Reversible pump-turbines
Customized, highly reliable solutions for advanced pumped storage and grid stabilization.
Litostroj Power provides state-of-the-art pump-turbines designed to meet the rigorous demands of modern energy storage. As renewable energy integration demands highly flexible grid support, our reversible machines deliver exceptional responsiveness, capable of achieving full operation within less than 90 seconds.
From initial CFD hydraulic design to final installation, controls, and unit tuning, we deliver complete turnkey solutions perfectly optimized for your specific project parameters.
Operational parameters
Reversible Francis pump-turbines
Engineered for medium to high-head pumped storage applications, the Reversible Francis unit operates as both a turbine for power generation and a pump for water storage. Litostroj provides tailored solutions across a broad range of heads, capacities, and operating requirements.
Technical parameters
Heads: From 20 m to 600 m.
Outputs / Inputs: From 5 MW to 350 MW.
Runner / Impeller Diameter: Up to 6,000 mm.
Core specific features
Wide operation flexibility
Advanced hydraulic design minimizes pressure pulsations and flow instabilities, enabling reliable operation across a broad range of generating conditions while maintaining high efficiency and operational stability. Our reversible trubines are compatible with fixed-speed and variable-speed configurations, supporting increased operational flexibility and enhanced grid integration
Fast grid response and variable-speed ready
Designed to meet the demands of modern power systems, Reversible Francis units provide rapid load adjustment capabilities and support essential grid stabilization services. Litostroj Power solutions are compatible with both fixed-speed and variable-speed configurations, enabling enhanced operational flexibility and seamless integration of renewable energy sources.
Double-regulated Deriaz pump-turbines
Engineered for low-head pumped-storage applications with significant head variations, the Double-Regulated Deriaz Pump-Turbine combines adjustable guide vanes and runner blades to deliver exceptional operational flexibility in both generating and pumping modes.
Technical parameters
Heads: From 20 m to 85 m.
Runner diameter: Up to 7,000 mm.
Blade configuration: Equipped with up to 10 variable-pitch blades runners
Core specific features
Double regulation flexibility
Independent adjustment of guide vanes and runner blades enables efficient operation across a broad range of heads and outputs, providing exceptional flexibility in both generating and pumping modes.
Flexible pumping operation
Due to their streamlined physical footprint and reduced civil engineering requirements, horizontal Francis units are highly competitive in price.
References
Our Francis turbines on the grid
Core features
Reversible pump turbines advantages
Optimized hydraulic design, fast grid response, and proven pumped-storage performance make Reversible Pump Turbines a cornerstone of modern energy storage. Available in both fixed-speed and variable-speed configurations, they provide the flexibility and reliability required by today's evolving power systems.
Advanced hydraulic design
Building on more than a century of hydropower experience, Litostroj combines proven engineering expertise with state-of-the-art CFD simulations and model testing capabilities. This approach enables the development of optimized hydraulic designs delivering high efficiency, reliable performance, and predictable operating characteristics.
Wide operating flexibility
Designed to operate efficiently across a broad range of heads, outputs, and load conditions, Reversible Francis turbines provide the flexibility required for energy storage, grid balancing, and reliable power generation.
Targeted equipment optimization
Our expertise extends beyond new installations to the precise upgrading of existing core equipment. By designing new runners, guide vanes, and modifying stay vanes, we significantly increase efficiency, power output, and operational reliability while keeping your overall investment expenses to a minimum.
Ready to build your next powerhouse?
Whether you are planning a greenfield installation or need to uprate a century-old turbine, our engineering teams are ready to architect your solution.