Supreeya Talomsin

Throughout my work overseeing Winstar’s solar projects—from site surveys and roof assessments to system design, installation, and final handover—I have had the opportunity to work on more than 300 projects across Thailand, covering factories, commercial buildings, and residential properties.

One issue I encounter repeatedly is that solar investment decisions are often based on figures that do not reflect the customer’s actual circumstances. These may include assumptions that do not match their real electricity consumption patterns, payback periods that appear better than what can realistically be achieved, or decisions driven primarily by the lowest upfront price—with too little consideration given to system quality, long-term care, and maintenance.

As a result, some customers find themselves replacing equipment earlier than expected. Their systems may not perform at their full potential, and the returns they receive may fall short of what they were initially led to expect.

This is why every article I write draws on data from Winstar’s actual installations, together with the latest official announcements and authoritative information. The source of each key figure is clearly identified, allowing you to verify the information, understand how it applies to your situation, and make your own calculations based on your specific needs.

Our goal is not simply to help you decide whether or not to install solar. We want to help you make that decision based on accurate, relevant information—with a clear understanding of the benefits, limitations, and lifetime costs involved. This enables you to gain the greatest possible value from your rooftop solar system while setting realistic expectations from the outset.

We are committed to making clean energy more accessible to people across Thailand and helping every customer gain the full benefit of the system they invest in. Articles that carry a “Technically reviewed by” line have been reviewed by a licensed electrical engineer (COE No. ภฟก.54413) before publication.

Articles compiled

• Solar Rooftop Maintenance — How the System Works and How Long It Lasts
• Solar Tax Deduction 805 — 6 Conditions That Disqualify You From the Right, Check Before Buying
• Solar Rooftop Installation Process and Permits — What to Apply For, Where to Submit, and How Long It Takes
• Is Commercial Solar Rooftop Worth It? What Actually Decides the Answer — Every Factor in One Place