What Makes Floating Solar Power Plants Sustainable?

What Makes Floating Solar Power Plants Sustainable?

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Imagine a sunny day by the lake. You’re sitting there, sipping your lemonade, and soaking in the sun. Now, picture this – right on the water’s surface, you see solar panels floating peacefully. Yes, it’s not a scene from a sci-fi movie; it’s called a floating solar power plant! It’s like they’re doing the backstroke to save the planet! 

But do you ever know in detail what exactly a floating solar power plant is? key components, their functionality, and how they are benefiting the land and can bring a sustainable future. If not then this guide will give you in-depth knowledge for all these questions. 

Let’s dive in (not literally, though) and find out.

What is a Floating Solar Power Plant?

The floating solar plant is a photovoltaic installation situated right on top of water reservoirs, lakes, ponds, and more. Unlike conventional ground or roof-mounted solar panels, floating solar systems are installed over bodies of water.

These floating structures consist of solar panels that are mounted on floatation devices, which are anchored to the bed of the water body using suitable mooring systems. The generated electricity is conveyed via submerged cables to the shore and fed into the grid.

Now, you might wonder how these floating solar panels are any different from the ones we see on rooftops or fields. Here’s the scoop – they make smart use of space that might otherwise just be, well, water. Traditional solar panels need lots of land, and let’s face it, we’re running out of that stuff.

But the basic technology used is similar – photovoltaic solar panels that convert sunlight into electricity. While the photovoltaic tech itself is much the same as in conventional solar arrays, the floatation components make these systems distinctly aquatic in nature.

Advantages of Floating Solar Power Plant

Let’s go deep down into the various benefits that floating solar offers over typical solar projects on terra firma. For starters, by not monopolizing terrestrial real estate, they allow solar expansion even in land-scarce regions. This is a major plus in densely populated countries hungry for renewable energy.

Additionally,  the reduced land usage, as floating solar systems do not occupy precious land resources. Studies have shown over 10% higher energy yield for floating solar compared to ground installations. 

Cooler panels are more efficient at turning sunlight into electricity, so they’re working smarter, not harder. This becomes advantageous for the water body also. 

Floating solar plants can also limit water evaporation from the reservoirs and water bodies that they are installed on, especially valuable in hot, arid climates. For reservoirs used as drinking water sources, this is a big benefit.

They prevent unwanted algae from growing on the water’s front by providing some shelter. It’s like they’re saying, “Sorry, algae, this is a no-tan zone! 

Challenges and Solutions

Of course, as with any new technology, there are challenges to navigate. Building and maintaining solar systems on water is undoubtedly more complex than on solid ground. Accessing equipment for regular cleaning and upkeep requires special provisions.

And while costs are dropping, floating solar’s specialized components like floatation platforms still make it more expensive upfront than conventional solar arrays. More complex anchoring, cabling, and waterproofing add to the costs.

Thank goodness that many of these problems are already being solved by innovation. 

Lightweight but durable plastic floaters are reducing material costs. Modular designs allow easier maintenance access. Automated solar panel washing systems are in development. 

Major countries like China, Japan, India, and Britain to name a few, have successfully demonstrated big-scale floating solar projects and incredibly doing amazing jobs so far. These demonstrate the viability of the technology both commercially and practically.

How do these impact the environment and ensure sustainability?

Looking at the overall impact of floating solar on the environment, these aspects are crucial which one cannot ignore & should be taken into consideration. Although floating solar farms use less land, there are still issues with animals and underwater ecosystems.

Proper siting, adequate spacing between panels, and using HDPE plastic floaters that allow sunlight penetration, can help minimize impacts on flora and fauna. Recycling systems for floatation materials and solar panels at end-of-life also need to be ensured. 

Studies have generally forecasted & revealed minimal impact on the environment with some advantages including better quality of water. However, each water body’s biodiversity needs to be evaluated before installing floating solar.

Global Adoption and Trends

The technology may be new, but adoption is swiftly on the rise. Floating solar capacity has expanded more than tenfold between 2014-2018, topping 1.3 gigawatts globally. Asia dominates with China, Japan, and South Korea making up the bulk of installations. But Europe is also now steadily deploying floating solar, especially in the Netherlands and Britain.

Industry projections chart even more growth on the horizon. According to World Bank estimates, floating solar potential could be as high as 400 gigawatts worldwide – enough to power 150 million households with clean energy! We’ve only begun tapping these vast solar reserves of water.

Economically afloat too, floating solar is increasingly competitive with conventional solar power. Capital costs are still higher, but power generation costs are already at parity or lower in many cases. With scale and localization, costs continue to fall. Policy support through subsidies and feed-in tariffs has also enabled floating solar’s progress.

Smooth sailing is expected ahead for this innovative approach to solar energy. With its immense promise and rapidly improving economics, floating solar is positioned to make a big splash.

Reservoirs and lakes across various states like Kerala, Maharashtra, and Uttar Pradesh have been identified for potential projects. In 2021, India’s largest floating solar project also came online – a 100 MW plant in Telangana state.

The United Kingdom has emerged as a European leader, with its first floating solar farm being developed in 2019 in Queen Elizabeth II Reservoir. The Netherlands and France also have projects in operation. With these countries paving the way, growth is expected to pick up globally. 

Financial Stability

While floating solar requires higher capital expenditure than conventional ground-mount, the power generation cost is comparable or lower. Financial viability has been projected with its success in delivering multiple projects worldwide. Costs are falling with economies of scale and localization of manufacturing and skills. 

Policy support like capital subsidies and feed-in-tariffs have also enabled growth. By now, you all know about the advantages till the future outlook of the floating solar plant, it is capable of rendering clean energy at a reasonable price and in an environmentally friendly manner where floating solar remains in a strong position. 


Now, what is the conclusion? Floating solar power plants are an innovative way to utilize the thermal energy of sunlight irrespective of areas of water. With its enormous developing capability, floating solar has the potential to develop as a renewable energy solution that contributes to a healthier energy tomorrow.

With smart siting and proper biodiversity impact management, this can expand sustainably. Smooth sailing is expected ahead for floating solar as it crests the wave and continues powering forward. 

While costs are still higher than conventional solar arrays, they are falling steadily as methods improve. A Floating power plant in India is still successful but has also grown in Asian and European countries. The world may soon be impacted by floating solar, illuminating the path to a more sustainable future. 

Sun-AP Ecopower is an officially authorized distributor of solar panels and a one- stop destination for installing solar plants along with its different accessories at a cheaper cost. So if you are looking for power plants for your business or your home, reach out at +918884466393 for your purchase.

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