Amdemeskel, Mekbib Wubishet

Canulescu, Stela

Juutilainen, Line Tollund

Poulsen, Peter Behrensdorff

Rødder, Kristin

Rødder, Peter Melchior

Thorseth, Anders

Thorsteinsson, Sune

Online Research Database In Technology

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Downloaded from orbit.dtu.dk on: Nov 09, 2017PV BALCONY FENCE - a highly esthetic cost efficient PV integrated balconyPoulsen, Peter Behrensdorff; Juutilainen, Line Tollund; Thorsteinsson, Sune; Thorseth, Anders;Amdemeskel, Mekbib Wubishet; Canulescu, Stela; Rødder, Peter Melchior; Rødder, KristinPublication date:2016Document VersionPublisher's PDF, also known as Version of recordLink back to DTU OrbitCitation (APA):Poulsen, P. B., Juutilainen, L. T., Thorsteinsson, S., Thorseth, A., Amdemeskel, M. W., Canulescu, S., ...Rødder, K. (2016). PV BALCONY FENCE - a highly esthetic cost efficient PV integrated balcony. Poster sessionpresented at Norwegian Solar Cell Conference 2016, Oslo, Norway.PV BALCONY FENCE - a highly esthetic cost eﬃ  cient PV integrated balcony Peter Behrensdorﬀ  Poulsen*,a, Line Tollund Juutilainena, Sune Thorsteinssona, Anders Thorsetha, Mekbib Wubishet Amdemeskela, Stela Canulescua, Peter Melchior Rødderb, Kristin RødderbaDepartment of Photonics Engineering, Technical University of Denmark, Frederiksborgvej 399, Building 130, 4000 Roskilde, Denmark, *ppou@fotonik.dtu.dkbSolarLab, 8260 Viby J., DenmarkKeywords: Solar cells, PV applications, Characterization, