The SwePol cable, a critical 250 km connection between Poland and Sweden established around the year 2000, experienced significant issues that were first reported on Wednesday evening. Data analysis indicated that the energy flow through the cable unexpectedly diminished to zero before 8 PM. Polish network operator PSE reported no initial indications that the failure was caused intentionally, which is a reassuring factor amidst heightened concerns over energy security in the region. Reports state that Poland's electricity system is operating stably and meeting all safety criteria despite this disruption. Repairs are currently underway with expectations set for the cable to be operational again by midnight on Friday.

The SwePol cable allows for the transmission of up to 600 MW of power between Poland and Sweden, serving as a crucial link for energy supply in the Baltic Sea region. The cable runs about 240 kilometers under the sea, connecting the northern-central Polish region near Slupsk to the Sterno Peninsula in Sweden. This incident highlights the importance of maintaining reliable infrastructure, especially in light of ongoing geopolitical tensions that have escalated since Russia’s invasion of Ukraine almost four years ago. The Baltic Sea area has become a focal point for hybrid warfare, frequently seeing attacks aimed at undersea infrastructure.

With the repairs expected to restore the SwePol connection quickly, it remains essential for both Poland and Sweden to continue enhancing their energy security, particularly given the volatile geopolitical climate. This incident serves as a reminder of the vulnerabilities that energy infrastructure faces and the need for vigilance against potential threats to such critical assets.