Romulo

Overview

The Romulo submarine cable is a domestic system that connects two key locations within Spain, serving as a vital link between the mainland and the Balearic Islands. Spanning 237 kilometers, it crosses the western Mediterranean Sea to provide reliable connectivity between the eastern coast of the Iberian Peninsula and the island of Mallorca. The cable is owned and operated by Red Electrica, Spain's national electricity transmission system operator, and forms an integral part of the country's infrastructure. Since becoming operational in 2011, Romulo has played an important role in enhancing communication and energy transmission capabilities within Spanish territory.

Unlike international submarine cables that connect multiple countries or continents, Romulo is a domestic system designed to meet the specific needs of Spain. Its relatively short length and targeted scope make it a unique asset in the region, focusing on intra-national connectivity rather than long-haul or global data transmission. The cable is a critical component for ensuring robust communication and energy exchange between the Spanish mainland and the Balearic Islands.

Route and Landings

The Romulo cable connects two landing points in Spain: Sagunto on the mainland and Santa Ponsa on the island of Mallorca. Sagunto, located near Valencia on Spain's eastern coast, is a historically significant port city and a strategic location for mainland connectivity. Santa Ponsa, on the other hand, is a coastal town in the Balearic Islands, a popular tourist destination and an important part of Spain's island territories. These two locations were selected to optimize the cable's utility and accessibility while minimizing its length across the Mediterranean Sea.

The cable's 237-kilometer route crosses the Balearic Sea, a portion of the western Mediterranean. This relatively short span allows for efficient data and energy transmission between the mainland and the island. The Balearic Islands, including Mallorca, are a critical part of Spain's economy and culture, and the Romulo cable serves as a technological lifeline, ensuring that these islands remain well-connected to the rest of the country. The route's design reflects the strategic importance of integrating island regions with mainland infrastructure.

Ownership and History

Romulo is wholly owned and operated by Red Electrica, the Spanish state-affiliated company responsible for managing the country's high-voltage electricity transmission network. The company's involvement in submarine cable infrastructure aligns with its broader mandate to ensure reliable interconnection and energy distribution across Spain, including its island territories. By owning and operating Romulo, Red Electrica underscores its commitment to maintaining seamless connectivity within the nation.

The cable became operational in 2011, marking a significant milestone in Spain's efforts to modernize its domestic connectivity infrastructure. As one of the earlier examples of intra-Spanish submarine cables, Romulo set the stage for subsequent advancements in the country's telecommunications and energy transmission capabilities. Its commissioning reflects Spain's strategic focus on integrating its mainland and island regions through robust and reliable infrastructure.

What Our Measurements Show

Our live monitoring of the Romulo cable system provides valuable insights into its performance and reliability. The cable is monitored across 12 distinct corridors, allowing for comprehensive analysis of its operational metrics. The best recorded round-trip time (RTT) for data transmission is 0 milliseconds, indicating near-instantaneous communication under optimal conditions. On average, the RTT is measured at 133 milliseconds, reflecting consistent and reliable performance for a cable of its length and scope.

The monitoring data underscores the cable's efficiency in serving its intended purpose as a domestic link between the Spanish mainland and Mallorca. The relatively short distance of 237 kilometers contributes to its low latency, making it a dependable choice for communication and energy transmission within the region. These measurements highlight the cable's role in supporting the connectivity needs of Spain's Balearic Islands and ensuring their integration into the national infrastructure network.