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Hydropower in South and Central Asia

With diverse topography and hydrologic conditions, Central and Southern Asia has immense hydropower potential.
Generation by hydropower (2023)
514 TWh
Hydropower installed capacity (2023)
164 GW
Capacity added (2023)
1,338 MW
Pumped storage installed capacity (2023)
8 GW
Pumped storage capacity added (2023)
0 GW

South and Central Asia regional overview and outlook

There were promising signs of progress in 2023 in South and Central Asia on largescale hydropower development. The same applies to regional cooperation on water and electricity interconnectivity. Notable steps included the announcement of major PSH projects in India, following the publication of a government guidance note on development. The continued support from multiple governments for the Kambarata 1 (Kambaratatsk) hydropower project in Central Asia was also encouraging. Many governments made announcements on new projects or signed MOUs for large-scale projects, referring to hydropower’s important role in their energy transition.

While not many new projects were commissioned in 2023, many are nearing completion. These include major projects in Bhutan and Pakistan. As many existing assets were built in the '60s and '70s, a great deal of increased capacity has come from the modernisation of existing assets. This continues to be critical in maintaining the region’s electricity systems and water supply.

After project delays, the Central Asia South Asia Transmission and Trade Project (CASA-1000) was the subject of new talks in late 2023. The project will see the enhanced interconnection of Central Asian countries including Kyrgyzstan, Tajikistan, Afghanistan and Pakistan. The World Bank also announced it would provide additional support measures for select countries. Many countries are working on regional development projects that will see them share water and electricity, based on existing treaties.

The governments of Azerbaijan and Iran reached an agreement to complete the construction of the Khudaferin and Giz Galasi dams. So far, 96% of the works have been completed. When commissioned, the projects will have an installed capacity of 100MW and 40MW respectively, on the Azerbaijani and Iranian sides.  Kyrgyzstan and Georgia signed an MOU in November 2023 to share knowledge of Georgia’s successful energy sector reforms, especially on hydropower. Furthermore, Kazakhstan, Kyrgyzstan and Uzbekistan announced they will create a joint-stock company for the Kambarata 1 hydropower plant.

Qairokkum, Tajikistan, Credit: GE Vernova

South and Central Asia policy and market overview

Due to the interconnectivity of water and electricity, the management of these two resources has geopolitical implications for the region. Many countries have tensions based on historical conflicts around water that could affect hydropower development or existing operations. Coordination on water use for upstream and downstream countries will be critical to avoid future conflict. This is even more key with the increased need for climate adaptation to flooding and drought. Across the region, emergency measures were undertaken by multiple governments because of droughts.

Bangladesh experienced severe heatwaves in April to June that forced power cuts to millions due to supply shortfalls. The country faced a daily electricity deficit of ~2.5GW. Rural areas experienced more than 10 hours of load shedding every day. In Uzbekistan, President Shavkat Mirziyoyev issued an emergency decree due to a 10–15% reduction in the volume of the Syr Darya river, while the Amu Darya river was projected to contract by 15–20%. This decree included penalties for wasting water. Both rivers have seen a 90% flow reduction since 1960.

Iran faced its worst water shortages and drought for nearly 20 years. This shortage in electricity has increased the use of hydropower resources. In December of 2023, ISNA reported that reservoir levels were at 40%. These have been dropping further due to overuse of hydropower resources. Outflow increased more than inflow, by 22% to 7%, year on year. There has been limited new generation built, despite the Government’s plan to increase installed capacity by 6GW. Conversely, many countries in the region experienced significant flooding.

Pakistan was heavily impacted by monsoon flooding in August 2023. Over 100,000 people were evacuated from villages in the Punjab province, when the Sutlej River burst its banks. Northern India experienced its wettest day in decades in July 2023, which left at least 22 dead due to flooding and landslides. Hydropower projects faced silt deposit issues from the floods. This caused 1.6GW of capacity to remain offline, and flooding in August caused landslides to kill at least 60 people.

In October 2023, flooding in Sikkim led to 74 deaths and 101 people missing after a glacial lake outburst f lood washed away the 1.2GW Teesta Stage III hydropower project. All bridges downstream of the Teesta V hydropower station were destroyed and the flooding led to overtopping at the dam. The 500MW under-construction Teesta VI project site was also impacted.

Floodwaters entered the powerhouse and transformer cavern, with bridges washed away. After the flooding in Sikkim, India’s Central Electricity Authority issued slope stability guidelines for hydropower projects to prevent future disasters.

As discussed in the climate topic section within this report, all these developments underline the need to invest in climate adaptation and resilience for existing hydropower projects. The increased prevalence of drought and floods also points to the need for more water infrastructure.  If there are to be more dams and reservoirs for water management reasons, then these should be powered where possible to get extra benefit from the investment.

