Key Takeaway
- ROI now depends more on daytime electricity usage than export credits
- NEM 3.0 is no longer the main framework for new solar decisions
- Solar ATAP makes self-consumption and system sizing more important
- Rising tariffs, AI data centres, and cooling costs are making solar more relevant
- Businesses usually benefit more when their operations consume power during the day
A few years ago, most people treated rooftop solar as an eco-friendly upgrade. It was marketed as something good for the planet, good for monthly savings, and good for homeowners who want to save more on their monthly TNB bill.
That is still partly true, but it is no longer the full story.
Come 2026 and solar panels in Malaysia have risen to prominence again. With subsidy rationalisation, rising cooling demand, and electricity hikes, Malaysians are starting to see solar energy as a viable option.
“In Peninsular Malaysia, the RP4 base tariff was set at 45.62 sen/kWh (effective from 1 July 2025), which makes many households and businesses look harder at ways to reduce daytime grid consumption.”
Why Are More Malaysians Rethinking Solar Panels Now?
Monthly bills are already painful, and many households worry that future tariff changes could make them worse.
But for businesses, the concern is bigger. Electricity is not just a bill, it is part of operating cost, pricing strategy, cash flow, and long-term competitiveness.
- To F&B owners ,you know how much your fridge’s monthly electricity costs to keep your goods fresh.
- For Factory owners and logistic providers, diesel prices had alright bite into your cashflow
But that’s not all.
Tariff uncertainty: Malaysians are becoming more aware that electricity subsidies and tariff structures can change over time.
AI and data centre demand: Malaysia’s growing role in the regional data centre economy means electricity demand is becoming a national infrastructure issue.
Hotter living conditions: More air-conditioning usage means higher electricity consumption, especially during sunny daytime hours when solar performs best.
Post-NEM reality: With NEM 3.0 no longer the main driver for new installations, buyers are now focusing more on self-consumption and proper system sizing.
Is Malaysia’s Weather Good Enough For Solar Panels?
Malaysia is actually well-suited for solar energy because the country receives strong sunlight throughout the year.
But there is one important catch.
Hot weather does not automatically mean perfect solar performance. Solar panels need sunlight, but excessive heat can slightly reduce panel efficiency. Cloud cover, monsoon periods, roof shading, and poor panel placement can also affect output.
- A landed home with an unshaded roof may perform well.
- A factory with a wide metal rooftop and heavy daytime energy consumption may perform even better.
- But a terrace house blocked by neighbouring buildings or trees may not achieve the same results.
That is why serious solar decisions should always include a proper site assessment, which many solar companies in Malaysia do.
The Oversizing Trap: Why Bigger Is Not Always Better
There is an assumption that a larger solar system automatically means better savings.
That used to be easier to justify when export mechanisms were more favourable. Today, oversizing can become a problem if the system produces more energy than the property can use during the day.
A simple way to think about it:
High bill + low daytime usage = weaker solar fitModerate bill + high daytime usage = stronger solar fitHigh bill + high daytime usage = best solar fit
Who Benefits Most From Solar Panels In Malaysia?
Solar is not equally valuable for every property. It works best when the building consumes a lot of electricity during solar generation hours.
| Property Type | Fit Level | Why Solar Works (Or Doesn’t) |
|---|---|---|
| Factories and warehouses | Strong Fit | Large rooftops and consistent daytime operations make them one of the strongest solar use cases in Malaysia. |
| Offices and commercial buildings | Strong Fit | Air-conditioning, lighting, computers, lifts, and office equipment usually operate during daytime hours, matching solar generation well. |
| Retail outlets and supermarkets | Strong Fit | Long operating hours and cooling or refrigeration loads can create predictable daytime energy usage and stronger ROI potential. |
| Landed homes with daytime occupancy | Strong Fit | Homes with remote workers, elderly residents, home businesses, or EV charging often consume more electricity while solar panels are actively generating power. |
| Homes with high night-time consumption | Moderate Fit | Solar can still help reduce bills, but ROI may be weaker unless energy usage can be shifted toward daytime hours. |
| Properties with heavy shading or unsuitable roofs | Weak Fit | Trees, neighbouring buildings, poor roof orientation, or structural limitations can reduce solar performance significantly. |
| Very low electricity users | Weak Fit | Lower monthly bills may result in longer payback periods and weaker financial justification for installation. |
| Short-term property owners | Weak Fit | Owners planning to move soon may not stay long enough to fully recover installation costs through long-term savings. |
Is Solar Still Worth It Without NEM 3.0?
Yes, but solar works differently now.
SEDA’s extension notice stated NEM 3.0 quota offers run until 30 June 2025 (or until quotas were allocated). Solar ATAP is implemented from 1 January 2026 as a continuation of NEM, designed for self-consumption while still allowing surplus export offsets under updated rules.
Under Solar ATAP, the focus is now more on self-consumption and we have a whole blog on Solar ATAP Benefits.
As a result:
- Proper system sizing matters more
- Daytime electricity usage is more important
- Oversized systems may not deliver the best ROI anymore
For homeowners and businesses with strong daytime energy usage, solar can still provide:
- Lower electricity bills
- Better protection against future tariff hikes
- More predictable long-term energy costs
What Should You Check Before Installing Solar Panels?
