Texmaco Rail & Engineering Limited has completed the erection and commissioning of hydro-mechanical systems for the 2,000 megawatt Subansiri Lower Hydroelectric Project located on the Arunachal Pradesh–Assam border. The work forms a critical part of the commissioning process for the project’s generating units and enables the transition of multiple units towards commercial operations.
Texmaco Rail acted as the sole hydro-mechanical contractor for the project. The company was responsible for the end-to-end execution of the hydro-mechanical package, including design, manufacture, supply, erection, testing and commissioning of the systems.
Texmaco’s scope of work covered hydro-mechanical systems that are essential for water regulation and turbine operation in a large hydropower station. These systems are required to ensure controlled water flow, operational safety and the integration of civil and electro-mechanical components during commissioning. Completion of these systems is a prerequisite for bringing individual units online.
The Subansiri Lower Hydroelectric Project has an installed capacity of 2,000 megawatts, comprising eight units of 250 megawatts each. Alstom (now GE Vernova) provided the 250MW Francis turbines for the power plant. The project uses Francis turbines, which are the most widely used type of hydro turbine for medium-to-high head applications globally.
The project developer, NHPC Limited, has declared the commercial operation date for the first generating unit, with three additional units already commissioned. The remaining four units are scheduled for phased commissioning through the 2026–27 financial year.
“Completing the Hydro-Mechanical systems for the Subansiri Lower Hydroelectric Project is a proud moment for Texmaco. This achievement demonstrates our leadership and unmatched expertise in delivering complex infrastructure for large-scale hydropower projects. We are honoured to contribute to India’s renewable energy goals and remain committed to delivering excellence in every project we undertake,” said Sudipta Mukherjee, Managing Director of Texmaco Rail & Engineering.
The Subansiri Lower project is expected to contribute a substantial volume of renewable electricity to the national grid once fully operational. Hydropower projects of this scale play a role in providing base-load generation and supporting grid stability as renewable capacity expands.
The company did not disclose the financial value of the hydro-mechanical contract in its filing.
Texmaco Rail & Engineering Limited is a listed company and part of the Adventz Group. It operates across three business segments comprising freight cars, rail infrastructure and green energy, and infrastructure-electrical, with manufacturing facilities in West Bengal, Gujarat and Chhattisgarh.