Solar Panel Installer in Johor Bahru

Solar installation in Johor Bahru covers everything from a straightforward rooftop system for a landed home to larger setups for factories and commercial buildings around Tampoi, Nusajaya, or Pasir Gudang. The work includes site assessment (roof condition, shading, orientation), sizing the system to your electricity usage, mounting the panels, wiring them into an inverter, and connecting to TNB's grid under the NEM (Net Energy Metering) scheme. A proper installer also handles the paperwork: TNB application, Suruhanjaya Tenaga (ST) approval, and wiring certification from a competent person.

What to check before hiring

Look for an installer registered with ST and holding a valid electrical contractor's license, since this is a legal requirement for grid-connected systems, not optional paperwork. Ask what panel and inverter brands they use, what warranty covers the equipment versus the installation work, and whether they include monitoring so you can track output after commissioning. A detailed quote should break down panel count, wattage, inverter capacity, and mounting type rather than giving one lump figure. It's also worth asking how they handle roof penetrations and waterproofing, since a poor seal here causes leaks years later.

How we score installers

Our rankings weigh licensing, documented experience with NEM-approved systems, responsiveness, and how clearly a company explains costs and timelines. See the full ranked guide to electricians in Johor Bahru for how these 9 solar installers compare, and read our methodology for the scoring criteria in detail.