The consumption or use of resources plays a major role in EnBW's business activities. For example: coal is burned; waste and by-products are produced; land, water and energy are consumed. Here you will find examples of EnBW's activities for the responsible use of resources.
Further information:
Further data on the following topics can be found in the environmental data table.
Responsible procurement
Coal procurement
With a view to the CO₂ reduction targets set by the German government, we will gradually replace hard coal with more climate-friendly energy sources. The most important milestones here will be the realization of the fuel switch projects and the planned phaseout of coal by 2028, as long as corresponding framework conditions are met. Nevertheless, hard coal will still play a relevant role for EnBW as a source of energy over the next few years to ensure a reliable and economic supply of electricity. Responsible raw materials procurement, especially in the coal sector, is thus extremely important to us in order to strengthen our sustainable purchasing.
As the previous year, 2024 was characterized by a sharp decrease in the amount of electricity generated from hard coal in Germany, which was also reflected in the total amounts of hard coal delivered to the EnBW power plants. Deliveries fell from 2.2 million t in 2023 to 1.4 million t in 2024. Alongside the general market trend towards renewable energies, this was also attributable to the shutdown of power plants due to damage, including Block 7 in Heilbronn and the combined heat and power plant 2 in Altbach/Deizisau, and a longer period of downtime at Block 8 of the Rheinhafen steam power plant in Karlsruhe.
In 2024, Colombia was once again the most important source of supply for power plant coal, followed by the USA. Even so, deliveries of Colombian coal fell from 1.1 million t to 0.8 million t because of the fall in demand, while deliveries of coal from the USA fell sharply from 0.8 million t in 2023 to 0.4 million t in 2024. The Colombian coal delivered in 2024 was sourced from the producer Drummond. The coal from the USA was sourced from various mining regions.
The further decrease in total deliveries combined with both significant fluctuations in demand for electricity generation from hard coal and falling prices on the market for power plant coal increased the need for flexibility and optionality in 2024. In the reporting year, this meant that the proportion of our power plant coal covered by trade intermediaries increased to 48%. In the same period, the proportion from contracts where the individual producers are already known when the contract is concluded fell to 52% (previous year: 93.8%).
| in million t | 2024 | 2023 | 2022 |
| Russia | 0.0 | 0.1 | 2.0 |
| Columbia | 0.8 | 1.1 | 1.6 |
| USA | 0.4 | 0.8 | 0.4 |
| Southafrica | 0.1 | 0.1 | |
| Other | 0.0 | 0.1 | |
| Total¹ | 1.4 | 2.2 | 4.2 |
¹The figures may not add up due to rounding differences.
Gas procurement
In order to achieve our target of climate neutrality by 2035, we are working intensively on switching over our power plants from coal to more climate-friendly natural gases (fuel switch) and then to climate-neutral gas such as biogas or hydrogen in the long term. Natural gas plays an important role as a transition technology –
either in the form of liquefied natural gas (LNG) or grid-based natural gas. LNG is essential for ensuring the security of supply in Germany, replacing Russian gas volumes and diversifying natural gas procurement. Against this background, we have expanded our LNG activities and continued to shift the focus onto due diligence in the area of gas procurement. The key aspect will be a comprehensive business partner audit of all the direct LNG and pipeline gas suppliers before they are approved as a business partner for EnBW.
In 2024, EnBW mainly sourced its natural gas via supply contracts with companies in Norway as well as via the European wholesale market. Following the expiry of our Russian gas contracts in 2022, we strengthened our efforts to diversify our sources of gas to a much greater extent. In June 2024, the EnBW subsidiary VNG extended its long-term contract with the Norwegian company Vår Energi ASA (Vår Energi) for the supply of up to 5 billion m³ of natural gas for a further twelve years. The contract builds on the long-term relationship between Vår Energi and VNG that stretches back to the early 1990s. Norway has been a reliable energy supplier with a low carbon footprint for many years.
