The WindEnergy trade fair is the global trade fair for onshore and offshore wind energy that takes place every two years in Hamburg. Germany has the right characteristics to be the ideal host of the fair; We are talking about the country of technology and the first to carry out the energy change, which makes it the international forerunner in the implementation of renewable energies.
The last edition, due to the coronavirus pandemic and its global impact on fairs and international travel, had to be online. This year it will be held in person from September 27 to 30, so the expectation is maximum.
Attended by designers, manufacturers, suppliers, financiers, operators and service providers, both onshore and offshore, WindEnergy Hamburg is the world’s largest wind energy exhibition. Some 35,000 visitors from more than 100 countries will be in attendance, as well as 1,400 exhibitors from leading industry organizations.
According to the 2021 Status of Climate Action Report, produced by the world’s leading climate analysis coalition, Climate Action Tracker (CAT), in order to meet the 2050 net-zero goal of the Paris Agreement, the participation of the wind and solar energy in electricity generation should increase from 7.03% (based on 2018 figures) to 37-72% by 2030.
By 2050, this proportion must increase to 80-82%. This means that by 2050, wind and solar electricity generation must increase between 72.97 and 74.7%. To withstand this seismic growth, state-of-the-art protection and repair systems such as Belzona 5711 and Belzona 5721 play a critical role in extending the life of wind turbine blades and thereby supporting a future of zero net emissions for the planet.
Repair, not replace: state-of-the-art repair and protection system supports a circular economy
According to the European Wind Energy Association, the estimated useful life of a wind turbine is typically 20 to 25 years. Environmental factors such as weather, lightning, icing, bird and insect strikes can severely limit this lifespan . In addition, there is evidence that damage to the leading edges of a turbine blade can reduce annual energy production, with energy losses ranging between 4 and 20% when the damage is severe. By investing in a state-of-the-art, high-performance protection and repair system, asset owners can protect wind turbine blades from environmental damage. In doing so, polymeric systems support a circular economic strategy, as this technology helps extend the life of wind turbine blades. In turn, this reduces the demand for blades to be manufactured and eventually disposed of. Therefore, by giving blades a new life in this way, the combination of Belzona 5711 and Belzona 5721 will help mitigate the carbon footprint of the wind power industry. Additionally, by bypassing the costly process of replacing and disposing of damaged blades, asset owners will also be able to realize significant financial savings.
New thixotropic paste repair system builds on success of Leading Edge Protection (LEP) coating
From Norway to North Dakota, since its launch in October 2019, Belzona’s state-of-the-art protective coating, Belzona 5721, has already been deployed in numerous wind farms around the world with great success. Praised as an “extremely fast and cost-effective solution for leading edge protection” by Jæren Vind Energi AS in Norway, turbine blade coating provides a quick and direct means of protecting leading edges in situ.
Now, based on this knowledge and experience in the field, Belzona has developed Belzona 5711, a thixotropic paste specially designed to be applied in conjunction with Belzona 5721 protective coating (amongst other product options). This 2-part, solvent-free repair paste is specially formulated for the in-situ repair and rebuild of leading edge erosion and impact damage on wind turbine blades.
New state-of-the-art repair paste facilitates fast turnaround time
Commenting on Belzona’s new polymeric solution for the wind industry, Jason Horn, Research and Development Manager, said:
While offering fast cure, Belzona 5711 also has a good pot life allowing the material to contour/form perfectly on the leading edge of the sheet. This eliminates the need for sanding, therefore eliminating a step in the repair process and simplifying the application.” He continued: “Belzona 5711 cures quickly and can be directly overcoated with Belzona 5721 in as little as 30 minutes at 20°C, with no additional preparation required. At the same temperature, it will be completely dry in five hours, allowing the turbine to be back in service the same day.”
He concluded: “With the combination of Belzona 5711 and Belzona 5721, the balance between usability and quick return to service makes the products ideal for on-site repair over a wide range of application temperatures. The long shelf life also makes Belzona an ideal storage material for wind turbine maintenance.”
Key benefits of the new product Belzona Leading Edge Repair VS. Leading competitive products
60 minute cure time at room temperature ensures quick return to service • The product is suitable for all climates (5-40°C) with a maximum coating window of 24 hours. • Cartridge packaging ensures good mix quality and ease of use • Easy to contour and long life ensuring a smooth finish. • No health and safety risks (CMR-free labeling in the EU) • Heavy-duty technology that provides a long-lasting repair • No need to sand before recoating with Belzona 5721, speeding up the process • Three-year shelf life allows flexibility in application planning • Higher volume per cartridge ensures reduced packaging waste • Can be applied in offshore or onshore wind farms • Can be used to repair manufacturing defects
In addition, Belzona 5711 is available worldwide through Belzona’s international distributor network. To ensure that the product is applied correctly, one of the local distributors can train contractors in the application of Belzona 5711 locally on site.
So if you have any questions, don’t hesitate to contact Rodator, we are official distributors!