A Duty Instead of a Choice: Sustainability as a Benchmark

The concept of sustainability has been shaping everyday life in our society for some time now: Where does my electricity come from? Combustion engine or electric car? Are my vegetables locally grown? What are often just considerations in everyday life are much more complex on an industrial level. It is not enough to produce meaningful sustainability reports; their effectiveness must also be verifiable. This is where the AI tool ”Sustainalyze” from Fraunhofer IML comes into play. This tool is designed to standardize and analyze key figures and data and prevent the concealment of facts.

In Germany, the current legal basis for sustainability reporting is the Corporate Sustainability Reporting Directive Implementation Act (CSR-RUG), which has been in force since 2017. It requires large, capital market-oriented companies with more than 500 employees to disclose information on environmental, social and governance (ESG) topics. This is done using key figures such as greenhouse gas emissions, anti-corruption measures, and working conditions. On the EU level, the CSR Directive (CSRD) came into force in January 2023. It significantly expands the scope and depth of reporting requirements, introducing mandatory EU-wide reporting standards (ESRS), external assurance and the principle of double materiality. The CSRD must be transposed into national law by July 2024 and will gradually apply to more companies – including listed SMEs starting in 2026. CSR-RUG and CSRD are two separate regulatory frameworks with different scopes and requirements. While CSRRUG remains applicable for now, CSRD paves the way for a broader and more harmonized approach to sustainability reporting across the EU.

One of the biggest challenges is the oftenincomplete database, which increases the risk of greenwashing. This means that companies sometimes “paint themselves green” by appearing more environmentally friendly than they actually are – with the aim of improving their image and winning customers through misleading statements.

Efficient evaluation of sustainability goals with AI

The project team led by Pia Schreynemackers at Fraunhofer IML has developed the ”Sustainalyze” tool for analyzing sustainability reports. ”In a world where sustainability is becoming increasingly important, there is also growing pressure on businesses to produce credible and meaningful reports,” explains Schreynemackers.

Using an algorithm and large language models, “Sustainalyze” reads sustainability reports, captures their semantic content, and makes them comparable and assessable by providing a structured summary. The algorithm is based on machine learning: artificial intelligence (AI) compares the raw data using selected criteria. To ensure transparency, comparability, and objectivity, only publicly available data is used. In the end, companies receive a structured assessment of their own data and, if possible, external sources. This supports the reliability of the evaluations. In addition, materiality analysis is used to identify relevant sustainability aspects from different perspectives. Benchmarking in these areas enables companies to compare their performance with industry standards and strive for targeted improvements.

Double benefits for companies

This standardized procedure makes greenwashing virtually impossible. The solution offers companies two advantages: ”The software should be used to check the plausibility and completeness of their own reports, identify gaps, and make suggestions for closing these gaps – for example, by comparing them with competitors in the same industry,” explains Pia Schreynemakers. In addition, “Sustainalyze” will enable companies to evaluate the reports of other companies when selecting suppliers or potential cooperation partners. ”In the future, Sustainalyze will thus complement self-assessment with third-party assessment,” says the researcher.

The final project phase ended in January 2024. The collaboration with ebm-papst Mulfingen GmbH & Co. provided many insights into industry-relevant sustainability reportsand valuable experience in the day-to-day handling of the database. The algorithm was then tested under real conditions and further optimized through use case interviews. “Sustainalyze” will be available for purchase via the Fraunhofer IML’s Omnistics AI platform in the course of 2025 (p. 40).

Two people in a modern office standing at a table and talking, with a screen displaying the word ‘SUSTAINABILITY’ visible in the background.
© Fraunhofer IML

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Pia Schreynemackers, M. Sc.

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Pia Schreynemackers, M. Sc.

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Phone +49 231 9743-168

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