption second. For the full details, see our guide to prepaid electricity for rental rooms in Malaysia.
Is a TNB Smart Meter prepaid?
Not for rooms. TNB describes its Smart Meter as a device that records electricity usage and sends readings to TNB for monitoring and billing. On myTNB you can see account-level usage, bills, and Energy Budget alerts. That is still one premise account. It is not a room-by-room prepaid system.
A private WiFi room sub-meter is installed after that TNB meter. It measures electricity usage for one room or circuit. Some platforms like PowerLah can take top-ups and shows a room balance. For the operating flow, see how smart power metering works for landlords.

Master TNB account questions
Who still pays the master TNB bill?
The registered account holder still pays the TNB bill, which is usually the landlord. Prepaid room electricity costs are how landlords recover the bill amount from tenants. They do not replace the TNB account or move the account holder’s duties.
Should a landlord use Change of Tenancy or keep the account?
TNB’s Owner / Tenant Issues FAQ gives owners two paths before a new tenant moves in: complete a Change of Tenancy (COT), so the tenant is responsible for that utility account, or keep the account and watch usage and payment on myTNB.
COT fits better when one household rents the whole unit. For bilik sewa (rented rooms) or co-living, keeping the account is usually cleaner: several unrelated people share one supply, and a private room sub-meter measures what each room used. At the end of day, landlords should choose the model that is best for their property, the turnover rate, and how they structure the tenancy agreement. There is no automatic “best” option for every rental.
Fairness questions for shared bills
Why does aircond make equal bill-splitting feel unfair?
It is unfair because different tenants usually use different amount of power. One tenant might be working on night shifts and runs the aircond in the afternoon when it is sunny. Another might be away most weekends and mostly uses fans when they’re at the rental. Equal split by headcount is easy, but it is usually not fair. Room-level electricity consumption metering gives everyone clear numerical data that are difficult to dispute.
The fairest arrangement is usually to agree upfront on what the room meter covers. It can be the whole room, aircond only, or selected sockets. Then decide how shared loads (fridge, corridor lights, water pump, WiFi) are handled. This can be included in rent, by a fixed formula, or even on a separate meter.

Can you meter aircond only instead of the whole room?
Yes, when the wiring allows a clean circuit split. Many room rentals put the heaviest variable load, the bedroom aircond, on the prepaid circuit and leave lights and small sockets on a shared or rent-included base. That hybrid is common when a full-room rewire is impractical or costly.
The trade-off is clarity: tenants must know which outlets and appliances sit on the prepaid balance and which do not. Label the board, put the same wording in the tenancy pack, and walk through it at handover so nobody discovers a “free” socket that can be abused.
Credit, pauses, and move-out
What happens when prepaid credit reaches zero?
On a typical prepaid room setup, the configured circuit pauses at zero credit and comes back immediately after a successful top-up. The mechanic also usually include low-balance alerts, transaction history, and auditable activities log.
Is a zero-credit pause the same as using electricity to pressure rent payment?
No, keep them separate. Prepaid credit is paid electricity costs on a specified circuit, while rent arrears sit on the tenancy account. Do not use the meter as a rent-collection tool. If rent payment is in dispute, follow the tenancy agreement and get proper advice instead of turning off the switch.
Fewer surprises help everyone. Send low-credit reminders, show transaction history, give tenants a human to call, and write down a fallback. People should know how to top up on Friday evening, not when the aircond dies at 1 a.m.

What happens to unused credit at move-out?
Some operators refund unused credit after a final reading. Others convert remaining balance into a statement credit against deposits or final charges. Either approach can work if the rule is written, the final metered electricity usage is shared, and both sides can see the top-up history.
Platforms like PowerLah also has a clearly spelled out Refund Policy for how different payment cases are handled. Different platforms might treat these cases differently, so check before you commit.
Installation and onboarding notes
What are the installation basics?
- Map the circuits. Confirm which board and breaker feed each room or appliance.
- Check capacity and condition. A qualified electrician should assess wiring, protective devices, meter rating, and enclosure space.
- Confirm connectivity. WiFi meters need stable coverage where they are installed (usually in the Distribution Board, or beside each airconds). Test it there.
- Check property rules. For strata homes, ask the Joint Management Body (JMB) or Management Corporation (MC) about renovation access and electrical work.
- Label and test. Match every device to the right room, test the measurement and switching functions, and keep an installation record.
- Onboard both sides. Walk through balances, top-ups, alerts, support, and move-out settlement.
Do not move, open, or modify TNB equipment yourself. A private sub-meter belongs on the customer side of the installation. Do not present it as TNB hardware.

