2020 Integrated
Management Report
Financial Statements
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Sustainable use of resources

Energy Management

Cellnex has recently approved its
Energy Transition Plan
accelerating its plan to reduce their emissions

The energy transition is Cellnex’s great challenge for the upcoming years. The Global Energy area is finalizing the Cellnex’s Energy Transition Plan, for which the Sustainability department is collaborating by setting appropriate guidelines in carbon emissions reduction calculation and SBTi management. The aim is to achieve emission reduction targets of 50% by 2030 and 100% by 2050. Energy transition plan will be a key lever to achieve Cellnex Carbon Footprint reduction goals via, amongst other actions, making sure that energy supplies to Cellnex are from renewable sources.

The Energy Transition Plan will be approved formally during Q1 2021 despite already first pillar, green energy consumption goals, has been already approved. This plan will detail the actions to be taken to accomplish the established corporate goals as well as the sensitivities to go beyond or accelerate the established timeliness and will also include the new companies integrated during 2020 as well as a clear action plan for those integrated in 2021 or later.

The Energy Transition plan is based on the four main levers of energy management:

  • Energy 4.0 principles like smart metering or digitalization of energy related processes and procedures.
  • Purchase of renewable energy (considering the different mechanisms available: Power Purchase Agreement (PPA’s), Guarantees of Origin, etc.).
  • Energy Efficiency (Offer the same service but with a reduction of energy consumption).
  • Renewable energy self-generation, mainly through photovoltaic production onsite to reduce electricity consumption from the grid.

In 2021 already 40% of Cellnex energy usage is green energy certified with Guarantees of Origin

The Energy Transition Plan will be implemented in all the countries in which Cellnex operates. In some, specific actions have already been taken: 

Thanks to these actions that are currently under way in the above-mentioned countries, in 2021 approximately 40% of Cellnex’s energy consumption will be green energy certified with Guarantees of Origin, without considering the increase in scope, derived from the latest acquisitions, especially the acquisition related to CK Hutchinson. Moreover, Cellnex will actively promote and closely work with its customers to ensure that 100% of group’s energy will be green by 2025 for the actual perimeter, and in not more than 3 years for any new acquisition.

Additional energy volumes in current or in future Cellnex geographical areas will be included within the Energy Transition plan. The possibility for Guarantees of Origin will be mandatory part of the Contracting model, as will sleeving Power Purchase Agreement clauses. Ad-hoc Power Purchase Agreement accords will be an instrument which Cellnex will monitor closely for countries with certain volumes while virtual or financial Power Purchase Agreements will be constantly explored.

In 2021 already 40% of Cellnex energy usage is green energy certified with Guarantees of Origin

Ten-year Power Purchase Agreement (PPA) between Cellnex Spain and Endesa

Endesa and Cellnex have signed a long-term bilateral contract (PPA) by which Endesa will be the preferred supplier of 100% of Cellnex's energy in Spain for the next ten years. A minimum of 20% of the energy contracted will be 100% produced from renewables.

The relationship of trust between the two companies works both ways, as Cellnex has been declared Endesa's preferred supplier in terms of network.

The significance of the agreement reinforces the partnership with Endesa in the field of energy supply, also committing specific objectives in the field of renewable energy and promoting the energy transition that allows us to contribute to the objectives of reducing our carbon footprint and our impact on climate change.

As part of the actions carried out in regard to energy efficiency, during 2020 ISO 50.001 certification has been obtained for Spain and a global model for further certification to the rest of the countries has been stablished, as there is the intention to implement ISO 50.001 in the rest of the countries of the group in the coming years (2025).

Apart from Cellnex’s Energy Transition Plan, several initiatives have been launched to keep improving performance in terms of energy efficiency in all geographical areas with different scale and scope. Additionally, some pilots are being run and/or evaluated for further implementation. For example, the investment in new broadcasting transmitters with lower power consumption, replacement of AACC for free-cooling systems, replacing UPS and light fittings, etc.

In addition, collaboration projects are under way with other entities, for example a project with Enertika to implement photovoltaic self-consumption facilities in their main telecommunications centres.

Energy efficiency projects in Spain

In Spain, five energy efficiency projects were developed. These were:

  • Free-cooling installation in 218 centres with a RadiCal fan. This type of cooling system that consumes less energy by using external air to chill water for more efficient air conditioning than traditional systems. The estimated saving was 610 MWh.
  • Installation of photovoltaic cells for self-consumption in Legacy and Installation of photovoltaic cells for self-consumption in On Tower. The estimated saving was 275 MWh.
  • Renewal of broad equipment connected to uninterruptible power supply (UPS) systems in 22 centres in order to reduce energy consumption. The estimated saving was 247 MWh.  
  • Renovation of climate equipment with implementation of free-cooling. The estimated saving was 907 MWh.

