Overseas Projects

In delivering consulting services to the clients of developing countries, it is highly essential for consulting engineers to look into their pressing problems and help them solve those problems through transfer of technology tailored to their specific needs.
NEWJEC has participated successfully in many overseas projects mainly in Southeast Asia and in Africa, Central America as well, performing engineering, and consulting services for construction of hydroelectric and thermal power plants and distribution systems. For these projects, NEWJEC has taken on a full range of engineering assignments, embracing potential studies, preinvestment and feasibility studies, detailed engineering and design, tender evaluation, construction supervision, operational assistance and personnel training.
The NEWJEC's achievements in engineering various overseas projects have been accorded international recognition. Its engineering excellence exhibited in two big hydroelectric power projects, Saguling and Cirata in Indonesia, is honored by Japan Society of Civil Engineers with an Outstanding Civil Engineering Achievement Award, one of the highest honors for the firms working in the consulting community.

Thermal Power Plants

West Java Coal-Fired Thermal Power Project (600MW), Indonesia Feasibility Study financed by the World Bank, completed in 1994.
Phu My Ⅰ Combined Cycle Power Project (1,090MW), Vietnam Basic and Detailed Design, Preparation of Bid Specifications and Bidding Documents, Bid Evaluation, Construction Supervision and Management, financed by JBIC (Japan Bank for International Cooperation), for EVN (Electricity of Vietnam), completed in 2004.
Calaca Ⅱ Coal-Fired Thermal Power Project (300MW), Philippines Detailed Engineering and Design, Preparation of Bid Specifications and Bidding Documents, Bid Evaluation, Construction Supervision and Management financed by JBIC (Japan Bank for International Cooperation), for NPC (National Power Corporation) of the Philippines, completed in 1996.
Shihanoukville Combined Cycle Power Project (180MW), Cambodia Feasibility Study financed by JICA (Japan International Cooperation Agency), completed in 2002.

Hydro Power Plants

Saguling Hydroelectric Power Project (700MW), Indonesia Feasibility Study financed by JICA (Japan International Cooperation Agency), Basic and Detailed Design, Preparation of Bid Specifications and Bidding Documents, Bid Evaluation, Construction Supervision and Management financed by JBIC (Japan Bank for International Cooperation) and the World Bank, for PLN (Indonesian State Power Enterprise), completed in 1987.
Cirata Hydroelectric Power Project (500MW), Indonesia Feasibility Study, Detailed Engineering and Design, Preparation of Bid Specifications and Bidding Documents, Bid Evaluation, Construction Supervision and Management financed by the World Bank, for PLN (Indonesian State Power Enterprise), completed in 1989. (Photo: Underground Powerhouse Cavern)
Bakaru Hydroelectric Power Project (126MW), Indonesia Feasibility Study financed by JICA (Japan International Cooperation Agency), Detailed Engineering and Design, Preparation of Bid Specifications and Bidding Documents, Bid Evaluation, Construction Supervision and Management financed by JBIC (Japan Bank for International Cooperation), for PLN (Indonesian State Power Enterprise), completed in 1991
Kun Hydroelectric Power Development Project, 2004 and 2014, Myanmar Dam: Rock-fill Type, H=68m,
Installed Capacity: 60MW Feasibility study, detailed design and construction supervision up to 2004 for Department of Hydroelectric Power (DHP) of Ministry of Electric Power.
Instruction on repair of crack occurred at penstock tunnel, and survey and instruction on land slide occurred at the right side bank with its countermeasures for Department of Hydropower Implementation (DHPI) of Ministry of Electric Power in the course of In-House Engineering Services for DHPI up to 2014.
Nancho Hydropower Project, 2012, Myanmar Dam: CVC (Conventional Vibrated Concrete) Type, H=135m,
Installed Capacity: 40MW Feasibility study, detailed design for bidding, construction design and construction supervision under In-House Engineering Services for Department of Hydropower Implementation (DHPI) of Ministry of Electric Power.
Picacho Hydroelectric Power Plant, 2016 (180 kW), Honduras Micro-Hydroelectric Power Generation Project using residual potential energy between pressurized treated water for water supply and the secondary pressure on a water supply pipeline located at downstream of Picacho water treatment plant owned by National Autonomous Services of Aqueduct and Sewerage at Tegucigalpa City.
Design, preparation of bidding documents, construction supervision and technical transfer to the client, under JICA Grant Aid. Concurrent project with Concepción HPP.
Concepción Hydroelectric Power Plant, 2016 (250kW), Honduras Micro-Hydroelectric Power Generation Project using unutilized water-head potential taken from existing dam to water treatment plant owned by National Autonomous Services of Aqueduct and Sewerage at Tegucigalpa City.
Design, preparation of bidding documents, construction supervision and technical transfer to the client, under JICA Grant Aid. Concurrent project with Picacho HPP.
Bakaru Ⅰ & Ⅱ Hydro Electric Power Project (INDONESIA ,completed in 2026)
Bharbhung Storage Hydropower Project (NEPAL ,completed in 2024)
Upper Cisokan Pumped Storage Hydro Electric Power Project (INDONESIA ,completed in 2026)
Jatigede Hydropower Project (INDONESIA ,completed in 2022)
Sedawgyi & Baluchang No.1 Hydropower Plant Rehabilitation Project (MYANMAR ,completed in 2025)
Canaveral & Rio Lindo Hydropower Plant Rehabilitation Project (HONDURAS ,completed in 2026)

