As a clean and renewable energy source, wind energy has garnered growing attention worldwide. At the Climate Ambition Summit in December 2020, President Xi Jinping stated that by 2030, China’s carbon dioxide emissions per unit of gross domestic product (GDP) will drop by over 65% compared with 2005 levels; the share of non-fossil fuels in primary energy consumption will reach around 25%; and the total installed capacity of wind and solar power will exceed 1.2 billion kilowatts. The establishment of the dual carbon goals of peaking carbon dioxide emissions by 2030 and achieving carbon neutrality by 2060 not only demonstrates China’s ambition in energy development, but also signals that the new energy industry, represented by renewable energy, will experience accelerated growth in China.
Driven by policy requirements and the 14th Five-Year Plans of various provinces, the demand for wind power remains highly sustainable. In accordance with the requirements of the State-owned Assets Supervision and Administration Commission (SASAC), by 2025, central enterprises should make significant progress in optimizing their industrial and energy structures, with the installed capacity of renewable energy accounting for over 50% of their total power generation capacity. Meanwhile, based on the long-term development goals outlined in the 14th Five-Year Plans and new energy installation plans issued by Inner Mongolia, Xinjiang, Gansu, Hebei and other regions, 29 provinces and municipalities have clarified their targets for new wind power installations as of now. It is estimated that the cumulative new installed capacity of wind power during the 14th Five-Year Plan period will reach 313 gigawatts (GW). 2021 marked the final year of subsidies for offshore wind power. With the advancement of large-scale offshore wind power projects in 2022, many offshore wind power projects have successfully achieved grid parity. A substantial increase in the delivery and grid connection of offshore wind power is expected in 2023, with the total new installed capacity of offshore wind power under the 14th Five-Year Plans of all provinces exceeding 50 GW.
Wind power generation relies on consistent wind resources. Consequently, onshore wind farms are mostly constructed in inland northwest regions, mountainous areas, and coastal areas, while offshore wind power has emerged as a key direction in the global wind power sector. In 2022, the global newly installed wind power capacity reached 77.6 GW, including 68.8 GW of onshore wind power and 8.8 GW of offshore wind power. From 2010 to 2020, the global offshore wind power capacity recorded an average annual growth rate of nearly 30%. By the end of 2020, the cumulative installed capacity of globally operational offshore wind power had reached 35.2 GW. The International Renewable Energy Agency (IRENA) predicts that offshore wind power will maintain a robust growth trajectory in the future — the cumulative installed capacity is projected to hit 370 GW by the end of 2031 and could reach 1,000 GW by 2050. Offshore wind farms are also moving further out to sea and into deeper waters, with distances from the shore exceeding 100 kilometers and water depths surpassing 100 meters, indicating a clear trend toward long-distance and deep-sea development.
Wind farms are generally located in remote areas, especially offshore ones. Networked control, inspection, and maintenance operations all depend on reliable and stable network communication systems. To meet the demands of modern wind farm management, enabling operation and maintenance personnel to quickly and easily monitor the operational status of outdoor wind turbines and enhance the informatization management level of power stations, systems such as intelligent automation, networked high-definition video surveillance, and intelligent inspection have become standard configurations.
The development of unmanned and intelligent wind farms has given rise to numerous application scenarios: installing high-definition network IP infrared cameras on wind turbines for unified video surveillance management, video recording, and real-time video inspection; conducting 24/7 monitoring and recording of wind turbine operations and the entry of maintenance personnel into the tower tubes, with real-time images displayed on the large screens in the dispatching room, allowing on-duty staff to monitor equipment operation in real time and assist maintenance personnel in identifying equipment faults; and implementing a monitoring and operation and maintenance system that combines unmanned aerial vehicle (UAV) inspection, manual inspection, and remote inspection. All these intelligent applications rely on a reliable network foundation, and wireless networks are undoubtedly the most critical component.
What are the challenges in wind farm networking?
1.Private Network Construction Difficulties: Only a dedicated private network can ensure the security and reliability of wind farm control, inspection, operation, and maintenance systems. Wind farms are often situated in complex geographical environments (e.g., coastal areas, mountainous regions, deserts) with information points scattered over vast areas spanning tens or even hundreds of square kilometers. Conventional wireless communication systems fall short in transmission distance. Laying optical cables is not only extremely costly but also time-consuming. Post-construction optical cable installation for networking and transmission is particularly challenging unless cables were laid during the initial construction phase.
2.Service Complexity: First, wind farm operation, management, control, and maintenance involve a wide range of intelligent systems that need to support the transmission of multimedia information, including data, video, and voice. Second, the network must carry operational data and video from control and maintenance systems, support the access of inspection personnel’s terminals (such as mobile phones and tablets with Wi-Fi capabilities), and enable the networking of mobile equipment (such as UAVs, maintenance vessels, and emergency repair vehicles). Addressing the interconnection of all these systems poses a significant challenge.
3.Harsh Operating Environment: Wind farms are exposed to complex geographical and topographical conditions, along with severe operating environments (e.g., extreme temperatures, strong winds, thunderstorms, and high corrosion). Communication equipment with poor environmental adaptability, low reliability, or substandard quality will lead to frequent system failures. For wind farm operators, such failures not only impact operational efficiency but also result in exorbitant maintenance costs under these harsh conditions. Currently, only a handful of carrier-grade or military-grade wireless systems targeting the mid-to-high-end market — such as the iMAX Wireless Metropolitan Area Network System — can deliver the required high quality and reliability.
