Choosing an Installer is Choosing a 25-Year Partner

 

When you install a solar system in Malaysia, you’re not just buying equipment; you’re choosing a long-term service partner. Your solar panels are expected to last 25 years or more. The quality of the installation, the details of the contract, and the responsiveness of the after-sales service will directly determine your experience and return on investment for the next quarter-century.

The cheapest quote is rarely the best. Before you sign any contract, be sure to ask your potential installer these 7 key questions:

 

Question 1: Are You SEDA Malaysia Certified?

 

This is the most basic and most important question.

• Why it matters: SEDA (Sustainable Energy Development Authority Malaysia) is the official body that regulates Grid-Connected PV (GCPV) systems. Only SEDA-certified installers are legally qualified to design, install, and commission grid-connected solar systems and handle your NEM application.

• How to avoid pitfalls: Ask for their SEDA registration number and proof of certification. If they hesitate or cannot provide it, that’s an immediate red flag.

 

Question 2: Can I see your portfolio of local past projects and customer references?

 

Talk is cheap; proven results matter.

• Why it matters: An experienced installer will be proud to show you their track record. This proves they have the technical skills and, crucially, the practical experience with various Malaysian roof types (e.g., clay tiles, metal deck).

• How to avoid pitfalls: Ask for photos and addresses of projects similar to your home (e.g., terrace, bungalow) or business (e.g., factory). If possible, ask for 1-2 customer references you can contact.

 

Question 3: What brands of solar panels and inverters do you use?

 

The quality of the hardware is the foundation of your system’s lifespan and efficiency.

• Why it matters: Not all panels are created equal. Ask if they use “Tier-1” manufactured panels, which generally offer more reliable quality and a robust 25-year performance warranty. The inverter is the “brain” of the system; its brand and warranty (usually 5-10 years) are just as important.

• How to avoid pitfalls: Be wary of installers who just say, “we use the best,” but won’t specify the brands.

 

Question 4: Is the installation done by your own team or by subcontractors?

 

This is about quality control and accountability.

• Why it matters: Solar companies that use their own in-house installation teams typically have stricter quality control and uniform standards. If subcontractors are used, there can be finger-pointing if problems arise (like a roof leak).

• How to avoid pitfalls: Give preference to installers who use their own certified, in-house teams.

 

Question 5: Is your quote all-inclusive? What are the fine details in the contract?

 

“Hidden costs” are the biggest trap.

• Why it matters: A professional quote should be itemized, breaking down the cost of panels, inverter, mounting system, cabling, labor, monitoring system, and any fees for SEDA and TNB applications.

• How to avoid pitfalls: Ask for a “turnkey” or “all-in” price. Ask explicitly, “Does this price cover everything until the system is commissioned and running?” Read the contract, paying close attention to payment schedules and project timelines.

 

Question 6: What do your after-sales service and “workmanship warranty” cover?

 

This is what separates a “sales company” from a “service company.”

• Why it matters: The hardware has a manufacturer’s warranty (e.g., 25 years for panels), but the installation quality is covered by the installer’s workmanship warranty.

• How to avoid pitfalls: Ask exactly how long their “Workmanship Warranty” is (industry standard is typically 1-5 years). If the system fails or underperforms, what is their standard response time?

 

Question 7: Will you handle the entire NEM application process?

 

Dealing with TNB and SEDA can be complicated.

• Why it matters: The Net Energy Metering (NEM) application involves significant paperwork and technical submissions. A reliable installer provides this as a complete, hassle-free service, from submission to arranging for TNB to install the new meter.

• How to avoid pitfalls: Confirm that the NEM application service is included in the quote, not billed as an “extra.”

Conclusion: Choosing a solar installer is a major decision. By using these 7 questions, you can filter out unqualified or irresponsible vendors and find a true professional partner who will safeguard your green investment for the next 25 years.