Tajikistan – FutureWater

A consortium of international development finance institutions led by World bank and including Asian Development Bank (ADB) have signaled their intention to support the financing of the Project. ADB is committed under Strategy 2030 operating priority 3 to support its Developing Member Countries to ensure a comprehensive approach to build climate and disaster resilience. The climate risk management approach of the ADB aims to reduce risks resulting from climate change to investment projects by identifying climate change risks to project performance in the early stages of project development, and which will support decision-making to incorporate the most appropriate adaptation measures in the design.

An initial climate risk assessment has been completed for the Rogun HPP project including assessments of natural hazards, hydrology, sedimentation, and the impact of climate change projections on project performance, however downstream resource implications have not been assessed. In this project FutureWater addresses wider system-level adaptation needs across the Amu Darya basin due to increased water use demand during the Rogun HPP reservoir filling period, climate-driven change to water supply and demand, and identification of potential supply-demand gaps. A combination of hydrological and water allocation modeling will form an evidence-base to inform recommended adaptive measures for the design and operation of Rogun HPP and for wider water-use sectors where required.

FutureWater undertakes analysis to understand projected climate change driven changes in water supply in Rogun HPP upstream areas, and water demands in downstream areas and the wider Amu Darya basin, with a focus on identifying the potential for a supply-demand gap throughout the Rogun HPP reservoir filling period to 2040. Where a risk of a supply-demand gap is identified FutureWater provides recommended measures that can increase water efficiency in the competing demand use sectors with the overall aim of meeting demand across the different scenarios and in compliance with cross-boundary resource sharing agreements.

Specifically, FutureWater addresses following topics:

Model projected water supply and demand in the Amu Darya river basin by utilizing a WEAP model developed for water supply, demand and allocation analysis, and accounting for climate change, Rogun HPP reservoir filling schedule, changing hydrology patterns and changes to downstream water demand from irrigation and other relevant end-use demands, where relevant.
Analyze the potential for water resource supply-demand gap to 2040 for a range of climate scenarios that capture potential future pathways aligned to government plans and policies and climate change, where relevant.
Recommend required water efficiency measures, where a risk of a supply-demand gap is identified under the the limits set by the cross-border water resource sharing agreement, so as to mitgate the risk with high-level cost estimate where capital investment is required.

A consortium of international development finance institutions led by World bank and including Asian Development Bank (ADB) have signaled their intention to support the financing of the project. The climate risk management approach of the ADB aims to reduce risks resulting from climate change to investment projects by identifying climate change risks to project performance in the early stages of project development and incorporating adaptation measures in the design.

For this project FutureWater undertakes work to analyze climate change risk faced by Rogun HPP and the interaction between climate change, climate-responsive HPP operation, and downstream water resource demand as a 2nd phase following initial due diligence of ADB on available project documentation. The detailed tasks entail:

Analyze downscaled CMIP6 General Circulation Model (GCM) to understand projected changes in precipitation and heat trends across climate change scenarios in the Rogun dam catchment area. This includes assessment of indicators for likelihood of heatwave and extreme precipitation events.
Undertake an estimate of the Probable Maximum Flood level in the Rogun dam catchment through event-based simulation modelling factoring in changes to projections for extreme precipitation events and changing hydrological processes due to climate change.
Estimate the likelihood of annual discharge change based on climate change projections to understand the likelihood of Rogun HPP project economics being negatively affected by declining capacity factor driven by climate change impacts on hydrology.
Conduct a first order analysis of present and future glacial lake outburst flood risk based on review of studies from reputable sources.

With the results of this analysis, ADB can update earlier climate risk studies and guide investment decisions.

The Central Asia Regional Economic Cooperation (CAREC) Program is a partnership of 11 countries from Central Asia, South Asia, the Caucasus, as well as Mongolia and the People’s Republic of China and works to increase regional cooperation to help the region shift to low carbon development pathways and build resilience against climate induced hazards. ADB hosts the CAREC secretariat and helps to facilitate projects that deliver regional benefits.

