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The Northern European countries are renowned for their picturesque landscapes and high living standards. However, these regions also endure some of the harshest winter climates on Earth, presenting significant challenges to various sectors, particularly telecommunications. The extreme weather conditions in winter in these countries—characterized by sub-zero temperatures, heavy snowfall, and gale-force winds—can severely disrupt transportation, power supply, and communication networks.
In addition to the challenges from the harsh climate, the evolving geopolitical landscape in Europe has heightened the need for strengthened national security measures to protect telecommunications networks. The long border between Russia and NATO countries poses significant challenges for telecommunications, especially in Nordic countries with their extensive and difficult-to-protect borders. The risk of cyberattacks on power systems, points of vulnerability that if damaged would severely disrupt communications, is also on the rise. These combined threats reinforce the necessity of ensuring highly resilient and robust telecommunication networks, particularly for critical emergency systems such as TETRA or POLYCOM.
To address these heightened challenges, governmental authorities and telecommunication network operators are investing significant efforts to enhance the resilience and reliability of their networks to ensure they can withstand not only the impact of extreme cold but also of these increasingly volatile security threats. For example, the City of Graz in Austria has prepared a comprehensive guideline for crisis management during power blackouts which specifies the requirements for maintaining continuous communications infrastructure; the guideline indicates that the Federal Ministry of the Interior is currently making efforts to increase the availability of this system to 72 hours, especially in the conurbations and the district capitals. According to the latest information from the BMI, availability in Graz should already be mandated for 72 hours.
The accumulation of ice and snow on telecommunication towers and cables can lead to physical damage. Ice buildup can add significant weight, causing structures to collapse or power lines to snap. When cold, icy weather hits, transmission lines can undergo galloping—a slow, “skipping rope” movement of the power lines. Galloping happens when rain freezes on the lines, and steady winds cause adjacent lines to sway and occasionally touch each other, potentially leading to power outages. Additionally, the expansion and contraction of materials due to temperature fluctuations can lead to structural fatigue and eventual failure.
Cold weather can significantly impact signal propagation. Snow and ice can absorb and scatter radio and microwave signals, reducing their strength and increasing latency. This is particularly problematic for satellite communications and high-frequency radio links, which are crucial for remote areas. Severe cold can damage cell towers and equipment, leading to service outages. Snow and ice buildup can cause antennas to malfunction or misalign, reducing signal strength and coverage.
Freeze-thaw cycles compromise telecommunication infrastructure. Repeated freezing and thawing can weaken the structural integrity of towers and masts, increasing the risk of collapse. These cycles can also cause soil to expand and contract, leading to ground movement that may destabilize the foundations of telecommunication structures. Also, temperature fluctuations can lead to condensation inside equipment housings, causing short circuits and the corrosion of electronic components. Maintaining optimal humidity levels within equipment enclosures is challenging, increasing the risk of moisture-related damage.
Low temperatures can affect the performance of electronic components, leading to equipment malfunctions or failures. Batteries in particular lose capacity and efficiency in extreme cold. Prolonged exposure to cold can also cause materials to become brittle, leading to physical damage such as cracks or breaks in cables and connectors. Batteries, commonly used in uninterruptible power supplies (UPS) and backup systems, suffer from reduced efficiency and capacity in cold temperatures. The chemical reactions within batteries slow down at low temperatures, leading to decreased performance and shorter operation times during power outages.
Power supply issues and maintenance challenges are exacerbated in cold climates. Cold conditions often lead to higher energy consumption for heating telecommunication facilities and maintaining equipment temperature, putting a strain on power supplies. Severe weather conditions, such as snowstorms, can lead to power outages, disrupting telecommunication services. Additionally, many telecommunication sites are located in remote or hard-to-reach areas, making maintenance and repair work challenging and time-consuming. Harsh weather conditions pose safety risks to maintenance personnel, further complicating efforts to conduct timely repairs.