The 5 planned initiatives have had an impact of 2,039GW of savings in electricity consumption (vs 1,062 GW planned). In terms of year-based savings, savings have been 3,176 GW (vs. 2,953 GW planned). Additionally, the control and monitoring actions of the setpoint temperature and control logic have had an impact of an additional 0.7 GW in 2020.

Owing to the nature of Cellnex's business, the only material environmental aspect is, energy. Cellnex monitors the organisation’s energy consumption to achieve maximum efficiency and the lowest possible impact on the environment and hence on society. In this regard, for example Cellnex Netherlands, changed the heating of the building in IJsselstein and saved usage of gas. Moreover, in 2020 they dismantled the gas installation and gas-heater, therefore reducing yearly around 22,824m3 of gas.

Most of Cellnex's electricity consumption comes from its sites and, to a lesser extent, its offices. In 2020, the company's total electricity consumption was 694,529,003 kWh (563,003,094 kWh in 2019).

Water consumption

Cellnex's activity does not require the consumption of water. All the water consumed in Cellnex comes from the municipal drinking water network and is limited to the use of the office’s toilets and kitchen. The following chart shows water consumption of Cellnex group in 2020. 

However, Cellnex can help the public and private sector in water management efficiency through different initiatives such as Internet of Things network for Integrated water resources management.

Internet of Things network for Integrated water resources management

Cellnex Spain and Global Omnium, a company specialised in water management, have deployed an Internet of Things (IoT) network in the towns of Burjassot and La Pobla de Farnals in the Valencian Community (Spain) to facilitate integrated water resource management to public and/or private sector entities of these municipalities through data capture and transmission. They have also provided an IoT data management platform, which allows them to have information in real time and to act remotely, either manually and/or automatically, throughout the water cycle.

Adesal Telecom, the Valencian company partly owned by Cellnex and Global Omnium, is responsible for operating and managing the maintenance of these two IoT networks, based on LoRa technology, which facilitate automatic detection of leaks and preventive actions on these, remote meter reading or digital customer service and electronic invoicing, among other services.

Waste management

waste recovery in Cellnex Spain 

Cellnex is not a waste producer, as waste arises from the supplier’s activities. The company is committed to ensuring that waste produced by its suppliers on Cellnex sites during their activity (construction, operation, maintenance and dismantling) is managed and disposed of at a licenced waste treatment operator. Cellnex requests evidence of the proper waste valorisation periodically and encourages its suppliers to find alternatives to waste disposal/incineration when possible e.g. recycling metal used to construct and maintain towers.

Waste management in Cellnex Spain

Cellnex Spain recovered 99,2% of the waste, including hazardous and non-hazardous waste.

Action Areas

Non-Hazardous waste

Hazardous waste


Waste disposal




Waster recovery








Materials and resource efficiency in Cellnex Portugal

Cellnex Portugal have detailed specifications for tower construction that its contractors must follow. These specifications avoid construction waste being generated due to miscalculation and ensure the towers are designed appropriately for Cellnex’s needs.

They have eliminated the use of some materials for durability reasons and will continue to monitor material options to identify opportunities for improving the durability of their towers.

Their contractors are responsible for materials used in preventive and corrective maintenance visits, providing contractors with an incentive to maximise resource efficiency. The towers are designed with the optimal materials so that they are efficient, and thus minimise the amount of materials necessary and waste produced in each maintenance intervention on the tower.

Life Cycle Assessment (LCA) for the Telecom Infrastructure Service (TIS)

The Life Cycle Assessment for the Telecom Infrastructure Services began in 2020. Life cycle assessment (LCA) is a methodology standardised by ISO 14040:44 (2006) that systematises the acquisition and generation of information on the environmental aspects of products, services and processes by analysing inputs (consumption of raw materials and energy) and outputs (emissions to water, air, soil, waste and by-products) throughout all stages of their life cycle.

This study provides the organisation with a basis for taking objective decisions regarding sustainable development, identifying opportunities for improving the whole system and comparing technically viable and functionally equivalent alternatives. The main goals of the TIS LCA are:

  • Identification of critical points
  • Identification of environmental impacts generated along the value chain
  • Minimising the risks of transferring impacts from one process to another
  • Obtaining rigorous information for decision-making

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