L R AS Published on Saturday 17 February 2024 - n° 476 - Categories:floating power plant

A new floating photovoltaic system has been developed

A new floating photovoltaic system has been developed by Spanish researchers.

"The novelty of the system lies in the combination of a dual-axis solar tracker with a mini-tensioning platform (TLP). "This is the first time that these two concepts have been proposed for a floating solar system, and HelioSea integrates the two.

The former maximises production, while the latter provides the required stability. TLPs are well known in the oil and gas industry, where they have been successfully applied to drilling platforms, where stability is also paramount". The TLP typically consists of a deck structure, a floating hull based on vertical cylindrical columns, submerged horizontal pontoons and tubular struts. The main advantage of this configuration is that the net buoyancy force exceeds the weight of the structure. This excess buoyancy, in turn, is balanced with tendons or tensioning ties, which are able to moor the floating platform vertically.

The Spanish used a mast and four pontoons connected to the seabed by tensioned mooring lines. "The proposed TLP substructure is independent and monolithic, eliminating the need for moving components and interconnections outside the mooring system. "This feature ensures that the platform remains virtually horizontal with limited ascent and influence excursions," the group said, noting that the system is mobile and reusable, while ensuring minimal vertical movement.

The system has been designed to have a capacity of 75 kW and accepts 138 bifacial PV panels with a nominal output of 545 W. The modules are placed in 6 rows of 23 on a support. Dual-axis vertical and horizontal trackers are included to automatically adjust two angles using servomotors throughout the day.


PV Magazine, 16 February 2024

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