German police have arrested a 48-year-old man suspected of conducting a coordinated sabotage campaign against the electricity transmission network in three federal states, using more than 20 homemade rockets and at least 21 launch devices to fire conductive wire onto high-voltage lines near lignite-fired power stations. The suspect, identified as a resident of Gevelsberg in the southern Ruhr area, was detained on Tuesday near the Weisweiler power plant in North Rhine-Westphalia after a week-long operation involving hundreds of officers, drones with thermal imaging cameras and a search that extended to the Hambacher Forst, a forest long occupied by climate activists.
Attacks across three states, three blocks knocked out
The first attack occurred a week ago near the Jänschwalde power plant in Brandenburg. According to the transmission system operator 50Hertz, two short circuits caused the failure of one generation block. Days later, further launch devices were discovered at multiple sites in North Rhine-Westphalia. In Bergheim near Cologne, the devices functioned as intended: several blocks of the RWE Power plant were knocked out for several days by a short circuit. In eastern Saxony, investigators found 21 launch devices near substations, though at most sites no damage was recorded. The three affected states, North Rhine-Westphalia, Brandenburg and Saxony, are the only ones where lignite is still mined and burned for electricity.
The scale of the arsenal is unusual for infrastructure sabotage in Germany. Police recovered more than 20 self-built rockets and at least 21 launch platforms, plus explosives on the suspect's person and a tent rigged with additional charges at the Weisweiler site. At the time of his arrest the man offered no resistance. Autobahn police spotted him on a field track, stopped and detained him; the case then moved quickly. A third confession letter was found at Weisweiler on Monday, and that evening officers observed flashes and bangs consistent with the short-circuiting method, though no new damage was confirmed.
Confession letters frame attacks as climate action
Several confession letters, which police consider authentic and attribute to the suspect, justify the attacks as a fight against fossil fuels. "Electricity generation from fossil fuels is a crime," reads one passage provided to the German Press Agency. The letters also guided investigators to specific sites. Federal Interior Minister Alexander Dobrindt (CSU) described the series as "climate terrorism" by a lone perpetrator. North Rhine-Westphalia's Interior Minister Herbert Reul (CDU) said the suspect "was still on the move and wanted to continue. This game has been ended today." Brandenburg's Interior Minister Jan Redmann (CDU) called him a "misguided lone perpetrator" and pledged consequences for infrastructure security.
Lone actor assessment but investigation continues
All three ministers emphasised the current evidence points to a single perpetrator. Reul stated: "At the moment everything speaks for it being a lone actor and everything from his hand." The Brandenburg police presidency said no indications of further suspects had emerged, though that remains part of the inquiry. The Cottbus public prosecutor's office has taken over the investigation because the first offence occurred in Brandenburg. Charges under consideration include causing an explosive detonation and disrupting public utilities.
Grid held but exposure raises hard questions
Despite the targeted nature of the attacks, the wider transmission network did not collapse. The affected blocks were taken offline by protection systems, and operators managed the losses without cascading failures. Yet the episode reveals a vulnerability: a single individual with rudimentary rocketry and knowledge of line routes was able to disable generation capacity repeatedly across a 500-kilometre span. The Federal Network Agency (Bundesnetzagentur) has not yet published a formal assessment, but the incident will feed into the ongoing review of physical security standards for critical energy infrastructure, a process accelerated after the Nord Stream pipeline sabotage in 2022.
Political fallout and security review
The sabotage series arrives at a politically sensitive moment. The federal government is negotiating the next phase of the coal exit, with RWE having agreed to bring forward the closure of its Rhenish lignite units to 2030. Climate activist groups have staged repeated occupations and blockades in the same region, though mainstream organisations condemn violence. Dobrindt's use of the term "climate terrorism" signals a hardening rhetorical line that may influence the debate over policing of environmental protest. The interior ministers' promise of "consequences" suggests legislative or regulatory changes to harden grid sites, potentially including expanded police powers, mandatory fencing and sensor coverage, and clearer criminal penalties for interference with energy infrastructure.
What happens next
The suspect remains in custody while the Cottbus prosecutor evaluates charges. The Bundesnetzagentur is expected to issue a security bulletin to all four transmission system operators, 50Hertz, Amprion, TenneT and TransnetBW, within days, likely recommending enhanced physical inspections of line corridors near generation sites. RWE and 50Hertz will submit incident reports detailing the protection-system responses. Politically, the interior ministers' conference scheduled for late September will discuss a joint proposal for minimum security standards at substations and overhead-line towers. The first concrete test of any new measures will be whether they can be implemented before the winter heating season, when lignite plants typically run at higher utilisation and the grid operates with thinner margins.
People mentioned
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Jan Redmann
Organisations
RWE Power · 50Hertz · Bundesnetzagentur · Landeskriminalamt Nordrhein-Westfalen · Staatsanwaltschaft Cottbus
