Case studies

This case study of residential buildings represents the first residential building in the world with an intelligent and consistent combination of photovoltaics, battery storage, synthetic e-gas/biogas and intelligent energy management (hybrid box). It has also received a recognition at Energy & Temperate Climates Prize of the Green Solutions Awards 2020-21.

The Burgkunstädter town hall is one of the most suggestive half-timbered house in Franconia and it shows an impressive decorative half-timbered structure. The aim of the overall renovation of the old building was to preserve and emphasise the historical value of this important monument and to equip it for the demands of the present day.

The biggest Passive House residential development in Navarra including 128 PH apartments represents a great example of energy efficiency.

A major retrofit intervention has allowed to transform an 1960 leisure centre building into a A-rated building with Nearly-Zero Energy Building (NZEB) status. Innovative energy systems and materials have improved efficiency, lowered costs and reduce the building´s footprint.

The Habitat 76 "Spatium" the head office in Rouen represents a nice example of cerified Passive house building. It has a very low energy and carbon footprint even though it is a very large building, and it is an example of resilience.

Due to increasing pupil numbers and structural change, the Municipality of Giebelstadt in Germany decided to add an extension building to the existing main building of the Giebelstadt Primary School. The new building provides space for the after-school programme and was built conformant with the Efficiency House Plus standard.

In the QualDeEPC project, the Energy Agency of Plovdiv (EAP) valuably contributes to developing a better understanding of opportunities for energy savings and energy generation in both residential and public buildings. 

This case study presents the renovation of a building listed for preservation. The renovation process of the historic building aims at preserving as much as possibile its building fabric and this can be seen by the exposed beams on the ground floor as well as the load-bearing beams or the partially exposed natural stone façade in the interior.

This NZEB collective residential building is the first to obtain a Passivhaus Plus certification in Spain. It has also been awarded the Energy & Temperate Climates Prize at the national level of the Green Solutions Awards 2020-21.

This single-family house is Passivhaus certified. Passive measures include, for example, external venetian blinds and deep window reveals to reduce summer overheating, while benefitting from solar gains during winter. It also features rain water harvesting and solar PVs.