European maritime region definition

With the increasing share of the installed Renewable Sources (RES) capacity, evaluating the effect of renewable energy on the energy supply is a very important issue which is addressed in several climate services projects such as C3S-Energy, Clim2power or C3S-ECEM. Prospective analysis are generally made at regional level (e.g. TIMES model) and it is becoming a standard practice to aggregate gridded RES power generation data into aggregated values at NUTS1 or NUTS2 level. This approach raises an issue for the consideration of the offshore wind energy as well as other Marine Renewable Energies (MRE) since there is to the best of our knowledge no commonly accepted region definition corresponding to the NUTS boundaries for the maritime area.