Undersea Infrastructure in Sweden’s Territorial Sea

Sweden's underwater infrastructure is crucial for energy security, industrial resilience and digital communication. Underwater infrastructure is strategically and critically important to society, but vulnerable.

As part of increasing the ability to protect and anticipate threats to critical infrastructure in the maritime environment, the Swedish Coast Guard publishes a brief report containing the following chapters:

• What is undersea infrastructure?
• The energy sector and its connection to undersea infrastructure
• Energy transmission via undersea cables
• Consequences of cable failure
• Electronic communication and its connection to undersea infrastructure
• Repairing and producing undersea infrastructure
• The differences between high-voltage and fibreoptic cables in the marine domain