Our area of expertise in hydroelectric
The hydroelectric sector is a dynamic and challenging industry. Contributing to the development and construction of this sector, which produces clean electricity, is a mission that Alco-TMI is proud to be a part of.
For over 30 years, Alco-TMI has been active in the hydroelectric industry. Over time, the company has developed specialized expertise in this field through the completion of numerous projects, including the construction of new plants and the refurbishment of several others. Alco-TMI specializes in mechanical work and the supply and installation of piping, working on projects for Hydro-Québec, major turbine manufacturers, and as a subcontractor for general contractors.
Depending on the scope of the work, Alco-TMI is able to partner with complementary specialists and establish the appropriate team structure to meet the project’s requirements.
Through its division Alco-TMI Fabrication Inc., the company supplies piping, pipe spools, pressure vessels, tanks, and welded components that are installed in hydroelectric plants across North America.
Hydro services

Power plant work
Alco-TMI is a qualified and active supplier for auxiliary services installation work at hydroelectric power plants. Additionally, the company supplies and installs, as a subcontractor, the mechanical systems and piping associated with the turbine-generator unit for major turbine manufacturers.
Here is a list of the mechanical systems we handle:
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- Raw water and cooling water systems
- Fire protection systems
- Potable water systems
- Service water systems
- Turbine group drain and fill systems
- Clear water drainage systems
- Wastewater drainage systems
- Oil drainage systems
- Filtered water systems
- Liminometer and piezometer systems
- Compressed air – low pressure
- Compressed air – high pressure
- Brake air systems
- Lubricating and hydraulic oil handling
- HVAC (Heating, Ventilation, and Air Conditioning)
Our qualified workforce ensures high-quality work is delivered on time. Our dedicated quality assurance team verifies that all work complies with the many requirements of our clients.

Pressure vessels and oleopneumatic tanks
Alco-TMI has extensive expertise in the design and fabrication of pressurized tanks for the hydroelectric sector. We also provide turnkey services, including the installation of instrumentation and various accessories required for complete system functionality.