FAQ
Solar Basics:
How do solar panels work?
Solar panels (also known as PV or photovoltaic cells) capture sunlight and with an inverter, convert it into electricity that we can all use.
Do solar panels work on cloudy days?
They still work using available sunlight but expect a slightly reduced output.
How is solar eco-friendly?
It’s clean, renewable, not generated by fossil fuels (oil, gas and coal) and doesn’t emit any harmful pollutants.
Do solar panels work at night?
Solar panels don’t work at night because they need sunlight to generate electricity.
Is a battery required?
Not necessarily.
Solar panel systems are connected to the TNB grid.
Your home uses Solar Electricity first and exports any excess to help lower your bill (under Solar ATAP, effective Dec 2025).
When usage exceeds generation or at night, it seamlessly draws from TNB.
A battery is optional – it stores excess Solar Electricity for night use and can provide backup power during blackouts.
Will I have electricity during a blackout?
For safety reasons, your solar panel system will shut down during a blackout and resume once power is restored. You’ll only have electricity during a blackout if you opt for our energy storage and backup solution, which can help keep essential appliances running.
Solar Safety:
Are solar panels safety hazards?
Solar panels are similar to other electrical appliances in your home, like refrigerators and air conditioners, in terms of safety.
Do they give off radiation?
Solar panels are free from harmful radiation. The electric field radiation from inverters is minimal, similar to that of a fluorescent light tube.
Do solar panels cause fires?
Not when designed and installed correctly. Our solar panel system designs exceed industry standards and local regulations, ensuring utmost protection with earthing, circuit breakers and surge protection for both panels and inverters. All our installers are licensed by the relevant authorities, ensuring professional and safe installations.
Are they safe for my roof?
Yes. We install panels on a mounting structure to ensure no direct contact or damage. As a bonus, they can help cool down your roof.
Can my roof handle the weight of solar panels?
Yes, most roofs can. To ensure safety, we consult with you and conduct a general inspection to check for issues like termite and water damage before installation.
Do I need to do anything to my roof first?
Solar ATAP:
What is Solar ATAP?
Solar ATAP is Malaysia’s latest rooftop solar scheme that replaces NEM (which ended in June 2025).
It allows you to install a solar panel system to generate Solar Electricity for your own use.
Any unused Solar Electricity can be exported to the grid and used to offset the Energy charge on your TNB bill.
How is Solar ATAP different from NEM?
The main difference lies in how your exported Solar Electricity is credited:
- Solar ATAP: Offsets Energy charge only.
- NEM: Offsets Energy, Capacity, and Network charges.
| TNB Bill Offset | Solar ATAP | NEM |
| Energy | √ | √ |
| Capacity | x | √ |
| Network | x | √ |
| Savings | Per kWh RM0.27-RM0.37 | Per kWh RM0.44-RM0.54 |
What happens if I export more Solar Electricity than I can offset in a particular month?
Exported Solar Electricity can offset up to 100% of the Energy charge on your TNB bill. Any excess beyond that will be forfeited, so it’s important to size your system correctly and maximise your direct usage of Solar Electricity during the day.
How long can I enjoy the benefits of Solar ATAP for?
The contract for Solar ATAP lasts for 10 years.
What happens after my Solar ATAP contract ends?
You can continue saving on your TNB bills by directly using the Solar Electricity generated by your system.
Am I eligible for Solar ATAP?
Yes, if you’re a registered TNB consumer in Peninsular Malaysia with your name on both the property title and TNB bill.
How do I apply to participate in Solar ATAP?
We will assist you with the application process and will require copies of your MyKad, last 3 TNB bills and proof of home ownership (e.g., Cukai Taksiran bill), in compliance with SEDA requirements.
What system size can I install?
Solar ATAP’s installation limits for domestic (home) consumers:
| Home Electrical System | Installation Limit |
| 1-Phase | 5kWac |
| 3-Phase | 15kWac |
Solar Savings:
How does solar help me save money?
Direct Solar Usage: Your home uses the Solar Electricity you generate directly, avoiding grid imports and all TNB charges.
Daytime use (8am to 6pm): Solar powers your home directly as it’s generated.
Energy Storage (optional): Excess solar is stored for night use before any grid import or export.
Export to TNB: Excess Solar Electricity not immediately used or stored is sent to the grid to further lower your bill.
How much solar will I use directly?
Direct Solar Usage ranges from 15% to 40%, depending on household consumption. Households with higher electricity consumption usually run more appliances during the day, so they use more solar directly. Here are some examples:
| Monthly TNB Bill | Estimated Direct Solar Usage (Without Energy Storage) |
| RM300 | 15-20% |
| RM500 | 20-25% |
| RM800 | 25-30% |
| RM1,000 | 30-35% |
| RM1,500 | 35-40% |
How do savings differ between using solar directly and exporting it?
Your best savings come from using solar directly, while exporting adds a bit more.
| TNB Bill Charges | Direct Usage of Solar Electricity | Export of Solar Electricity |
| Energy | √ | √ |
| Network | √ | – |
| Capacity | √ | – |
| SST | √ | – |
| KWTBB | √ | – |
| Savings | RM0.487 – RM0.596/kWh | RM0.27 – RM0.37/kWh |
How much can I save?
