Electrical energy from renewable resources combined with a smart digital grid infrastructure is the only way to decarbonize the energy sector. To achieve this, the energy sector is undergoing an unprecedented, sector-wide transformation. To accomplish this transformation, not only technical connectivity is required; energy-related processes and products in all sectors must also be aligned. Thus, the ability to achieve seamless interoperability takes on an essential role, especially in the context of sector coupling, which integrates previously independent domains and heterogeneous systems into a holistic and intelligent energy system. However, most of the systems that have to be coupled or the so-called legacy systems were never designed to be integrated - a lack of maturity of interoperability is often the consequence. This is where the Interoperability Network for the Energy Transition (int:net) comes in.

At its core, int:net aims to improve the interoperability of value-added services, data, and platforms at both the functional and business levels in the context of the energy industry in Europe. To this end, int:net relies on four complementary approaches:

1. Building and establishing a common knowledge base for interoperability activities in the context of the energy industry in Europe.
2. Design and development of a comprehensive and accepted European Interoperability Maturity Model (IMM) to ensure continuity of ongoing interoperability activities in the field of energy services.
3. Design and development of a framework for interoperability testing in a network of interoperability testing facilities to support and disseminate a common framework to test interoperability across active projects in the energy sector.
4. Establish a community network for a European interoperability ecosystem to ensure horizontal coordination as well as a sustainable adoption of energy services related to interoperability, data spaces, and digital twins by actively involving legal and regulatory framework bodies.

GAIA-X, IEC 62559 Use Cases, SGAM, Maturity Models, Gazelle (interoperability testing), Connectathons.