Contents
- Solar Cost Malaysia: How Much It Costs & How Much You Can Save
- Solar System Cost Estimates by Size
- How Much Can You Save Each Month?
- How Long Is the Payback Period (ROI)?
- Why TNB Tariffs Keep Rising — And Why That Matters
- Frequently Asked Questions About Solar Cost & Savings
- Related Articles
- Cost Guides by Area
Solar cost in Malaysia is one of the most common questions Malaysian homeowners and businesses ask before going solar. This page explains solar cost in Malaysia clearly, with reference to TNB.
Solar Cost Malaysia: How Much It Costs & How Much You Can Save
Quick answer: A 3kW solar system starts at around RM6,000–RM10,000, a 5kW system around RM18,000–RM25,000, and a 10kW system around RM30,000–RM45,000 (already including panels, inverter, installation & approvals). The average payback period (ROI) in Malaysia is 4 to 7 years, and homes with an electricity bill above RM300 a month usually see the most noticeable savings.
The most common question people ask once they start thinking about going solar: what does it actually cost, and how long before it “pays for itself”? This guide breaks down the cost by system size, estimates your monthly savings based on your existing TNB bill, and covers the factors that determine the real ROI for your home or business.
The actual cost depends a lot on the type of installation you need – for a breakdown by segment, see our solar guide for homes, solar guide for businesses, or our solar battery guide if you’re planning to add battery storage.
For the latest price estimates by panel type and brand, read Solar Panel Prices Malaysia. If upfront budget is a concern, there are interest-free solar financing options from banks that can lower your upfront cost. For ready-to-install home solar packages, see Solar Panels for Homes.
Solar System Cost Estimates by Size
Cost depends mainly on the system size (kW) you choose. Here are the market price estimates for residential solar installations in Malaysia:
| System Size | Cost Estimate | Best For |
|---|---|---|
| 3 kW | RM6,000 – RM10,000 | Homes with a TNB bill of RM200–RM300 a month |
| 5 kW | RM18,000 – RM25,000 | Homes with a TNB bill of RM300–RM500 a month |
| 10 kW | RM30,000 – RM45,000 | Homes with a TNB bill of RM500–RM800+ a month, or small commercial premises |
This price usually already includes the solar panels, inverter, installation work, and the approval process (permits & registration). While the upfront cost is fairly high, most homeowners treat solar as a long-term investment — a quality solar system can last more than 20 years.
How Much Can You Save Each Month?
The amount you save depends on your existing monthly electricity bill and the size of the system installed. Here’s a general estimate:
| Monthly TNB Bill | Recommended System Size | Estimated Monthly Savings |
|---|---|---|
| RM200 – RM300 | 3–4 kWp | RM100 – RM180 |
| RM300 – RM500 | 5–6 kWp | RM180 – RM350 |
| RM500 – RM800 | 7–10 kWp | RM350 – RM600 |
| RM800+ | 10–15 kWp | RM600+ |
Real example: A home with a monthly bill of RM500 that installs a 6kWp system and uses most of its appliances during the day could expect to save RM250–RM400 a month (RM3,000–RM4,800 a year). Over 25 years, total savings could potentially exceed RM100,000, depending on future electricity tariffs and system performance.
Many homeowners manage to cut their electricity bill by 50% to 90%, depending on the system size and daytime usage pattern. For businesses, the savings are usually even higher — premises such as offices, factories, warehouses, retail shops, restaurants and hotels that operate during the day can cut their electricity costs by 30% to 70%.
How Long Is the Payback Period (ROI)?
On average, solar pays for itself in 4 to 7 years in Malaysia — one of the fastest payback periods in the region, thanks to consistent year-round sunlight and steadily rising electricity tariffs. After that point, the energy your system generates keeps reducing your monthly electricity cost for the rest of the system’s lifespan (typically 20–25 years).
The main factors that determine the real ROI for your home or business:
- Daytime electricity usage — the more electricity you use while your panels are generating (e.g. air-conditioning, washing machines, office equipment), the higher your real savings.
- Correctly sizing the system — a system that’s oversized for your actual needs won’t necessarily give you the best ROI.
- Roof orientation & condition — a roof facing south or east/west with minimal shading usually generates more energy.
- Inverter & panel quality — Tier 1-rated brands with solid warranties help ensure performance holds up over time.
- Regular maintenance — a well-maintained system keeps its efficiency up throughout its lifespan.
Why TNB Tariffs Keep Rising — And Why That Matters
Electricity tariffs in Malaysia are shaped by several factors: global fuel prices, the cost of natural gas and coal, grid infrastructure upgrades, growing energy demand, and government energy policy. A rising tariff trend means your electricity bill will likely keep climbing over time — which makes solar an increasingly valuable investment, since it “locks in” a portion of your energy cost at a much lower rate for the long term.
For businesses classified under TNB’s commercial/industrial customer categories, another significant cost component is the Maximum Demand (MD) charge — billed based on the highest level of power drawn from the grid, not just the total energy used. Solar (especially with a battery) can help reduce this charge by cutting your reliance on the grid during peak-demand periods.
Important update: The NEM (Net Energy Metering) scheme officially ended on 30 June 2025. Its replacement programme, Solar ATAP, took effect on 1 January 2026, offering a cash rebate of up to RM3,000 through SuRIA Home — this also affects how ROI is calculated for new systems. Read the full guide to incentives & Solar ATAP →
Frequently Asked Questions About Solar Cost & Savings
What does it actually cost to install solar on a typical terrace house?
Most terrace houses in Malaysia suit a 3–5kW system, depending on the electricity bill and available roof space. Cost estimates range from RM6,000 to RM25,000 depending on the size chosen.
Is solar worth it if my electricity bill is low (under RM200)?
Solar can still be worth it, but the payback period will likely be longer compared to a home with a higher bill. The system needs to be correctly sized so it isn’t oversized relative to actual usage.
How much can a business save with solar?
Commercial premises that operate during the day (offices, factories, warehouses, retail shops, hotels) can typically cut their electricity costs by 30% to 70%, depending on usage patterns and system size.
How long does a solar system last?
A quality solar system with Tier 1 panels and a good inverter typically lasts 20 to 25 years, with regular maintenance.
Related Articles
Cost Guides by Area
Want pricing that’s more specific to your area? Check out our local guides for Bukit Jelutong, Setia Alam, Sierramas, Kajang & Bangi, Subang Jaya, Taman Tunku Sarina (Jitra), Bandar Darulaman (Jitra), Bukit Banyan, Bandar Puteri Jaya, Laguna Merbok, Lagenda Heights, and Bertam Perdana. There are also guides in Bahasa Malaysia for Petaling Jaya and Kota Bharu, or see the full list of areas we cover near our Petaling Jaya HQ.
Want a real cost & savings estimate for your property?
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