In Northern Europe, the focus on extending backup power duration for critical infrastructure, and particularly for critical telecommunication networks for emergency and security entities such as those complying with the TETRA standard, has intensified in response to the region’s harsh climate and frequent power disruptions. Countries like Norway, Sweden, and Finland have introduced stringent regulations that require critical telecommunication providers to significantly increase the duration of their backup power systems to 72 hours. These regulations are designed to ensure that critical telecommunications infrastructure can operate continuously, even during prolonged power outages, which are becoming more common due to severe weather conditions. In Norway, for example, the Norwegian Electronic Communications Act, enforced by the Norwegian Communications Authority (Nkom), mandates that telecom providers implement backup power solutions capable of sustaining operations for extended periods. This shift towards longer backup durations is crucial for maintaining communication services in emergencies.
Similarly, in Sweden, the Swedish Post and Telecom Authority (PTS) has tightened its regulations to enforce longer backup power requirements. These measures ensure that telecom networks remain resilient, providing uninterrupted services during extended outages. The increasing duration of backup power is not just a regulatory compliance issue but a critical component of disaster preparedness, reflecting the growing recognition of the vital role that telecommunications play in public safety and emergency response. The Swedish Electronic Communications Regulation includes provisions for network resilience, requiring operators to implement robust and long-lasting power solutions, particularly in areas where weather disruptions are common. This trend reflects the growing recognition of the importance of reliable communication networks in maintaining public safety and economic stability during severe weather events.
Germany, for instance, has implemented rigid requirements for its BOS network—a critical communication system used by police, fire brigades, and other security services. This network, which operates on the TETRA (Terrestrial Trunked Radio) system, is essential for emergency services across Europe. To ensure its reliability during crises, Germany mandates that critical sites within the BOS network maintain up to 72 hours of backup power. This regulation underscores the importance of robust and long-lasting power solutions to keep mission-critical communications operational during extended outages. Similarly, Norway mandates that telecommunication operators maintain at least 72 hours of backup power for critical sites, while Sweden has implemented comparable regulations, highlighting the necessity for robust and enduring power solutions. Finland has also done the same, particularly for remote and vulnerable areas prone to severe weather disruptions, ensuring that critical communication infrastructure remains operational under the most challenging conditions.
According to Finland’s Communications Market Act, public communications networks and services must be designed, built, and maintained to ensure high technical quality, withstand normal and foreseeable external interference, enable reliability monitoring, detect significant disruptions, and secure access to emergency services even during network disruptions. Traficom’s regulation on network resilience mandates that telecommunications operators secure the power supplies of their communications network components with emergency power units like accumulators or UPS devices. The regulation classifies network components into priority ratings 1–5, based on the service type, user number, and geographic coverage area, with varying resilience requirements. For instance, critical components like centralized backbone network devices must have longer backup times than lower-priority components.
Given these stringent regulatory requirements, telecommunication operators are compelled to seek innovative and effective solutions for longer backup power to ensure compliance and maintain uninterrupted service. This necessity has driven the exploration and implementation of various advanced technologies and methods to enhance the resilience and reliability of telecommunication networks.
In response to these regulatory demands for extended backup power, telecommunication operators are turning to innovative solutions to ensure reliable service during power outages. To address the challenges of providing reliable telecommunication in extremely cold environments, innovative solutions are being implemented worldwide. One notable approach is the deployment of solar-powered telecom towers with battery storage systems in remote areas of Iceland. These towers harness solar energy during the day and store excess power in batteries for use during nighttime or cloudy days. The integration of solar power has reduced reliance on traditional power sources and enhanced the resilience of the telecommunications network, ensuring continuous connectivity even in harsh weather conditions. Of course, solar power alone is intermittent, driving operators to add batteries. However, with the increasingly frequent and severe climate disruptions common in Europe today, the combination of solar and battery power is not always sufficient, requiring supplementary resilient backup support to meet the extended duration regulatory requirements of 72 hours or more.