Rogun Hydropower Plant, Tajikistan, Credit: TGEM

Latest developments

Azerbaijan
Bhutan
Georgia
India
Iran
Iraq
Kazakhstan
Kyrgyzstan
Nepal
Pakistan
Russia
Sri Lanka
Tajikistan
UAE
Uzbekistan

Azerbaijan

Hydropower installed capacity (2023)
1,302
MW
Pumped storage installed capacity (2023)
0
MW
Generation by hydropower (2023)
2
TWh

President Ilham Aliyev outlined in October 2023 that Azerbaijan is seeking to expand its hydropower capacity from 170MW to 500MW within two to three years. He said this progress will represent “another important contribution to the green energy transition

Countries to watch

Key

Low unexploited potential/minimal policy activity/limited project pipeline
Moderate unexploited potential/some policy activity/intermediate project pipeline
High unexploited potential/strong policy activity/Large project pipeline
Country
Unexploited potential
Policy activity
Development pipeline
Canada (Québec) 

Canada (Québec) 

Unexploited potential

The province’s electricity mix is dominated by hydropower, but over 40GW of potential remains.

Policy activity

Hydro-Québec’s strategic plan includes building greenfield hydropower to decarbonise the province’s economy.

Development pipeline

Preliminary studies were launched for a development on the Petit Mécatina river, with a potential of 1,200MW.

Canada (British Columbia)  

Canada (British Columbia)  

Unexploited potential

The province’s electricity mix is dominated by hydropower, but over 30GW of potential remains.

Policy activity

C$36 billion of infrastructure spending has been announced to support electrification to meet climate goals.

Development pipeline

New transmission lines have been announced that will connect hydropower from the main grid to north coast industries.

USA

USA

Unexploited potential

While the USA has exhausted most of its feasible greenfield hydropower potential, significant opportunities still remain for PSH.

Policy activity

Landmark new laws have provided tax incentives and unlocked funding for new PSH development.

Development pipeline

A significant increase of PSH capacity through upgrades and new development has been announced.

Mexico

Mexico

Unexploited potential

The country has a well-established hydropower fleet, with potential remaining.

Policy activity

Refurbishment of hydropower facilities is expected to increase hydropower capacity.

Development pipeline

Droughts affected hydropower generation in 2023.

Argentina 

Argentina 

Unexploited potential

The country only uses around 20% of its estimated potential. 

Policy activity

Argentina has implemented several policies and fiscal incentives to support hydropower development, including feed-in tariffs and PPAs through the GENREN programme, specifically targeting small hydro projects up to 30MW. 

Development pipeline

Several substantial hydropower projects are in progress, such as Corpus Argentina (3,500MW), Santa Cruz Plant (1,310MW) and Codón de Plata (1,100MW).

Bolivia

Bolivia

Unexploited potential

Bolivia has only used around 2% of its estimated hydropower potential, although approximately 80% of the untapped capacity is located in very remote areas.

Policy activity

Bolivia prioritises large-scale hydropower projects through state-owned utilities, significantly investing in capacity expansion with support from national funds and international loans.

Development pipeline

The pipeline includes the 3,000MW binational Rio Madeira project, along with several medium and small-scale projects currently underway.

Ecuador 

Ecuador 

Unexploited potential

Ecuador has harnessed approximately 7% of its hydropower potential.

Policy activity

The Ecuadorian Government has included hydropower development in its long-term planning. With ambitions for up to 80% of the nation's electricity supply to be sourced from renewables, including hydropower, new laws and regulations have been introduced to encourage private investment in the sector.

Development pipeline

Ecuador aims to harness its untapped hydropower potential, exemplified by the Zamora G8, G9, and G10 cascading project with a total capacity of 7,225MW. Several medium-size projects in the pipeline seek support from foreign investments.

United Kingdom 

United Kingdom 

Unexploited potential

Substantial PSH potential to exploit.

Policy activity

The government is showing support for new PSH development and is currently studying the implementation of an ad-hoc remuneration mechanism for LDES technologies. It is estimated that in Great Britain up to 50GW of long-duration flexibility will be needed by 2035.

Development pipeline

Several PSH projects are under development for a combined installed capacity of over 7GW and 136GWh of energy storage. Recent support shown by the UK Government has substantially sparked the market, attracting local and international investment.

Spain

Spain

Unexploited potential

Limited conventional hydropower potential remains, but there is great scope to develop new PSH assets or convert existing facilities.

Policy activity

The Spanish Government has set targets to develop 22GW of storage capacity by 2030. A grant scheme of €100 million has been made available for PSH development.

Development pipeline

Six PSH projects in Spain are currently in permitting stage or under construction. Combined, these have an installed capacity of around 2.5GW with over 740GWh of energy storage.

