Aachener Grundvermögen digitizes 900 energy performance certificates with EVANA
The Aachener Grundvermögen Group managed a large inventory of 900 energy performance certificates – all in physical form, some duplicated, and lacking a uniform structure. Manually processing this document collection would have been time-consuming, error-prone, and hardly scalable. Together with EVANA, an AI-powered solution was developed that automatically analyzed the entire inventory, reliably identified duplicates, and provided all relevant information in a structured digital format – all within two days.
problem
900 energy performance certificates were available exclusively in paper form – some were duplicated, unclear and without a usable data structure.
Solution
EVANA developed an AI-supported solution for the automated recording, duplicate checking and structured digitization of the entire energy performance certificate inventory.
Result
All energy performance certificates were fully digitized, cleaned and structured within two days – immediately ready for use and 100 % usable.
From a stack of paper to a clean data foundation
Energy performance certificates contain a wealth of information relevant to assessment – from energy efficiency classes and consumption figures to issue dates and validity periods. However, this data is hardly usable efficiently in analog form. Furthermore, there is the problem of duplicate documents, which are difficult to identify without automated comparison.
The jointly developed solution from EVANA and Aachener Grundvermögen addresses this issue directly: documents are automatically analyzed after upload, checked for duplicates, and relevant content is extracted in a structured manner.
Automatic duplicate checking and intelligent data collection
EVANA AI reliably identifies duplicate energy performance certificates and automatically removes them. Simultaneously, all relevant information is precisely extracted from the remaining documents and presented in a structured format – quickly, accurately, and completely. The result is a clean, digitally usable database.

Structured data instead of analog document chaos
Unstructured document repositories tie up resources and slow down operational processes. EVANA's AI solution enables even large, unwieldy repositories to be fully processed in a short time. For Aachener Grundvermögen, this meant: 900 energy performance certificates – analyzed, cleaned, and digitized in a structured format, without manual review of each one. The data was complete and ready for use within two days.

Results in two days – ready for immediate use
The extracted information was not only structured but also provided directly in a processable format. No post-processing, no manual data entry – the data could be immediately transferred to downstream systems and processes. Perfectly prepared and 100% usable.
Efficiency that makes the difference
Manually processing large volumes of documents is time-consuming, labor-intensive, and frustrating. EVANA's AI solution enables the fast, reliable, and error-free processing of even complex document collections – regardless of document type or size. What used to take weeks can now be accomplished in days with EVANA.
More than just energy performance certificates
The developed solution is based on the proven EVANA infrastructure and can be flexibly extended to other document types. New document types can be quickly integrated, additional data fields defined, and existing processes expanded. This allows not only energy performance certificates to be automatically digitized and cleaned, but also rental agreements, land registers, technical documentation, ESG documents, and due diligence documents.
This provides companies with a scalable solution for the automated processing of large volumes of documents – and creates a structured, immediately usable data basis for analyses, processes and decisions.
About EVANA
EVANA develops AI-powered solutions for analyzing large volumes of documents. Based on its own infrastructure, unstructured content is automatically recognized, extracted, and presented in a structured format. This gives companies faster access to relevant information and creates a reliable data foundation for analyses, processes, and decisions.