What should be agreed before move-in?
Write it down: what is metered, starting balance, displayed RM/kWh, shared loads, top-up methods, low-balance alerts, zero-credit behaviour, unused-credit refunds, move-in and move-out readings, maintenance access, and who to call if a reading looks wrong.
PowerLah simplifies this for both owners and tenants, since everything is available clearly in its app.
What records should both sides keep?
Always keep a paper trail of everything. Save the disclosed RM/kWh, the date it took effect, opening and closing readings, top-up receipts, and any mid-tenancy rate change notice. When a dispute appears months later, those dated artefacts matter more than a screenshot of a chat.
Once again, the PowerLah platform makes this easy for both owners and tenants as each transaction and account activities are logged in an auditable record.
Coverage notes
Does this FAQ apply in Sabah and Sarawak?
Room metering can work in many places. However, the paperwork for Peninsular Malaysia does not automatically apply elsewhere. This FAQ is written mainly for TNB customers in Peninsular Malaysia. Sabah Electricity Sdn Bhd (SESB) serves Sabah and Labuan, while Sarawak Energy Berhad (SEB) serves Sarawak. Their account processes, tariffs, and rules can differ.
Check with the local utility and your building management before you install a meter or set a rate.
Does prepaid room electricity replace water or sewerage billing?
No. Room electricity prepaid only covers the metered electrical circuit you configured. Water, sewerage (for example Indah Water Konsortium (IWK) where applicable), internet, and other house charges stay on their own arrangements unless you expressly bundle them in writing. Mixing those lines into one opaque “utilities” figure recreates the problem prepaid was meant to fix. Keep electricity costs visible on its own.
Is prepaid room electricity right for every rental?
No, prepaid room metering is not a fit for every property. Electricity included in rent can still fit a short stay with controlled loads (for example, homestays or transit houses). COT can fit a whole-unit tenancy. Postpaid sub-metering can fit a trusted household that prefers monthly settlement.
Prepaid room metering works best when usage differs by room, tenants turn over often, and both sides want visible consumption without monthly manual meter reading and bill chasing.
Before buying hardware, map the actual circuits in the unit, decide which loads are private versus shared, and work out the rate basis to be used. If that sounds like your property, see how PowerLah works and check pricing. Ask how the room circuit, common loads, top-up records, and fallback would work in your actual unit before you commit.
Quick takeaway
A decent prepaid electricity setup is not just a meter. You need a mapped circuit, a disclosed calculation, a top-up path that works, sensible alerts, and a shared understanding that the master utility account still exists. Get those right and the chat stops being “who made the bill so high?” and becomes “here is the usage, here is the bill amount, here is the record.”
Use this prepaid electricity FAQ Malaysia rental as a conversation starter, then confirm the details against your property, utility, and agreement.
Sources
- Tenaga Nasional Berhad, Owner / Tenant Issues FAQ — Change of Tenancy vs myTNB monitoring for owners and tenants. Accessed 2026-08-26.
- myTNB, Smart Meter — official description of TNB Smart Meters recording usage and sending readings for monitoring and billing. Accessed 2026-08-26.
- Tenaga Nasional Berhad, Residential Smart Meters — account-level smart-meter readings, monitoring, and Energy Budget. Accessed 2026-08-26.
- Suruhanjaya Tenaga (Energy Commission), st.gov.my — regulatory information and electricity-sector notices for Peninsular Malaysia. Accessed 2026-08-26.
