2 Content of the Scenarios package //

The TYNDP 2026 Scenarios Package provides a transparent, cross-sectoral and policy‑aligned foundation for assessing Europe’s future energy system and related infrastructure needs. It consists of the following components:
TYNDP 2026 Scenarios Report

The main report of the scenarios package. It presents the purpose, policy context, and key outcomes of the TYNDP 2026 Scenario, detailing how stakeholder engagement shaped scenario development and how the scenario complies with ACER’s Scenarios Framework Guidelines. The report also presents the main scenario results, assesses consistency with EU energy and climate targets, and benchmarks the outcomes against other relevant European scenario studies.

TYNDP 2026 Scenarios Methodology Report

A dedicated report describing the methodology used to develop the 2026 scenario. It explains the assumptions and approaches applied across demand, supply, grids, and market modelling, including data collection, modelling tools, and validation processes. It also explains the gap-filling and Economic Variants methodologies.

TYNDP 2026 Scenarios Report Data Figures

A technical dataset providing the numerical values underlying the figures presented in the TYNDP 2026 Scenario Report. This dataset includes the data used to generate charts, tables and visual outputs in the report.

TYNDP 2026 Scenario Inputs

A technical dataset providing the input data used in the TYNDP 2026 scenario simulations. This dataset includes the processed input templates structured for direct use in the market modelling tool, containing all relevant parameters and datasets required to run the simulations. It reflects the transformation of collected data into model-ready inputs, ensuring consistency and reproducibility of scenario results.

TYNDP Scenarios Innovation Roadmap

This is a forward-looking living document outlining methodological improvements, model enhancements, and innovation priorities for successive scenario cycles. It was published in February 2025 as part of the TYNDP 2026 ­Scenario Package. It is outlined in both the Scenario Report and the Methodology Report.

TYNDP 2026 Stakeholder Engagement Plan

This report is a supporting documentation describing the stakeholder engagement process, including consultations, workshops, and responses to feedback, demonstrating how stakeholder input informed assumptions, methodologies, and scenario design.

TYNDP 2026 Scenario visualisation tool

This is an interactive platform providing access to scenario results across countries, sectors, and energy carriers, enabling users to explore outputs transparently and to support further analysis. This cycle’s interactive dashboard provides users with a comprehensive view of the results. It brings together both model optimisation and final energy demand results in a single dashboard, in order to simplify data access for users. In this cycle, an emphasis was also placed on ensuring more transparency in the tool, with information regarding the European carbon budget now included in the platform. The visualisations include insights into the electricity and hydrogen mix by fuel type and country, as well as final energy demand by carrier, sector, or subsector.

Together, these elements form an integrated scenarios package that supports comprehensive, transparent, and EU target‑compliant infrastructure planning, while providing clarity on methodologies, assumptions, uncertainties, and stakeholder input.