Top 10 Largest Floating Solar Power Plants in the World (2026 Deep-Dive Guide)

The floating solar power plant technology has evolved into utility-scale infrastructure exceeding hundreds of megawatts. As land shortage remains a challenge in many countries, using solar energy through a Floating Solar Power Plant is becoming a sensible choice.

However, there exists a more complicated picture behind the rapid expansion of floating solar: floating solar does not only belong to the domain of renewable energy, but also represents an engineering challenge involving hydrodynamics, anchoring systems, and environmental constraints.

1. Dongying Offshore Floating Solar Power Plant (China) — ~1 GW

The Dongying project marks a significant bend in the history of floating solar. This is one of the first utility-scale offshore floating photovoltaic (FPV) systems designed for open-sea deployment, unlike previous installations.

Backstory & Development

China’s strategy regarding future power generation involves more of an effort at using multi-use marine infrastructure, where wind, aquaculture, and solar coexist in similar locations. The Dongying project is thus created with consideration of shallow waters off China’s coast and proximity to industrial centers of increased energy consumption. The project is also in line with the larger initiative by China to increase renewable generation without any competition with agricultural or urban land. Offshore devices give developers a great deal of options they did not have previously.

Engineering Complexity

Offshore FPV presents a radically new engineering paradigm over inland systems:

• The floating structures must resist continuous wave motion and tidal dynamics, including wave action and tidal force.
• Instead of the anchor system used for inland FPVs, it uses deep seabed anchoring and tension systems on the ocean bottom with tension cables.
• The structural material should be resistant to long-term saltwater corrosion and biofouling in the long run.
• Electrical systems need more insulation and moisture and salinity resistance.

These factors significantly increase the engineering difficulty of a Floating Solar Power Plant.

Why It Matters

Dongying is the embodiment of the shift in the industry structure:

• The floating solar technology can operate without being limited by freshwater resources inland.
• The gigawatt-scale expansion potential is possible offshore.
• FPV can become one of the marine renewable energy sources and part of a broader marine energy infrastructure, like offshore wind.

2. Anhui Fuyang Floating Solar Farm (China) — ~650 MW

This project is a perfect example of how floating solar might be used to transform what is harmful for the environment into a beneficial source of energy.

Historical Context

The area was once a strong coal mining area. The continuous underground mining processes caused soil subsidence, after which water reservoirs appeared there. This water carrier, however, would have been unsuitable for cultivation or construction.

Instead of just abandoning the place, Chinese planners decided to repurpose the area by building a vast Floating Solar Power Plant right where the water had been.

Development Strategy

• Subsidence-induced water bodies deployment.
• Adapted design to uneven and shifting ground conditions.
• Connection to regional power grids.

This pattern has been mirrored in several other ex-mining areas in China.

Engineering Challenges

• Poor and fragile geological support as a result of mining.
• Great depth, variation in water depth, and sediment composition.
• High anchoring and distribution of loads.

These aspects demand thorough geotechnical investigations and tailored anchoring systems.

Strategic Importance

• Reuse of industrial land that is in poor condition to create energy infrastructure.
• Reduction of the environmental risks.
• A common model applicable to other coal-dependent regions.

This project is usually regarded as an example of the coal-to-solar transition strategy application.

3. Omkareshwar Floating Solar Project (India) — 600 MW

The Omkareshwar Floating Solar Project is a huge and ambitious FPV project. It is being built on the reservoir of the Omkareshwar Dam, which incorporates the solar generation into an already existing hydropower system.

History & Development

• Planned capacity: 600 MW.
• Construction initiated in 2022
• 278 MW were commissioned between 2023 and 2024
• Developed by several firms, including AMP Energy and NHDC, as well as SJVN

The multi-developer model represents an Indian strategy of scaling large infrastructure through distributed execution.

Scale & Impact

• Covering several square kilometers of reservoir surface.
• Takes advantage of available hydropower transmission.
• Decreases the strain on the land needed for installing solar energy equipment.

Failure and Lessons

There were some problems related to strong winds, causing some damage to parts of the system in 2024.

This event is important in that it has shown that:

• The wind load distribution is very sensitive in large-scale FPV systems.
• Anchoring systems should be designed not only for normal but also for extreme conditions.

Key Engineering Insight

The project points out an extremely important fact:

The scaling performance of floating solar relies more on:

• Anchoring and mooring systems.
• Structural integrity
• Environmental load management

than the photovoltaic technology itself.

4. Wenzhou Taihan Floating Solar Project (China) — ~550 MW

The Wenzhou project is a stepping stone to the development of floating solar, between inland FPV systems and fully offshore systems.

Development Context

China had designed FPV to be suitable for use near the coast, in coastal reservoirs and brackish water environments.

Engineering Features

• Better floating platforms with higher wind loading.
• Salinity can be handled using corrosion-resistant materials.
• Improved anchor systems to control fluctuating water conditions.

Challenges

• Saline or semi-saline exposures.
• Strong coastal winds.
• More challenging grid connections with coastal placement.

Importance

Wenzhou is an intermediate and transitional technology platform, which allows:

• Progressive accustomation to offshore conditions.
• Testing of materials and anchoring systems.
• Future scaled technologies for marine solar energy generation.

5. Changhua Floating Solar Project (Taiwan) — ~440 MW

The growth of floating solar in Taiwan is not just innovation but a necessity.

Strategic Drivers

• Severe shortage of land.
• Dependent on imported fossil energy.
• There is strong policy support for renewable energy.