Before committing to solar, Malaysians should look beyond the headline package price. At the very least ask your provider these questions:
- Roof suitability: Is the roof strong, unshaded, and properly oriented?
- Daytime usage: How much electricity do you use between morning and evening?
- System size: Is the proposed system based on actual consumption patterns or just your bill amount?
- Installer credibility: Is the contractor experienced, properly documented, and transparent about warranties?
- Inverter quality: Is the inverter reliable, efficient, and covered by a clear warranty?
- Maintenance plan: Who handles inspection, cleaning, troubleshooting, and after-sales service?
- Regulatory handling: Does the provider manage the relevant TNB, SEDA, or approval processes?
A cheap solar quote is not always the best quote. Poor installation can lead to roof leakage, underperformance, warranty disputes, and disappointing savings.
“Maintainge is important, dust accumulate overtime and after rainstorms, leaves and branches may cover the panels.”
How Much Does Solar Panel Installation Cost In Malaysia?
Solar is not cheap upfront, which is why many Malaysians hesitate before installing it.
For residential homes, a typical solar system in Malaysia usually costs between RM15,000 to RM40,000+, depending on:
- Property type
- Roof size
- System capacity (kWp)
- Panel and inverter quality
- Installation complexity
Larger homes and heavier electricity users may pay even more.
Here is a rough breakdown of common installation ranges in Malaysia:
| Property Type | System Size | Estimated Cost Range |
|---|---|---|
| Small terrace house | 3 to 5 kWp | RM10,000 to RM22,000 |
| Double-storey terrace | 5 to 6 kWp | RM16,000 to RM24,000 |
| Semi-D house | 7 to 10 kWp | RM24,000 to RM38,000 |
| Bungalow | 10 to 15 kWp | RM38,000 to RM60,000+ |
| Commercial / factory | 50 kWp and above | RM150,000 to RM1 million+ |
Most Malaysian homeowners today spend around:
RM3,000 to RM4,000 per kWp installed
That price usually includes:
- Solar panels
- Inverter
- Mounting structure
- Wiring
- Installation labour
- TNB and Solar ATAP application handling
- Monitoring system setup
The good news is that solar prices in Malaysia have become significantly cheaper compared to a decade ago. But be wary of cheap quotations that don’t include after-sales service.
When Should You Avoid Solar For Now?
Solar panels can deliver long-term savings, but they are still a major investment upfront (as shown above).
Returns usually happen over several years, not overnight, so solar works best for people planning to stay in their property long term.
Not every property is also suitable for solar.
For example:
- Apartments and condominiums often have limited roof access or shared rooftop restrictions
- Homes with heavy shading or poor roof orientation may generate weaker results
- Very low electricity users may struggle to justify the installation cost
- Older roofs with structural issues may require repairs before installation
Solar also tends to work better for households with stronger daytime electricity usage. Homes that are empty most of the day may see weaker ROI compared to homes with:
- Remote workers
- EV home charging
- Daytime air-conditioning usage
- Home businesses
- Elderly family members staying at home
You should also be cautious if a vendor promises extremely fast payback periods without properly analysing your actual energy usage habits.
A good solar provider should be willing to say: “Solar may not be the best fit for your current situation.”
That honesty matters more than aggressive sales promises.
Solar is Worth Installing When Demands Meet it
Yes, solar panels are still worth installing in Malaysia, especially for homeowners and businesses with strong daytime electricity consumption.
If you have an EV at home, use a lot of electricity for your hydroponic plants or just want to make sure your TNB bill hits double digits, solar panels are worth the investment.
This guide is brought to you by PRESS, our PR Agency is eager to encourage greener alternative adoptions among Malaysians. We also think Solar panels are just cool in general.
Frequently Asked Questions About Solar Panels Worth Installing in Malaysia
Are Solar Panels Worth Installing In Malaysia?
Yes, solar panels can be worth installing in Malaysia, especially for landed homeowners and businesses with strong daytime electricity usage. The returns are usually long term, so it works best for people planning to stay in the property for several years.
How Much Does Solar Panel Installation Cost In Malaysia?
Residential solar installation in Malaysia commonly starts from around RM15,000 and can exceed RM40,000 depending on system size, roof condition, inverter quality, and installation complexity. Commercial systems can cost much more due to larger capacity requirements.
Is Solar Still Worth It After NEM 3.0 Ended?
Yes, but the strategy has changed. With Solar ATAP replacing the older NEM model, solar is now more focused on self-consumption, meaning users benefit most when they use solar electricity directly during the day.
Can I Claim Solar Panel Installation For Income Tax In Malaysia?
For individual homeowners, there is generally no direct personal income tax deduction specifically for residential solar installation. Businesses may have access to tax incentives such as capital allowances or green investment-related incentives, depending on eligibility.
Do Solar Panels Work During Rainy Or Cloudy Days In Malaysia?
Yes, solar panels can still generate electricity on cloudy days, but output will be lower than during strong sunlight. Malaysia’s weather is generally suitable for solar, but roof direction, shading, and system design still affect performance.
Who Should Not Install Solar Panels Yet?
Solar may not be ideal for apartments, condominiums with shared rooftops, heavily shaded homes, very low electricity users, short-term property owners, or buildings with roof issues. A proper site assessment should come before installation.
