XP. Haugaard, 2D. Aara, 3P. Poulsen, 3B. Bentzen, P., 4P. M. Nielsen and 4J. Andersen

1 Esbensen Consulting Engineers A/S, Gammel Koge Landevej 22, 2500 Valby, Denmark
2 Gaia Solar A/S, Hammerholmen 9-13, 2650 Hvidovre, Denmark
3 FAKTOR 3 ApS, Vesterbrogade 24b 2. sal, 1620 Kobenhavn V, Denmark
4 Idealcombi A/S, Norre Alle 51, 7760 Hump, Denmark
* Corresponding Author, p. haugaard@esbensen. dk

Abstract

The project group is developing a low-cost PV-window for building owners and architects to use in building designs for both new and retrofit buildings. With a U-value of 1.20 W/m2K the developed PV-window fulfills the requirements within the Danish Building Regulation and as a bonus it produces electricity to the building.

Architects have found the PV-window interesting to use in building designs hence it offer many different possibilities to regulate the thermal indoor climate, daylight penetrations, reflections and communications. Tests have shown, depending on the design and layout of the PV-pane, that the PV-window can supply sufficient daylight to buildings.

The PV-window addresses the field of making energy right buildings using the energy falling on the buildings to supply itself in a fully integrated an aesthetical way and not as an add-on to buildings. It helps reducing the need for primary energy and gives the building a clearly environmentally green profile.

The development of this product has not been completed and will continue.

Keywords: PV-window, Building Regulation, low cost, custom design

1. Introduction

1.1 Scope

From the proactive strategy of reducing prices on integrated PV-systems the project aims to develop a PV-window which is cheaper than and technical fully compatible with the existing relative expensive standard PV-panels. Hence it is also the aim to develop an elegant PV-window solution that integrates architecture, aesthetics and flexibility in its design thus becoming an elegant attractive solution for both new and retrofit buildings. The PV-window must apply to the current Building Regulations in Denmark which has been tightened in 2006.

1.2 Objective

It is the objective to reduce the price on the PV-window by up till 20 % or more compared to similar products, fulfill the Danish Building Regulation, integrate, demonstrate and test the PV- window in an actual building and learn how it influences on thermal indoor climate in spaces.

The project is a part of the Danish PSO-F&U scheme sponsored by Energinet. dk.