Austria

Austria

Unexploited potential

Limited conventional hydropower potential remains to be developed, but PSH potential is significant.

Policy activity

The 2021 Renewable Energy Expansion Act sets a challenging target to increase hydropower production by 4TWh by 2030.

Development pipeline

Austria has over 2.7GW of hydropower plants under development (1GW under construction), of which the vast majority are PSH assets.

Switzerland 

Switzerland 

Unexploited potential

Limited conventional hydropower potential remains to be developed, but PSH potential is significant.

Policy activity

Between 2020 and 2021, the Swiss Government identified 16 PSH projects through a multi-stakeholder consultation aiming to develop 2TWh of capacity over two decades. A new law introduced in 2023 simplifies approval processes for PSH projects.

Development pipeline

The country has solid plans to boost its long-duration energy storage through the development of 16 new PSH projects, though these are currently in early stage.

Türkiye 

Türkiye 

Unexploited potential

According to the Turkish Government there is over 130TWh of technically exploitable hydropower potential in the country, of which 60-70TWh is currently used. 

Policy activity

The Turkish Government has substantially supported the development of new hydropower facilities over the last 20 years and placed hydropower resources at the core of its energy policies. 

Development pipeline

Türkiye has 2.3GW of hydropower projects currently under development, of which 460MW are under construction.  

Angola 

Angola 

Unexploited potential

Angola has an exploitable hydropower potential of 12GW, with only 4GW currently utilised, making it a priority in the government's infrastructure plans to meet growing electricity demand.

Policy activity

The government aims to achieve cost-reflective tariffs by 2025 and increase financial autonomy for utilities. Angola's long-term energy strategy focuses on increasing electrification rates and capacity, with external financing and private investment crucial for future projects.

Development pipeline

The country is advancing renewable energy initiatives with China's support, as seen in the Caculo-Cabaca Hydropower Station project. 

Burundi

Burundi

Unexploited potential

Burundi’s estimated hydropower potential is 1,700MW of which 20% is economically viable.

Policy activity

Burundi–China cooperation in the energy sector has been significant, with projects like the Ruzibazi hydropower plant completed ahead of schedule with Chinese assistance. Ongoing discussions and funding mobilisation for future projects underscore the importance of China's continued support.

Development pipeline

The completion of the Regional Rusumo Falls hydropower plant, with a portion of its output dedicated to Burundi, will reduce reliance on costly thermal generation. Additionally, the Jiji and Mulembwe hydropower project is set to increase the country's installed capacity by 50% in the next two years.

Egypt

Egypt

Unexploited potential

Although most potential hydropower has already been used, opportunities remain for small hydro and pumped storage.

Policy activity

Egypt joined the Battery Energy Storage Systems Alliance (BESS), which is one of the main initiatives of the Global Energy Alliance for People and Planet (GEAPP) during COP28 in Dubai.

Development pipeline

Egypt is partnering with China Energy to conduct a feasibility study for a proposed 2GW PSH plant. If realised, it would be the largest PSH project in Africa.

Nigeria 

Nigeria

Unexploited potential

The total exploitable hydropower potential is estimated to exceed 14,120MW, translating to over 50.8TWh annually.

Policy activity

Despite its vast potential, Nigeria's hydropower sector faces hurdles such as funding constraints and infrastructure deficiencies. However, the government aims to overcome these challenges with strategic partnerships and innovative financing models.

Development pipeline

Nigeria's Federal Ministry of Water Resources has initiated a tender for private partners to construct, operate, and maintain the 20MW Farin Ruwa hydropower plant through a concession agreement. 

India 

India 

Unexploited potential

The CEA reports that India has only developed 29% of its total hydroelectric potential of 145.3GW, while also having 100GW of potential PSH, with only 4.7GW in operation. 

Policy activity

India has provided significant policy support in recent years, classifying hydropower above 25MW renewable, creating a Renewable Purchase Obligation and Energy Storage Obligation, a waiver of inter-state transmission charges for electricity from solar and wind for use by PSH projects, and budgetary support for the cost of enabling infrastructure. 

Development pipeline

Numerous states have made announcements in 2023 and ~10% of hydropower potential is under construction. Many large-scale projects were announced in 2023–24 or reached an MOU stage including 2GW in Odisha, 7.35GW in Maharashtra, 11.2GW potential in Madhya Pradesh and 13GW in Arunachal Pradesh.

Russia

Russia

Unexploited potential

Russia’s Deputy Energy Minister noted that only 20% of the country’s hydropower potential has been developed. 

Policy activity

The Deputy Energy Minister highlighted that there is little privately developed hydropower, so the state will likely need to provide support, as the market does not compensate for investment costs and there needs to be better consideration of longer payback periods. 

Development pipeline

Russia’s current plan for hydropower development includes 6.5GW to be completed by 2035 and a total of 11.5GW new hydropower (including PSH) by 2042.