In 2017, CAREC introduced agriculture and water as a new pillar under the CAREC 2030 strategy to provide a conducive and trusted platform to foster regional cooperation and integration on water security. The water pillar was established in 2020 and its scope was devised in 2022. Since then, a number of activities and consultations with CAREC countries have been undertaken including provision of a long list of potential regional projects that could be financed by ADB.

In this project prefeasibility studies will be conducted for three selected priority projects:

Climate change adaptation through improving irrigation efficiency in the Aral Sea Basin
Climate Resiliency of Bakhri Tojik reservoir for improved irrigation and energy supply
Joint Automated Water Metering System in the Aral Sea Basin

The prefeasibility studies entail:

Technical, financial, economic, poverty and social analysis.
Environment, social, and indigenous people’s safeguards assessments.
Climate change assessments.
Financial management and procurement capacity assessments; and
Institutional set-up and project implementation arrangements.

For these prefeasibility studies FutureWater conducts the climate risk assessment.

Golovnaya hydropower plant is located 80 kilometers south of Dushanbe and has an installed generation capacity of 240 MW, making it the fourth largest hydropower plant in Tajikistan, after Nurek (3,000 MW), Sangtuda 1 (670 MW), and Baipaza (600 MW). Construction began in 1956, with the first unit commissioned in 1962. Since then, except for one unit, the plant has not undergone significant modernization or improvements to maintain its original performance in terms of efficiency, reliability, safety, or to reduce operation and maintenance costs. Consequently, most of the main electro-mechanical and hydro-mechanical equipment is now in poor condition.

The current project, for which FutureWater conducted a climate risk assessment (CRA), aims to include the rehabilitation of generation Unit 4 of the hydropower plant, which was not part of the ongoing efforts. Unit 4 is expected to add approximately 49 MW to the overall plant capacity. The CRA report evaluated the climate risk and adaptation prospects of the additional project and provides recommendations to enhance its adaptability and climate resilience, further securing this investment.

FutureWater supported this project by conducting a comprehensive review of climate and climate change research, studies, reports, and data related to the Golovnaya hydropower plant. Key findings include: (i) the project should be analyzed within the context of the entire Vakhsh River basin and system; (ii) the operations of upstream reservoirs and hydropower facilities will have a greater impact on Golovnaya than climate change itself; (iii) climate change will affect upstream facilities and thereby indirectly impact Golovnaya. The overall conclusion was that for the specific project (rehabilitating hydropower turbines), the climate risk is relatively low.

FutureWater’s impact was contributing to ensuring that the Golovnaya rehabilitation project will be climate-resilient, thereby securing the investment.

The Rogun HPP is a project that will have a large reservoir capable of providing seasonal regulation. It will supply firm energy during the winter months when demand for electricity is the highest in Tajikistan and will allow for exports of clean electricity to the Central Asia (CA) region and beyond. The Project could play the role of a balancing plant for Tajikistan and the broader Central Asia region to help integrate significant new solar PV and wind generation capacity into the network.

The Rogun HPP was initially designed in the 1970s as part of the development of the Vakhsh River cascade for integrated economic development in the Central Asian republics of the Soviet Union. Construction of Rogun HPP began in 1982 and was then interrupted by political changes resulting from the independence of Tajikistan and the other Central Asia countries. The World Bank in 2011 provided funding to the Government of Tajikistan to conduct a Technical and Economic Assessment Study and an Environmental and Social Impact Assessment. The Government of Tajikistan proceeded with construction without development partners’ involvement. In 2023 a technical assistance grant was approved by World Bank to improve the financial and commercial frameworks of the Rogun HPP Project and to enhance its technical, environmental and social sustainability.

ADB is committed under Strategy 2030 operating priority 3 to support its Developing Member Countries to ensure a comprehensive approach to build climate and disaster resilience. The climate risk management approach of the ADB aims to reduce risks resulting from climate change to investment projects by identifying climate change risks to project performance in the early stages of project development and incorporating adaptation measures in the design.