That depends on your household’s consumption, usage patterns, and the capacity of your solar panel system. Use our Solar Savings Calculator to get an estimate.
How else can I maximise my solar savings?
Use more appliances in the daytime (e.g. EV charger, washing machines)
Minimise shading on your panels (e.g. relocate satellite dishes, prune trees)
Maintain your system properly to ensure optimal generation
Why does daytime use matter?
Solar Electricity is generated during the day (8am–6pm, peaking around 11am–3pm). The more you use while your system is generating, the more you save – since you avoid grid imports and all bill charges.
Would Time-of-Use (ToU) help me save more?
ToU can lower your bill, but actual savings depend on how much of your weekday usage you can shift to off-peak hours (10pm–2pm).
What affects how much I save?
Several factors can impact your savings:
- Roof design, tilt and orientation
- Shading from trees, buildings, or roof fixtures
- Excessive dust/pollution from surrounding areas
- Weather patterns
- Proper system maintenance
- Electricity consumption patterns
Energy Storage & Backup:
Is a battery required to save with solar?
Not necessarily.
- With Malaysia’s current tariff structure, the Solar ATAP scheme, and the high cost of batteries, adding a battery may not significantly increase savings for most homeowners.
- You can already save by using the Solar Electricity your system generates directly during the day.
- Under Solar ATAP, you’ll also be able to export any excess Solar Electricity for additional savings on your TNB bill.
- We’ve made the battery system an optional add-on for those who want greater energy independence. If you’d like to explore this, feel free to reach out to us for more information.
Can I save more if I installed a battery system?
Yes, you can. A battery lets you store excess solar electricity for later use, reducing how much you draw from the grid at night.
Depending on your usage, a 7kWh battery (stores +/- 210kWh/month) can help you save an about RM100–RM120 more per month. However, under Solar ATAP, these additional savings may drop to around RM40 per month, as excess Solar Electricity can be exported for bill credits instead.
| Scenario | Energy Handling (+/- 210kWh/month) | Estimated Monthly Savings | Incremental Gain From Battery |
| Without Battery | Exported to TNB (Solar ATAP) | +/- RM57-RM78 | N/A |
| With 7kWh Battery | Stored and used at night | +/- RM100-RM120 | +/- RM40 |
Batteries also add to your system cost, so it’s best to weigh the cost and potential savings to decide if it’s the right fit for your home.
Please note that actual savings can vary depending on household usage patterns, weather conditions, and other day-to-day factors.
Why don’t you bundle in a battery system?
Battery storage is an optional add-on because it of its high cost, and not every household benefits equally from it.
By making it optional, you have the flexibility to decide whether the additional investment makes sense for your usage pattern and budget.
This also allows you to install your solar system first and decide later if you’d like to add batteries once you better understand your Solar Electricity consumption patterns.
Does installing a battery system mean I will have electricity during blackouts?
Yes, if you opt to include our Backup Power Box that can help keep essential appliances running during blackouts.
What is a BESS controller?
A BESS controller acts as the “brain” of the system – managing how your battery charges, stores, and supplies power safely, while ensuring it works smoothly with your solar and home.
Installation:
Can solar panels be installed on any type of roof material?
Yes, except:
- Asbestos: Handling can release dangerous fibres.
- Polycarbonate & rubber mat: Can’t support the weight of the panels securely.
- Slate: Brittle and prone to cracking.
Does roof pitch affect solar installation?
Yes. For best results, your roof pitch should be less than 15°. This angle helps your panels capture the most sunlight and maximise your savings. Steeper roofs receive less direct sunlight, making them less efficient.
Do I need any permission to install solar panels on my roof?
We’ll manage all necessary authority approvals, as needed. If you live in a gated community, you may also need a permit from your management office for the installation.
How many solar panels will you install?
The number of solar panels we install will depend on your system size. We will propose a system size based on your household needs and site conditions – with the goal of maximising your savings – after your home assessment.
What does installation entail?
- We mount the solar panels on your roof using industry-standards methods.
- The inverter, PVDB/Emit Digital Energy Hub and battery (as applicable) are placed outside your home, as close as possible to your home’s electricity distribution board (DB).
- Proper wiring connections are made between all components.
Can I opt to install these components inside my home?
We recommend placing them outside your home for several reasons:
- Heat dissipation: Open spaces keep them cooler for better performance and longer life.
- Accessibility: Easier maintenance without disrupting the household.
- Future-proof: Easily integrate an EV charger or additional batteries in the future.
How long does it all take?
Installation generally takes up to 8 hours, subject to site and weather conditions.
Do you conceal cables during installation?
We do not conceal cables within walls. However, all cables are neatly organised and housed in industry accepted trunking.
Maintenance & Modification:
Does my solar panel system require maintenance?
Yes, proper maintenance:
- Reduces wear on key components
- Extends the system’s life
- Ensuring consistent Solar Electricity generation over time
- Ensures that warranties remain valid
How often does my solar panel system require maintenance?
We recommend at least one Standard Health Check each year to ensure all components are working optimally.
Can I add components like a battery after installation?
Yes. Installation fees may apply in addition to the cost of the required component(s). We’ll provide a quotation upfront, and you can decide before proceeding.