Pakistan

Pakistan

Unexploited potential

Caretaker Minister for Power Muhammad Ali stated that Pakistan has a potential for 64GW from hydropower, however only 11GW have been commissioned so far.

Policy activity

Pakistan has called the 2020s the Decade of Dams, with an ambition to add 10GW by 2030. However, despite utilising Green Euro Bonds to finance two large-scale projects, financing is considered an issue. 

Development pipeline

The Tarbela 5th Extension hydropower project is expected to be completed in 2025 and increase the capacity of Tarbela from 4,888MW to 6,418MW. Other major projects in the pipeline include Dasu (4,320MW) expected online in 2026; Mohmand (800MW) in 2026; and Diamer-Bhasha (4.5GW) due for completion in 2028. 

Tajikistan 

Tajikistan 

Unexploited potential

Tajikistan has an immense hydropower generation potential of 527TWh, with only 4% of its potential currently exploited.

Policy activity

A US$15m World Bank loan is intended to create sounder governance, financial and macro-fiscal framework and contribute to the socio-economic development of Tajikistan, which may see new support mechanisms considered.

Development pipeline

Numerous IFIs have announced financial support for the 3.78GW Rogun hydropower project. In addition to the major hydropower projects in the pipeline, Minister Daler Juma announced a plan to produce 500,000 tons of green hydrogen by 2030 and to double that by 2040. 

Kyrgzystan 

Kyrgzystan 

Unexploited potential

Kyrgzstan has an estimated hydropower generation potential of 140–170TWh, but only about 30% is being utilised. 

Policy activity

Limited renewable energy targets have been put in place. Kyrgzstan has indicated it will construct new hydropower plants to support its NDC targets as well as diversifying its renewable energy sources. 

Development pipeline

In early 2024, the World Bank discussed financing several hydropower projects in Kyrgyzstan, including the 1.86GW Kambarata 1, which will have a 5.4 billion m3 reservoir volume, generating 5.6TWh. Additional small-scale cascade projects on the Naryn River are planned, which could lead to 237MW and 439MW if completed. 

China 

China 

Unexploited potential

China has led the way globally in the large-scale development of its hydropower potential, but the country’s on-river hydropower capacity is now nearing saturation.

Policy activity

China has heavily incentivised hydropower development in its new net zero by 2050 policy. The latest national policy outlines a target to reach up to 80GW of PSH by 2027.

Development pipeline

There are a significant number of projects in the pipeline for both conventional hydropower and PSH.

Vietnam

Vietnam

Unexploited potential

Most of the known hydropower potential in Vietnam remains untapped.

Policy activity

Vietnam is quiet on the policy developments needed to unlock its remaining potential.

Development pipeline

The development of conventional hydropower capacity has seen a significant slowdown in recent years.

Australia

Australia

Unexploited potential

Australia has tapped a small proportion of its hydropower potential to date.

Policy activity

Australia recognises hydropower in its net zero policy wording but has not yet maximised the opportunities to promote new investment in the sector.

Development pipeline

Australia has a small number of PSH projects in the pipeline, but no new conventional hydropower currently.

Case Study

The Government of India published its long-anticipated “Guidelines to Promote the Development of Pumped Storage Projects (PSP)”. The Guidelines recognise the value of PSH when it comes to integrating variable renewable energy sources to the energy grid. With PSH expected to play a key role in grid stabilization, meeting peak power demand and benefitting the economy, the government formulated special guidelines to promote its development.  

Currently, PSH is not adequately monetised, and unfairly taxed. The Guidelines share recommendations for market, policy and safe development to encourage promote the development of pumped storage projects:

• Monetising PSH's ancillary services to meet critical electricity market measures.

• Reimbursing the State Goods and Services Tax or exempting land to be acquired for off-river PSH and should not have to face an upfront premium for project allocation.

• Identifying and safely developing exhausted mines for prospective sites and that concessional climate finance could be used to support the development of PSH.

India estimates that it will need at least 18.8 GW of PSH to support the integration of wind and solar into India’s grid by 2032, and the potential is much higher. Additionally, the Central Electricity Authority recently revised estimates show that the on-river pumped storage potential alone is 103 GW in India, with many sites for off-river pumped storage potential also available.

Interesting fact

IA World Bank report on the Bhutanese Labour Market in early 2024 highlighted that the hydropower growth model had delivered immense improvements in living standards over the previous two decades, allowing for investment in human capital and improving services, education and health. The report stated that “GDP per capita between 1980 and 2017 grew by 7.5% annually – one of the highest growth rates in the world.” Life expectancy and human development indicators overall increased between 2000–2021. In addition, electricity access has become almost universal, allowing Bhutan to reach upper-middle-income status as a nation.

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