Showing posts with label Sustainability. Show all posts
Showing posts with label Sustainability. Show all posts

Tuesday, 13 January 2026

Powering Vodafone’s Mobile Network with Solar Energy in Germany

Iberdrola has brought its first solar park in Germany into operation, with the renewable electricity generated at the site now supplying Vodafone’s mobile network nationwide. The project represents a growing convergence between energy and telecom infrastructure, as mobile operators look to secure reliable and sustainable power sources to support expanding network demands.

The solar park is located in Boldekow in the state of Mecklenburg-Western Pomerania and marks Iberdrola’s entry into onshore photovoltaic generation in the German market. The site covers an area equivalent to more than 65 football pitches and is equipped with around 80,000 solar panels. Once fully operational, the installation is expected to generate up to 53 gigawatt hours of electricity each year, with the entire output dedicated to Vodafone under a long-term power purchase agreement.

For Vodafone, the project provides a direct and predictable supply of renewable electricity for its mobile infrastructure across Germany. The annual energy output is sufficient to power around 3,000 mobile base stations, supporting the radio access network and associated systems that underpin nationwide mobile coverage. As networks continue to evolve to handle higher traffic volumes and increased densification, access to stable and locally generated energy is becoming a strategic consideration alongside spectrum, sites and backhaul.

The environmental impact of the solar park is significant. By replacing conventional grid electricity with solar generation, the project is expected to reduce carbon dioxide emissions by approximately 20,000 tonnes per year. Over an anticipated operational lifetime of around 30 years, this contributes meaningfully to emissions reduction targets while aligning network operations with wider sustainability objectives.

From an infrastructure perspective, the project illustrates a shift in how telecom operators source energy. Rather than relying solely on indirect mechanisms, such as renewable energy certificates, operators are increasingly entering direct supply agreements linked to specific generation assets. This approach improves transparency, strengthens energy security and creates a clearer relationship between network growth and renewable energy investment.

For Iberdrola, the Boldekow solar park complements its existing presence in Germany, where the company already operates offshore wind assets in the Baltic Sea. Expanding into onshore solar generation allows for a more diversified renewable portfolio and demonstrates how utility-scale energy infrastructure can be closely aligned with the needs of digital networks.

The project has also delivered local benefits, including regional investment during construction and long-term contributions to municipal revenues. This underlines how renewable energy developments tied to telecom infrastructure can support local economies while addressing national connectivity and sustainability goals.

As mobile networks progress towards higher capacity, lower latency and greater automation, their energy requirements will continue to grow. Projects such as Iberdrola’s solar park supplying Vodafone’s mobile network show how renewable energy is becoming a foundational element of modern telecom infrastructure, rather than a parallel or secondary consideration.

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Tuesday, 3 December 2024

Deutsche Telekom's Hydrogen-Powered Mini-Masts

Earlier in the year we wrote about Deutsche Telekom's Mini-Mast a.k.a. “Cell Tower To Go”.  Last year, DT set a new benchmark in sustainable technology with the deployment of hydrogen-powered antennas at the Nibirii Festival in Germany. This initiative replaced the traditional diesel generators with hydrogen fuel cells to provide eco-friendly energy for mobile base stations. The hydrogen is sourced in a CO₂-neutral process, marking a significant step towards green innovation.

For anyone who doesn't understand what hydrogen fuel cell is, this video has a good explanation.

At the festival, a hydrogen-powered mast supported 30,000 attendees with seamless LTE and 5G connectivity. The fuel cells, developed by SFC Energy, ensured reliable, uninterrupted service for 28 days, showcasing their potential for large events, emergencies, and remote areas. This shift underscores Deutsche Telekom's commitment to combining sustainability with technological advancements.

Additionally, compact mobile masts and stage-mounted small cells enhanced coverage and user experience. These innovations promise to redefine mobile connectivity, emphasizing rapid deployment and reduced environmental impact.

You can read the full story here.

