Engie subsidiary develops new offshore floating PV tech for ‘harsh marine conditions’

Facebook
Twitter
LinkedIn
Reddit
Email
A rendering of the technology. Combining offshore floating solar with offshore wind sites has the potential to add large volumes of additional renewable capacity, Tractebel said. Image: Tractebel.

Tractebel – a subsidiary of French utility Engie – has developed a new offshore floating solar technology in partnership with offshore energy specialists DEME and maritime infrastructure firm Jan De Nul.

The tech – dubbed SEAVOLT – is designed to withstand harsh marine conditions, the companies said, with a modular design that makes it easily adaptable to different sites and demands. Based on images from the partners, the technology proposes to raise a bank of solar modules above the waves atop a substantial floating metal structure. A patent for the technology is still pending.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

In collaboration with researchers from Ghent University, the partnership is currently developing a test site to be deployed off the Belgian coast in Summer 2023. They are also launching parallel schemes focusing on the environment, ecosystem and cost-effectiveness with funding from the Energy Transition Fund and Federal Relaunch Fund in Belgium.

Tractebel said that SEAVOLT has the potential to be paired with offshore wind installations, opening up significantly more potentially deployable renewables capacity. Where local authorities allow for multi-use concessions, the potential exists to deploy large capacities in short order. Offshore solar also offers an attractive solution in countries where land use is a growing issue for developers.

“In the same way that we have seen wind technology moving from land to the sea, we are seeing the extension of the whole energy system towards offshore locations,” said Philippe Van Troeye, Tractebel CEO.

“We believe offshore floating PV has an important role to play in the acceleration of the energy transition. While this technology is still in its infancy, we are convinced that with such strong partners on board we are giving SEAVOLT all possible chances to succeed.”

In January, PV Tech Premium spoke with Oceans of Energy, a company developing offshore floating PV technology in sites off the Netherlands, about the road to commercialising the technology from a research to a deployment stage.

3 November 2026
Málaga, Spain
Understanding PV module supply to the European market in 2027. PV ModuleTech Europe 2026 is a two-day conference that tackles these challenges directly, with an agenda that addresses all aspects of module supplier selection; product availability, technology offerings, traceability of supply-chain, factory auditing, module testing and reliability, and company bankability.

Read Next

June 19, 2026
Origis has secured a US$900 million package, which consists of US$650 million in credit facilities and a US$250 million LoC facility.
June 19, 2026
Swiss electrification company ABB has launched a new power conversion portfolio for the solar PV and BESS industries.
June 19, 2026
The Solar Energy Industries Association has launched an interactive map showing that solar development occupies only 0.07% of US farmland.
June 19, 2026
Novva has acquired the 120MWp San Jose Solar Power Plant (SJSP) in the Philippines from the Mabuhay Power Holdings Corporation. 
June 19, 2026
Huasun Energy will launch its Himalaya PLUS HJT module in Europe at next week’s Intersolar industry event.
Premium
June 19, 2026
Shreeyashi Ojha reports on a European PV recycling venture looking to maximise the value of materials recovered from end-of-life modules.

Upcoming Events

Media Partners, Solar Media Events
June 30, 2026
Sacramento, California
Media Partners, Solar Media Events
August 25, 2026
São Paulo, Brazil
Media Partners, Solar Media Events
September 1, 2026
Mexico City, Mexico
Solar Media Events
September 9, 2026
Schaumburg, Illinois
Media Partners, Solar Media Events
September 9, 2026