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IPV
Integrated
Photovoltaic

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

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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

Azurmendi restaurant

new construction

Arch. Naia Eguino © Onyx Solar
Building use: 
receptive
IPV architectural system: 
skylight
warm façade
IPV integration year: 
between 2011 and 2015
Source: 
IEA PVPS Task 15 project
BIPV roof and façade of Azurmendi restaurant © Naia Eguino
BIPV roof and façade on the entrance atrium © Onyx Solar
BIPV modules from Onyx Solar © Onyx Solar
Cross-section through the bio-climatic building © Naia Eguino
BIPV roof structure © Onyx Solar
Entrance atrium shaded by the BIPV modules © Naia Eguino

Azurmendi restaurant

Barrio Leguina, Larrabetzu, Biscay, Spain

Introduction

Stakeholders

Aesthetic integration

Energy integration

Technology integration

Decision making

Lessons learnt

Data

Producer and installer

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Designed following an overall approach based on sustainability, the building is a bio-climatic structure, LEED Silver certified, where three bodies are combined: greenhouse, dining room and kitchen. There are many areas that influence energy in the building, such as offering employees options to arrive by bicycle and to take a shower later, creating an area for recharging electric cars, controlling the levels of natural and artificial lighting. The BIPV system is integrated in part of the semi-transparent roof and façade of the building, shading the interior spaces. Designed following an overall approach based on sustainability, the building is a bio-climatic structure, LEED Silver certified, where three bodies are combined: greenhouse, dining room and kitchen. There are many areas that influence energy in the building, such as offering employees options to arrive by bicycle and to take a shower later, creating an area for recharging electric cars, controlling the levels of natural and artificial lighting. The BIPV system is integrated in part of the semi-transparent roof and façade of the building, shading the interior spaces.

Source: Successful Building Integration of Photovoltaics – A Collection of International Projects

STAKEHOLDERS

Main building designer: 

Arch. Naia Eguino

IPV components producer: 

Onyx Solar

Product type: 
modules
Address: 
C/ Río Cea 1, Ávila, Spain
Contact: 
info@onyxsolar.com +34 920 21 00 50
Web: 
https://www.onyxsolar.com/

The BIPV modules are completely integrated in the building image, being semi-transparent elements characterized by a uniform appearance, that are not so different from traditional glass panels that could be integrated in the roof and the façade.

The building has been LEED Silver certified. The BIPV system is part of an overall concept based on the sustainability from different points of view. Besides the photovoltaic source, the building uses geothermal energy that acclimatizes almost 100% of the building. Other aspects are: the materials used are recycled or recyclable; there is a green cistern-roof where rainwater is recycled for irrigation and WC cisterns, which, in addition, serves as a very good insulator.

The BIPV system is made of insulated glass-glass modules (L vision), which incorporate a thin-film amorphous silicon layer that filters the natural illumination, with a 20% of visible light transmittance level.

Azurmendi restaurant is a bio-climatic structure with a greenhouse where the cooking ingredients are what is planted there. It was designed as a sustainable building in terms of water, materials and energy. The photovoltaic system was exposed in the atrium roof providing an educational message to the customers. It also represent an important shading structure to prevent the overheating of the interior space.

The PV system helped to address different aspects: the aesthetic, as the architectonic integration is absolute; the energy-related, because the PV system generates electricity for the lighting of the building and it helps to shade the space (Arch. Naia Eguino).

PROJECT DATA

Project type: 
new construction
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BIPV SYSTEM DATA
Architectural system: 
skylight, warm façade
Integration year: 
2012
Active material: 
amorphous silicon
Module transparency: 
semi-transparent
Module technology: 
glass-glass, hidden PV, customized modules
System power [kWp]: 
21
System area [m²]: 
283.6
Module dimensions [mm]: 
1,628 x 1,309, 2,653 x 1,309
Modules orientation: 
South-West
Modules tilt [°]: 
6 (skylight), 90 (façade)
IPV components producer: 

Onyx Solar

Product type: 
modules
Address: 
C/ Río Cea 1, Ávila, Spain
Contact: 
info@onyxsolar.com +34 920 21 00 50
Web: 
https://www.onyxsolar.com/
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Barrio Leguina, Larrabetzu, Biscay, Spain
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N. Eguino, E. Rico, A. Sanchidrián, J. M. Jiménez