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Unexplained Electronic Components Found in Denmark’s Energy Equipment Imports, Investigation Underway

Unidentified electronic components have been discovered in imported energy infrastructure equipment in Denmark, raising concerns over potential security vulnerabilities in the country’s critical power systems, according to industry group Green Power Denmark.

The components were found during a routine inspection of printed circuit boards intended for use in Denmark’s energy supply network. The discovery has prompted an internal investigation to assess the nature and intent behind the components’ inclusion.

“We don’t know how critical it is or whether there are bad intentions behind it,” said Jorgen Christensen, technical director at Green Power Denmark, in a statement to Reuters. “But these components should not be present in infrastructure equipment.”

Christensen did not disclose the origin of the equipment, the specific technology it was intended for (such as solar power systems), or which parties are conducting the investigation.

The Danish Ministry for Preparedness and Resilience declined to comment on the situation, and no responses were received from the Justice Ministry, Energy Ministry, or national intelligence services regarding whether a formal government-led inquiry had been initiated.

The incident comes at a time of heightened international attention on supply chain risks and cybersecurity threats to critical infrastructure, including power grids and renewable energy assets.

“This is highly concerning. It is important that an investigation is underway,” said Walburga Hemetsberger, CEO of SolarPower Europe, who emphasized the broader implications for the continent’s energy security.

Christensen noted that while the components could have been included for benign reasons — such as being part of a multi-purpose circuit board design — their unexplained presence in systems designated for energy infrastructure is unacceptable.

“It’s possible the supplier had no malicious intent. We can’t say at this point, but that doesn’t change the fact that these components shouldn’t be there,” he said.

The development follows a separate report by Reuters last week, which revealed that U.S. energy officials had found unauthorized communication devices in Chinese-made solar inverters and batteries, capable of bypassing cybersecurity firewalls and threatening grid stability.

The Danish case, first reported by local media outlet Berlingske, adds to growing scrutiny of imported technologies used in national infrastructure projects, particularly from unknown or sensitive origin sources.