Solar Savings & ROI Calculator — the right system and what you'll save
Enter your monthly electricity bill, tell us how you use power, and instantly see the recommended system size in kW, your monthly savings and the payback period.
☀️ Solar produces power during the day — the more you use in daylight hours, the faster the payback
* Preliminary estimate (based on ~4.34 THB per unit and ~150 units/kW/month production, excluding VAT). Actual figures depend on the on-site survey, roof orientation and angle, and how you use electricity.
The glowing green bar = your payback year · before it = investment period · after it = pure profit
All prices are estimates in THB (excl. VAT) — a free on-site survey gives you an exact quote
Did you know? Using most of your electricity during the day gives the fastest payback, because you use the sunshine directly. Night-time use has to be stored in batteries, which adds cost — the more you use at night, the more expensive the system and the slower the payback.
Want exact numbers for your home or business?
Our team will survey your site and design the system free of charge — no obligation.