LNG is important for securing Germany’s gas supply as a transition technology and will act as a bridging fuel to a green energy supply. The conversion from liquefied gas to a hydrogen-based energy source, such as ammonia, is already planned at the LNG terminal in Stade. Following the final investment decision, the groundbreaking ceremony was held in Stade in June 2024. EnBW has booked capacity of 6 billion m³ at the LNG terminal in Stade making it one of the main customers of the Hanseatic Energy Hub. The terminal is expected to be commissioned in 2027.
Water usage and waste water mangement
Increased use of modern cooling towers
For the operation of our thermal power plants (nuclear power, coal, oil, gas), large quantities of water are taken from the Rhine and Neckar Rivers in particular for cooling and as process water, which is then fed back in after use.
Through the increased use of modern cooling towers, newer and more efficient power plants and the use of combined heat and power generation, we have been able to considerably reduce the burden on the watercourses compared to the earlier heat input of older thermal power plants with once-through cooling. This is the result of the economic analysis carried out as part of the management planning for the Neckar River in connection with the Water Framework Directive.
Even during summer heat waves and low water periods, sophisticated water, heat and oxygen management, coordinated with the authorities, helps to minimise the impact on water bodies as far as possible.
With the water withdrawal charge that has been payable in Baden-Württemberg for many years, there is not only an ecological aspect but also an economic incentive to use the resource water for cooling purposes only to the extent necessary.
Minimizing the volumes of cooling water and waste water
We strive to credibly reconcile corporate, political and social objectives in the environmental field. Derived from our EnBW strategy, our environmental aspects and the requirements of the energy revolution, in environmental protection, we focus on the reduction of and water consumption as one crucial fields of action. We have set ourselves the target of reducing the waste water intensity from own generation of electricity by 20 % to 30 % by 2025 compared to the base year 2018.
Waste Management
Reduce and recycle waste
At EnBW, different types of waste are generated in the individual business activities along the value chain. Waste management is part of our environmental management system The aim is to achieve continuous improvement and thus reduce waste. Data on waste volumes and the recycling rate in the Group can be found on the Environmental Data page.
The purpose of waste incineration plants is to dispose of waste by using the energy contained in it, for example to generate electricity and heat. The waste incineration in our EnBW combined heat and power plant in Stuttgart-Münster also ensures that the energy resources in the waste are used responsibly.
Together with coal, mechanically dewatered and thermally dried sewage sludge can be incinerated. A prerequisite is that the sewage sludge complies with the Sewage Sludge Ordinance. This man-made waste from sewage treatment plants has so far largely been deposited in landfills or used in agriculture and in recultivation measures in depleted lignite deposits.
Thermal recycling in power plants is a technically feasible and environmentally friendly disposal method.
Power plant by-products
Building materials from power plants
The power plant industry produces by-products such as fly ash, boiler ash and gypsum, which are used as secondary raw materials in the building materials industry. In particular, the gypsum produced during flue gas cleaning has long been marketed to the gypsum-processing industry, thus avoiding the mining of naturally extracted gypsum.
Mineral products from coal-fired power plants have proven their worth for decades as building materials in concrete and reinforced concrete construction, mining, road and path construction and in earthworks, foundation engineering and landscaping.
More than 9 million tonnes of these building materials from coal-fired power plants are used annually in the construction industry in the form of fly ash, boiler sand, smelting chamber granulate, FGD gypsum and others. This is associated with a considerable relief of the environment, conservation of resources and with great economic benefits. Furthermore, there are convincing advantages for the user.
Desulphurisation products (REA gypsum)
In order to meet the legal environmental protection requirements for keeping the air clean, the coal-fired power stations were equipped with flue gas desulphurisation plants (FGD), among other things. In these plants, the sulphur dioxide present in the flue gas reacts with natural lime. Downstream oxidation of the reaction products produces gypsum, which is referred to as FGD gypsum.
Extensive investigations have shown that there are no differences between natural gypsum and FGD gypsum in terms of chemical composition and content of trace elements. According to these investigations, FGD gypsum, like natural gypsum, can be used for the production of building materials without health concerns.
