About Us
Japan’s No.1 engineering consulting company, involved in building infrastructure around the world and supporting people’s safety and security
Since our founding in 1946, we have carried out projects related to the fundamentals of nation building and human resources development in more than 160 regions. Specialists in various fields come together to respond quickly and accurately to the constantly changing needs of society with comprehensive capabilities.
Nippon Koei Energy Solutions provide our clients with the highest quality engineering consulting services in all disciplines to take projects through all life-cycle stages from investigation to design, implementation and even operation. We provide one-stop services for clean energy.
Philosophy
Group Management Philosophy
The ID&E Group has grown to the present by continuing to provide solutions to global social issues that change with the times, based on the accumulation of “knowledge” represented by our technologies. We will continue to contribute to the realization of a sustainable society by leveraging the collective strength of the group to provide new technologies and optimal solutions.
Mission
Make the World a Better Place
Always maintaining high aspirations, we will work hard to improve our skills, and provide services based on our accumulated technological capabilities.
ID&E Group is a consulting and engineering company with outstanding technical and management capabilities cultivated through domestic and international infrastructurerelated businesses.
We will continue to be a trusted business partner in various sectors around the globe, providing comprehensive technological services and making the world a better place by creating a sustainable and prosperous future.
Vision
Providing Unique Value as a Company
Evolving into a cohesive, global corporate group Top class worldwide by 2030
The ID&E Group aims to be a consulting and engineering firm that is overwhelmingly No.1 in Japan and top class worldwide. We will evolve into a global corporate group that transcends the differences between people with different backgrounds, places of origin, cultures, etc. and unites them as one.
Values
Tackle your problems with sincerity and the road ahead shall be clear.
“Willingness to Try” “Valuing Speed”
“Entrepreneurial Mindset” “Stakeholder Satisfaction”
As members of the ID&E Group, we want to be useful and help improve the world. To achieve this, we will continue working with sincerity, demonstrating the willingness to try, valuing speed, maintaining an entrepreneurial mindset, and seeking stakeholder satisfaction.
Our Projects
Projects
Nava Nakorn Electricity Generating (NNEG) Expansion (60 MW + 30 MW)
Nippon Koei Energy Thailand was appointed as Owner’s Engineer (OE) for NNEG Expansion project for both Phase 2 and Phase 3. Scope of work included conceptual design, FEED for Phase 3, EPC tendering and full OE services during execution.
Chonburi Clean Energy (TA – 8.63 MW)
Nippon Koei Energy Thailand team was appointed as Technical Advisor (TA) and fully integrated to the Project Management Team of the Client for the most advanced and environmentally friendly Industrial Waste-to-Energy Plant in Thailand.
Chaiyaphum Wind Farm (80 MW)
Nippon Koei Energy Thailand team was appointed as the Owner’s Engineer (OE) to conduct
Duri Kosambi (T&D – 500KV)
REN Cogen Gas Engine (30MW)
Tambak Lorok Block 3 (CCPP) (850MW)
Nippon Koei Energy Indonesia team was appointed the Owner’s Engineer (OE) to supervise the smooth erection and commissioning of the power plant. The project will supply electricity for large industrial demand in the Java Bali Grid.
Nam Phak Hydropower Plant (168MW)
Nippon Koei Energy Thailand was appointed as Owner’s Engineer (OE) and also in charge of the Detailed Design for Red Book services. The project comprises two main reservoirs formed by 3 ACC embankments dams and several weirs.
Sitanduk Hydropower Project (55MW)
Kiangan Hydroelectric Plant (18MW)
Bac Lieu & Soc Trang Offshore Wind (172MW)
Nippon Koei Energy Thailand team was appointed as the Owner’s Engineer (OE) to oversee the development and construction supervision of the nearshore wind farm project in Vietnam.
Cirata Floating Photovoltaics (145MW)
Nippon Koei Energy Indonesia team was appointed as the Project Management Consultant (PMC) to oversee the implementation of Southeast Asia’s largest floating solar plant.
Hong Phong 4 Solar PV Park (48MW)
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Career
Join Us
WIND ENGINEER
Updated
Jan 30, 2026
DRAFTSMAN
Updated
Jan 30, 2026
ELECTRICAL ENGINEER
Updated
Jan 29, 2026
Thailand
Nippon Koei Energy (Thailand) Co., Ltd.
142, Two Pacific Place, 19th Floor, Room no. 1903-05, Sukhumvit Road, Khlong Toei Sub-district, Khlong Toei District, Bangkok 10110 - THAILAND
Indonesia
PT. Nippon Koei Energy Indonesia
Menara Sentraya 20th Floor, Jalan Iskandarsyah Raya No. 1A Blok M-Kebayoran Baru Jakarta 12160, Indonesia
Tel:
Vietnam
The Rep Office of Nippon Koei Energy (Thailand) Co., Ltd. in Vietnam
3rd Floor, Hoang Cau Skyline Building, 36 Hoang Cau Street, O Cho Dua Ward, Hanoi, Vietnam
Tel: