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Internal Resource Efficiency

Environmental management

As a development bank, we have a responsibility to be prudent stewards of natural resources. We have self-imposed targets to further improve our environmental footprint. This commitment is also embedded in our internal structures. The IBB Services department is responsible for technical building management as well as infrastructural and commercial facility management for the entire IBB Group and reports directly to the Board Member for Market Operations. The primary goal for the past financial year was to achieve climate-neutral banking operations. Specific measures have been defined to achieve these goals and relevant data is being collected to track their fulfilment.

The IBB's strategy emphasizes the careful and conscious use of resources to minimize CO2 emissions resulting from its business activities. The building management for the entire IBB Group is carried out internally. This is in line with the Group's goal of consistently reducing resource consumption and compensating for unavoidable impacts. To achieve ongoing positive environmental results, the Group relies on resource-conserving, energy-efficient technology, district heating, energy-saving IT hardware, and 100% certified green electricity sourced from solar energy. Since 2015, the Group has compiled an ecological balance sheet of its data and consumption figures in accordance with the standards set by the Association for Environmental Management and Sustainability in Financial Institutions (VfU). This allows for comparison of standardized data with other financial institutions. This is based on the VfU guidelines and the conversion factors from the 2022 update.

By participating in seminars, the IBB continually integrates new insights into its environmental management approach.

In accordance with the EU Energy Efficiency Directive (2012/27/EU) and the German Energy Services Act (EDL-G), Investitionsbank Berlin is required to carry out an energy audit in accordance with DIN EN 16247-1 every four years. Alternatively, the implementation of an energy management system according to ISO 50001 or an environmental management system with energy aspects was examined. After a cost-benefit analysis, it was decided to continue with the energy audit.

The IBB actively supports political and societal sustainability efforts and implements all feasible measures within its own operations to conserve resources and maintain sustainable business practices across the Group. Regular energy reviews with the technical building management team continuously identify and implement further optimization opportunities for electricity, heating energy, and water consumption.

Resource Management

The IBB Group is committed to responsible use of natural resources and pursues set goals to optimize the ecological impact of its business activities. Climate and environmental protection in bank’s operations includes the careful use of natural resources, waste reduction, and the protection of air, water, and soil. Key resources for the IBB include paper, fuel, energy, water, and waste.

Paper is one of the most significant resources used by the IBB, offering substantial optimization potential in both quantity and quality. As part of ongoing digitization efforts, internal processes are being shifted from paper-based to digital communication. For instance, digital signatures for all internal forms have been in use since January 1, 2019. Letters to customers and partners are sent electronically. Options for waste reduction and optimization are regularly reviewed.

Due to its inner-city location and its business activities as a service provider in an office building without production facilities, there are no significant risks to natural resources and the ecosystem.

Since 2019, approximately 30,000 bees have been housed on the green roof.

All monitors, PCs, and multifunction devices meet at least one certification standard such as Energy Star, EPEAT, or TCO.

The following natural resources were used in 2024:

  • Fuel from non-renewable sources (petrol and diesel)
  • Electricity from renewable sources (in accordance with the EEG) and other renewable energy
  • Heating energy from the district heating network from combined heat and power generation
  • Water from the municipal waterworks
  • Paper from sustainable forestry
  • As a financial services company, we have identified paper as a "key renewable material" for our bank. Recycled paper is used as standard copy paper.

    For the 2024 Sustainability Report, IBB recorded a consumption of 5.97 tons for all paper used, including printed products (e.g. letterheads), mailing materials and communication materials (e.g. annual reports, brochures, flyers, etc.).

    Materials used by weight or volume, of which renewable materials: paper

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    Participation in the “CEOs show their colors” initiative

    We all have a responsibility to protect natural resources. As a public development bank, we are particularly committed to this and support the "Pro Recycling Paper Active" initiative. By using certified recycled paper with the Blue Angel, we are making our contribution to reducing our ecological footprint and shaping a sustainable future.

    The German Federal Ministry for the Environment and the "Initiative Pro Recyclingpapier" have recognized this commitment to sustainable action on the "CEOs show their colors" platform and awarded Investitionsbank Berlin the "Recycling Paper Friendly Company" seal.

    Compared to virgin fiber paper, recycled paper saves an average of 78 percent water and 68 percent energy and causes significantly less CO2 emissions. By using Blue Angel paper, we are making an important contribution to climate and resource protection, as well as to the preservation of forests and biodiversity.

  • We have identified fuel as a "significant non-renewable resource". The consumption of the key resource fuel from non-renewable sources of 2,775 liters consists of gasoline and diesel and is required for the vehicle fleet and the emergency power supply (diesel generator). Environmentally friendly mobility will continue to be promoted in the future, although the potential for savings will not be as great.

    In 2022 and 2023, two electric vehicles and one plug-in hybrid vehicle will be purchased. Since most of the power is supplied by IBB's own charging station, renewable electricity is used.

