About Us

OK Solar by PSTC

Operated by PST Energy 1 Co., Ltd., under the Power Solution Technologies Public Company Limited (PSTC) group Thailand’s leading investor and provider of integrated renewable energy solutions. With more than 10 years of experience in the renewable energy industry, our company is trusted for its expertise in solar power systems, covering investment and development of Solar Farm projects that supply electricity to the Provincial Electricity Authority (PEA) and the Metropolitan Electricity Authority (MEA). We also invest in Private PPA solar rooftop systems and provide Engineering, Procurement, and Construction (EPC) services for factories and various commercial buildings (Solar Rooftop).

In 2025, OK Solar by PSTC expanded its services to include Solar Home installations for residential customers. With a strong commitment to delivering clean and modern energy technology, we aim to make solar energy more accessible for homeowners, helping reduce long-term electricity costs and increasing household savings. This aligns with Thailand’s long-term direction to promote clean energy usage and sustainable development across the country.

ปีในวงการพลังงาน

Vision

The company’s vision is to drive progress in line with global change and the era of Digital Transformation. We are committed to excelling in power system management and national energy operations, as well as delivering comprehensive energy business services. Our goal aligns with Net Zero Emissions initiatives under internationally recognized standards.

Mission

  1. Business operations: Supplying equipment for electrical systems, renewable energy systems, and energy-saving solutions, including the distribution of LPG, LNG, and NGV to support customer projects with reliability and confidence.
  2. Service & investment: Providing comprehensive services including engineering design and EPC solutions for renewable energy and electricity production. We also invest in renewable energy through Investment Private PPA, ensuring maximum efficiency and benefiting society and the environment in line with Net Zero Emissions goals.
  3. Customer service development: Enhancing service quality and expanding customer groups to support future growth.
  4. Organizational development: Improving business processes and service efficiency to uphold high service standards and support service expansion with measurable outcomes.