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Korat 1 solar photovoltaic plant, Thailand Landscape photo of the Huay Bong wind farm


Mott MacDonald has over 35 years’ experience in Thailand, working on a diverse range of projects in the energy, transport, infrastructure, water and environment and sectors.

We’ve also been supporting education initiatives in the region from the Bangkok office since the early 2000s. Our team of specialists work closely with clients as well as our other offices in Asia Pacific to provide a truly integrated service that is second to none.


In the energy sector, we are one of the industry’s leading advisors to private developers and banks on a range of thermal and renewable energy developments with our Thailand office supporting our local and international clients’ energy projects across the Asia Pacific region.

In thermal power, our Thailand-based team has provided technical advisory support to owners and investors on gas, coal, biomass and energy from waste projects in Thailand and throughout South East Asia. We are familiar with the latest technological developments at all scales of power plants, from a few MWs up to several 1000 MWs.

In solar and wind power, our Thailand-based team offers a unique depth of resource and capability, having supported the majority of operating capacity so far developed in both Thailand and South East Asia as well as regularly publishing leading-edge papers on regional resource and technology issues and presenting these insights at regional conferences. Our extensive experience means that we truly understand challenges for solar and wind power projects developed in the South East Asia region.

Working together with our network of regional offices, we are able to deliver robust and forward-looking technical advice from our experience supporting over 5 GW of regional solar projects (10 GW globally) and 5.6 GW (65 GW globally) for wind projects. Our team offers expertise covering the full project lifecycle, from project conception to operation, including meteorological station and met mast campaign management, plant layout optimisation using specialised 3D modelling software, flood protection design, technology selection and yield optimisation, procurement, detailed design review, commissioning and operational performance review, including performance-based reassessment of future plant production.

Our combined project experience and research track record supports optimal performance and reliable design of our client’s projects.

Transport and infrastructure

Lighting up Bangkok skyline are spectacular twin cable stay bridges straddling a meander in the Chao Phraya River. One of our prestigious projects, it forms part of the Thai capital’s Industrial Ring Road, connecting industrial areas in Samut Prakarn with the Port of Bangkok. Mott MacDonald in a consortium with Epsilon and Norconsult Civil Engineering undertook the feasibility study and preliminary and detailed design of the £128M project for the Department of Rural Roads, Bangkok.

We’re project managing and supervising major water supply projects and designing highways and industrial infrastructure. We’re also leading a study for three new mass transit lines in Bangkok.

As one of the foremost highways engineering firms in Thailand, we provide the full range of services in planning, design and supervision. We are working for the Department of Highways to widen a four-lane highway on the Greater Mekong Subregion East-West Economic Corridor and won the detailed engineering design of Tak-Mae Sod highway for the Department of Highways. On behalf of the World Bank we're also introducing an innovative public private partnership for the Thailand Highways Management project and we're carrying out feasibility studies on the Yellow, Brown and Pink mass transit lines for the Office of Transport and Traffic Policy and Planning.

Water and environment

We’re increasingly being consulted to support clients in achieving climate change objectives. One current project involves helping communities in the Mekong River Basin adapt to climate change, by producing hydrological, agricultural and economic models and building institutional capability to reduce vulnerability to climate change effects. Our client is the World Bank.

In the water sector, a key client is the Thai Tap Water Supply Public Company – the largest privately owned tap water producer in Thailand. As the employer’s representative, we’re providing project management on the first phase of a project to expand Banglen water treatment plant and its distribution facilities. We’re also providing construction supervision for a 100MLD water production facility which includes assessing future water tariff levels and a privatisation study for Nakhon Ratchasima Municipality.

Our industrial and environment team has been working for the two largest private industrial estates’ developers in the region. And for a new 42km motorway project spanning from Suvarnabhumi Airport to Chachoengsao, we are carrying out environmental impact assessments and stakeholder consultation.


Our education assessment team was set up by our experts in Cambridge Education in 2002 to support education reform around the country. Our Bangkok-based team has repeatedly completed large cycles of school assessments. For example, the evaluation reports from 105 school assessments across seven provinces were rigorously quality checked by the team before submission to ONESQA, the Thai Government department responsible for standards in education.

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