UAE renewable energy breakthrough: Hatta hydropower project transforms desert power

Hydropower in the desert is no longer a paradox — it’s a practical, scalable solution. Today, pumped-storage technology is redefining what’s possible in renewable energy, offering a blueprint for sustainable power generation in the most challenging environments.

With technology advancement, pumped-storage systems are ideal because they recycle the same water repeatedly, minimising consumption while providing grid stability. This is especially critical for countries like the UAE, where solar energy dominates but fluctuates with daylight hours.

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Recently, the UAE entered this arena with the launch of its first hydropower project in Hatta, expected to generate 250 megawatts (MWs) to meet local demand and supply surplus power to Dubai. This state-of-the-art facility marks a major milestone for the emirate and the Gulf region, using water stored in the Hatta Dam and a newly constructed upper reservoir in the mountains.

“Trial operations at the Dh1.42 billion ($387 million) pumped-storage hydroelectric plant in Hatta have already generated more than 17,900 megawatt-hours,” Dubai Electricity and Water Authority (Dewa) said in a statement recently.

Developing hydropower project in desert regions with limited natural water resources requires innovation and strategic planning. Unlike traditional hydropower systems that rely on abundant rivers, these projects often use pumped-storage technology to maximise efficiency and integrate with other renewable sources such as solar energy.

The Hatta Pumped Storage Hydropower Plant in Dubai, the first of its kind in the Arabian Peninsula, is the prime example of this concept. It uses the existing Hatta Dam and a newly built upper reservoir to store energy generated from solar power, providing up to 250MW of capacity. The project will have a storage capacity of 1,500 MWh and a life span of 80 years.

This project demonstrates how hydropower can complement clean energy strategies in arid environments. During off-peak hours, advanced turbines will use clean energy to pump water from the dam to the upper reservoir. Turbines operated by the speed of the waterfall from the upper reservoir will be used to generate electricity through a 1.2-kilometre subterranean water canal, with high efficiency in power generation and storage of up to 79 per cent and with a 90-second response to demand for electricity.

The project, a part of a comprehensive vision to develop Hatta and enhance its sustainable development, highlights how the emirate is diversifying its energy sources and pioneering in technology that is rarely seen in the region. It also supports the Dubai Clean Energy Strategy and the Dubai Net Zero Carbon Emissions Strategy 2050.

Through the project, Dewa aims to diversify energy production from renewable and clean sources in Dubai. These include different available technologies, such as solar photovoltaic panels and concentrated solar power, as well as the use of renewable energy to produce green hydrogen.

The production capacity of clean energy in Dubai has reached 2,027 megawatts (MW) using photovoltaic solar power (PV) and concentrated solar power (CSP). This is about 14 per cent of Dubai's total power production capacity of 14,517MW, according to an official announcement.

The Mohammed bin Rashid Al Maktoum Solar Park, which Dewa is implementing, is the largest single-site solar park in the world using the Independent Power Producer (IPP) model. It will have a production capacity of 5,000MW by 2030, using photovoltaic solar panels and CSP technologies.

A Blueprint for the Future

The Hatta project is more than an engineering achievement; it is a symbol of resilience and innovation. By combining hydropower with solar and other renewables, the UAE is setting a precedent for energy strategies in water-stressed regions worldwide. As climate change intensifies and energy demand grows, such integrated solutions will become essential for achieving global net-zero targets.

Industry specialists and energy experts said environmental considerations are paramount. Despite the hurdles, hydropower in desert regions symbolises resilience and innovation. By combining engineering expertise with sustainable water management, such projects can transform energy landscapes, offering a blueprint for renewable energy in challenging environments.

They are of the view that building reservoirs in desert regions requires careful planning to minimise evaporation losses and protect fragile ecosystems. Innovative solutions, such as floating solar panels on reservoirs, can reduce evaporation while generating additional clean energy. Economically, these projects can diversify energy sources, reduce reliance on fossil fuels, and support sustainable development in water-stressed areas.

FAQs

Hydropower is one of the oldest and most mature energy technologies and has been used in various forms for thousands of years. It is considered an environment-friendly solution and reliable source to generate electricity at affordable cost and in practice more than 160 countries across the world.

What is hydropower?

Hydropower converts the energy of moving water into electricity. It includes several generation and storage technologies, predominantly hydroelectricity and Pumped Hydro Energy Storage (PHES).

How is hydroelectricity produced?

Hydroelectricity is produced by passing water, usually from a reservoir or dam, through an electricity generator known as a turbine. As the water passes through the turbine blades, it drives the generator to convert the motion into electrical energy.

How does PHES work?

Pumped Hydro Energy Storage uses water reservoirs as a way of storing energy. Excess energy, either from the grid or a renewable energy source such as a wind or solar farm, can be used during low demand periods to pump water from a lower dam to a higher one, essentially converting the upper reservoir into a giant battery.

Muzaffar Rizvi

muzaffarrizvi@khaleejtimes.com

Muzaffar Rizvi is an accomplished financial journalist with more than 25 years of experience in the UAE and Pakistan. He has good writing skills, strong grip on production and an excellent news sense.