We are responsible for maintaining an extended network and information technology infrastructure. Some of our most important activities include reducing the electrical power consumption crucial for operation of the network and IT infrastructure and maintaining the appropriate temperature of base transceiver stations (so called BTSs). Reduction of the power consumption is possible thanks to the modern approach we take in the planning and building of base stations and in the use of intelligent BTSs. This modern approach to planning allows for the use of natural methods of heating and cooling, which can reduce power consumption by 20% and even up to 40%. Intelligent BTSs, on the other hand, based on a current load, may temporarily disable unused sectors. BTSs may be powered by green energy, meaning energy coming from renewable energy sources. In our case, these include solar panels and wind power, which are currently being tested.
We also own around 20 sites with exchanges and so-called data centres covering an area of 7,500m2 (in comparison: a full-size football field takes up about 7,600m2). Recent upgrades and the replacement of hardware with more up-to-date and more efficient devices have reduced this area by 200m2, and at the same time reduced the electricity demand by 0.5 million kWh. Continued modernization works will further reduce energy consumption by 15 million kWh annually. These changes will result in a reduction in energy consumption amounting to the annual demand of nearly 4,500 three-person households.
We were the first telecommunications company to receive the “Green Brand” certificate in the Technologies category in 2011. The main objective of the “Green Brand” initiative is to promote companies whose activities include both direct and indirect goals to have a good impact on the environment. The Chapter evaluated the energy efficiency and compliance with emissions standards of our electromagnetic fields. They appreciated the fact that even as early as the design stage of telecommunications facilities, we take into account aspects related to energy efficiency, including installing energy-efficient air conditioning systems, which enable us to reduce energy costs by up to 50%, and by using the remote reading of electricity meters installed at the base stations.