Before Installation: Understanding the Current TNB Solar Application Route

Published 15 September 2026 · Publisher: Inhome Solar Sdn Bhd

Solar paperwork is easiest to understand when the two submissions are kept apart. This article follows the current Solar ATAP route described by SEDA Malaysia and TNB on the Malaysia date of publication. Solar ATAP began on 1 January 2026, after the previous NEM programme ended on 30 June 2025. The current arrangement is built around using solar energy at the premises first, with surplus handled through the programme's grid mechanism.[2][5]

Start with the programme that applies now

SEDA's current information describes Solar ATAP as the rooftop route for eligible TNB consumers in Peninsular Malaysia. The basic check is not only whether the roof has space. It includes the TNB account, the consumer arrangement and whether the account is already under NEM or Self-Consumption (SelCo). SEDA says the applicant must be a registered TNB consumer and appoint a SEDA-registered Registered Photovoltaic Service Provider, or RPVSP, for submission through the eATAP system.[3]

That matters for anyone reading an older solar quotation. Inhome Solar's public services page lists solar installation, documentation and application support, and consultancy/advisory work, but it still uses the older phrase "TNB NEM Application". Since the official current programme pages now describe Solar ATAP, ask the provider to confirm the live programme and forms for the specific TNB account rather than copying an old label.[1][5]

Know where TNB's technical check fits

TNB describes the technical assessment as a prerequisite for approval when the proposed solar connection needs one. The current study table separates smaller domestic connections from higher-capacity or higher-voltage cases. SEDA's published thresholds identify a Connection Confirmation Check for a domestic system above 5 kW on single phase or above 15 kW on three phase. Larger non-domestic or higher-voltage connections can move into a Connection Assessment Study or Power System Study, depending on the supply and capacity.[5][7]

The purpose is to establish whether the proposed connection can be accommodated safely within the utility network. A roof photograph cannot answer that question. TNB's Electricity Supply Application Handbook connection guidance is the relevant technical framework, and its metering guidance says TNB provides and maintains the meters used to measure imported or exported electricity while the meter location must remain accessible to TNB personnel.[11][12]

Separate the first application from the final meter paperwork

This is the part most likely to be muddled. Before installation, the RPVSP checks the route, prepares the project information and submits the Solar ATAP application through SEDA's eATAP process. TNB's current Solar ATAP page says the RPVSP assists with the end-to-end application, while SEDA's information places the applicable technical study before approval.[3][5]

After the PV work is fully completed and successfully commissioned, SEDA describes a separate procedure for the meter application and signing of the Solar ATAP contract. Its page also says the interconnection point must meet TNB's ESAH requirements before that submission. TNB's RPVSP application page lists the later documents, including the testing and commissioning form, G and H forms, N and Q records, the Solar ATAP contract and certificate, plus identity or company documents and any generation licence required for the stated capacity.[7][10]

In plain terms, ask which piece of work a provider is discussing: the pre-installation Solar ATAP application, a TNB technical study, or the later meter and contract submission. They are connected, but they are not one interchangeable form.

Prepare useful information for the first review

Send a current TNB bill, the account details, the property type, the supply phase if you know it, and clear roof and meter-area photographs. Add anything that could change the design conversation, such as a renovation, new air-conditioners, an EV charger or a change in how the property is used. A bill and photographs help an installer ask better questions; they do not produce a remote approval or a final system size. Inhome's earlier guide on electrical supply explains why the existing connection belongs in the first design conversation, while its daytime-use guide shows why the timing behind a monthly total also matters.Read the electrical-supply guide and the daytime-use guide.

Questions worth settling before work starts

Ask which current programme applies to the account, whether the proposed capacity needs CCC, CAS or PSS, and whether the document being prepared is for SEDA eATAP or the later TNB meter and contract stage. Ask what must be approved before installation is scheduled, which assumptions are still provisional, and who will submit the commissioning records. Those answers should appear in the provider's current written proposal or application correspondence.

Sources

1. Inhome Solar services
2. SEDA Malaysia Solar ATAP overview
3. SEDA Malaysia Solar ATAP general information
4. TNB Solar ATAP information
5. SEDA Solar ATAP guidelines and submission procedure
6. TNB Solar ATAP application for RPVSP
7. TNB ESAH connection guidelines
8. TNB ESAH metering guidelines