Ascendi builds, runs, operates, and maintains road networks, which inevitably impact local, social, economic and environmental structures.
Reducing those impacts and promoting an harmonious integration of the infrastructure in its surroundings is a relevant strategic vector for Ascendi’s sustainability.
The conceptualization and implementation of this strategy is based upon the voluntary assimilation of social and environmental concerns, not only in the operational activity development models, but also in our relationship with the entities with whom we have relevant interaction, striving to meet the stakeholder’s expectations and improving the present without hindering the future.
Get to know Ascendi's ESG report for the year 2021. An overview of the organisation's performance in environmental, social and governance issues, with a special focus on Ascendi's strategy and performance leading to the creation of short, medium and long-term value for its stakeholders.
The information is available here:

INTERVENTIONS ON ENVIRONMENTAL EXTERNALITIES:
Interventions on environmental externalities:
1. PROMOTION OF ENERGY EFFICIENCY
Implementation of measures for lighting flows regulation according to the infrastructure needs and the complementary use of LED technology (Ascendi is a pioneer in Portugal on installing LED technology in motorway Interchanges);
2. MONITORING AND MINIMIZING ENVIRONMENTALIMPACT
- Monitoring of infrastructures under construction or built
- Conduct environmental impact studies (EIS) in all built infrastructures
Subcontractors
In order to ensure the alignment of the subcontractors’ activities with Ascendi’s environmental standards, the specifications include environmental issues and the document ‘Best practices on site’ was drawn up.
Environmental management on Site Award - The aim of this campaign is to reward best practices through an award scheme for environmental management performance by assessing:
- Response times to Ascendi’s requests;
- Waste recovery;
- Skills of the professionals involved;
- Use of best environmental practices;
- Implementation of self-control systems;
- Precision and team performance.
Resource consumption and waste management
Waste is managed in compliance with the national legislation in force and based on the assumption that all waste is sent for recovery, thus reducing the negative impact it may have on the environment. In 2020, Ascendi produced 935 tonnes of waste, of which 99% was non-hazardous and 73% was recovered.
Waste management by subcontractors is important to Ascendi, which is why it invests in awareness-raising and training as a means of ensuring that the procedures adopted are in line with its standards. Subcontractors generated a total of 9,103 tonnes of waste in 2020, of which almost 100% was non-hazardous and 99% was recovered.
Waste Recovery
Ascendi’s objective is to increase the reuse of waste that can be recovered within its infrastructures, by incorporating milled waste in the new bituminous mixes to be applied in future repaving, thus promoting the circularity of the materials.
Inputs | Un. | ´19 | ´20 | ´21 |
Waste produced | t | 808 | 935 | 2.213 |
Hazardous waste | t | 26 | 7 | 10 |
Non-hazardous waste | t | 781 | 928 | 2.203 |
Outputs | Un | ´19 | ´20 | ´21 |
Recovered waste | 1 | 588 | 679 | 1.789 |
Water Resources
Considering the importance of reducing water consumption as an effective way of managingresource consumption, Ascendi ensures compliance with the legislation in force in all its operations and promotes various initiatives. Water consumption in 2020 was 8,811 m3, down 6% from the previous year (9,435 m3). This incentive for the responsible, sustainable use of water resources will continue in 2021.
Other initiatives:
- Monitoring of sensitive areas;
- Installation of tailing ponds, with macrophyte beds, constituting a "naturalised" system that is very efficient in capturing pollutants transported in dissolved state or in fine particles, which is a pioneering system in Portugal.

Noise Pollution;
Noise is a relevant issue in infrastructure management, and Ascendi monitors the
locations proposed in the general five-year monitoring plans and locations considered to be
sensitive receptors or which are the subject of complaints. Based on the monitoring results,
whenever technically feasible and with the owners’ agreement, acoustic barriers are implemented to
minimise or eliminate noise In 2020 acoustic barriers were built in more urban areas in order to
comply with the action plan approved by the Portuguese Environment Agency, which increases noise in
the surrounding environment and, consequently, complaints.In the future Ascendi aims to continue its
acoustic barrier projects, minimising noise pollution from its roads for the surrounding
communities.
Acoustic Barriers - 103 KM in 2020
Other initiatives:
- Noise monitoring in sensitive areas;
- Use of permeable sound-absorbing paving wherever feasible;
- Installation of Noise Barriers.

Biodiversity Conservation
Aware of the impact that its infrastructure generates,
Ascendi has a set of initiatives that consolidate its commitment to preserving biodiversity and
protecting speciesIn partnership with Infraestruturas de Portugal, Ascendi is participating in the Life
Lines project, with the objective of reducing animal mortality by identifying species and outlining
measures to prevent animal-related road accidents. A mobile application was developed to identify
species that live near motorways and to record the location of the road where the species appeared in
the Geographic Information System (GIS).
Other initiatives:
- Monitoring of fauna and flora in sensitive areas, especially of endangered species
- Promotion of the conservation of protected species (transfer of stork nests and species conservation campaigns);
- Implementation of "naturalized" wildlife corridors to decrease the barrier effect of the infrastructures;
- World Animal Day - Ascendi celebrated World Animal Day with a video, sent to all employees, on the animals found in the areas adjacent to the motorways and the work carried out to protect species
- International Day for Biological Biodiversity -Ascendi celebrated the International Day for Biological Diversity with the release of a video, sent to all employees, addressing the impact of the company’s activity and the initiatives promoted for fostering biodiversity in partnership with the University of Aveiro. This partnership aims to reduce animal mortality and promote biodiversity across the concession network.
- Replanting of protected tree species(e.g. cork oaks and holm oaks) as a compensatory measure.

