Wind energy has become one of the central pillars of the European energy system , both onshore and offshore. In recent years, wind power has gone from being a promising renewable technology to becoming a key component for security of supply, industrial competitiveness, and achieving the European Union's climate objectives.
In this context, Spain and the rest of Europe are experiencing a decisive moment : floating offshore wind power is beginning to take shape, large electricity companies are reinforcing their investments in offshore parks, and at the same time, interest is growing in mini-wind solutions in urban and rural environments, which allow households and SMEs to produce their own electricity.
Wind energy as a strategic driver for Europe
Across the continent, wind power already provides around 20% of all electricity consumed in Europe , with countries like Germany, Spain, Denmark, Sweden, Portugal, Ireland, and Lithuania easily accounting for a quarter of their electricity demand. This contribution not only reduces emissions but also significantly decreases the need to import fossil fuels.
According to industry data, all the wind turbines installed in Europe prevent the equivalent of unloading approximately 500 large oil tankers full of fossil fuels each year. The economic contribution is also significant: the wind energy sector generates around €52.000 billion annually for European GDP and employs nearly 400.000 people, with projections to exceed 600.000 by 2030 if expansion plans continue.
This push comes at a time when the EU's energy dependence remains a weak point . The 27 member states continue to spend around €500 billion annually on energy imports, primarily gas and other fossil fuels. Expanding wind power capacity, both onshore and offshore, is therefore seen as a direct way to reduce this energy bill and gain energy independence.
The European roadmap involves significant growth in offshore wind energy, especially in the North Sea, which has become the epicenter of offshore expansion . The so-called North Sea Investment Pact aims to reach 300 GW of offshore wind capacity by 2050, with shared commitments between governments, industry, and grid operators to ensure that this ambition translates into concrete projects.
Power grids, permits and auctions: the major bottleneck
Despite the potential, the reality is that electricity grids have become the biggest obstacle to new wind power capacity . In many European countries, there are literally hundreds of gigawatts of renewable projects waiting to be connected, blocked by saturated grid nodes or insufficient planning for new infrastructure.
The European Commission itself has acknowledged this problem and has launched a specific package for grids (EU Grids Package), which proposes better coordination between member states, more interconnections, and a change of approach to managing access requests . The plan is to move from the traditional "first-come, first-served" system to one based on "project availability and maturity," with clear milestones to filter out purely speculative initiatives.
Meanwhile, the sector is demanding that the EU-approved regulations for renewable energy projects be effectively implemented on the ground . Where these regulations have been decisively applied, such as in Germany, the volume of authorized onshore wind power has increased sevenfold in just five years, demonstrating the impact that a well-designed administrative simplification can have.
Another critical point is regulatory stability and the design of support mechanisms. The industry insists on the need for predictable and well-structured contract-for-difference (CfD) auctions that provide long-term visibility on revenues and reduce the cost of capital. Without this framework, it is more difficult for companies to invest in new wind farms, especially offshore, where the figures are particularly high.
Spain looks to the sea: floating offshore wind and the SEA-LIFT project
Spain has a privileged position in terms of wind resources and coastline, but its offshore wind development is clearly lagging behind other northern European countries . The main reason lies in the unique characteristics of its continental shelf: in many sections of the coast, the seabed reaches depths of up to 1.000 meters just 10 kilometers from the shore, which greatly complicates traditional fixed foundation solutions.
To overcome this geographical obstacle, the solution lies in floating offshore wind (FOWP). Unlike wind turbines mounted on fixed structures anchored to the seabed, these floating platforms are held in position by mooring systems and anchors, allowing them to be located in deep waters and further from the coast, reducing the visual and environmental impact in sensitive areas.
The SEA-LIFT project fits perfectly into this scenario. Led by the Environmental Hydraulics Institute of the University of Cantabria (IHCantabria), the National Renewable Energy Centre (CENER), and the Navarre-based company Nabrawind, among other partners, SEA-LIFT proposes an innovative system for lifting and installing wind turbines of more than 20 MW onto floating platforms , significantly reducing operating costs compared to current techniques.
Project managers anticipate cost reductions of three to five times in key phases such as transportation and offshore assembly. The plan is to leverage technologies already proven by Nabrawind in onshore wind farms in other countries, such as its Skylift solution, which allows for the erection of large wind turbines without the need for giant cranes and even in challenging wind conditions, common on coastlines with abundant wind resources.
If consolidated, initiatives like SEA-LIFT could become a cornerstone for the massive deployment of Spanish offshore wind power , in a context where very ambitious power targets are already being discussed for 2035. Furthermore, they align with the Roadmap for the Development of Offshore Wind and Ocean Energy in Spain, which underlines the strategic value of this resource, especially in autumn and winter, when solar photovoltaic generation is lower and electricity demand skyrockets.
Iberdrola's investment commitment to European offshore wind power
While Spanish regulations are finalizing their first offshore auctions, major energy groups have continued to make moves in other markets. Iberdrola has established itself as one of the world leaders in offshore wind , with an ever-expanding portfolio of projects already in operation and under development, primarily in Europe and North America.
The company has invested around €13.000 billion in offshore wind farms with 3.200 MW of installed capacity , spread across the UK, the US, Germany, and France. These operational assets form the basis for new investments of approximately €10.000 billion, aimed at expanding its presence in key European offshore markets.
Among the projects under construction, East Anglia 2 and 3 in British waters and Windanker in Germany stand out , totaling around 2.700 MW of capacity and representing the core of this new investment phase. These are complemented by East Anglia 1 North, a wind farm of approximately 900 MW that already has all the necessary permits and is ready to participate in future auctions in the United Kingdom.
