The great Achilles heel of the energy transition in Europe is not in sight. It’s not the photovoltaic panels or the windmills, but the hidden chips and processors that make them work. Aware of this risk, the European Union has decided to shield its electrical network with a drastic measure. Companies that want to set up renewable projects with community money will have to look for alternatives: Chinese technology is, for the moment, out of the game.
The veto, in detail. Brussels has made public his plan to veto European financing for renewable energy projects that use key equipment manufactured in countries considered “high risk”: China, Russia, Iran and North Korea. The target of this prohibition has a very specific name: investors (or converters). Simply put, these are critical electronic devices that act as processors for photovoltaic plants. Its function is to transform the direct current generated by solar panels into the alternating current that finally reaches our homes and businesses.
The measure, de facto, is already underway. financial institutions They have until May 15, 2026 to notify the Commission of the projects they have in their portfolio. As of November 1, the veto will be total for any new facility that aspires to receive community funds, especially those coming from the European Investment Bank (EIB).
And why now? As pointed out Expansionthe Community Executive has framed this decision under the umbrella of “economic security” and protection against strategic dependence, distancing itself from those who see it as a mere protectionist industrial policy.
The scope of this guideline is capital. As detailed pv magazineis not only limited to traditional solar parks, but extends to vital Battery Energy Storage Systems (BESS). This is a blow to the Asian giants, which usually sell integrated solutions that combine batteries and power electronics. To this fence must be added a strict “anti-cheat law”: the regulation does not contemplate significant exceptions and will affect even those inverters that are physically manufactured in Europe, as long as the parent company is controlled by entities from these risk countries.
The ghost of the national blackout. The forcefulness of the EU responds to a tangible fear. The Commission bases its veto on intelligence reports and classified information provided by several Member States that warn of a very serious threat: cyberattack and “remote shutdown.” Since the investors are connected to the internet and manage critical operational data of the electrical grid, a foreign actor could use them as a Trojan horse. Siobhan McGarry, Commission spokesperson, has been blunt: “In practice, this could involve a remote shutdown of Member States’ networks, causing national blackouts.”
This is not science fiction. The great blackout that Spain and Portugal suffered on April 28, 2025 empirically demonstrated the vulnerability of the network. Although acts of deliberate sabotage were ruled out at the time, the official report from the European grid (ENTSO-E) concluded that the collapse was directly linked to a large voltage swing caused by the unexpected disconnection of photovoltaic inverters. This precedent has revived in Brussels the ghosts of 5G and the decision to corner firms like Huawei and ZTE in the telecommunications sector.
A shot in the foot for Spain? Brussels’ theory is firm, but it collides with an uncomfortable reality: the overwhelming dependence on the Asian giant. According to data provided by SCMPChina currently controls 80% of the global inverter market, with brands such as Huawei and Sungrow leading the world ranking.
In Spain, the scenario is even more monopolistic. As revealed by the European Solar Manufacturing Council (ESMC)that close to 70% of the inverters installed in our country are of Chinese origin. Huawei alone accounted for 36.5% of installations in 2023, followed by Sungrow (29.7%) and GoodWe (14.5%). Despite warnings from Brussels, the Spanish Government maintains a divergent position and continues to certify dozens of Huawei devices for use in sensitive networks, assuring its allies that they do not pose a risk.
However, the shock wave of the European veto is already breaking projects at the national level. As we explain in Xatakathe Generalitat of Catalonia has recently had to backtrack on the award of its public network macro project (XCAT) to the alliance formed by Sirt and Huawei. The fear of having to dismantle the infrastructure in less than a year to comply with new European regulations has left a 127 million euro contract up in the air.
Unfounded fear of costs? There are many open questions. Will this veto paralyze renewable deployment in Europe due to lack of supply or cost overruns? The European industry assures that there is no reason for panic. According to the ESMCthe current production capacity in the EU exceeds 100 GW annually (compared to a demand of about 65 GW). Furthermore, the Commission points to Japan, South Korea, Switzerland and the United States as reliable alternative suppliers.
Regarding the economic impact, the data dismantles the myth of a drastic increase in prices. As stated Euronewsthe cost of inverters barely represents 5% of the total budget of a solar park. An analysis by Wood Mackenzie It is estimated that replacing Chinese components Western technology will only increase the total cost of large-scale projects by 2%. A “minimal extra cost”, according to Brussels, in exchange for shielding the network.
The “boomerang effect.” This strategy of Western isolation has a silent but gigantic parallel consequence. By expelling China from European energy and telecommunications networks, Beijing is being forced to create a 100% autonomous technological ecosystem.
Chinese entities, such as Tsinghua University or Huawei itself, are registering an unusually high volume of patents in photolithography to be able to manufacture its own cutting-edge chips without depending on the European ASML. In parallel, they are building solid alternatives to Western Artificial Intelligence standards (like NVIDIA’s CUDA monopoly). By closing the door, Europe and the United States could be incubating a totally uncontrollable and independent global technological competitor.
Outrage in Beijing. As expected, China’s reaction has been immediate. The Chinese Chamber of Commerce in the EU (CCCEU) has flatly rejected the accusations through of statements collected by Euronews. Chinese spokespersons accuse Europe of politicizing commercial products, demand “technological neutrality” and warn that this “over-securitization” of green components could damage the confidence of international investors. For its part, Beijing insists that its technological products have no political purposes.
Furthermore, the veto comes with a fundamental limitation: Brussels can only block access to community funds. It does not have the legal power, for now, to prohibit a private company from purchasing Chinese technology with its own money. Therefore, according to Expansionthe Commission is strongly urging Member States to replicate this directive in their national public tenders.
However, the legal clamp is narrowing. This is only the first step before the imminent review of the Cybersecurity Regulation (CSA 2) and the application of the NIS2 Directive on critical infrastructure, regulations that will end up imposing binding restrictions throughout Europe, regardless of the origin of the funds, although countries such as Spain are accumulating delays in their transposition. As an outstanding technical note, the EU has yet to address what will happen to critical passive components (such as IGBT transistors), which are inside Western inverters but often come from Chinese factories.
Energy sovereignty as the ultimate goal. The decision of the European Commission, led by Ursula von der Leyen, certifies a total paradigm shift in the old continent. Europe has internalized, based on geopolitical crises, that the ecological transition is not only about installing more panels and reducing CO2 emissions; It consists, fundamentally, of not changing dependence on Russian gas for dependence on Asian technology.
The message that Brussels sends with this blockade of financing is resounding: there is no point in guaranteeing clean, cheap and inexhaustible energy thanks to the European sun and wind, if the main switch that gives light to our hospitals, factories and homes can be turned off remotely, with a single click, from a server located ten thousand kilometers away.
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