In the context of HAPPEN closure, AEGEA, along with the National & Kapodistrian University of Athens, presented the project actions’ results on their pilot buildings, for which energy studies and upgrades were prepared, following MedZEB standard.

AEGEA covered the cases of 2 pilot buildings, the Municipal Guesthouse Polyvotis in  Nisyros and the Municipal Guesthouse in Lefkes, Paros, while the NKUA covered the case of the Historical Museum of NKUA in Athens.

The two pilot buildings, covered by AEGEA, are typical examples of tourist accommodation design according to the XENIA model in the 60s and 70s, of high aesthetic and functional value, outdated equipment and low energy efficiency.

AEGEA carried out energy upgrade studies following MedZEB standards for hostel buildings, respecting functionality and aesthetic upgrade of the buildings.

More specifically, in these buildings the following interventions were proposed:

• heating system energy upgrade,
• luminaires replacement,
• use of the room management system in combination with the use of the Building Energy Management System (BEMS),
• thermal insulation of the roofs of the buildings,
• provision of domestic hot water (DHW) using solar panels and
• building frames replacement with new energy ones.

These interventions were designed having in mind energy saving but also preserving the aesthetics of the buildings and the surrounding area in traditional island settlements.