ANDRITZ Hydro business division key visual

ANDRITZ Hydro in Japan, Tokyo

ANDRITZ has restarted Hydro business in Japan.

In Japan, large-scale hydropower showed development from the early to latter 1900s and accounted for approximately 80% of the total electricity generation by 1952, becoming the main source of power.

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News April 2023

Tashirogawa Daiichi, Japan
Refurbishment of Horizontal Twin Pelton turbine unit

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However, due to the FIT (feed-in tariff) program which was brought into effect after the Great East Japan Earthquake in 2011 and the declaration of carbon neutrality 2050 by the Japanese prime minister, the use of renewable energy has propelled in Japan. However, as much as hydropower generation is known to be the most clean and green energy, there is a lack of suitable locations for large-scale hydropower as well as the issue of high cost for small-medium hydropower in Japan, slowing down the movement. But with the help of government initiatives to move the country toward its green goals, the movement, though slow, is steadily on-going and will continue to increase.

During the above time period, the former Escher Wyss (now ANDRITZ Hydro GmbH) delivered more than 400 turbines to the Japan market, making the basis for ANDRITZ to be able to restart its Hydro business in Japan when the timing was right. Since the Great East Japan Earthquake in 2011, ANDRITZ K.K., the 100% subsidiary of the ANDRITZ Group, located in Tokyo, Japan, has been gradually expanding its sales activities for hydropower generation systems, following its biomass boilers business, as an option for renewable energy. With the support of the feed-in tariff system, the first unit of the hydroelectric power generation business was delivered and commercial operation started in 2017 as ANDRITZ K.K., although it was a small Pump used as Turbine power generation system which generated just 45 kW. Following this project, ANDRITZ Hydro's proposal activities for products and rehabilitation for large/ medium and small hydropower generation for the Japan market intensified from 2019, and the second and third Pumps as Turbines were delivered in 2019, with their commercial operation starting in 2020. In 2021, the order for the fourth Pump used as Turbine was received, and the orders for the first and second Francis turbines for Compact Hydro were also received. The Japanese hydropower market slowly opened its doors once again to ANDRITZ, a foreign company, and ANDRITZ K.K. has found the path to successfully restarting the hydropower business in the Japan market.

References & Highlights


Number of turbines

Manufacture by



Horizontal Twin Pelton (19MW) (On-going)





Horizontal Francis Turbine (3.8MW) (On-going)

Horizontal Francis Turbine (2.5MW) (On-going)

Horizontal Francis Turbine (2.3MW) (On-going)





Vertical Francis Turbine (19MW) (On-going)

Horizontal Francis Turbine (870kW) (In operational)

Pump used as turbine (300kW) (On-going)




Pump used as turbine (54kW) (In operational)

Pump used as turbine (100kW) (In operational)



Pump used as turbine (45kW) (In operational)

Restarted Hydro business in Japan
in 2017 as ANDRITZ Hydro



VA Tech

1990 ies


Bouvier Hydro / VA Tech

1960 ies


Escher Wyss

1950 ies


Escher Wyss

1930 ies


Escher Wyss

1920ie s


Escher Wyss

1910 s


Escher Wyss

1900 s


Escher Wyss

ANDRITZ Hydropower at a glimpse

ANDRITZ Hydropower is one of the world's leading suppliers of electromechanical equipment and services for hydropower stations in the dynamically growing global renewable energy market. Based on 185 years of experience and a global installed capacity of 489 gigawatts, we offer innovative solutions for new and existing hydropower stations, from small hydropower to large-scale plants. State-of-the-art digital solutions, comprehensive services for the operation and maintenance of entire hydropower plants, and turbo generators for the thermal industry complete the portfolio.

  • More than 185 years of turbine experience 
  • Over 33,200 turbines (more than 489,000 MW) installed
  • Complete range up to more than 800 MW
  • Over 135 years electrical equipment experience 
  • Leading in service and rehabilitation
  • More than 25 GW total​ installed capacity of​ Compact Hydro units
  • ANDRITZ Hydro company presentation, en
    Company presentation PDF : 7.5 MB
  • Service and rehabilitation PDF : 5.3 MB
  • Synchronous condensors PDF : 3.2 MB

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  • ANDRITZ Hydro company presentation, en
    Company presentation PDF : 7.5 MB
  • Small and Mini Hydropower Solutions PDF : 6.4 MB
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