The DACH region is at the forefront of telecommunications infrastructure innovation, wherein remote mountainous terrain often is susceptible to power outages. As a result, telecom operators are adopting hydrogen-based fuel cell systems as a reliable backup power source. This technology ensures uninterrupted network service during severe winter storms. Moreover, fuel cells have the added advantage of offering a clean energy profile and resilience, which are extremely important in Europe.
In fact, Germany has made significant strides in integrating different power resources together, including renewable energy sources alongside advanced battery storage for its telecommunications network, deploying large-scale battery systems at various sites to store excess renewable energy and provide backup power; to these solutions fuel cells add resilience and redundancy to ensure uninterrupted power for the long durations mandated by regulations.
Hydrogen fuel cells are emerging as a reliable, long-duration backup power solution for telecommunication infrastructure in cold climates. Unlike traditional batteries and diesel generators, Alkaline hydrogen fuel cells are less affected by low temperatures and can provide a stable power supply during extreme cold conditions that can continue to generate power for as long as fuel is available. Fuel cells generate electricity through a chemical reaction between hydrogen and oxygen, producing water as a byproduct. This process is efficient and does not rely on combustion, making it less susceptible to temperature-induced failures. Germany has been actively investing in hydrogen technology as part of its energy transition. Deutsche Telekom has partnered with companies like GenCell and SFC Energy to develop and test hydrogen fuel cell solutions for mobile sites. These fuel cells ensure uninterrupted power during harsh winter conditions and prove to be a reliable complement or alternative to traditional backup systems for carbon-free energy production at telecommunication sites. The success of this initiative is encouraging further adoption of hydrogen fuel cells across Europe, especially in remote locations and cold climates where hydrogen fuel cells have clear advantages.
Heated shelters and insulation safeguard critical telecommunication equipment from freezing temperatures. These measures maintain optimal temperatures for sensitive components, reducing the risk of cold-induced failures. Heated shelters use electric or gas heaters to keep their interiors warm, while insulation minimizes heat loss, ensuring equipment functionality. In Finland, insulated shelters with integrated heating systems protect telecommunication equipment in remote areas. These shelters are built to withstand extreme weather, ensuring the continuous operation of critical infrastructure. The insulation design also reduces heating energy consumption, making it a cost-effective solution. While the insulation design does reduce heating energy consumption to some extent, these solutions are very expensive and consume a significant amount of power, particularly in harsh climates where heating systems must run continuously. This can lead to high operational costs, making it a less viable option for long-term sustainability in comparison to other energy-efficient solutions.
Utilizing advanced weather monitoring systems allows telecommunication providers to better predict and prepare for severe weather events. Predictive maintenance strategies involve data analytics and machine learning to identify potential issues before they lead to failures. By monitoring weather patterns and equipment performance, providers can proactively address vulnerabilities and schedule maintenance during favorable conditions. For instance, telecommunications companies have implemented predictive maintenance systems that use real-time weather data and equipment sensors to forecast potential failures. These systems have significantly reduced unplanned downtimes and maintenance costs, enhancing the overall reliability of the network during the winter months.
While these systems can be very helpful in reducing disruptions, they do not address the core issue of power outages when they occur. Predictive maintenance and weather monitoring can complement long-duration backup power systems, but they are not substitutes for the robust power solutions needed to ensure continuous network operation during extended grid failures.
Implementing redundant systems and diversifying network pathways can help maintain connectivity even if one component fails. This approach increases the resilience of the telecommunication infrastructure against weather-related disruptions. Redundancy involves having backup equipment and alternative routes for data transmission, ensuring continuous service availability. In the same vein, Norway’s telecommunications network employs extensive redundancy, with multiple pathways for data transmission and backup systems in place. During a severe snowstorm, one of the primary communication links can be severed, but the network can operate seamlessly through alternative routes. This redundancy ensures that critical services remain available during adverse weather conditions.
While redundancy is a valuable strategy for maintaining connectivity during disruptions, it has limitations when faced with the demands of long-duration backup requirements. Redundant systems alone may not provide the sustained power necessary to keep critical infrastructure operational during extended outages, especially in severe weather conditions. The reliance on alternative routes and backup equipment only mitigates short-term disruptions, leaving networks vulnerable to prolonged power failures. In scenarios where grid outages last for days, redundancy without robust backup power solutions, such as hydrogen-based fuel cells, falls short of ensuring the continuous operation of telecommunication services.
Integrating renewable energy sources, such as wind and solar power, with telecommunication infrastructure can provide a sustainable and reliable power supply. These sources are less susceptible to fuel supply issues and can help reduce the overall carbon footprint. But of course intermittent renewable energy solutions alone cannot ensure compliance with increasingly long duration backup power requirements being mandated across Europe. Wind and solar power systems can be paired with energy storage solutions to ensure a continuous power supply even during periods of low renewable energy generation. And in especially harsh winter conditions of sub-zero temperatures and storms, which often occur in remote and inaccessible locations, mountainous terrain, islands and fjords, battery storage has limitations which require additional backup to ensure continuity in these challenging circumstances.
To address the challenges posed by climate change by providing reliable, long-duration 72+ hours backup power essential for maintaining business continuity during extreme weather events, alkaline fuel cells are designed to operate effectively in sub-freezing conditions, ensuring uninterrupted power for mission-critical applications.
Solutions tailored specifically to deliver extended duration backup power in sub-zero conditions, such as alkaline fuel cells from GenCell, have been specifically engineered to operate effectively in extreme cold , with the following features:
These solutions are engineered to minimize operational costs (OpEx) by reducing the energy consumed during the cold start process. The cold start kick-in duration is less than 60 minutes, and the energy consumed during this process is minimal, leading to approximately 30% savings in operational expenses compared to traditional backup power solutions.
Robust and weatherproof, alkaline fuel cells require minimal servicing and maintenance. They can operate effectively even when buried under deep snow, with the hydrogen supply stored outdoors, which enhances their reliability in harsh weather conditions.
The advanced monitoring and management software incorporated in GenCell’s long-duration backup power solutions, allowing for remote control and monitoring of the systems, is especially valuable in cold climates, because it minimizes the need for on-site visits in frigid temperatures or snowstorms when roads are blocked and flight conditions are problematic. The software enhances operational intelligence across multiple units at remote sites, ensuring that the systems are functioning optimally.
Conclusion
European telecom networks must endure some of the most challenging climate conditions on the planet, making robust and resilient backup power solutions not just an option but a necessity. Among the array of strategies available — ranging from heated shelters to advanced weather monitoring — hydrogen-based fuel cells such as the solutions from GenCell offer a distinct advantage. With their cold start capabilities and unparalleled long-duration performance, these solutions provide the reliable, sustainable power telecom operators need to ensure continuous service during extreme weather events.
Moreover, these solutions provide significant environmental advantages, aligning with the industry’s move toward sustainable energy. By integrating advanced alkaline fuel cell technology with tailored benefits for cold climates, telecom operators can not only meet regulatory requirements for long-duration (72+ hours or more) backup power, but also substantially enhance the resilience and sustainability of their networks, ensuring continuous connectivity in even the harshest climates.
Smart telecom providers across Europe working to secure the future of network resilience are well aware of the exacerbating weather and climate conditions and their impact not only on increasingly strict government regulations, but also on operational and business risks. This trend is illustrated by the example of a recently published deal in which a leading European telecom provider issued a tender for multiple emergency backup power systems to ensure 72 hours operational continuity at remote distributed communications sites. After considering different options, the operator selected and contracted to deploy dozens of GenCell® BOX™ hydrogen-fueled backup systems and related maintenance services. By adopting such innovative solutions, telecom operators can enhance the resilience and reliability of their networks, ensure uninterrupted service and support the growing popular demand across Europe to implement sustainable energy practices.
To learn more about GenCell’s 72+hr. long-duration backup power solution for extreme cold conditions, click here.