  • No water is withdrawn from or discharged into water stressed areas. The water consumption of 6,063 m³ for the technical systems (cooling towers, garden, green roof and air humidification) depends on the weather conditions. The total number of people in the building, and thus the number of water users, has increased due to optimized space utilization in connection with the leasing of office space. The green roof is mainly watered by rainwater collected in a trough underneath. During extremely dry periods, the area of approximately 547 m² is irrigated with fresh water. This provides additional cooling for the rooms below. The wastewater and rainwater, amounting to 5,562 m³, is fed into the municipal wastewater network via a combined system.

    This is normal household wastewater. The wastewater discharge depends on the water consumption, which in turn depends on the weather conditions, as the air conditioning systems are cooled with water.

    Water withdrawal

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    Total volume of wastewater discharge

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  • IBB's total energy consumption in fiscal year 2024 was 6,986,717 kWh. All of the electricity we consume is generated from solar energy, i.e. 100 percent renewable energy (certificate available). Heating energy is obtained from district heating through combined heat and power plants. With an average of 1,532 building users, this results in an energy intensity of 4,561 kWh/capita/a. The increase in energy consumption of 42,599 kWh is due to the higher electricity requirement for cooling in summer.

      Unit 2020 2021 2022 2023 2024
    Energy consumption within the organization (electricity + heat) kWh 7,004,391 8,267,777 7,283,163 6,944,118 6,986,717
    Energy intensity kWh/capita/a 6,894 8,050 6,579 5,835 4,561
    Change in energy consumption kWh -255,615 1,263,386 -984,614 -339,045 - 42,599
  • The 99.12 tons of waste generated is recycled separately and collected and transported by certified waste management companies. In 2024, only non-hazardous waste was generated. The increase in waste generation between 2020 and 2021 is due to the change in the calculation basis. From 2021, the European Waste Catalogue (EWC) conversion factor will be used. Discarded IT hardware (after refurbishment) and office furniture are donated to schools or charities, or otherwise disposed of properly.

      Unit 2020 2021 2022 2023 2024
    Total weight of waste t 42.12 96.11 91.06 99.25 99.12

Climate-related emissions - Energy efficiency

Since 2014, IBB has been recording the amount of CO2 emissions caused by its banking activities. The data is collected through a survey, evaluated and assessed annually (see GRI 305-1 to 305-3).

In 2024, the greenhouse gas emissions (CO2) for Scopes 1 to 3 amounted to 550.89 tons of CO2. The direct GHG emissions result from the consumption of fossil fuels for company cars and for the emergency power supply in the amount of 2.82 tons. These emissions have decreased continuously since the first year of the survey.

  • The Scope 1 value remains low due to the increased use of online seminars.
  • For Scope 2, the VfU factor for district heating from the average mix (Germany) has been used in recent years, and from 2021 the VfU factor for district heating from cogeneration will be used. This results in a significant reduction in emissions.
  • For Scope 3, the VfU factor for the upstream chain for electricity/district heating and vehicle fleet/emergency diesel is used from 2021. The supply of electricity from solar energy means that there are no more CO2 emissions in the upstream chain.

Indirect energy-related GHG emissions result from the consumption of electricity from purely renewable sources and district heating from combined heat and power plants amounting to 542.16 tons of CO2 for heating and ventilating the building. As part of an established regular energy review, the ventilation systems were reviewed and a CO2 saving of 24 tons/year was achieved by reducing the operating time (see balance sheet 305-2 to 305-5).

The remaining indirect GHG emissions result from business air travel, amounting to 4.31 tons of CO2. The intensity of GHG emissions is 0.36 tons of CO2 per capita per year.

The operation of the standby power supply is necessary to ensure the continued operation of the business/building in the event of a power failure. For this purpose, a functional test is carried out regularly, which requires the system to be put into operation.

With the German government's Energy Saving Ordinance (EnSikuMaV) from 1 September 2022 (e.g. lowering room temperatures to 19 degrees), we have been able to achieve further energy savings. IBB has been an ADFC-certified "bicycle-friendly company" since 2017. In addition to CO2-neutral transport, the aim is to further improve the health, performance and motivation of our employees.

  Unit 2020 2021 2022 2023 2024
GHG emissions t CO2 823.43 443.27 358.12 308.27 550.89
Direct GHG emissions (Scope 1) t 5.81 4.12 4.06 2.90 2.82
Indirect energy-related GHG emissions (Scope 2) t CO2 813.32 411.86 325.24 300.37 542.16
Further indirect GHG emissions (Scope 3) t CO2 4.30 27.29 28.82 5.00 5.90
Intensity of GHG emissions t CO2/capita/a 0.81 0.43 0.32 0.26 0.36
Reducing GHG emissions t CO2 25.37 380.16 85.16 49.84 242.62