The present work introduces a methodology used as a basis for the techno-economic assessment of transmission technologies, validated by some European TSOs. This will allow:
- developing a 2020 and 2030 roadmap for the integration of innovative transmission technologies;
- filtering out the set of key technologies that will have to be further analysed;
- performing a cost-benefit analysis, key stage of the transmission planning process, which takes also account of the candidate technologies.