4.Cost-Effectiveness: Benefiting from new energy industry policies, wind farms have experienced rapid growth supported by subsidies. However, the phased reduction of subsidies has exerted significant pressure on the industry, making cost reduction an urgent priority. Traditional optical cable-based networking is gradually becoming obsolete. Additionally, most wind farms operate continuously around the clock. Balancing system reliability with cost savings has become a key consideration in wind farm networking solutions.
Drawing on its years of experience in wireless networks and a deep understanding of wind farm networking requirements, Guoxin Longxin has launched a wireless metropolitan area network solution for wind farms based on the iMAX Wireless Metropolitan Area Network Private System. This solution is currently the most practical and cost-effective option available in the industry.
The iMAX Wireless Metropolitan Area Network System is highly suitable for building large-scale wireless private networks with ultra-long transmission distances. The iMAX-6000 and iMAX-8000 series products hold excellent application prospects for constructing dedicated private networks for wind farm management and control. Its core technical advantages for wind power applications are as follows:
- Communication Distance: Under line-of-sight conditions, even the smallest iMAX 5G dedicated communication system with an integrated antenna — such as the point-to-multipoint iMAX-8000H — can easily achieve coverage with a radius of 10 kilometers. The point-to-point mode can reach a maximum transmission distance of over 100 kilometers.
- Transmission Bandwidth: The iMAX-8000H is a 600 Mbps point-to-multipoint communication system, while the iMAX-6000 offers point-to-point communication speeds of 150 Mbps, 300 Mbps, and 600 Mbps, fully meeting the bandwidth requirements of wind farm networking.
- Stability, Reliability, and Security: The products have been proven in numerous projects in harsh outdoor environments, including water conservancy, oil, and forest fire prevention, making them highly suitable for wind farm operations. Leveraging years of technical expertise, Guoxin Longxin can design highly reliable networks for users by incorporating advanced technologies such as hot-standby routing and ring network construction supported by the iMAX system. The iMAX Wireless Metropolitan Area Network System also supports a variety of security technologies, including wireless packetization, data encryption, VLAN, VPN, and firewalls, ensuring the security of the user’s private network.
To meet diverse service requirements, Guoxin Longxin’s iMAX-ACG600 series metropolitan area network Wi-Fi dual-mode wireless gateway system offers an optimal balance of versatility and cost-effectiveness for wind farms. The iMAX-ACG600 supports both iMAX wireless metropolitan area network technology and Wi-Fi (2.4G IEEE 802.11b/g/n), and is equipped with one local Ethernet port, functioning as a multi-network convergence gateway. It combines the ultra-long transmission distance, high bandwidth, and high reliability of wireless private network technology with support for 2.4 GHz standard wireless local area network (WLAN) device access, enhancing the adaptability of wireless networking and enabling more flexible and optimal wireless networking solutions for users.
For wind farms, access network deployment can be realized by pairing the iMAX-8000H Wireless Metropolitan Area Network (MAN) Base Station (BS) with the iMAX-ACG600 Specialized WiFi Base Station. Leveraging the iMAX 5G Wireless Private Network Module, a wireless MAN spanning tens of kilometers can be established to meet requirements such as wind turbine control, condition monitoring, video surveillance, and remote management. Supporting technologies including VLAN, VPN, VRRP routing hot backup, and firewall, the system delivers a cost-effective networking solution for wind farms while ensuring security and reliability. Equipped with a 2.4G standard WiFi module, the iMAX-ACG600 enables WiFi coverage around wind turbines, at substations, and other locations, facilitating the access of operation management, inspection, and emergency repair terminals. Boasting high bandwidth, large capacity, and multi-service capabilities, it is truly a powerful tool for wind farm private network deployment.
In summary, the iMAX Wireless MAN technology provides an excellent solution for wind farm private network construction, covering the networking of wind turbines, access of video surveillance points, as well as the construction of WiFi systems for inspection and emergency repair.
Topology Diagram of Wireless Private Network System for Mountainous Onshore Wind Farms:
The demand for wireless metropolitan area network (MAN) private networks is even more urgent for offshore wind farms. A schematic diagram of the typical networking topology is shown below:
The iMAX Wireless Transmission System provided by Guoxin Longxin boasts unique technical advantages and outstanding performance that are unmatched by other wireless broadband devices, including support for multiple networking modes, IP67 protection standard, long-distance transmission, high bandwidth, strong anti-interference capability, high reliability, easy installation and convenient maintenance. Meanwhile, it can not only realize networking between wind turbines spanning tens or even hundreds of kilometers, but also achieve 100-meter-level WiFi coverage around wind turbines — these are the unique advantages of Guoxin Longxin’s solution.
Particularly in offshore wind farms and wind farms in the Gobi Desert of Northwest China, the high performance and superior quality of the iMAX Wireless Metropolitan Area Network System can be fully demonstrated. It should be emphasized that the iMAX system has extremely powerful image processing capabilities, which can support the stable transmission of large-capacity IP high-definition video surveillance data streams. The video definition, fluency and color reproduction are equivalent to those of optical fiber transmission, which is essentially different from low-end wireless products modified from WiFi.
A large number of mobile terminals are also used in the daily operation, maintenance and management of wind farms, such as vehicles, ships and UAVs, all of which require network connectivity. Such ultra-long-distance mobile communication can be achieved by the Huanyou Low-Frequency MESH Mobile Communication System. Taking the real-time video transmission of DJI UAVs as an example, the Huanyou Flybird1400 can provide an excellent solution:
Schematic Diagram of Mobile Communication Networking Application for All Scenarios in Wind Farms (Vehicles, Vessels, UAVs, etc.)：
Based on years of technical expertise and project experience in successfully delivering projects across the new energy sector, Guoxin Longxin is able to tailor-make the optimal wireless network system designs and provide the most suitable solutions for users.
