METIS is a mathematical model simulating the operation of the European electricity and gas systems and markets on an hourly basis over a year. The addition of hydrogen as an energy carrier have allowed using the model in the impact assessment for revised gas markets and hydrogen directive and regulation. Further ongoing developments address the better integration of demand with supply sectors and a finer regional granularity. In order to secure the model in future policy cycles, extensions would be necessary along the following three dimensions:

1. a representation of energy markets including the behaviour of buyers and sellers;

2. the inclusion of all demand sectors including a linkage of demand in these sectors to economic activity as represented by macro-economic models;

3. the interaction with energy systems outside the EU that have a key impact on the EU energy system, e.g. via exports of electricity, gas and hydrogen.

Extension of the METIS energy model and conducting studies demonstrating the upgrades.