Offshore wind energy is going through a phase of contrast: In addition to significant technological advances, there are new rules of the game in several countries and a more demanding financial environment for large developers. The sector is in full swing, with record-breaking projects and regulatory and macroeconomic challenges that limit their pace of deployment.
In recent weeks, there have been relevant milestones in China, Brazil, Spain and Japan, as well as notable corporate moves in Europe. From the entry into operation of a mega offshore turbine to public consultations on maritime spatial planning, and floating platforms that monitor biodiversity, the offshore wind landscape is evolving rapidly.
China unveils mega turbine, growing environmental scrutiny
Mingyang Smart Energy has launched a new project in waters near Hainan. a 20 MW marine turbine, considered among the largest in the world. Standing 242 meters tall with 128-meter blades, this device is designed for demanding wind zones and can withstand gusts of up to 79,8 m/s, allowing generate the same energy with fewer wind turbines and reduce the occupation of marine space.
The estimate indicates that its annual production could supply approximately 96.000 homes, consolidating the role of offshore wind power in the fight against climate change. Furthermore, its unprecedented size has generated studies on alterations in air currents and thermal distribution in its immediate surroundings, phenomena that, due to their scale, are now more evident.
They investigate how these variations could affect migratory birds, marine fauna and coastal habitats, and its relationship with the environmental impact of wind turbinesAccording to the results, technical adjustments or mitigation measures to balance energy efficiency with the protection of local ecosystems are not ruled out.
Brazil reopens consultation to regulate its offshore wind power
The Brazilian Ministry of Mines and Energy has Public consultation on the criteria for selecting offshore wind energy areas has been reactivated, formalized by Ordinance No. 856. The process, open to contributions until September 1, 2025, seeks to promote sustainable use of the country's offshore wind potential with a clear and transparent regulatory framework.
The methodology, developed by the Energy Research Company (EPE) at the request of the MME, integrates technical, environmental, social and economic criteria, aligned with Marine Spatial Planning and Law No. 15.097/2025. Its purpose is to provide legal certainty to investors and Reconciling wind power with activities such as fishing, sailing, and environmental conservation.
Before opening to the public, the proposal was developed in workshops with the Offshore Wind Energy Working Group, incorporating improvements suggested by industry stakeholders. In addition, a webinar held on July 11 In the state of Pernambuco, the Ministry of Economy and Finance reviewed key aspects and next steps. Documentation and activities are available on official MME channels.
Financial and strategic pressure: the Ørsted case
The Danish company Ørsted, a world leader in the offshore segment, has asked its shareholders a capital increase of 8.037 billion euros, about 46% of its current valuation, to strengthen its balance sheet. The firm faces challenges for cost increases, interest rates and a more uncertain regulatory environment in the United States.
In that country, Ørsted develops the park Sunrise Wind (924 MW), designed to supply energy to approximately 630.000 homes. The sale of stakes in the project is not progressing as planned, and factors such as Inflation, supply chain, and political changes have affected investor interest. Following the announcement, the value of its shares fell by nearly 30%.
The Danish State, the majority shareholder with 50.1%, has confirmed its commitment to contribute 30.000 billion Danish kroner (around €4.018 billion), half of the total. Ørsted has also faced setbacks in other projects in 2023, in addition to changes in its management, in a market that, according to analysts, is becoming less profitable due to the energy crisis and rising interest rates.
Japan accelerates with AI and advanced planning
On the other hand, Japan is pushing to professionalize its deepwater wind developments. ENEOS Renewable Energy has formed an alliance with Shoreline Wind to implement a digital platform based on artificial intelligence covering the entire life cycle of parks, from planning and simulation to operation and maintenance.
This tool searches optimize logistics, weather windows and supply chains, key aspects to achieve the country's objectives: to reach up to 10 GW of offshore wind power by 2030 and between 30 and 45 GW in 2040More than 50 development companies and equipment manufacturers support the platform globally, demonstrating how digitalization is a key strategy for improving efficiency.
Spain focuses on floating wind power and biodiversity
In the BiMEP test area (Vizcaya), the project DemoSATH, led by Saitec Offshore Technologies together with RWE and The Kansai Electric Power, operates a 2 MW floating turbine three kilometers offshore and is part of the boosting offshore wind energy in Spain. Since its connection in September 2023, it generates electricity for about 2.000 households and functions as both an environmental and technological test bed.
This project gives rise to DemoSATH Lab, a living laboratory dedicated to demonstrating the coexistence with other uses of the sea, promote biodiversity and reduce the impacts of floating technology, taking advantage of the new investments in port infrastructureIn them, studies are carried out Underwater noise, ROV wildlife monitoring, and environmental DNA analysis, in addition to evaluating birds and bats with anti-collision systems and high-definition cameras, and testing recycled materials to create microhabitats.
The project also includes barnacle and mollusc farming in the structure, fishing tests with local associations and analysis of the carbon footprint of the park to identify areas for improvement. In a SPA such as the Mundaka-Cabo de Ogoño Marine Area, monitoring provides key data for harmoniously integrating conservation and energy.
Preliminary observations indicate that most of the birds detected are yellow-legged seagulls, with greater presence in summer, without significant changes in the species before and after installation, and a use of the platform as a rest areaData from 2025 will allow for refined conclusions and more precise preventive measures.
From pioneers to maturity: the path of the floating
Floating technology has already demonstrated its viability with projects such as Hywind Scotland Pilot Park, driven by the then Statoil (now Equinor). With an investment of nearly 214 million euros, it was located about 25 km from Peterhead, in waters with depths of 95 to 120 meters and average winds of approximately 10 m/s, to supply energy to approximately 20.000 homes.
This project leveraged the UK and Scotland oil & gas supply chain and demonstrated that floating wind turbines make it possible to extend wind power to deep water where fixed foundations are not viable. With a European base already exceeding 10 GW installed, the estimated global potential for 2030 exceeds 100 GW, opening up new geographical opportunities.
Between technological advances, clearer regulations and financial adjustments, Offshore wind power continues to make steady progress, although it faces significant challenges.: mega turbines requiring environmental monitoring, regulations governing maritime space to attract investors, developers strengthening their financial solvency, and digital tools promising safer, faster, and more efficient construction projects.
