Submarine Power Cables: Power Cables Leading the Future of Global Energy Transportation - Technological Breakthroughs and Advantages
As countries worldwide develop their renewable energy capabilities, governments are exploring innovative ways of cross-border transmission to promote energy sharing. Submarine cables are becoming increasingly popular for transporting underwater electricity from one country or region to another. Several large-scale projects are already underway in Europe, and we can expect this technology to expand to other regions, supporting global green transformation quickly.
Recent estimates suggest that by 2032, the size of the underwater power cable market may exceed $32.86 billion, with a compound annual growth rate of 8.5%, compared to a value of $14.6 billion in 2022. As governments and private companies seek reliable and efficient methods for long-distance power transmission in recent years, the demand for submarine power cables has significantly increased. Many are connected to offshore wind farms, island power systems, and cross-border, and based on the vast global renewable energy pipeline, the market is expected to grow significantly. The growth of the offshore wind power industry will support industry growth, and governments around the world are increasingly supporting cross-border power sharing to accelerate green transformation.
In recent years, with the increase in research and development investment, people have created stronger and more efficient submarine cables that can transmit electricity over longer distances. This has attracted more investment into the industry and encouraged companies to seek power-sharing agreements. It is expected that the performance and capacity of submarine cables will continue to improve in the coming decades, supporting the expansion of the renewable energy industry.
Power cables transmit and distribute electrical energy, commonly used in urban subterranean power grids, power station outgoing lines, internal power supply of industrial and mining enterprises, and submarine transmission lines across rivers and seawater.
The characteristics of power cables:
1. Reliable power supply: Power cables are laid underground or underwater and not easily affected by external factors such as climate change and mechanical damage, thus having high reliability.
2. Not occupying ground space: As power cables are laid underground or underwater, they do not occupy ground space, making them an ideal transmission method for cities or areas with limited ground space.
3. No use of poles: Power cables do not require the installation of poles, which can reduce the impact on urban landscapes and lower maintenance costs.
4. Simple operation and maintenance: The laying method of power cables is simple, the line structure is relatively simple, and operation and maintenance are convenient.
5. High cost: The cost of power cables is relatively high, especially when laying long distances or large cross-sections; the cost will be higher. At the same time, the construction process of cable heads is relatively complex, and it is difficult to detect fault points promptly, increasing maintenance costs.
Application of power cables
1. Urban power supply: Due to the characteristics of not occupying ground space and not affecting the city's appearance, power cables have been widely used in urban power supply.
2. Power plant outgoing lines: Power plants need to export electrical energy and transmit it to various users, and power cables are an important means to achieve this goal.
3. Internal power supply in industrial and mining enterprises: In industrial and mining enterprises, power cables transmit electrical energy from substations to various electrical equipment, achieving a safe and reliable power supply.
4. Underwater power transmission across rivers, lakes, and seas: When crossing rivers, lakes, and seas, power cables can achieve underwater power transmission, avoiding the difficulties and maintenance costs of installing elevated lines.
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