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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

Weyerguet farm

renovation

listed building

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

Weyerguet farm

Weyerstrasse 64, Köniz, Switzerland

Introduction

Stakeholders

Design approach

Aesthetic integration

Energy integration

Data

Producer and installer

Map

Author

The refurbishment of the Weyerguet Farm in Wabern, Germany, is a clear example of solar architecture on a historical building in an agricultural zone. The farm, originally built in 1842, was transformed into a condominium with 9 apartments and common areas, equipped with a photovoltaic system integrated into the roof. Before the refurbishment, the building consumed approximately 213,600 kWh/year. The energy efficiency measures adopted (insulation of the roof, walls and floor, new windows, and geothermal heat pumps) led to a reduction in the overall electricity requirements of almost 80%. Thanks to the energy efficiency works and solar architecture carried out, the building was awarded the 2020 Swiss Solar Prize.

Source: 3S Solar Plus AG, Schweizer Solarpreis 2020

STAKEHOLDERS

Main building designer: 

Halle 58 Architekten GmbH

IPV components producer: 

3S Swiss Solar Solutions AG

Address: 
Schorenstrasse 39, Thun, Switzerland
Contact: 
info@3s-solar.swiss +41 332242500
Web: 
https://www.3s-solar.swiss/it/?hsLang=it
Other stakeholders: 

Hansueli Pestalozzi, Monika Dillier, Brigitte Wittwer, Peter Schürch

The farm was refurbished in accordance with sustainable criteria; the materials used were mainly wood and ecologically compatible building components. The living area, which was increased by almost ¾, is characterised by a modern interior design, while maintaining the rural character.

The BIPV modules installed are flat, in matte glass, and are terracotta in colour. They blend perfectly with the form and colour of the building and the surroundings.

By generating approximately 37,600 kWh of electricity per year, the BIPV system covers 78 % of the energy requirements of the condominium.

PROJECT DATA

Project type: 
Heritage constraint: 
Coverage of electric consumption [%]: 
78
BIPV SYSTEM DATA
Architectural system: 
opaque roof
Integration year: 
2019
Active material: 
monocrystalline silicon
Module transparency: 
System power [kWp]: 
37
System area [m²]: 
261
Modules orientation: 
East, West
Annual PV production [kWh]: 
37,600
IPV components producer: 

3S Swiss Solar Solutions AG

Address: 
Schorenstrasse 39, Thun, Switzerland
Contact: 
info@3s-solar.swiss +41 332242500
Web: 
https://www.3s-solar.swiss/it/?hsLang=it
Weyerstrasse 64, Köniz, Switzerland

Eurac Research