Europe’s electricity system is undergoing a profound transformation as renewable energy generation, decentralised production and new energy market actors rapidly reshape how electricity is produced, distributed and consumed. Traditional grid structures were not designed for a system where millions of distributed assets, consumers and flexibility providers interact dynamically across interconnected energy markets. OneNet addresses this challenge by developing the conditions needed for a more integrated, flexible and digitally connected European electricity network.
The project focuses on enabling system operators, market participants and consumers to cooperate more effectively through common standards, interoperable digital architectures and open market frameworks. By improving coordination across Europe’s electricity ecosystem, OneNet supports the transition towards a more resilient, decentralised and renewable-based energy system.
What is OneNet about?
OneNet focuses on creating the technical, operational and market conditions required for a flexible and integrated European energy system.
The project develops common approaches that allow electricity system operators and market actors to cooperate more efficiently across increasingly complex and decentralised energy networks. As renewable energy sources continue to expand, electricity systems require greater flexibility to balance supply and demand in real time while maintaining stability and reliability.
A central objective of OneNet is the creation of interoperable digital and market architectures that allow flexibility services to operate more openly and effectively across Europe. The project works on harmonising technical standards, market mechanisms and coordination models that can support cooperation between transmission system operators, distribution system operators, aggregators, service providers and consumers.
The project also explores how flexibility markets can become more accessible and transparent. New flexibility services such as demand response, distributed storage and local energy management systems are becoming increasingly important for balancing renewable-heavy electricity systems. OneNet helps create frameworks where these services can participate more efficiently within integrated market structures.
Large-scale demonstration activities across multiple European countries validate different flexibility solutions and coordination approaches under real operational conditions. These pilots help assess how digitalisation, interoperability and market integration can support a more adaptive and consumer-oriented energy system.
Beyond technical development, OneNet also contributes to regulatory discussions and standardisation activities aimed at accelerating Europe’s energy transition and improving cross-border coordination between electricity markets.
Why OneNet matters
Europe’s transition towards climate neutrality depends heavily on the ability of electricity systems to integrate growing shares of renewable energy while maintaining reliability, affordability and operational stability.
OneNet contributes to this transition by helping create the digital and market foundations required for a more flexible and interconnected energy system. By improving coordination between system operators and enabling wider participation in flexibility markets, the project supports a more efficient integration of renewable energy sources and distributed energy resources.
Through interoperability, digitalisation and collaborative market design, OneNet helps prepare Europe’s electricity infrastructure for the demands of a decentralised and increasingly renewable-based energy future.
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No. 957739.
Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Commission. Neither the European Union nor the granting authority can be held responsible for them.
