To help us achieve our ambitious climate protection goal, we are working on gradually reducing the electricity consumption involved in our business processes. One of our measures s to use energy-efficient information and telecommunications technology to continually optimize our operational processes and our network infrastructure. We have tracked progress in this area using the Energy Consumption CR key performance indicator (CR KPI) since 2010. This KPI shows the amount of energy consumed compared to our revenue figures. We also record the carbon footprint of our business activities using the CO2 emissions CR KPI. Due to the price erosion in ICT services and the resulting decrease in revenues, our Energy Consumption CR KPI continued to increase despite the clear improvements in energy efficiency we achieved in 2012. We are therefore currently looking into designing a KPI that more effectively reflects our performance in the area of energy efficiency. For a detailed description of the CR KPIs, go to Strategy & Management.
Experts from Power and Air Condition Solution Management GmbH (PASM) reviewed energy use and procurement at Telekom for efficiency, environmental friendliness and supply reliability in 2011. Following up this review, the 2020 Energy Concept was discussed internally.
That is why we decided not to purchase RECS (Renewable Energy Certificates System) certificates in 2013 for energy used from the German power grid, which totaled at around 2,965 GWh in 2012. In our opinion, it makes more sense both environmentally and economically under CR strategy to instead invest in reducing our energy consumption and increasing our energy efficiency.
One important objective is to optimize consumption (demand site optimization) through avenues such as generating our own power to cover peak loads. We are setting up additional, highly efficient cogeneration plants for this purpose. We also use the waste heat produced by our ICT equipment to heat our buildings and are reducing energy consumption by using fresh air for cooling.
Six cogeneration plants were set up in 2012 with an electrical output of 50 to 250 kW and 15 more are planned to be installed in 2013. We also optimized more than 100 air conditioning systems in 2012 and are planning to commission the optimization of another 150 in 2013. In addition, we conducted three pilot projects on waste heat recovery in early 2013.
40 percent higher energy efficiency for central cooling system for network node in Munich.
We developed and commissioned an innovative energy concept in the course of an integral planning process to update our central cooling system for the supraregional network node in Munich, Germany.
From now on, the central cooling system will not just cool the network node in summer, but also be used to recover ICT waste heat to heat the building in the winter. This means that energy will be used twice: firstly, for network infrastructure operations and, secondly, for heating our building in the form of waste heat.
However, the cogeneration plant used to generate the power with an installed electric output of 250 kW will do more than just generate local power and heat. With a peak load management system developed especially for the plant, it will also be able to balance out peak loads in the power grid. In order to optimize our air conditioning systems, we equipped 15 large ventilation systems with new, highly efficient radial fans that cool the network node with fresh air via a self-optimizing control system. This enabled PASM to considerably improve the energy efficiency of cooling and power supply to the network node. Efficiency increased by more than 40 percent.Find out more
PASM (Power and Air Condition Solution Management GmbH) is a subsidiary of Deutsche Telekom AG. PASM is responsible for procuring, provisioning and delivering power, including the associated support services, within the Deutsche Telekom Group.
The Group subsidiary, Power and Air Condition Solution Management GmbH (PASM), was certified under the new ISO 150001 standard for energy management systems in 2012. In addition to requiring extensive energy data management and technical measures, the ISO 50001 standard, which went into effect in Germany in April 2012, also requires strategic and organizational innovation. PASM set up a systematic innovation management process to meet these requirements. The company collects and analyzes suggestions for improvement and new ideas from the Group as well as from external parties in an ongoing process. If assessed positively, the suggestions are then integrated into PASM's energy management system. In 2012, PASM set up systems for fresh-air cooling at data centers and network nodes on the basis of suggestions made. In addition, systems that use waste heat generated by data processes were installed to heat buildings. PASM also integrated its available energy storage systems as key components of its smart energies power supply grid.
The company is planning to conduct a monitoring audit in 2013. In preparation of the audit, PASM has taken various measures including revising its energy policy and modifying operative processes in order to more firmly integrate energy efficiency into the daily work routines of planners and service technicians. Under the 2012/2013 energy program, the company is planning to set up additional cogeneration plants to generate both electricity and heat with a primary energy efficiency of up to 90 percent. The program also includes other pilot projects on waste heat recovery, a program to eliminate deficiencies in network nodes and upgrading around 150 air conditioning units with energy-efficient fans.
Throughout the Group efforts are under way to increase the proportion of energy generated from renewable resources in overall energy consumption.
In 2012 Magyar Telekom Plc. purchased 53,816 GWh of renewable energy, which accounts for almost 25% of its total electric energy consumption.
In Croatia, two new wind-solar electricity-generating systems were installed for base stations in the Hrvatski Telekom mobile networks during the reporting period.