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Monday, 26 August 2024

O2 Telefónica Deutschland's Sustainable Phone Mast in Bavaria

It's amazing to see that the German operators are always sharing a lot of interesting trials and results. Last month O2 Telefónica announced that they have put Bavaria's first mobile phone base station into operation that operates completely independently of the general power supply. The press release said:

In Sindlbach, in the district of Neumarkt in der Oberpfalz, photovoltaic modules and biomethanol fuel cells supply the newly erected mast with sustainable energy. O2 Telefónica is thus closing a white spot for its local customers. They can now surf and make calls using the modern 5G standard, 4G (LTE) and 2G (GSM). O2 Telefónica is working on closing the last white spots and driving forward the network expansion quickly and sustainably.

The new mobile phone mast in Sindlbach is located in the middle of agricultural and forestry land. A power line to operate the technology is lacking far and wide. The innovative solution: at the mobile phone tower in Sindlbach, the energy is generated directly on site and emission-free. The main source of energy is a photovoltaic system. The electricity is temporarily stored in large lithium-ion batteries and is therefore always available. A biomethanol fuel cell supplies the energy for days with little sunshine. This alone could supply energy for two months in continuous operation with just one charge. The system is controlled using state-of-the-art cloud technology and AI. This makes it possible to switch automatically between the two energy sources as required. The self-generated energy on site saves over 13,000 kilowatt hours of electricity per year compared to a conventional installation.

In spring 2024, O2 Telefónica launched the first mobile communications site in Germany in Kirtorf, Hesse, that operates without a conventional power connection. In the video, Dag Hüdepohl, Senior Engineer Infrastructure, explains the goal O2 Telefónica is pursuing with this innovative concept.

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Thursday, 20 June 2024

Ecotelligent's Wooden Masts

Ecotelligent is on a mission to enable telecommunication in a more human environment by applying the science of wood construction into building of communication towers and masts. This allows them to significantly reduce the CO2 emissions of building the towers and make the landscape more pleasant for people.

Last year, Vantage Towers announced that it has installed the first wooden structured telecommunication mast in cooperation with the Finnish start-up Ecotelligent: 

The Ecopol tower was erected as one of two wooden masts in Rhineland-Palatinate as part of a pilot project, as announced by Vantage Towers in October 2022. The installation of the second Ecopol tower is expected to take place in Leiwen, Germany, in the third quarter of 2023; further locations in Germany are being considered. With the construction of wooden structured telecommunication infrastructure, Vantage Towers, together with Ecotelligent, is marking the beginning of a more sustainable mobile communications industry and digitalisation. According to the manufacturer, the Ecopol towers, which are built from recyclable wood, have a significantly lower carbon footprint than comparable masts made of steel or concrete. In addition, they have an attractive, modern design and blend in better with their surroundings - which increases the acceptance of telecommunication infrastructure among the population. 

The use of sustainable materials for Vantage Towers' infrastructure is another component of the company’s sustainability strategy, complementing efforts to make its own infrastructure more energy efficient and reduce resource consumption. For example, the company already reached its first major green milestone in 2021: since then, all the electricity Vantage Towers uses to operate its infrastructure has been procured from renewable energy sources such as wind, solar or hydro power. In addition, pilots are underway to produce renewable energy directly at the sites with wind turbines and solar panels, and to replace diesel generators with hydrogen engines.  

You can see some more details of wooden telecommunication masts in the video below:

Glad to see that other countries are also considering deploying these environmentally friendly masts in the near future.

Friday, 17 May 2024

KDDI's Power Backup Solutions

Over the last few years you might have read multiple blog posts on our blogs (see related posts below) about how KDDI is preparing for disasters by having all kinds of backup solutions. In the last six months they have taken this even further by taking about their bendable solar cells and lighter backup batteries.

In some situations the base stations have to be installed at locations where it is not possible to deploy solar cells for power. In these locations, KDDI is working with partners to use next generation "perovskite" solar cells which are thin, light and flexible so it can be wrapped around the poles and generate a reasonable power all day long. 

