Survey
Roof, shading, structure, earthing and the existing electrical board.
Solar Panel Installation in Malaysia
This page is the installation process — how a rooftop solar PV system is specified, documented and built. The homepage covers the overall offer; residential and commercial pages cover who it is for.
Service overview
Installation is more than placing panels. It includes structural and electrical checks, Solar ATAP and TNB documentation, mounting, DC and AC cabling, inverter setup, testing and commissioning.
Inhome Solar carries out residential and commercial installations through branches in Selangor/Kuala Lumpur, Johor, Ipoh, Penang, Batu Pahat, Seremban and Melaka.
Who this is for
- Homeowners and businesses that already understand they want a rooftop system and need to know the build sequence.
- Clients comparing what happens after a quotation is accepted.
What it can help with
- A single contractor path from survey to documentation to physical works.
- Coordination with SEDA Malaysia and TNB rather than leaving the owner to file every form.
- After-sales maintenance available once the system is running.
Process
Design freeze
Panel layout, inverter location, cable routes and the kWp that matches the agreed bill and roof.
Authority documents
Solar ATAP application and TNB interconnection files. Works on the roof often wait on programme and utility steps.
Physical installation
Rails or mounting, modules, inverter, isolation, labelling and safety checks.
Testing and metering
Commissioning and TNB meter works complete the grid-connected system.
Equipment and system notes
Modules, inverters, mounting and cabling are specified on the quotation.
Manufacturer product and performance warranties are those stated in the equipment documents at handover.
Related projects
Common questions
How long does installation take?
Physical installation on a typical landed home is often measured in days once materials are on site. Solar ATAP application, TNB documentation and metering can add weeks around that work. Timelines vary with authority processing and site complexity.
What is Solar ATAP?
Solar ATAP is the Solar Accelerated Transition Action Programme for Peninsular Malaysia. It replaced Net Energy Metering as the current consumer rooftop programme from 1 January 2026. Homes and businesses use solar first for their own load and may receive bill credits for eligible exported energy in the same billing period.
How much maintenance do solar panels need?
Rooftop systems need periodic inspection, cleaning where soiling is heavy, and checks on inverters, cabling and monitoring. Inhome Solar provides operations and maintenance support after installation. Frequency depends on the site and the package selected.
Do solar panels work during cloudy weather?
Yes. Panels generate from daylight, not only direct sun. Output is lower on overcast days. Malaysia’s tropical climate still produces useful annual generation, but month-to-month figures vary.