Technology / product information

Pumped Storage Hydropower Penstocks Exported to Australia – A Vietnamese Engineering Milestone Meeting European Standards

Pumped Storage Hydropower (PSH) is an energy storage technology that pumps water to an upper reservoir during periods of excess electricity and generates power during peak demand hours.
This system functions as a “giant energy battery” for the nation, helping stabilize the power grid and maximize the efficiency of renewable energy sources.

Within a pumped storage hydropower plant, the pressure pipeline (penstock) is regarded as the “heart” of the system, conveying water under extremely high pressure from the upper reservoir to the turbines. For this reason, the technical requirements for design, fabrication, and weld quality are exceptionally stringent. Lilama 10 is honored to undertake the fabrication of pumped storage hydropower penstocks for export to Australia.

What methods did Lilama 10 apply to manufacture pumped storage hydropower penstocks for export to Australia?

In this project, Lilama 10 implemented a fully integrated system of advanced welding procedures and non-destructive testing (NDT/TOFD), ensuring that every weld achieves outstanding tightness and mechanical strength.
All penstocks underwent post-weld heat treatment (PWHT) in dedicated furnaces, with precise temperature control throughout the entire cycle to effectively relieve residual stresses.

The entire production, inspection, and acceptance process strictly complied with European standard EN 15626:2018 (Level 1), in combination with ISO 11666:2018 and ISO 23279:2017, under the direct supervision of three European experts (ATB, FGJV, SHL).

Lilama 10’s Manufacturing Capability – A Solid Foundation for Large-Scale Structural Fabrication

With more than 60 years of experience in the fabrication and installation of energy projects, Lilama 10 Joint Stock Company owns a large-scale steel structure manufacturing system capable of executing complex projects for both domestic and international markets.

Steel structure fabrication capabilities include:

Processing of thick plates up to 110 mm, with rolling width up to 3 meters, suitable for heavy structures and pressure equipment.

Overhead cranes and crawler cranes with lifting capacities of up to 250 tons, supporting the handling of large assemblies.

Modern equipment: 3-roll plate bending machines MG (Italy), 600-ton hydraulic press brakes, shot blasting chambers, edge grinding machines, laser cutting machines, and more.

A team of welders certified to ISO 3834 and EN 1090 (EXC3), proficient in thick-plate structural welding, pressure welding, and high-precision welding.

A closed-loop production process: structural fabrication – welding – shot blasting – painting – installation, ensuring consistent quality and optimized project schedules.

The pumped storage hydropower penstock project exported to Australia not only affirms Lilama 10’s European-standard manufacturing capability, but also demonstrates that Vietnamese engineers have reached international technical benchmarks.

With the spirit of “Manufactured in Vietnam – Global Quality,” Lilama 10 continues to maintain its pioneering position in mechanical fabrication and the energy industry, bringing Vietnamese engineering excellence to the global market.