User's blog

SOLAQUA

The next evolution in solar: from land to sea

PROBLEM

Limited space on land to host increase in demand for renewable energy

There is a growing demand to switch to more renewable energy sources. Many countries are now constructing wind and solar farms on dry land, while those with lakes and other enclosed bodies of water are including offshore solar. However, it requires around 10,000m2, or two football fields, for every 1MWp installed. Small countries such as Malta which do not have such resources are looking for an alternative.

SOLUTION

Looking at open bodies of water as an alternative to land based systems for sustainable energy

The sea provides the perfect platform for islands, coastal cities and regions facing land scarcity to tap into solar energy generation and is an exciting evolution of onshore and lake based solar technologies.

We are living on a planet where water covers more than 70% of the Earth’s surface. Since water based areas are not utilised as land is, offshore solar floating PV farms allow for tapping into unused maritime space that surrounds coastal areas.

HOW

Modular floating platforms desgined to host offshore floating PV panels

Modular floating platforms designed to host offshore floating PV panels.

Photovoltaic panels are mounted onto specifically designed platforms which are anchored out in open water.

The modules can be connected to one another and easily scaled up to the required size.

The power generated is channelled back to land and would then be connected to the grid by subsea cables.

OUR TECHNOLOGY

Solaqua is a modular, offshore floating platform designed to host photovoltaic systems in open sea.

Robust & Scale-Up

The platform is engineered to withstand the demanding conditions of the Mediterranean offshore environment. Its robust construction ensures longevity and perfomance, comparable to land-based PV farms. With the ability to endure harsh offshire conditions, it offers reliable and durable operation.

The platform offers scalability through its modular design. Each platform can be easily connected to up to six other platforms, allowing for seamless expansion and increased power generation capacity. This scalability feature provides flexibility, enabling the platform to be scaled up to meet growing energy demands. Whether it’s a small-scale installation or a large-scale project, the platform can adapt to different requirements and power needs.

Multi-Purpose & Efficient Design

The platform serves as a versatile floating structure that extends beyond hosting PVs. Its design allows for alternative uses such as fish-farming, desalination, hydroponic farming, and leisure activites. This multi-purpose functionality enhances its value and provides diverse opportunities for utlization.

The platform incorporates an efficient modular hexagonal design. Rigorous testing in large-scale wave tanks has validated its ability to tilt without submerging under water, even in adverse conditions. This efficient design minimizes disruptions, maximizes energy generation, and ensures optimal perfomance.

Sectional Construction & Ease of Incorporation

The platform’s sectional construction allows for efficient transportation and assembly. By dividing the platform into sections, it becomes easier to transport to the installation site, also minimizing transportation costs and logistical challenges. The sectional construction facilitates on-site assembly, streamlining the deployment process and reducing construction time.

The system is designed to anchor at depths of about 80m, at which level there would be minimal environmental impact since the depth is considered low-light and not sustainable for most life forms. At that depth, the system could be connected to current subsea cables already in place, facilitating connection with the grid.

ADVANTAGES
OF OFFSHORE SOLAR

Ease of reach

It is estimated that 50% of the world's population reside in coastal towns or cities therefore offshore systems offes the opportunity for an alternative
energy source which they previously couldn't tap into.

Low aesthetic disruption

Apart from reducing the demand on land, it has a low negative
visual impact in comparison to other land based farms and alternative
offshore renewable systems.

Reduce costs

Offshore solar platforms can be placed very close to shore and where the power is being consumed and also close to high voltage cables which reduces both energy losses and connection costs.

Improved efficiency

The sea provides a cooling environment and a reflective surface - producing 5-10% more than a land based PV installation on land.

Reduced shadow time

The lack of obstacles also reduces loss on efficiency due to shadows which are present in land based farms.

AWARD

WINNING TECHNOLOGY

The technology recieved the Intellectual Property for Scientific Initiative Award at the Malta Intellectual Property Awards, which aims to recognise and promote the creation of promising and innovative Intellectual Property in Malta.

MEET THE TEAM

luciano.mule-stagno@um.edu.mt

+356 2340 7843

ryan.m.bugeja@um.edu.mt

+356 2340 7832

nicola.camilleri@um.edu.mt

+356 2340 3466

Solaqua technology has recieved financial support through...

INTELLECTUAL PROPERTY

The technology surrounding Solaqua is currently undergoing patent prosecution through patent application number WO2023058017A1. The initial filing was submitted in Israel and is currently at PCT.

The technology stems from years of research. Visit our project page to understand more about the projects, history and development.

The Solaqua technology is developed and fully owned by

Get In touch

email solaqua@um.edu.mt