Koh Samui Solar Installation
Rooftop solar surveys, installation and after-sales care in Koh Samui, Surat Thani.
Who solar suits in Koh Samui
On Koh Samui, electricity is a major cost for the hospitality business, because hotels, resorts and villas run air-conditioning, water pumps and pool systems almost all the time. At the same time, many homes and properties on the island place a high value on backup power, so hybrid systems with batteries are asked about more often here than on the mainland.
Common projects in Koh Samui
- Solar for hotels, resorts and villas in Koh Samui
- Solar for restaurants and cafés in Koh Samui
- Hybrid solar with backup power in Koh Samui
- Home solar in Koh Samui
Projects we have handed over in Koh Samui
Open each one for the site photos and equipment details.
Site conditions in Koh Samui
Island work differs from mainland work in that every piece of equipment has to cross by boat. Scheduling means locking in the shipping slot and the installation slot together, and any on-site fix that needs extra parts takes longer than usual. We therefore survey in more detail than on a typical job before ordering. And because the island is surrounded by sea, salt-resistant equipment is standard, not an optional extra.
Designing for the coast in Koh Samui
Near the sea, salt air, heavy rain with monsoon wind, and lightning surges all have to be planned for at the design stage. Each is explained here:
System sizes for Koh Samui
The right size depends on your electricity bill and when you use power. We quote after a site survey.
Examples of systems we have installed
Examples of our work across Southern Thailand. Browse all 468 project photos.
Koh Samui, Surat Thani
- Services in this area
- Surveys, installation and after-sales care
- Site survey
- Site surveys by appointment
- Travel charge
- Any travel charge is confirmed before booking
- Installation warranty
- 2 years
Site surveys are by appointment, and any travel charge is confirmed before booking.
Other districts are listed on our solar installation in Surat Thani & Koh Samui page.
FAQ
Questions from customers in Koh Samui
Does 19Energy install solar in Koh Samui?
Yes. We provide surveys, installation and after-sales care in Koh Samui, Surat Thani. Site surveys are by appointment, and any travel charge is confirmed before booking.
Have you installed in Koh Samui before?
Yes: 15 kW Hybrid Solar System on Koh Samui (Three-phase Hybrid system, handed over July 3, 2026). Site photos and equipment details are on the project page.
Does installation in Koh Samui cost more than in other districts?
No area surcharge. Any travel charge is confirmed before booking. Price depends on the roof, structure and cable run; the site survey costs THB 1,200–1,500, refunded in full against your quote when you go ahead with the installation.
Can a building near the sea in Koh Samui have solar?
Yes. For coastal sites we use aluminum mounting structures and stainless-steel fixings, keep the inverter out of direct sea spray, and recommend washing panels with fresh water more often, because rain doesn't rinse salt deposits off fully.
General questions, such as PEA permits, output in the rainy season and warranties, are answered in our full FAQ.
Our team replies in English — on LINE, by email or by phone. Sending a photo of your electricity bill and your location on LINE is the quickest way to get an estimate.