Floating solar farm technology can help Taiwan enhance its production capacity without competing with urban land or agricultural land.

Engineering Challenges

• Typhoon resistant design requirements.
• Constant dampness causes deterioration of materials.
• Environmental and coastal law regulations.

6. Dezhou Dingzhuang Floating Solar Farm (China) — 320 MW

One of the major achievements of the Dezhou Dingzhuang plant is that it was one of the initial floating solar power stations that was able to produce more than 300 MW.

Innovation

• Wind power and energy storage systems.
• Designed as a multi-source renewable energy station.

This mixed format increases reliability and reduces variation.

Historical Importance

Upon commissioning, Dezhou became one of the largest FPV power plants in the world, proving that the technology can scale successfully.

Engineering Challenges

• Coordination of various sources of energy in a single grid system.
• Controlling thermal performance in high-temperature environments.
• Floating stability for a large solar farm.

Why It Matters

Dezhou has shown that floating solar can:

• Scale to utility level.
• Work within multi-energy systems.
• Support hybrid renewable energy networks.

7. Cirata Floating Solar Plant (Indonesia) — 192 MW

Southeast Asia’s most remarkable project is the Cirata Floating Solar Power Plant.

Development Background

• Indonesia/Masdar (UAE): cooperation between PLN, a state electricity company, and Masdar.
• Located above an existing hydropower reservoir.

Key Advantages

• Takes advantage of the existing transmission infrastructure.
• Increases grid stability through the use of hydro-solar integration.

Challenges

• Complex financing schemes involving different participants from around the world.
• Coordination of various regulatory frameworks.
• Environmental permission to use the reservoirs.

Strategic Role

Cirata Reservoir provides an example to emerging economies of how floating solar can be efficiently scaled with the help of already existing hydroelectric facilities.

8. NTPC Ramagundam Floating Solar Plant (India) — 100 MW

Ramagundam is amongst the large-scale solar projects in India.

Project Details

• Commissioned in 2022
• Total capacity: 100 MW
• Placed over about 500 acres of reservoir surface.
• Split into 2.5 MW 40 modular blocks.

In every block, there are around 11,000+ solar panels installed in floating platforms.

Engineering Design

• Module-based design ensures easy fault isolation and maintenance.
• Unique cable networks and floating transformers make power evacuation more efficient.

Why It Matters

Ramagundam proved that:

• In India, floating solar is a reality.
• Stable performance is possible with a large-scale application.

Floatex Solar played an important role in this NTPC project, especially in designing the floating solar structure and anchoring system.

9. Huainan Floating Solar Project (China) — ~150 MW

One of the first large-scale projects that used FPV was the Huainan floating solar plant, and it was a significant step towards forming the general perception of FPV in the world.

Backstory

• Built on flooded coal mining subsidence areas
• Turned industrial wasteland into eco-friendly infrastructure.

Impact

• Proved that massive floating solar installations could be constructed.
• Scaled up FPV technology from experimental to practical.

Challenges

• Changing depths of the water.
• Unstable land due to mining

10. Tengeh Reservoir Floating Solar Farm (Singapore) — 60 MW

One of the FPV installations that is the most environmentally sensitive in the world is the Tengeh floating solar project.

Why It Is Unique

• Built on a drinking water reservoir
• Designed in one of the world’s most landlocked countries.

Challenges

• Water purity standards.
• Restrictions on building techniques and materials.
• Ongoing environmental monitoring requirements.

Importance

As the Tengeh Reservoir shows, floating solar can be implemented even in highly urbanized and environmentally regulated contexts, and such a model is key to densely populated cities worldwide.

Future Trends in Floating Solar Power Plants

The floating solar market is leaving the experimental stage and is entering a period of high growth, innovation and internationalization. The following are the main trends that will determine its future:

1. Massive Market Expansion

Floating solar will experience high growth in the long-term, with the market potentially attaining tens of billions in value by 2035 due to the increasing energy demand and scarcity of land.

2. Change to Floating Solar offshore

The next big leap is offshore deployment. Early signs of FPV going to oceans, such as Dongying, open up gigawatt potential.

3. Hybrid Energy (Hydro + Solar + Storage)

Floating solar will become more interconnected with hydropower reservoirs and battery storage, forming reliable, 24/7 renewable energy systems. This hybrid system enhances reliability of the grid and utilizes the existing infrastructure.

Key Learning from Top Projects

Role of Floatex Solar in Floating Solar Projects

Floatex Solar is one of the leading specialized engineering firms in India for floating solar power plant systems, specializing in:

• Floating platform systems
• Mooring and anchoring solutions.
• FPV structural engineering.

Projects and Industry Involvement

• NTPC Ramagundam.
• NTPC Kayamkulam.
• Omkareshwar project on a large reservoir.

We specialise in designing floating systems and anchor systems that can deal with:

• Wind loads
• Water level variations
• Long-term material fatigue

Conclusion

Floating solar is now at a completely new development stage, from an experimental technology to a major and critical global energy infrastructure in the world.

One can see the clear trend among the projects presented in the guide:

• China leads in terms of the size of projects and innovations introduced.
• India is fast catching up with hybrid projects with water storage facilities.
• Southeast Asia is using floating solar technology to provide power stability.

However, the future of floating solar is in solving engineering challenges, particularly regarding anchoring, durability, and offshore implementation. With the projects growing in size, the Floating Solar Power Plant industry is heading toward a non-conventional approach in solar power production, where maritime technologies and marine engineering-driven energy systems are becoming increasingly relevant.

Follow us on LinkedIn.