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IPV
Integrated
Photovoltaic

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

Colterenzio Winery

renovation

Building use: 
commercial
IPV architectural system: 
canopy
IPV integration year: 
between 2011 and 2015
Source: 
Eurac Research

Colterenzio Winery

Str. Vino 8, Appiano (BZ), Italy

Introduction

Stakeholders

Aesthetic integration

Energy integration

Technology integration

Decision making

Lessons learnt

Data

Producer and installer

Map

Author

The Colterenzio Winery headquarter comes from the refurbishment of existing structures from the 1970s. The old buildings have undergone a major restoration that integrated the tradition of the oak wood with the innovation of modern materials and technologies.

STAKEHOLDERS

Main building designer: 

bergmeisterwolf

IPV system designer: 

​Fleischmann & Jansen

IPV components producer: 

SOLARWATT GmbH

Product type: 
Address: 
Maria-Reiche-Straße 2a, Dresden, Germany
Contact: 
info@solarwatt.com +49-351-8895-0
Web: 
https://www.solarwatt.com/
IPV system installer: 

Obrist GmbH

Address: 
Via Pillhof 7, Appiano (BZ), Italy
Contact: 
info@obrist.bz.it +39 0471 971 800
Web: 
https://www.obrist.bz.it/en
Other stakeholders: 

Roland Decarli, Jürgen Prosch

The BIPV system is part of the translucent glass roof of a steel canopy placed within the building’s complex. It is made of semi-transparent modules that provide an aesthetically attractive shading effect.

The integrated photovoltaic system was calculated to have an annual production of 28,300 kWh (Eng. Klaus Fleischmann). It contributes, together with the other PV system installed on the headquarter buildings, to 55% of the winery electricity consumption, mainly due to the machineries and the air conditioning system of the wine cellar. The most of the generated electricity is self-consumed by the buildings. The use of the photovoltaic technology is added to a combined technique of solar panels and efficient capture of the heat, able to provide 70% of all hot water required (Colterenzio Winery).

The 184 integrated PV modules Solarwatt (M140-36 GEG LK XL) are standard semi-transparent panels made of 36 monocrystalline cells placed between glazed laminates. They are mounted as a simple glass into the canopy roofing system and naturally ventilated. The bearing structure is made of steel profiles that guarantee the roof water tightness.

Since 2009, the Colterenzio Winery headquarter has been under renovation to be harmonized and steered towards environmental sustainability. Energy saving, costs reduction and an environmentally friendly high-quality wine production are the main goals that led the company to equip all buildings with photovoltaic and solar panels. A semi-transparent BIPV plant was integrated on the canopy in order to achieve a high aesthetic quality. It did not require substantial changes to the original architectural appearance. No special requirements in relation to the building permit were needed (Colterenzio Winery).

Achieving a high aesthetic quality was one of the main design purposes, together with the energy performance. Thanks to the BIPV shading effect, the space covered by the solar canopy takes on an attractive appearance, a composition of light and shadow changing throughout the day. This allows an area usually used for the grapes storage to be used also for different purposes. The canopy is sometimes a place used as a venue for events (bergmeisterwolf). This case study showed how the BIPV technology can be used in order to improve the potentialities of a construction. All its functions should be analysed from the beginning of the design process to maximize the PV integration benefits. So, all the stakeholders (owner, designers, consultants, technics, etc.) should be involved to work together (bergmeisterwolf).

PROJECT DATA

Project type: 
BIPV SYSTEM DATA
Architectural system: 
canopy
Integration year: 
2014
Active material: 
monocrystalline silicon
Module transparency: 
System power [kWp]: 
27.7
System area [m²]: 
236
Module dimensions [mm]: 
1,600 x 800
Modules orientation: 
South
Modules tilt [°]: 
20
Annual PV production [kWh]: 
28,300
BIPV SYSTEM COSTS
Total cost [€]: 
138,775
€/kWp: 
5,010
€/m²: 
589
IPV components producer: 

SOLARWATT GmbH

Product type: 
Address: 
Maria-Reiche-Straße 2a, Dresden, Germany
Contact: 
info@solarwatt.com +49-351-8895-0
IPV system installer: 

Obrist GmbH

Address: 
Via Pillhof 7, Appiano (BZ), Italy
Contact: 
info@obrist.bz.it +39 0471 971 800
Str. Vino 8, Appiano (BZ), Italy

Eurac Research