In October 2012 T-Mobile Netherlands started using the 286 solar panels installed on the roof of its headquarters in The Hague. The move is in line with the company's sustainability policy and was developed in cooperation with the city authorities. T-Mobile Netherlands expects a saving of 55,000 kWh representing the average energy consumption of 15 households.
Solar energy programs
Installation of two integrated rooftop photovoltaic systems with a total capacity of 222.64 kWp on OTE buildings in Attica began in the first quarter of 2013. Globul installed nine new hybrid systems with photovoltaic panels in the reporting period, bringing the total number of photovoltaic sites to ten. At Cosmote 19 base stations are now supported by hybrid photovoltaic systems and four new wind turbines were installed.
Besides increasing the amount of renewable energy consumed, Deutsche Telekom subsidiaries are implementing a range of measures to save energy and make their operations more energy-efficient.
- At the Montenegrin subsidiary Crnogorski Telekom, for example, energy consumption was reduced through a number of different measures in the reporting period. Rectifier plants with a low efficiency factor were replaced by ones with a high efficiency factor, which saved 700 MWh/year. Additional savings were achieved by replacing the central air-conditioning system (303 MWh/year) and by introducing an automatically delayed start for backup diesel generators (159 MWh/year).
- For the first time, Hrvatski Telekom reported a reduction in electricity consumption. Total electricity consumption in 2012 was 1.3 percent lower than in 2011.
- T-Mobile Austria is promoting an energy-efficient infrastructure to combat the increasing amount of energy being used by information and communications technology (ICT) and steadily reduce its own carbon footprint. In a pilot project, T-Mobile enacted a hybrid concept for renewable energy from photovoltaics and wind with an energy storage back-up system.
- A photovoltaic system and a wind turbine were installed in December 2012 as part of the project and will be connected to the power grid by May 2013. T-Mobile Austria provided the space to set up the systems as well as the structural analysis for additional masts and energy storage facilities. The goal of the research project, 80 percent of which is being financed by the Climate and Energy Fund, is to gain enough renewable energy expertise to be able to install additional systems in the future.
- In the Czech Republic T-Mobile is determined to minimize any increase in power consumption caused by new sites or new services such as 3G . In developing its 3G network T-Mobile therefore decided to share sites with a competitor. Through shared MW links T-Mobile saved 500,000 kWh more in 2012 than it would have done if it had exclusively owned the site. Instead of indoor technology rooms and containers, T-Mobile is, wherever possible, building RRH/RRU-type sites. Since these remote radio head/unit sites consume less power than indoor sites, no air-conditioning is needed and there is no feeder loss. This saves 5,800 kWh per site and year.
- Thanks to a variety of measures implemented in the reporting period and before, T-Mobile Czech saved a total of 54,812,636 kWh of electricity. The measures included 2G network modernization and the installation of solar and wind energy systems, more modern air-conditioning systems and more efficient temperature management technology in company buildings.
- In 2012 a number of measures were implemented to reduce the electricity consumption of OTE's telecom equipment. The completed shutdown of the HellasPack infrastructure (a digital telecommunications network) brought an estimated gain of around 720 MWh. The set temperature in all cooled premises was increased by 2° C (from 24° to 26°), saving an estimated 750 MWh of energy per year while switching off unused equipment is bringing savings of up to 7,162 MWh a year. In 2012 a start was made with the modernization of rectifiers by replacing old equipment with new high-efficiency rectifiers (estimated annual energy savings: 550 MWh), and with the modernization of air-conditioning equipment by installing new split or VRV systems with an ecologically sound refrigerant (estimated annual energy savings: 500 MWh).
- Cosmote is working on the renovation of its main datacenter to reduce air-conditioning losses and consequently lower overall energy consumption. Furthermore, 100 new cooling systems in base stations and 11 new air-conditioning cabinets now use outside air to cool the telecom equipment room when environment conditions permit. 39 new rectifier cabinets with a special battery isolation compartment allow a higher temperature to be set in the telecom equipment room. And the single RAN technology rollout is in progress at base stations with old telecom equipment being replaced by new equipment that consumes less energy.
- Globul has continued to install free-cooling (alternative air-conditioning) and hybrid (diesel-battery-Photovoltaic) systems at its base stations. This has reduced their generators' diesel consumption and thus helped to reduce the company's CO2 emissions.
- During the reporting period Cosmote Romania advanced its trials on different means of energy consumption reduction and two measures were selected for implementation: base stations were retrofitted for improved free cooling at 300 sites; and cooling efficiency was enhanced by separating hot aisles from cold aisles and/or creating plenums for improving the efficiency of air-conditioning units at two core network sites.
- In 2012 Magyar Telekom continued with its fresh air cooling system program at its data centers. This reduces the need for air conditioning and hence electricity consumption. Moreover, the company initiated a smart cooling technology pilot project to optimize air conditioning systems so that they consume less energy. A battery cooling pilot project is also being implemented with aim of safeguarding batteries so they can tolerate greater fluctuations in temperature. In order to save energy from gas and distance heating Magyar Telekom once again replaced some furnaces and modernized heating centers as well using the waste heat from some datacenters for heating purposes.