Renewable Energy

Demonstrative Research on Photovoltaic Power Generation System

Demonstrative Research on Power Output Stabilization and Integrated Control Technologies for Large-scale Photovoltaic Power Generation Systems in Xining, China, 2009 [300kW] In this demonstrative research, we attempted to use the electric double-layered capacitors featuring high-speed charge and discharge characteristics, compact design, and high maintainability as a system that demonstrates its superb functionality to reduce momentary output fluctuations, in order to prepare for increasing adverse influence of photovoltaic (PV) energy that makes momentary fluctuations even of the order of seconds on the grid system of grid-connected large-scale photovoltaic power generation systems with a future increase in the number of PV.
Demonstrative Research on Photovoltaic Power Generation System in Chaungtha, Myanmar, 2005
[Photovoltaic Power: 80kW]
[Wind Power: 40kW]
[Diesel Generation: 60kW] The objective of this demonstrative research is to verify and research the system operation method through load side (demand side) controlling.
Demonstration Project on Stabilized and Advanced Grid-Connection Photovoltaic Systems in Bandung, Indonesia, 2009 [80kW] Some technology is needed to allow a power supply to be steady with fewer fluctuations in the voltage and the frequency within a microgrid even if the microgrid becomes independent of the major power grid. With this in mind, a demonstration and development project was carried out to find solutions to technical problems that must be solved to provide a stable power supply in a microgrid.

Program Grant Aid for Environment and Climate Change

Cool Earth Partnership*1

Source: *1: Ministry of Foreing Affaires of Japan (MOFA) Home page

One of the pillar of International Environment Cooperation is assistance to developing countries that are aiming to achieve both emissions reductions and economic growth and working to contribute to climate stability.
Through this, Japan will cooperate actively with developing countries' efforts to reduce emissions, such as efforts to enhance energy efficiency. At the same time, we will extend the hand of assistance to developing countries suffering severe adverse impacts as a result of climate change.

REPUBLIC OF BURUNDI Centre Hospitalo-Universitaire de Kamenge, Bujumbura, 2012 [400kW]
KINGDOM OF CAMBODIA Phum Prek Water Treatment Plant, Phnom Penh, 2013 [779kW]
REPUBLIC OF COSTA RICA Miravalles, Bagaces, 2012 [1,000kW]
REPUBLIC OF DJIBOUTI Solar Power Street Lighting System, Djibouti, 2014 [1,584W/33sets]
LAO PEOPLE'S
DEMOCRATIC REPUBLIC Electricite du LAOS, Vientiane, 2012 [178kW]
GABONESE REPUBLIC Ministry of Foreign Affairs, Libreville, 2013 [70kW]
REPUBLIC OF DJIBOUTI Centre d'Etudes et de Recherche, Djibouti, 2012 [300kW]
LAO PEOPLE'S
DEMOCRATIC REPUBLIC Wattay International Airport, Vientiane, 2012 [236kW]
GABONESE REPUBLIC Omar Bongo University, Libreville, 2013 [130kW]
National Solar Power Project (CAMBODIA, completed in 2023)

Geothermal Development Technology

NEWJEC has developed geothermal power generation resources technology

Renewable energy is becoming more and more important as one of the means for reduction of greenhouse gas emission.
Geothermal energy is stable and environmental-friendly and it can contribute to sustainable development.

