Floating Solar Demonstrator In Spain Promises Lower Costs

Recently, GCL SI and Ocean Sun announced the successful completion of the BOOST floating solar demonstrator. On December 14, 2023, the project culminated at the port of Tazacorte on La Palma in Spain, with an installed capacity of 270 kWp. BOOST showcases the utilization of the GCL MS/60GT Ocean Sun PV modules (“The Module”) and aims to drive innovation in floating solar photovoltaics (FPV) technology. Specialised modules for floating solar have emerged as a key area with the spread of awareness and larger floating solar projects worldwide. The market is expected to be between 8 to 12 GW per annum to 2030 now.

“The long-term collaboration with GCL SI and other independent research partners and institutes has been instrumental for the qualification and bankability of this new PV module installation technology for both fresh and salt water. With GCL SI’s growing manufacturing capability, we look forward to serving the growing international FPV market,” said Børge Bjørneklett, CEO of Ocean Sun.

Since 2018, Ocean Sun and GCL SI have forged a strong alliance, collaborating closely to create a PV module specifically tailored for Ocean Sun ‘s membrane-based floating solar solution. This partnership has involved a rigorous testing process, jointly developed by Ocean Sun, GCL SI, and TÜV Rheinland. The modules underwent an extensive examination, including the immersion of panels in heated seawater under 1500V tension for an extended duration, ensuring the design’s impeccable quality and durability.

The solar module is built with waterproof materials for long-lasting use in moisture-prone areas. Its frameless design reduces aluminum usage, cutting raw material costs by nearly 10%, making it a more affordable and durable choice for solar installations.

The module’s flat back surface enables optimal contact with membrane, effectively reducing operating temperatures and significantly increasing overall system power output. It also underwent rigorous benchmarking at DNV labs in Singapore. The testing involved a comprehensive comparison with ground mount systems and other floating technologies, specifically focusing on validating the superior cooling effects offered by the membrane solution.

GCL SI, which has been actively involved in providing on-site support throughout the entire project will utilize this opportunity to conduct further testing on the panels, closely observing how the modules perform in the face of larger waves and exposure to saltwater.