Substation

Service Overview

Connecting Power with Precision

PWH (Thailand) delivers comprehensive EPC solutions for high- and medium-voltage substations across Thailand. Our services include engineering design, equipment sourcing, civil construction, installation, testing, and commissioning — all aligned with EGAT, PEA, and international standards.
Our services include engineering design, equipment sourcing, civil construction, installation, testing, and commissioning — all aligned with EGAT, PEA, and international standards.
Whether greenfield or brownfield, our substations are built to ensure maximum reliability, operational safety, and seamless integration into the grid. With decades of experience, we serve utilities, developers, and industrial clients with a commitment to quality and long-term performance.

Compliance with National Standards

Designed and delivered according to EGAT, PEA, and IEC protocols for safety and reliability.

Turnkey Delivery

All-in-one solutions from civil work to control systems — fully managed
in-house.

Future-Ready Systems

Scalable and automation-compatible
to support evolving grid demands and smart technologies.

Project Highlights

Browse our portfolio of substation projects —

showcasing our capabilities across transmission,

distribution, and industrial power systems.

FAQ

Need Help? Start Here
What services does PWH (Thailand) Co., Ltd. offer?

We provide full-scope EPC (Engineering, Procurement, and Construction) services across the power and infrastructure sectors, including:

  • Coal and ash handling systems using belt conveyor technology
  • High-voltage transmission lines (115 / 230 / 500 kV)
  • Substations and switchyards
  • General construction
  • Renewable energy solutions (solar farms, rooftops, floating systems, and hybrid solar setups)
  • Operation,maintenance, and system upgrades
What industries does PWH Thailand serve?

We primarily serve the energy, power generation, and infrastructure sectors, including coal-fired power plants, utility companies, industrial facilities, and renewable energy developers. 

Does PWH Thailand have experience
with international partnerships?

Yes. Since our founding as a subsidiary of Germany’s PHB-Weserhütte A.G., we have worked with global partners including Kumagai Gumi (Japan), Hawker Noyes and PWH (Sydney) from Australia. These collaborations strengthen our capabilitiesin delivering international-standard projects.

Are your services turnkey?

Yes. We provide comprehensive turnkey EPC solutions — from concept design and engineering to procurement,construction, testing, and commissioning — ensuring end-to-end project delivery

Do you provide renewable energy solutions?

Yes. We offer EPC services for solar energy projects including ground-mounted solar farms, rooftop solar systems, floatingsolar installations, and hybrid solar power setups. Our solutions are tailored for both utility-scale and small-scale applications.

What voltage levels does PWH Thailand
handle in transmission projects?

We have extensive experience in the design and construction of 115 kV, 230 kV, and 500 kV power transmission lines, as well as associated substations and switchyards.

Is PWH Thailand involved in general construction projects?

Yes, we also undertake general civil and industrial construction projects, providing structural, mechanical, and electrical works to support a variety of infrastructure developments.

What regions does PWH Thailand operate in?

While based in Thailand, we operate throughout the region and are open to cross-border projects. Our international experience and partnerships allow us to adapt to various project environments.

How does PWH Thailand ensure quality and safety?

We follow strict international and local engineering standards, employ experienced project teams, and apply rigorous quality control and safety protocols throughout all project phases—from design to commissioning.

What sets PWH apart from other EPC contractors?

Our strength lies in over three decades of specialized experience, a commitment to quality, and strong global partnerships.We combine engineering expertise with project reliability, sustainability focus, and a deep understanding of the energy sector.

How can I contact PWH Thailand for a project inquiry or proposal?

You can reach us via our Contact page, phone, or email. Our team is ready to discuss your project needs and provide a tailored solution backed by decades of expertise.

Project References

Proven Excellence Through
Real-World Results

Explore our portfolio of successful projects across power systems, substations, renewable energy, and infrastructure — each one a testament to our commitment to quality, innovation, and client satisfaction.

Looking to partner on your next 
energy or infrastructure project?

Let our experts provide you with a tailored EPC solution
that meets your goals.