FutureWater will undertake a climate risk and vulnerability assessment for the Rogun HPP project. Technical studies assessing Rogun HPP’s exposure to natural hazards, hydrology, sedimentation, and
the impact of climate change projections have been completed. These findings are incorporated into the detailed technical design of the project. FutureWater will review all existing studies and any
related studies from reputable sources and consolidate the findings into a climate risk and vulnerability assessment (CRVA) for the project. FutureWater will ensure the methodological approach and technical rigor of the existing evidence base is sufficient, flagging potential insufficiencies which may have a material impact on the conclusions of the assessments. Related tasks to support due diligence will also include a Paris Alignment Assessment in accordance with ADB guidelines, a climate financing accounting estimate, a lifecycle greenhouse gas emission estimate, and Climate Change Assessment summarizing the CRVA findings.

The project prepares robust climate mitigation and adaptation pipelines aligned with the Paris Agreement and responsive to DMCs climate change priorities. The TA will support interventions on departmental, sectoral and country levels with key activities including development of a regional strategy, upstream climate assessments, climate pipeline development, government dialogues and capacity building. As part of this project, FutureWater conducts a regional climate risk assessment for ten countries. This includes an assessment of baseline and future climate hazards, exposure and vulnerability and addressing sectoral impacts and adaptation options for a wide range of sectors. In addition country profiles summarizing climate risks for the ten countries are generated. The reginal climate risk assessment feeds into the climate strategy.

Countries in Asia and the Pacific region are significantly exposed to disaster risks from various hazards and are on the frontline of a climate emergency. Studies suggest that 80% of the globally affected people belong to the Asia-Pacific region, thus emphasizing the critical need for an effective multi-hazard EWS.

EWS, a cost-effective tool for saving lives and reducing economic losses, is particularly crucial for frequent and hazardous weather, water, and climate events. However, despite advancements in the four EWS components, major gaps persist, with implementation lagging and limited coverage in frontline countries, including least developed countries (LDCs) and small island developing states (SIDS). As of 2021, only 50% of countries in Asia and the Pacific reported having multi-hazard early warning systems (MHEWS), emphasizing the need for support.

The culmination of these efforts will be encapsulated in a scoping report, documenting the results of the project, including consultations with key partners and stakeholders during the Regional Workshop on Increasing Investments in Early Warning Systems, to be held in February 2024 in Bangkok, Thailand. The study will offer a comprehensive summary of the EWS scoping, encompassing the policy and institutional landscape, status, initiatives, and investments, as well as residual gaps for regional and national EWS programming in selected DMCs. Additionally, this study will provide guidelines for the implementation and operationalization of the proposed EWS facility, along with initial investment concept notes based on EWS priorities at regional and/or national levels. This holistic approach aims to contribute substantively to the strengthening of EWS capacities, fostering resilience in the face of increasing disaster risks across the region.

Tajikistan has initiated the Water Sector Reform Program, aiming to enhance water resource planning and allocation across different river basin zones. However, the development of a comprehensive integrated water resources management plan is hindered by a lack of data on snow and glacier melt. The impact of climate change on the cryosphere, including changes in glacier ice storage, snow dynamics, and evaporation rates, further compounds the issue by affecting high mountain water supply and altering runoff composition and overall water availability.

To address this challenge, the “Integrated Rural Development Project” (IRDP), implemented by GIZ as part of the bilateral development project “Towards Rural Inclusive Growth and Economic Resilience (TRIGGER),” focuses on enhancing the value of agricultural production in Tajikistan. As part of the project, the Water Output (Output 1.5) provides technical support to the Ministry of Energy and Water Resources (MEWR) in the Zarafshon River Basin and at the national level. This support includes technical advisory services, capacity building, training measures, and improving access to irrigation water for small-scale farmers. Local relevant stakeholders foreseen as project beneficiaries are MEWR, Zarafshon River Basin (Zarafshon RBO), Center of Glacier Research (CGR), the Institute of Water Problems (IWP) and the Agency for Hydrometeorology, Tajikistan.

