Turnkey Design & Installation
Survey, design, permits, installation and handover by a single engineering team from a listed company. The system is yours from handover day.
Full design and installation
by one team
EPC (Engineering, Procurement and Construction) is a service where our engineering team takes responsibility for everything from site survey, system design, equipment procurement, permits and installation through to testing and handover.
The system is yours from handover day and you use all the power it generates. Suits both homes and businesses that want to own their system.
- On-site and aerial surveys
- Actual power usage logged before design
- Output simulated with PVsyst and Helioscope
- Installed to IEEE standards, with all permits handled
Design and Installation Process
One team handles every step, so there is clear accountability from survey day to handover day.
- Site surveyRoof, structure and electrical panel checks, plus an aerial survey
- Power usage loggingReal load data collected to choose a system size that pays off
- Design and simulationOutput simulated with PVsyst / Helioscope, then quoted
- Permits and installationApplications handled with the electricity authority and relevant agencies; installed to IEEE standards
- Testing and handoverSystem tested and handed over with output monitoring
Who EPC Suits
Buy the System (EPC) or Free Installation
Businesses with bills of THB 250,000+ per month can choose either option. Our engineers compare them using your actual bills.
| Topic | Buy the system (EPC) | Free installation (PPA) |
|---|---|---|
| Investment | You invest in the system | No investment |
| Ownership | Yours after handover | During the contract: |
| Electricity cost | Use the power you generate; bills fall with actual output | Buy power at a contracted discount |
| Best for | Homes and businesses that want to own the system | Businesses with bills of THB 250,000+ |
EPC Projects
Examples of full design-and-install projects from the company’s portfolio
FAQ
How is buying the system different from free installation?
With EPC you own the system and use all the power it generates. With free installation (a power purchase agreement, or PPA), the company invests in the installation and you buy power from the system at a contracted discount.
Who applies for permits with the electricity authority?
Our team handles all permit applications with the electricity authority and relevant agencies.
How long does installation take?
It depends on system size and the permit process.
Who maintains the system after handover?
You can choose the company’sOperation & Maintenance (O&M)service, with a 24-hour monitoring room.
Request a Solar Proposal for Your Business
Send us your business details. An engineer will contact you to review your electricity bills, schedule a roof survey and propose both free installation and system purchase options.