Switching to solar power is a smart move—but getting the solar panel size right is crucial for performance, savings, and long-term success. In Malaysia, with its sunny climate and growing adoption of renewable energy, understanding system sizing can help homeowners and businesses maximise their solar investments.
In this guide, we break down how solar panel size is measured, what factors influence it, and how to find the right setup for your specific energy needs.
What does “solar panel size” mean?
When people refer to solar panel size, they’re usually talking about either the physical dimensions of the panel or its power output, measured in watts (W). For most residential and commercial systems in Malaysia, the panels commonly range from:
- 330W to 550W per panel (standard output)
- 1.7m x 1.0m to 2.2m x 1.1m (physical dimensions)
Larger panels usually mean higher wattage and fewer panels required for the same output, though they require more roof space per unit.
What affects the size of your solar panel system?
To determine the ideal solar panel size in Malaysia, you’ll need to consider:
- Monthly electricity usage (kWh) – From utility bills
- Available roof space – Flat vs. pitched, shaded vs. clear
- Sunlight exposure – Average solar hours in your location
- Future usage plans – e.g., adding EV chargers or appliances
For example, a typical Malaysian household using 400–600 kWh per month might need a 4–6 kW system, which could involve 8–12 panels depending on panel size and efficiency.
Why getting the right size matters
An undersized system may not cover your full electricity needs, leading to higher grid reliance. An oversized system, on the other hand, may not offer proportionate returns under Malaysia’s Net Energy Metering (NEM) scheme. Getting the right fit ensures:
- Optimal energy savings
- Efficient use of roof space
- Better return on investment
- Compliance with local regulations
Need help sizing your system?
As a trusted solar provider, Unitrade Solar offers professional site assessments, energy audits, and system design tailored to your consumption and budget. If you’re unsure what solar panel size in Malaysia suits your property, their experienced team will recommend a solution that balances cost, performance, and space.
What you get with Unitrade:
- Custom system sizing based on real usage data
- High-efficiency panels from top-tier manufacturers
- Full support with NEM applications
- Scalable systems for future upgrades
Final thoughts: Get the sizing right from the start
Choosing the right solar panel size in Malaysia is key to getting the most out of your solar investment. Don’t guess—work with a knowledgeable supplier like Unitrade Solar to ensure your system is designed for maximum efficiency and long-term value.
Book a free consultation with Unitrade Solar today and start your journey to smarter, more sustainable energy use.