3. INTEGRATION OF THE ROADS IN THE LANDSCAPE

Development of Landscape Integration Projects for areas surrounding road infrastructures.

Selection of native species so that the infrastructures can be quickly and harmoniously integrated into their surroundings;

Planting of tree curtains that serve as a protective visual barrier for the houses nearest the motorways.
Strategic Energy Plan
Ascendi’s Strategic Energy Plan (PEE) was developed and approved, guided by the guidelines of the National Roadmap for Carbon Neutrality 2050 (RNC 2050), whose main objective was the establishment of Ascendi’s policies on energy and climate, so that the organization and each person are committed to improving energy performance, both direct and indirect. Ascendi’s energy consumption is spread over 3 main sectors (roads/highways, buildings and car fleet/plant maintenance equipment) and is aggregated, for measurement purposes, as established in the GHG Protocol (by emissions of scope 1, 2 and 3).
Emission management
CO2 emissions in 2021 were of 830.147 tCO2.
Of the total emissions, 0.3% were of scope 1 and 99.7% of scope 3, referring to the trafficof vehicles circulating on Ascendi's roads
Emission management | Un. | ´19 | ´20 | ´21 |
CO2 emissions | tCO2e | 947.581 | 605.709 | 830.147 |
Avoided CO2 emissions | tCO2e | 25 | 1.088 | 1.016 |
Renewable energy production | kWh | 83.119 | 96.659 | 140.082 |
Energy consumption
Ascendi’s energy consumption in 2021 was 69,859 GJ (0.4% more than in the previous year), 100% of which was produced using renewable sources (an increase of 20 percentage points compared to 2020).
Percentage of electricity from renewable sources
Year | % |
´18 | 29 |
´19 | 55 |
´20 | 80 |
´21 | 100 |
Energy consumption | Un. | ´18 | ´19 | ´20 | ´’21 |
Electricity purchased from the grid (kWh) | kWh | 10.895.003 | 10.604.640 | 10.020.935 | 9.002.177 |
Fuel | L | 783.397 | 871.812 | 899.154 | 1.003.710 |
Consumption of electricity from renewable self-production | kWh | 30,476 | 83.119 | 96.659 | 134.640 |
Energy consumption | GJ | 67,946 | 70,021 | 69.585 | 69.859 |
Energy intensity (grid dimensions) | GJ/Km | 108 | 112 | 111 | 111 |
The eco-efficiency measures implemented represented an investment of €978,190, consisting in the conclusion of the Strategic Energy Plan, and mainly, in the installation of 8 photovoltaic production units for self-consumption (UPACs), amounting to total power of 250 kWp and an estimated annual production of 360 MWh. Coverages were also built for carport vehicles, using photovoltaic panels.

BIODIVERSITY ON THE ROAD
Life on Earth depends on the right ecological balance, which results from the existing relationships between all living organisms. The disappearance or introduction of any given species may bring about significant changes, which often have serious effects. According to recent studies, the COVID-19 pandemic is directly linked with the loss of Biodiversity and ecosystem services. Continuous deforestation may also lead to an increase in this type of zoonoses (diseases transmitted from animals to humans).
Biodiversity at Ascendi
At Ascendi, we intend to turn our infrastructures into opportunities, by adopting measures that help preserve the balance of Nature.
In this sense, we have launched the “Biodiversity on the Road” programme, which aims to promote the defence and preservation of Nature’s richness and variety through the sharing of relevant information.
Presented by biologist Pedro Moreira, this programme comprises 5 episodes, which will be made available every Monday, between the 16th May and the 13th June.
The programme will also be available on several platforms, namely YouTube and the Ascendi website and social networks, as well as in podcast format on Spotify.
Focusing on the importance of Biodiversity, this programme will present useful tips and suggestions for protecting Biodiversity, and show us how these small gestures can be decisive to its defence and preservation.
This initiative is part of Ascendi’s commitment to fostering the sustainable use of resources, ecological transition and the protection of Biodiversity across its network.
Biodiversity matters to all of us
Therefore, we would like to invite you to join us! Every week, we’ll suggest a series of simple, daily actions that may help preserve Biodiversity.
But what is exactly understood by Biodiversity? This concept refers to the variety of Life on Earth, from genes to the countless species of animals, plants and microorganisms found on our planet, as well as all habitats and ecosystems that form the biosphere.
In this first episode, Ascendi’s biologist Pedro Moreira will talk about the existing challenges and give us examples of small actions that can make all the difference when it comes to environmental conservation.
Why should we be concerned? In this second episode, João Lindo da Cunha, a specialist in invasive species at Ascendi, will explain why invasive species represent a serious threat to our fauna and flora.