Environmental protection and energy savings
Natural raw materials are becoming increasingly scarce. Their extraction often requires drastic interventions in the landscape. The energy required to produce building materials is often very high.
The use of building materials from coal-fired power stations conserves natural resources and brings energy savings in the production and processing of building materials, as these products are already in the economic cycle and can in part be used directly as raw materials in their unaltered state. Their environmental compatibility and harmlessness in terms of industrial hygiene have been proven in many studies.
Mobility initiatives
Improve the environmental balance
EnBW AG is a group with various subsidiaries and locations. This makes it necessary for our employees to undertake business trips using different modes of transport.
In addition, our network operators are present in the area to ensure the security of supply of the electricity and gas network and use company vehicles for the operational management and maintenance of the networks.
In order to improve the environmental balance of our travel activities, we have defined the following objectives and introduced appropriate measures:
- Avoidance of business travel
- Improvement of CO₂ emissions from the use of passenger cars
- Significant expansion of the electric vehicle fleet
In order to measure the further development in the achievement of objectives, we have been reporting the "CO₂ intensity of the business trips and travel" in g CO₂eq/km in the annual report since 2014. This includes the CO₂eq from business travel (both the Scope 1 emissions from our own vehicles and the Scope 3 emissions from e.g. flight, train, taxi).
Ad 1. A main focus of our activities is to reduce the number of business trips. We are increasingly using web and videoconferences instead. This not only reduces carbon emissions and costs but also leads to a lower risk of injury and the more efficient use of work time. In 2012, we have introduced an IT solution for webconferences and since then have continuously updated it and have now adapted it for use in a smart client environment. The number of rooms equipped for videoconferencing has steadily increased since 2009. Hybrid working is being promoted in the Best Work program. As well as modifications to technical equipment, workspaces on site have been redesigned for this purpose and employees have been offered training on hybrid ways of workings. We have 315 videoconference rooms available for use and around 100 of them were upgraded in 2024 with the old equipment being replaced by modern Microsoft Teams Rooms (MTRs). Other opportunities for collaboration outside of meeting rooms were also developed. For example, we can now provide employees with 275 videoconference solutions such as Surface Hubs, monitors with connected collaboration bars and MTRs. In 2024, approximately 16,000 employees took part in more than 156,000 meetings on average per month via videoconference.
Ad 2. and 3. The main form of transport for business travel at EnBW AG in 2024 was the German railway Deutsche Bahn – which uses 100% green electricity – with more than 30,000 journeys being made. In addition, we added sustainably certified hotels to our travel booking portal and purchased more than 4,500 kg of SAF (sustainable aviation fuel made of cooking oil, etc.) in 2024. As a result, we were able to offset around 13,451 kg CO₂ in cooperation with our partner the Lufthansa Group. We also focus on reducing CO₂ emissions when the use of a private car is unavoidable (we use e-cars wherever possible). We also deploy a wide-ranging package of measures to reduce carbon emissions in the composition of our vehicle fleet (data as of Q1 2025):
- Our fleet today includes some 2,000 vehicles with alternative drive systems (BEV, PHEV und FCEV). The bulk of these comprise 1,490 electric vehicles (EVs), increasing numbers of which are on order.
- All EVs are charged with 100 % green electricity.
- Our employees have access to 200 fully electric fleet vehicles at 7 sites for their business trips.
- We are continuously expanding the charging facilities for electric cars at our sites for the benefit of employees and have now installed a total of 1,325 charging points at over 132 EnBW sites across Germany (as of 03/2025). Employees can also use more than 70 charging points for e-bikes across 26 sites. By expanding the charging infrastructure at our sites, we want to make it easier for our employees and visitors to switch to electric vehicles and thus also push forward the mobility transition internally at the company.
The central vehicle fleet managed by EnBW AG comprises a total of 2,510 vehicles, which includes 800 service vehicles and 1,650 commercial vehicles that are used for installation work on the grids.
Read more about EnBW's commitment to e-mobility here (in German)