Here is a video (no subtitles, but none needed):

You can learn more about this here.

Another innovation being tested by KDDI is the use of zinc secondary batteries to strengthen power outage countermeasures during disasters. While backup power supply equipment is effective as a countermeasure against long-term power outages during disasters, the problem is that it cannot be installed or expanded due to the load capacity of the building. 

Quoting from the Google translated article:

Zinc secondary batteries are approximately 50% lighter than the lead-acid batteries used in many base stations, allowing for more space to be installed, while having twice the capacity for the same size, extending base station operating time. This can be extended up to 72 hours. 

At base stations, there is an urgent need to install or expand large-capacity backup power supply equipment as a countermeasure against long-term power outages such as during disasters. Zinc secondary batteries are lightweight, allowing more space for installation, and are the same size as lead-acid batteries, allowing base stations to operate for long periods of time, so they are expected to contribute to maintaining communications during disasters. In addition, since it does not contain harmful lead and there is no risk of heat generation, installation work can be simplified, and it is expected to contribute to the acceleration of the expansion of 5G areas.

In this demonstration, we plan to operate a base station that uses zinc secondary batteries as backup power supply equipment in a real environment for one year, confirming its operation through seasonal changes in temperature and humidity, and conducting power outage tests.

Looking forward to hearing about the results of both these initiatives.

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Monday, 21 August 2023

'Story of the Edge' by Akamai

People share some useful stuff on social networks that I bookmark to visit and write later. This was shared by John Francis Nolan nine months back or so. I have just managed to watch it and definitely worth a share here.

Prof. Ramesh K. Sitaraman is currently a Distinguished University Professor and the Associate Dean for Educational Programs and Teaching in the College of Information and Computer Sciences at the University of Massachusetts at Amherst.  He is best known for pioneering content delivery networks (CDNs) and edge computing services that currently deliver much of the world’s web, videos, edge applications, and online services. As a principal architect, he helped create the Akamai network, the world’s first major content delivery network (CDN) and edge computing service. He retains a part-time role as Akamai’s Chief Consulting Scientist. 

Late last year he delivered a talk 'Living on the Edge for a Quarter Century: An Akamai Retrospective' on The Networking Channel. The following is the abstract of the talk:

As Akamai and the creation of the “edge” turn 25, we look back at the key role that the edge has played in the evolution of internet services. The story of the edge starts in the late 1990s when servers were deployed worldwide to provide content delivery services for web pages and videos. The quest to move dynamic content and application logic closer to users created the first edge computing services a few years later. The growth of the edge that now spans thousands of locations has dramatically increased the scope and importance of services that critically rely on it. This has created new challenges in operating the edge at scale and securing it from sophisticated attacks. Further, as the carbon footprint of the edge grows rapidly, reimagining a sustainable “zero-carbon” edge that is powered by renewable energy poses a key direction for future research.

His talk is embedded below and the PDF copy of his presentation is available here.

You can view the author's publication page here.

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Monday, 12 June 2023

Du's Solar Sites in UAE

du mobile telecommunication services, the second largest UAE MNO was launched in February 2007 under Emirates Integrated Telecommunications Company (EITC), a public joint stock company incorporated in Dubai through Ministerial Resolution No. 479 of 2005 issued on 28 December 2005. As of 2021, du has 6.7 million (39%) of UAE mobile subscribers and 236,000 fixed line subscribers.


In their latest sustainability report, du said:

78 sites that run completely on solar panels, helping us save 360 tCO2 during the year

  • Diesel savings of approximately 1.4 million litres/year (a total carbon footprint reduction of 3,714 tCO2/year)
  • Additional 100 solar sites planned for installation in 2023

Surprisingly it is difficult to find how these sites look like. The picture above is from a LinkedIn post by Ibrahim Gedeon. The only other place I have seen these is in this Tweet:

It would be interesting to learn more. If you have more info or know where to find it, please feel free to add the info in the comments below.

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