NEWSLETTER #6 _ September 2023


Dear Reader,


In the September edition of the Hydro4U Newsletter, we are happy to share the main outcomes of the Water-Energy-Food-Nexus trade-offs analysis that took place at our demonstration site in Shakhimardan, Uzbekistan.

In addition, a new 'EVO' turbine series has been developed by Global Hydro, optimising and adapting existing turbines to newest requirements in the fields of environment, economy and maintenance. 

Simultaneously, a geo-localized analysis of the agriculture water withdrawal in Central Asia has been conducted by CARTIF, recognizing the effects of water consumption on the Hydropower potential and highlighting the importance of reintroducing a special focus on the Water-Food-Energy-Climate Nexus. 

Furthermore, researchers from BOKU, together with a team of international experts, have identified and gathered a selection of highly important questions that need to be addressed when aiming at improving the sustainable management of peak-operating hydropower.

Besides that, the LIFE NEXUS project, coordinated by CARTIF, aims at showcasing the potential of water networks in becoming a source of renewable energy, providing  the first inventory of potential locations and existing installations.

For further information on upcoming conferences and exhibitions on water management and smart solutions, please have a look at our events section.


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We hope you enjoy reading!


Bertalan Alapfy
Hydro4U Coordinator
Technical University of Munich
Chair of Hydraulic and Water Resources Engineering

Special topic: The main outcomes of the Water-Energy-Food (WEF) Nexus trade-offs analysis for small-scale hydropower installations at the Shakhimardan demonstration site

Authors: Oyture Anarbekov, Saida Usmonova, Abdikhamid Urazkeldiyev, Nasiba Kamilova (IWMI) and Hassaan F. Khan (Tufts University)

The team of the International Water Management Institute (IWMI) conducted a WEF Nexus trade-off analysis for small-scale hydropower installations at the Shakhimardan demonstration site in Uzbekistan. 

The Shakhimardan demonstration site, located in Uzbekistan, has been identified as a potential location for a small-scale hydropower installation. The site currently faces electricity shortages, particularly during the winter season, leading to the use of coal for heating. The proposed hydropower installation on the Koksu River aims to address these energy challenges and improve the region's electricity supply.

The proposed small hydropower project at Shakhimardan is expected to generate 11.5 GWh of hydropower annually, with an economic value of US$0.57 million. The local community will have the choice between two options for integrating electricity generated from SHP: a) integrating it into the existing electrical grid sourced from Kyrgyzstan, or b) operating as an independent autonomous grid provider. One possibility is to supply the electricity needs of the Uzbek territory and nearby settlements in the Kyrgyz territory, potentially making the Uzbek enclave independent in terms of electricity supply. 

In addition, the proposed SHP project will operate as a run-of-river project without a storage component. This mode of operation ensures that there will be no significant impact on the quantity and timing of water availability for downstream users. Therefore, there are no direct trade-offs related to the Water-Energy-Food nexus concerning water availability under existing and future streamflow conditions.

It is worth noting that the major agricultural water users downstream of the Uzbek enclave are also in Uzbekistan's Fergana district, while the downstream use in the Kyrgyz territory is relatively minimal. This implies that the SHP project's operation will not significantly affect agricultural water availability in the region.

However, there are indirect impacts associated with the availability of electricity from the proposed SHP project. The local population has expressed a desire to utilize part of the generated electricity for lift irrigation in the enclave. An additional 70 hectares of land have been identified for irrigated agriculture, in addition to the existing 350 hectares. 

To meet this irrigation requirement, an estimated 2-5 GWh of energy would be needed, based on standard energy intensities for lift irrigation in Central Asia. Groundwater pumping is not feasible in this area, making reliable electricity crucial for supporting agricultural development.

Furthermore, the availability of reliable electricity may also contribute to the revival of regional tourism, which has declined significantly since 2005. Overall, the analysis highlights the importance of considering the WEF nexus in decision-making processes for sustainable development.


Map of the Shakhimardan River Basin, Uzbekistan (Photo credits: IWMI)

News & Blogs
Hydro4U Blogs

Kaplan EVO - Rethinking the Kaplan Turbine with the bigger picture in mind

In nature, evolutionary changes usually take place incrementally, although their effects can be enormous. While developing the new ‘EVO’ turbine series, Hydro4U project partner Global Hydro Energy GmbH subjected their Pelton, Francis, and Kaplan turbines to a complete rethink, adapting and optimising them to meet the very latest requirements in terms of environmental protection, economic efficiency and ease of maintenance.


Towards including transboundary Water-Food-Energy-Climate Nexus considerations in the decision making for new Small Hydro Power projects in Central Asia - Hydro4U

In Central Asia, allocation conflicts between large-scale hydropower (HP) in the upstream countries and irrigation in the downstream occur regularly and mostly across complex international borders, especially during water scarce years and low storage conditions. With an increasing attention on the Sustainable small-scale hydropower production, the Water – Food – Energy– Climate (WFEC) Nexus is now under renewed focus in the Region.


Global Experts identify Top 100 Questions to improve sustainable Management of Hydropeaking

Hydropeaking, the rapid and frequent changes in river flow to optimize hydropower operation, has gained significant attention due to its ecological impacts and its role in integrating renewable energy production with demand. As the global commitment to renewable energy grows, understanding and mitigating the effects of hydropeaking becomes paramount.

News from other projects & initiatives

LIFE NEXUS: What if urban water networks could become a source of renewable energy?

The nexus of water and energy, two vital resources, is becoming critical in cities due to demographic movements, economic growth and an inexorable increase in demand. Water scarcity and the need for low-carbon solutions make it a challenge to deliver urban water services without increasing their impact on the environment.





Communication and Dissemination Secretariat

Steinbeis Europa Zentrum

Charlotte Schlicke / Sofija Kovacic



Project Coordinator

Technical University of Munich

Bertalan Alapfy


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