Elektra-GlobalConnect 1 (GC1): A short Denmark-Germany link
The Elektra-GlobalConnect 1 (GC1) submarine cable is a 44 km fiber-optic connection between
Gedser, Denmark, and
Rostock, Germany. Owned by GlobalConnect, it is listed as in service and has been operational since 2000, according to GeoCables' records. This cable forms part of the dense network of cross-border connections in the Baltic Sea region, which facilitates high-speed data transfer between northern Europe and continental Europe.
What makes GC1 particularly interesting is its short length and its role in a corridor with multiple alternative cables. Despite its limited geographic span, the cable contributes to the redundancy and capacity of the Denmark-Germany route. However, several technical details, such as design capacity, fiber pairs, and supplier, remain undisclosed in public sources, leaving some aspects of its technology open to speculation.
Quick facts
| Name | Elektra-GlobalConnect 1 (GC1) |
| Length | 44 km |
| Ready for Service (RFS) | 2000 (GeoCables database value) |
| Owner | GlobalConnect |
| Status | In service |
| Design Capacity | Not disclosed |
| Fiber Pairs | Not disclosed |
| Supplier | Not disclosed |
| Technology | Not disclosed |
| Landing Points | Gedser (Denmark), Rostock (Germany) |
🗺 Show Elektra-GlobalConnect 1 (GC1) on the interactive cable map
Route
The Elektra-GlobalConnect 1 cable connects Gedser, Denmark, to Rostock, Germany, across the Baltic Sea. Gedser, located on the southern tip of Denmark's Falster island, is a key landing site for several cables, including
Baltica,
Germany-Denmark 3, and
GlobalConnect-KPN. Rostock, a major German port city on the Baltic coast, is similarly a hub for submarine cables, hosting connections such as
C-Lion1 and GlobalConnect-KPN. The short distance between these two points reflects the compact geography of the Baltic Sea, making this a relatively straightforward cable route.
Submarine cable routes are typically surveyed using sonar and other geophysical tools to identify suitable paths with minimal risk of damage from underwater hazards such as rocks, ship anchors, or fishing activity. Once the route is approved, cables are laid by specialized ships equipped with cable-laying equipment. In shallow waters like the Baltic Sea, cables are often buried under the seabed using plowing or jetting techniques to protect them from external damage. Repairs, when needed, involve pinpointing the fault location, retrieving the affected section, and splicing in new cable. While these methods are standard industry practices, specific details about GC1's installation and maintenance have not been disclosed.
Why it was built and what it carries
The Elektra-GlobalConnect 1 cable was built to enhance connectivity between Denmark and Germany, two economically and technologically interdependent countries. It serves as part of the broader Baltic Sea cable network, which supports data exchange across northern Europe. While the exact data types and volumes carried by GC1 are not publicly documented, submarine cables like this typically handle internet traffic, private data networks, and other telecommunications services.
History: what can be established
GeoCables records indicate that GC1 became ready for service in 2000. No public conflicts about this date have been identified in other industry sources, though the absence of detailed documentation means the timeline cannot be independently verified. The cable has remained in service since its installation, contributing to the region's connectivity.
Capacity and technology
The design capacity, fiber pair count, supplier, and specific technology used in GC1 have not been disclosed in public sources. Without operator documentation, attributing these values would be speculative. Given its relatively short length, it is reasonable to assume that GC1 employs standard optical transmission technologies, but the lack of confirmed details prevents further analysis.
Latency: the physics
The theoretical one-way light propagation delay for GC1, calculated over its 44 km length, is approximately 0.2 milliseconds. The round-trip time (RTT) floor for the wet segment is about 0.4 milliseconds. Real-world latency measurements would be higher due to additional factors such as land-based network tails, terminal equipment delays, and routing inefficiencies. No live measurements are currently available for this cable.
Redundancy: what happens if it breaks
If GC1 were to experience a fault, redundancy for the Denmark-Germany corridor is provided by other cables landing at both Gedser and Rostock, such as GlobalConnect-KPN. This alternative ensures continued connectivity between the two countries. Repairing GC1 would involve standard submarine cable maintenance practices, including fault localization and cable retrieval, followed by splicing and re-deployment.
Bottom line
- Elektra-GlobalConnect 1 (GC1) connects Gedser, Denmark, to Rostock, Germany, across 44 km of Baltic Sea.
- Owned by GlobalConnect, the cable has been in service since 2000, according to GeoCables records.
- Design capacity, fiber pairs, supplier, and technology details are not publicly disclosed.
- Theoretical latency for the wet segment is approximately 0.4 ms RTT, but real-world latency would be higher.
- Redundancy is available via other cables in the corridor, such as GlobalConnect-KPN.