Effective facility management is a key component in Telekom's efforts to achieve its ambitious climate protection goals. That is why Telekom conducts an energy-related inspection of heating and ventilation systems as part of all facility renovation work and are constantly working to make our facility management practices even more energy-efficient.
- Energy analysis and measures: In order to lay the foundation for targeted energy efficiency improvements, we continued the studies initiated in 2012. We conducted six microanalyses as well as pilot projects on waste heat utilization at two Munich sites in 2012. The results of these pilot projects should enable us, for example, to generate heat from central cooling equipment and using large heat pump systems located in ventilation ducts. This means that we can tap the energy used to operate the Telekom networks to heat our offices. Another waste heat project that had been planned at a location in Frankfurt was not realized. The project proved not to be economically feasible, contrary to our initial estimates. The results of the six microanalyses will be put into practice in 2013.
We developed a series of measures based on the results, including adjusting the operating times for room ventilation of office and warehouse areas to the need for fresh air in those areas. This project is scheduled to start in October 2013 and to be completed in 2015.
- LED lighting: We began switching over to LED lighting in common areas such as stairwells, hallways and basements in December 2011. An additional twelve locations in Germany were equipped with LED retrofit lamps in 2012 as part of this program. The lamps can be used with traditional sockets.
Under the LED@Office project, which was initiated in 2011, we are also planning to equip all Telekom offices in Germany with LED lighting as a standard fixture. In 2011, we equipped some rooms with the new lighting and discussed the results in cooperation with different Telekom departments in Germany in order to identify in advance possible advantages and disadvantages of using LED lighting in offices and technical rooms. We then commissioned the technical services provider TÜV Rheinland to analyze the results and switched over to LED lighting at other test sites. The analysis showed that the number of test sites was not sufficient to provide us with statistically sound conclusions. That is why we decided to postpone our evaluation of the project, which was originally scheduled for 2012, to 2013. In early 2013, we drafted a decisoin proposal to evaluate the advantages and disadvantages of using LED lamps compared to T5 fluorescent lamps.
We are also planning to use LED lighting in Telekom Deutschland's technical areas. We conducted a pilot project at the end of 2012 in the technical rooms at a location in Frankfurt, which were partially refitted with LED lighting. We also equipped the Entertain showroom at the same location with LED lamps.
Green buildings are a key factor in reducing energy wastage and promoting the efficient use of this valuable resource. The measures mentioned below are symptomatic of Deutsche Telekom's Group-wide efforts to improve its energy efficiency performance.
- T-Mobile Macedonia and Makedonski Telekom moved to a new office in an energy-efficient building, which is expected to lead to reduced energy consumption in 2013.
- In Croatia Hrvatski Telekom's energy certification project involved issuing and publicly displaying energy certificates for buildings in its ownership, and by the end of 2012, energy certificates for 16 buildings had been issued. This project is not important only in terms of meeting legal provisions in Croatia, but also because it represents an important strategic guideline for future management and maintenance of properties owned by the company. Hrvatski Telekom systematically applies innovative solutions in the green building and energy efficiency field to reduce energy consumption and greenhouse gas emissions as well as to increase the quality of working space.
- In Greece a recently completed Cosmote office building in Paiania has been certified to Class A in terms of energy consumption. The building's sustainability-enhancing features include an innovative elevator design using regenerative technology, highly energy-efficient equipment (e.g. shading systems, free night cooling and lighting with dimming and occupancy sensors), a sophisticated air-conditioning system with reduced greenhouse gas emissions, and solar thermal water heating as an on-site renewable energy source. As a result, a marked reduction in energy consumption is expected from 2013 onwards. Moreover, this is the first office building in Greece to be registered for the prestigious LEED® Gold Certification.
- In April 2012 the Polish subsidiary PTC signed a leasing agreement that foresees its headquarters being transferred to a "green" building in June 2013.
Significant improvement in Romtelecom's carbon footprint
In order to reduce fuel consumption and flue gas emissions Romtelecom installed new heating boilers (with an overall thermal capacity of approx. 1.5 MW) in its condensing operations at nine sites. This led to a reduction in fuel consumption of around 15,000 Nm³ per year and flue gas emissions by 40 percent. By installing new inverter-type air-conditioning equipment in all its new projects, the company cut its electricity consumption by 50 percent. Since this new air-conditioning equipment also uses ecologically sound refrigerants, there has also been a reduction in harmful atmospheric emissions. The installation of PVC windows in 25 new projects reduced heat losses by 20 percent while the installation of motion sensors in hallways and twilight sensors for exterior lighting in ten new projects cut the company electricity consumption by 30 percent.