Decision support and Replication tools

Driving Sustainable Energy Policy Forward

1   The Hydro4U web-based Decision Support Tool

The web-based Decision Support Tool (DSS), developed by the Hydro4U partner BOKU, supports evidence-based planning for hydropower development. In the data-scarce regions of Central Asia, limited access to reliable information often hinders informed decision-making. The DSS addresses this challenge by integrating hydrological, technical, and ecological data into an online geographic information system (GIS). This allows users to identify optimal hydropower sites and scenarios while ensuring that planned projects align with environmental objectives and regional energy strategies. By enabling transparent and data-driven planning, the tool contributes to policies that foster renewable energy development and climate resilience.

Key features include:

• Hydropower potential: The DSS integrates results from a GIS-based assessment of hydropower potential across all five Central Asian countries. Users can interactively explore estimated hydropower potential at the level of individual river stretches.

• Sediment submodule: Hydropower infrastructure can disrupt sediment continuity, potentially causing downstream sediment deficits, while excessive sediment loads can lead to reservoir sedimentation and equipment abrasion. The DSS incorporates findings from a regional sediment study, providing segment-level information on sediment transport to support sustainable hydropower design.

• Ecological data: Sustainable hydropower development requires a thorough understanding of river ecosystems. Throughout the project Hydro4U, a range of site-specific ecological data has been collected. These datasets together with publicly available datasets on river ecology are integrated into the DSS to further enhance environmentally responsible decision-making.

The tool is currently under development but will be accessible via this page.

Two screen shots of the tool below; (c) picture credits: BOKU

2   The Hydro4U Replication Guideline Tool | Hydro4Planners

The Hydro4Planners Tool, created by CARTIF, accelerates the sustainable deployment of small hydropower (SHP) in Central Asia by providing a comprehensive, evidence-based framework for project planning and decision-making considering the Water-Energy-Food Nexus. Developed within the EU-funded Hydro4U project, the tool integrates technical, environmental, socio-economic, and governance dimensions to ensure that new SHP projects are both effective and context-sensitive.

Key features include:

• Multi-Scale Impact Assessment: Evaluation of sub-basin and basin-wide impacts using contextual indicators covering technical, ecological, socio-economic, and transboundary governance aspects.

• Decision Support and Scenario Analysis: Web-based decision support tool enabling basin-wide scenario planning and comparison of alternative SHP development strategies.

• Data-Driven and Integrated Analysis: Use of GIS data, system dynamics modelling, and stakeholder input to support transparent, replicable, and sustainable planning, including WFEC nexus considerations.

• Climate and Resource Assessment: Assessment of climate change impacts on water resources, combined with land-use and water demand analysis.

• Replication and Upscaling Roadmap: Practical guidance based on lessons learned from demonstration sites and feasibility studies, supporting replication and scaling-up of SHP initiatives.

By combining technical innovation with regional cooperation and sustainability criteria, the Hydro4Planners Tool empowers policymakers, investors, and practitioners to scale up small hydropower in a way that balances energy needs, environmental protection, and socio-economic benefits across Central Asia.

The primary benefit of this tool is its ability to enhance regional energy security and sustainability by enabling strategic planning and implementation of SHP projects that are both environmentally responsible and economically feasible.

The tool offers significant advancement in managing transboundary water resources, mitigating conflicts, and promoting regional stability through integrated, data-driven decision-making.

The tool is currently under development but will be accessible via this page.

Figure below: Flow of data and generation of information for specific stakeholder groups  (c) CARTIF

Three screen shots of the tool below; (c) picture credits: CARTIF

The user will be able to select the area (Aral Sea basin, Amu Darya river basin, Syr Daria rover basin or sub-basins) and to simulate scenarios for:

• Climate change
• Hydropower development
• Other Water-Food-Energy (WFE) related policies

The user will visualize the impact of previous decisions on selected indicators as:

• power generation,
• water consumption,
• GHG emissions,
• WEF security.

3   Digital Tools for Smarter Water and Crop Management | Count4D & CropMapper

Count4D and CropMapper are complementary digital tools, developed by Hydro4U partner hydrosolutions (HSOL), to modernise water accounting and irrigation management, particularly in data-scarce and administratively complex contexts such as Central Asia. Together, they replace fragmented, paper-based workflows with an integrated, transparent, and efficient digital system that supports evidence-based decision-making across all levels of water governance.

• Count4D is a web-based water accounting and management platform co-designed with water authorities and local stakeholders. It enables structured planning, allocation, accounting, billing, and reporting of water use – from district authorities down to individual farms – while reducing administrative burdens and errors through automated workflows, role-based access, and multi-language support.

• CropMapper, embedded within the Count4D ecosystem, enhances the system with satellite-based remote sensing. It automatically identifies crop patterns and estimates irrigation water demand, providing up-to-date, objective data on land and water use. By integrating Earth observation data directly into water management processes, CropMapper strengthens transparency, traceability, and trust among institutions and water users.

Together, Count4D and CropMapper deliver a scalable, modular solution that supports sustainable water management at the Water–Food–Energy nexus, improving operational efficiency while enabling more resilient and accountable use of water resources.