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A showcase of case studies, 
products and tools for IPV

Supported by:

IEA PVPS Task 15 project aims to create an enabling framework to accelerate the penetration of BIPV products in the global market of renewables.

Operazione co-finanziata dall’Unione europea, Fondo Europeo di Sviluppo Regionale, dallo Stato Italiano, dalla Confederazione elvetica e dai Cantoni nell’ambito del Programma di Cooperazione Interreg V-A Italia-Svizzera

Casa B

new construction

Casa B
Building use: 
IPV architectural system: 
opaque roof
IPV integration year: 
between 2016 and 2020
BIPV meets History project

Casa B

Via G. Quarenghi, Almenno San Salvatore (BG), Italy



Design approach

Aesthetic integration

Energy integration

Technology integration

Decision making

Lessons learnt


Producer and installer



The building, which has a BIPV system integrated into the roof, is located in a consolidated residential area with the typical characteristics of traditional architecture and the agricultural areas to the south. From a landscape point of view, it is located in an area of “medium sensitivity”, but adjacent to an area of  “extremely high sensitivity”. In the vicinity is a Romanesque-era church dating back to the 6th-7th century, San Giorgio al Cimitero, a heritage building and a protected archaeological site, as well as another Romanesque-style building. In addition, the relative green areas behind Casa B are classified on the provincial scale as “Level I and II nodes”.


Main building designer: 

Arch. Marco Minelli

IPV components producer: 

CREATON Italia Srl

Product type: 
Via B. Maderna 7, Mestre (VE), Italy
Contact: +39 041 309 72 12

The vicinity to the historically building required a project that integrates with the surrounding landscape, protecting the views from and of the Romanesque church of San Giorgio without altering perception and without any elements of strong impact, including those of the system. This approach however did not hinder the creation of a building offering elevated energy performance (passive house), with the integration of photovoltaic technology on the roof. The project received CasaClima and Cened certification.

The photovoltaic modules are completely integrated into the roofing system, guaranteeing: (i) the same inclination and orientation, (ii) pitch uniformity, (iii) respect for the surrounding area, reflecting the architectural, material and colour characteristics of the nearby church of San Giorgio al Cimitero.

The BIPV system was designed to satisfy the energy demand of both the habitation itself and the systems for the external areas (video surveillance system, irrigation system and maintenance of green areas). It has been estimated that the photovoltaic energy production is able to cover demand only during the winter, when the external systems are not in use or used much less than in the summer period. The net metering scheme with the national grid has been activated.

The BIPV system (Solesia, CREATON) substitutes part of the roof, protecting the building from the elements, collecting and directing rainwater to the drainage points, and providing suitable soundproofing. It is integrated among the linear rectangular tiles supplied by the same manufacturer, in order to respect the size and pitch of the roof.

The need to create a fully integrated photovoltaic system is the result of a design choice that aims to obtain the utmost compatibility with the building’s roofing elements from both a form and colour and a functional point of view, as well as with the setting, considering the nearby elements subject to landscape, architectural and archaeological restrictions. It was necessary for the building not to have a visual impact on passers-by.

The authorisation process initially required landscape authorisation to be obtained in compliance with current regulations on a local and supralocal level. The request was granted, both for the colour of the panels and, above all, for the perfect integration with the roof. Despite the entire process requiring a considerable amount of time, the result obtained was worth the efforts made both during planning (research and contacts with the manufacturers and suppliers, attention to construction details) and construction (rapidity of installation).


Project type: 
Building construction technique: 
Architectural system: 
Opaque roof
Integration year: 
Active material: 
Monocrystalline silicon
Module transparency: 
System power [kWp]: 
System area [m²]: 
Module dimensions [mm]: 
1,778 x 355
Modules orientation: 
Modules tilt [°]: 
IPV components producer: 

CREATON Italia Srl

Product type: 
Via B. Maderna 7, Mestre (VE), Italy
Contact: +39 041 309 72 12
Via G. Quarenghi, Almenno San Salvatore (BG), Italy

Eurac Research