RTE international modernises ENTSO-E’s energy data collection with an open-source solution
Paris, June 2026. RTE international announces the successful deployment of PEMMDB (Pan European Market Modelling Database), an open-source application developed for ENTSO-E that centralises and certifies the quality of the collected data underpinning Europe’s strategic energy planning studies.
ENTSO-E brings together 36 countries and 40 transmission system operators (TSOs) across Europe, producing strategic planning studies that are critical to the continent’s energy security and that inform EU decision-making on the allocation of European funding. These studies rely on the collection and analysis of significant volumes of data submitted by all member TSOs.
A digital response to the energy data challenge
Until 2023, that collection process was managed through shared folders, exposing ENTSO-E to material risks: processing delays, access controls, heterogeneous datasets or even input errors. Except that a single erroneous data is enough to compromise the integrity of a study.
Developed by RTE international, the PEMMDB application addresses this structurally. The solution provides a single, secure interface through which each TSO submits its data, which is then subjected to five successive quality control checks. Any anomaly triggers an alert, enabling correction prior to final validation. Compliant data flows automatically into ENTSO-E’s consolidated database.
An open-source architecture built for the energy sector
At the heart of PEMMDB lies OperatorFabric, an open-source platform hosted and governed by the Linux Foundation Energy, built from the ground up for the energy sector’s unique demands. The result is a solution that is both robust and future-proof. But the benefits extend beyond the client: every feature developed for ENTSO-E feeds back into the open-source community, before being fine-tuned to meet specific needs.
Since 2023, two development cycles have been completed in partnership with Aprico, representing a total investment of €1.6 million. A continuous maintenance contract ensures permanent availability and performance as ENTSO-E progressively restructures its entire data collection infrastructure around the PEMMDB application.
Deployment prospects beyond Europe
The solution’s scalability opens the door to deployment across other regional organisations. Several transmission system operator associations have already expressed interest in an equivalent portal.
« RTE international embraced open-source as early as 2020, and PEMMDB is a concrete demonstration of its value applied to critical energy infrastructure. This approach delivers robustness and reliability, while remaining transposable to other players in the sector and continuously enriching the wider ecosystem, » said Aurélien Watare, Director of Digital Solutions at RTE international.
