Nexa Energy designs, supplies and installs complete solar rooftop systems for homes, shops, SMEs, factories and hotels across Thailand. We size systems from real electricity use — not just sell panels.
Start with what you know
Tell us about your electricity use and site so our team can tailor its advice. No technical knowledge needed.
* Required • Unsure about your roof? Our team can help check.
This helps us choose a suitable system type and size.
Choose one based on how you will use it.
Use the average of your last 1–3 bills
Helps estimate direct solar use and battery needs.
Helps choose mounting equipment. Answer what you know; no need to inspect the roof yourself.
Choose the surface supporting the panels.
Choose the supporting structure, not the roofing material or solar rails.
Preliminary solar estimate
Enter your average monthly bill to see a first solar estimate
An initial estimate from your answers. Our team will check site details and pending items before a final quote.
Share your name and phone so our team can explain the estimate and next steps.
Keep the leading 0
Bill photo (ไม่บังคับ)
Helps size the system. Images or PDF
Roof photo (ไม่บังคับ)
Helps a first look at mounting
