Home Solar Panel Cost
& NEM Guide

Indicative figures — confirm current rates/incentives with the provider. Ask us on WhatsApp.

With electricity tariffs rising and panel prices falling, home solar has moved from niche to mainstream in Malaysia. The economics are now genuinely attractive for many landed homes, especially under the Net Energy Metering (NEM) scheme. Here is the practical picture for Klang Valley homeowners.

Solar panel cost by system size

Cost depends on panel and inverter brand, roof pitch and complexity, cable runs and installer. Prices have fallen steadily as the market matures and component costs have dropped globally.

How Net Energy Metering (NEM) works

Under the NEM scheme, your solar panels power your home’s electrical loads first. Any surplus generation that exceeds your real-time consumption is exported to the TNB grid and credited against the energy units you draw from the grid at other times, on a one-to-one kWh basis. Your monthly TNB bill reflects the net consumption (units drawn minus units exported). If your exported units exceed imported units in a billing period, the surplus credit rolls over to the next bill.

NEM is quota-based and administered through the relevant energy authority. Quotas open periodically — confirm current scheme status, quota availability, and approved installer requirements when you are ready to apply.

Savings & payback period

A well-sized system can offset a substantial share of your electricity bill. Typical payback is 5–8 years, after which you enjoy largely free daytime electricity for the remaining 12–18+ years of panel life. Panels are typically performance-warranted for around 25 years; inverters are usually warranted 5–12 years and will need replacement once during the panel lifetime.

The higher your current monthly TNB bill, the faster your payback. A household with RM 400+ monthly bills typically achieves payback closer to 5–6 years; a modest RM 150 monthly bill may take 8–10 years.

Sizing your system correctly

Size to your actual daytime usage, not the maximum roof space. Review 6–12 months of TNB bills to understand your consumption pattern. A good installer models your generation profile against your usage to find the optimal size. Under NEM’s one-to-one offset structure, oversizing wastes capital because excess generation beyond your annual consumption earns no additional benefit. Undersizing leaves savings on the table.

Is your roof suitable?

• Orientation & shading — south, east or west-facing surfaces with minimal shade from trees, water tanks or neighbouring buildings are ideal. North-facing surfaces generate less in Malaysia.
• Condition & age — address any roof issues (cracked tiles, failing battens) before installation. Panels will be on the roof for 25+ years; see re-roofing guide → if needed.
• Available space — each kWp needs roughly 55–70 sq ft of clear, unshaded roof area. A 6kWp system needs approximately 350–420 sq ft.
• Structural capacity — solar panels add roughly 10–15 kg/sq m to roof load; most Malaysian roof structures handle this comfortably, but older or damaged trusses should be assessed.

Roof type comparison for solar

Installation process

1. Site assessment & bill analysis — installer reviews roof, shading, orientation and 12 months of TNB bills.
2. System design — panel layout, inverter sizing, cable routes and DB connection point agreed.
3. NEM / utility application — installer submits the application to TNB and the relevant authority on your behalf.
4. Approval received — processing time varies; confirm with installer at time of application.
5. Installation — typically 1–3 days on site for most residential systems.
6. TNB meter change & commissioning — TNB replaces the standard meter with a bidirectional NEM meter; system commissioned and monitoring set up.

What to check before you sign

• Panel brand, efficiency rating and performance warranty (should be 25-year linear power output guarantee).
• Inverter brand, warranty duration (minimum 5 years, ideally 10 years or extendable).
• Installer track record, completed project references, and that they handle the NEM application end-to-end.
• Workmanship warranty covering roof penetrations and mounting integrity (minimum 5 years).
• Post-install monitoring system — a good installer provides app-based monitoring so you can track daily generation.
• Whether your DB or wiring needs upgrading before installation — see rewiring cost →

Is solar worth it in Malaysia?

For landed homes with mid-to-high electricity bills, a suitable unshaded roof and a medium-to-long ownership horizon, solar is a strong financial investment: predictable savings, protection against rising tariffs, and a 20–25 year asset life with minimal maintenance. For low-usage homes (TNB bill under RM 150/month) or heavily shaded roofs, the payback period extends significantly. ClickBina coordinates solar-ready electrical works as part of a broader renovation — talk to us about your property.

Mistakes to avoid

• Oversizing to fill the roof — under NEM’s one-to-one offset, generating far more than you consume adds cost without proportional benefit. Size to usage.
• Choosing on price alone — cheaper panels from lesser-known brands degrade faster and may not be covered by a meaningful warranty. Tier-1 panels maintain output significantly better over 25 years.
• Not fixing roof issues first — installing panels on a roof that needs re-tiling within 3 years means dismounting and remounting the array, adding RM 3,000–8,000 in extra cost.
• Ignoring the inverter warranty — the inverter is the most likely component to fail. A 5-year warranty on a system expected to run 25 years means you will replace it once; budget accordingly.

Next Steps

WhatsApp ClickBina your monthly TNB bill amount and a photo of your roof. We will advise on suitable system sizing and coordinate solar-ready electrical works as part of your renovation.

Related guides: House Rewiring Cost → · Re-Roofing Cost → · Renovation Loan →