Solar energy systems in Malaysia

Tier-1 modules carry a 25-year power output warranty and typically still produce around 80–85% of rated output at year 25. Inverters have a shorter service life and should be budgeted for replacement once during the system’s lifetime — a cost most quotations quietly leave out.

Yes, at reduced output. Malaysian systems are designed around annual yield, not best-case days, so overcast and monsoon periods are already accounted for in the generation estimate we give you. Rain also helps by washing off surface dust.

A standard grid-tied array shuts down automatically during an outage — this is a safety requirement so no power is fed back onto lines engineers may be working on. If you need supply to continue through an outage, that requires battery energy storage designed in from the start.

It is set by your consumption and your usable roof area, not by the size of your house. As a rough guide, 1 kWp needs roughly 5–6 m² of unshaded roof, and a Malaysian home using RM 500 of electricity a month is usually looking at 8–12 kWp. We size it precisely from your bill and a drone survey.

Three things decide it: usable unshaded area, orientation, and whether the structure can carry the additional dead load. We establish all three before quoting — the load calculation especially, because older Malaysian roofs and extensions were often never specified for it. More on our survey method.