Beyond the wind farms themselves, Iberdrola is fostering an industrial supply chain linked to offshore wind energy, encompassing everything from component manufacturing to specialized services. One example is the electric support vessel for offshore wind farms, commissioned by Bibby Marine and designed by Seaplace, currently under construction at the RÃa de Vigo Shipyard. Equipped with batteries exceeding 24 MWh and low-emission propulsion systems, it is specifically designed to operate at offshore wind installations.
This type of project reinforces the role of industrial hubs like Vigo and shipyards specializing in offshore service vessels , and aligns with the company's advocacy for electrifying the economy and decarbonizing it. The underlying idea is that offshore wind not only produces renewable electricity, but also generates skilled employment, drives growth in other sectors, and contributes to European energy independence in the face of an unstable geopolitical context.
Spain, a leader in onshore wind energy and host of major industry events
While Spain has not yet launched its first commercial offshore wind farms, it has established itself as one of Europe's leading onshore wind power producers . With over 31 GW installed, wind energy has become a cornerstone of the Spanish electricity system , covering around a quarter of the national electricity demand, making it the country's primary source of power generation ahead of other technologies.
This significant presence has led the international industry to look to Spain not only as a market, but also as an industrial and technological platform . The country boasts over 37.000 people working in the sector, a vast network of manufacturers and suppliers, and leading R&D centers, making it a natural location for hosting major professional gatherings.
In this vein, the European association WindEurope has chosen Madrid to host its annual event , highlighting Spain's role on the continental wind energy map. The event will bring together companies, policymakers, and industry stakeholders to address key issues such as accelerating permitting processes, building new electricity grids, the quality of auctions, and combating misinformation surrounding renewable energy.
Holding an event of this magnitude in Spain coincides with the country preparing its first major offshore wind auction . The government has already launched a public consultation on the future bidding system for offshore wind farms, and the first tender is expected to be announced soon. The development of the first gigawatt of offshore wind alone could create up to 4.000 new jobs, according to industry estimates.
In addition to institutional support, wind energy is seen in Spain as an opportunity to strengthen the manufacturing base and ensure that the European supply chain remains competitive with other major economic blocs. Having strong factories and suppliers within the EU is considered key to the EU's strategic autonomy and industrial resilience in an increasingly demanding global environment.
The explosion of mini wind turbines: from the rooftop to the home grid
While large-scale offshore and onshore wind power grab the headlines, another front is gaining momentum: microgeneration and mini-wind turbines , geared towards self-consumption in homes, apartment buildings, small businesses, or isolated installations. Wind, which for years has been associated primarily with large wind farms, is beginning to find its way onto urban rooftops as well.
Globally, installed wind power capacity already exceeds 1.200 GW and continues to grow, with China, the United States, India, Germany, Brazil, and Spain as the main drivers. In this context of general growth, small-scale wind power is positioned as a natural complement to solar photovoltaic energy , especially in climates and locations where the wind blows strongest precisely when the sun is weakest.
By definition, small wind turbines are those installations with wind turbines of less than 100 kW , although in the domestic sector the most common units range between 1 and 5 kW. These are small turbines—approximately one to five meters tall—that can be installed on the roofs of single-family homes, multi-story buildings, or industrial warehouses without major construction work.
These systems generate locally sourced electricity, reducing dependence on the grid and lowering electricity bills , and providing a buffer against potential price increases. Furthermore, they integrate seamlessly with existing solar installations: while the panels perform at their peak around midday on clear days, wind is typically stronger at night, on cloudy days, or during storms, helping to stabilize the supply in a hybrid self-consumption system.
From a technical standpoint, the operation is simple: the wind turns the blades, which in turn drive an internal generator connected to the electrical system . To adapt to the urban environment and the variations in wind direction between buildings, there are two main design families: horizontal-axis wind turbines, more similar to classic windmills and common in open spaces, and vertical-axis turbines, which are omnidirectional and more suitable for facades and rooftops in cities.
Innovation, regulation and the future of small-scale wind power
Small-scale wind energy is not only advancing commercially, but also in the field of research. European projects coordinated by Spanish centers have succeeded in developing quieter, more integrable, and more efficient turbines , designed to coexist seamlessly with the urban environment and minimize vibrations and noise in the buildings where they are installed.
Recent technical studies indicate, for example, that these modular and demountable wind turbines work best when placed on rooftop edges, as the facades act as a kind of ramp that accelerates the breeze as it reaches the top of the building. This increase in air speed can make a significant difference in the annual energy production of each installed unit.
In the Spanish market, solutions specifically designed for urban environments are already available. These systems harness the airflow rising through building walls and convert it into electricity without transmitting vibrations to the interiors of homes. These proposals aim to make it easier for homeowners' associations and SMEs to transition to self-consumption of wind power, whether combined with solar photovoltaics or not.
The government is also starting to take action. The Ministry for Ecological Transition, through the Institute for Energy Diversification and Saving (IDAE), has published specific requirements for creating a label for small-scale wind turbines . The aim is to provide clear information on performance, quality, and technical characteristics, thus supporting the development of a segment that is expected to grow in the coming years.
With these advances, small-scale wind power reinforces the idea that citizens can move from being mere consumers to co-producers of energy , adjusting their demand and generation and gaining a more prominent role in an increasingly distributed electricity system. This vision aligns with the European strategy of fostering local energy communities and a model in which households not only pay for electricity but also actively contribute to its generation.
All this movement, from gigantic wind turbines exceeding 20 MW on floating offshore platforms to small turbines installed on the rooftops of SMEs, points to the same goal: a cleaner European energy system, less dependent on external sources, and with greater participation from citizens and local industry . Spain, with its abundant wind resources, its experience in onshore wind power, its burgeoning offshore wind sector, and the expansion of self-consumption, is well-positioned to ride this wave, provided that grids, regulations, and planning keep pace with the speed already set by technology and investment.