Measure geothermal plant in Iwate, Japan (Source: Ministry of Economy, Trade and Industry, Japan)

Process of Geothermal Development

Hot spring monitoring survey (all through the year)

Geological Survey: Develop geothermal model by integrating results from survey
- Manifestation & Alteration Survey
- Geochemical Survey
- Geophysical Exploration
Drilling and Well Logging / Testing
- Production test after drilling work in purpose of evaluating geothermal reservoir
- Evaluate and study on geothermal structure through collecting data of well logging, pressure temperature monitoring, etc.
Business Analysis
- Integrate the whole data obtained through the studies, geothermal model will be developed.
- Evaluate and investigate the power output an decide the power generation form (Flash/Binary)
EIA and Environmental Monitoring

Impact on ecosystem, landscape, air circulation, noise and water quality will be studied, as required.
Long Term Production Test
- Check the amount of the steam and evaluate the continuous geothermal development
Construction of the Plant
Commencement of Plant Operation

Geothermal and Solar Power

Dieng Geothermal Power Plant Project (INDONESIA, completed in 2021)
Hululais Geothermal Power Plant Project (INDONESIA, completed in 2026)

Power Transmission Lines and Substations

500kV Transmission Line Construction Project in Java-Bali (Klaten-Tasikmalaya-Depok Ⅲ), Indonesia Bid Evaluation, Construction Supervision and Management of about 579 km long 500 kV transmission lines with substations, financed by JBIC (Japan Bank for International Cooperation), for PLN (Indonesian State Power Enterprise), completed in 2005.
500kV Transmission Line and Substation Projects for 1,200 MW Ilijan Natural Gas Power Plant, the Philippines Detailed Engineering and Design, Preparation of Bid Specifications and Bidding Documents, Bid Evaluation, Construction Supervision and Management of 52 km long 500kV transmission lines with substations, financed by JBIC (Japan Bank for International Cooperation), for NPC (National Power Corporation) of the Philippines, completed in 2003.
Greater Mekong Sub-Region Transmission Project, 2009, Cambodia Transmission Line: 230kV, 2cct., 110km long
Substation (AIS): 230/115kV at Takeo and West Phnom Penh Review of feasibility study, detailed design and construction supervision for construction of transmission line, substations, SCADA system to connect with power system from Vietnam.
Transmission Line and Rural Electrification Takeo-Kampot Project, 2015, Cambodia Transmission line: 230kV, 2cct., 78km long
Substation (AIS): 230/115kV at Kampot, 230/115kV at Takeo Review of feasibility study, detailed design and construction supervision for construction of transmission line, substation (new one and expansion of existing one), SCADA system to supply power to Takeo and Kampot substations and therefrom to rural areas of the two regions.

Transmission Line

220kV Tarbela-Burhan Transmission Line Project (PAKISATAN, completed in 2024)
Upgrading National Power System Expansion Plan Capacity Development Project (PAKISTAN, completed in 2021)
National Power Transmission Network Development Project Phase 2 (MYANMAR, completed in 2023)
Java-Bali 500kV Overhead Transmission Line Project (INDONESIA, completed in 2019)
Capacity Development Project for Power Sector Planning (Myanmar 2019)
Phnom Penh City Transmission and Distribution Expansion Project Phase 2 (Ⅰ) (CAMBODIA, completed in 2025)

Disaster Prevention ･ Water Resource Management

Riverbank Protection Works in Lao PDR

Application of "Soda (Fascine)" Method for the Mekong River, 2014

Mechanism of Revetment Failure
Function of Foot Protection Works

Outline

In Laos, urgent need for protection against the erosion of the Mekong riverbank was demanded. Riverbank protection works with gabion boxes were actively carried out with foreign assistance in the 1990's, and yet some reaches suffered damage within a few years after completion, possibly due to inadequacy of the foundation and foot protection works.
The Soda (fascine) Mattress system was introduced and developed in the late 19th century, and was extensively used for groins and dyke-foot protection. Brushwood, twigs and stones are the principal materials of Soda Mattresses. These materials and relevant equipment are readily available locally within Laos, and accordingly the Soda Mattress system was adopted.

Distinctive Features of Soda Mattress

Soda Mattresses are so flexible that they can change shape and follow the riverbed changes, and are thus effectiveness for the riverbank foot protection. Materials are readily available locally. Soda Mattresses can be fabricated in various sizes according to the site terrain. Since native plants and stones are used, Soda Mattresses do not contaminate the natural environment, and their highly porous structure creates habitats for small fish.

Overseas Project