The project has three core components: data collection, modeling, and capacity building, as outlined below. Data collection will include both field monitoring campaigns using UAVs and retrieving historical records which could either be past in-situ observations, remotely sensed or modelled data. This comprehensive dataset will be used to set up, calibrate and validate Spatial Processes in Hydrology (SPHY) and WEAP models. The project will use the model-chain to provide the probabilistic flow forecast (likelihood to be in dry, medium, or wet conditions) using the seasonal meteorological forecast data. The SPHY-WEAP model-chain will then be deployed in the Zarafshon RBO-based servers. The results of the model-chain will be used to develop a comprehensive policy guidance note, proposing strategies and a way forward for developing a robust climate-resilient integrated water resources management plan that will ensure both water availability and accessibility across the river basin. Capacity building is a critical component of the project to ensure its sustainability and upscaling. Therefore, six capacity-building trainings (online and in-country) targeting different technical areas of the project will be organized throughout the project.

By undertaking these efforts, we aim to contribute to the successful implementation of Integrated Water Resources Management in Zarafshon and Tajikistan.

Recently, the Central Asia Regional Economic Cooperation (CAREC) Program introduced agriculture and water as a new cluster in its strategic framework. Recognizing the complexities of the water sector and the existing landscape of cooperation activities, the strategic framework proposes a complementary approach that uses the strengths of CAREC to further promote dialogue on water issues. A scoping study was commissioned, supported by the Asian Development Bank (ADB), to develop a framework for the Water Pillar for further consideration by the governing bodies of CAREC. It was agreed that the initial focus of the Water Pillar should be on the five Central Asian states with consideration given to expanding to other CAREC member countries over time.

The objective of the study is to develop the scope of a Water Pillar Framework that includes a roadmap of national development interventions for each of the five Central Asian Republics that responds to the prevailing challenges and opportunities in water resources management.

The framework will be derived from three specific outputs:

Output 1: Projection of future availability and demand for water resources for the Central Asia region up to 2050 including implications of climate change.
Output 2: Identification of future water resources development and management opportunities in the form of a sector specific framework for water resources infrastructure taking into consideration sustainability issues through a comparative assessment of cost recovery mechanisms and operation and maintenance (O&M) practices.
Output 3: Preparation of a framework for policy and institutional strengthening that addresses common themes and issues related to national water resources legislation and the capacity and knowledge development needs of water resources agencies with an emphasis on economic aspects and sustainable financing.

For this work, FutureWater provides key inputs on the climate change and water resources aspects, including desk review, stakeholder consultations across the five regions and across all sectors, and analysis of climate change risks and identification of adaptation options that have a regional dimension and can be taken up through regional or bilateral cooperation. Following the scoping study, FutureWater supports in the identification of priority activities based on an extensive consultative process in the region, with emphasis on climate resilience. Also it supports the identification of potential water pillar development partners and financing opportunities, including steps needed to qualify for climate finance

The Asian Development Bank supports Tajikistan in achieving increased climate resilience and food security through investments in modernization of Irrigation and Drainage (I&D) projects. A Technical Assistance is preparing modernization projects for two I&D systems in the Lower Vaksh river basin in Tajikistan. In line with this, the TA will prepare a holistic feasibility study and project design for the system (38,000 ha), as well as advanced designs and bidding documents for selected works.

FutureWater is part of the team of international experts, working together with the local consultant on the climate risk and adaptation assessment that accompanies the feasibility projects. For this purpose, past climate trends will be analyzed, climate model projections processed, and a climate impact model will be used to assess how the project performs under a wide range of future conditions, to assess the robustness of the proposed I&D investments, and identify possible climate adaptation measures.