Power System & Solutions Co. Ltd.

Trusted Partner for Solar PV Project Development

We provide High Quality Engineering Procurement and Construction  ( EPC  Services ) for Solar PV Power Projects. We built,

  • Solar Farm ( Ground Mounted ) Project.
  • Solar Rooftop Project.
  • Floating Solar Project.

We have our in-house engineering and design team for separate design engineers for Electrical, Civil and Solar Designing. We are capable of doing complex and efficient designing of all types of Solar PV Projects (Ground Mounted, Rooftop or Floating). Our Head of Design and Engineering have more than 15 years of experience.

  • PV Layout 
  • DC / AC Layout 
  • PVSyst Analysis
  • Single Line Diagram
  • Cable and Interconnection Diagram
  • SCADA / Monitoring 
  • Structure Erection Diagram
  • PV Generation Analysis Report
  • Site Feasibility Analysis
  • Float Structure Designing ( Floating PV)


We have a separate team for on-site and off-site project managers. Our projects managers have extensive experience as construction manager with over 15 years of average experience in handling energy projects in different sites and locations in Thailand.

  • On-Site Project Management, Control and Reporting.
  • Off-Site Project Timeline and Resource Management.
  • Documentation and Data Management.

Our procurement team have a long term relationship with local and international suppliers of tier-1 equipment. We get a relatively fair price for the equipment and a good payment and services / warranty terms. Which leads to an overall reduction in price.

  • Solar PV Panels : Longi, GS, JP Solar (n-type)
  • Inverters : Huawei, EEI
  • Structures : BEBasor, Arctech Solar
  • Cables / Trays : BCC, BE Basor
  • Weather Station : Kipp Zonen, Rika
  • Other BoS : Tier-1 Supplier

Our local permits team have extremely good relations with the Thai. Govt. Agencies for the permits and licenses and hence its easier for us to acquire it for our clients even before the construction is started.

  • Company Formation, Accounts and HR-Admin Services
  • Board of Investment ( BOI ) Approval
  • PPA Documentation for PEA and EGAT.
  • Local Construction and Land Permits ( Provincial Gov.)
  • Arranging Short-Term Visa and Work Permit for Partner’s Consultants / Visitors.
  • Special Assistant for any other type of permits or licenses in Thailand

We have our Quality Assurance, Management, Control and Testing plan for all the Solar PV Installation works and equipment pre-commissioning will makes our plants reliable and long lasting. We provide all types of testing and commissioning services, especially for electrical.

  • Electrical and Mechanical Testing of Installation and Equipment
  • Calibration and Initial Setting of AWS and Recording Equipment
  • Synchronization and Commissioning of Plant
  • Performance Ratio Analysis and Testing
  • Pre-feasibility testing of site / roof for solar projects
  • Job Safety, Health and Environment Testing and Assessment
  • Proper handover documentation ( From EPC to O&M )

For any business enquiry you can contact us at, ashish.kumar@onepss.com, +66 9174 26265

Power System & Solutions Co. Ltd. , 135/10, 7th Floor, Amornphan 205 Tower2, Soi Nathong, Rachadapisek Road, Dindang, Bangkok 10400 Thailand, +66 2 692 4422

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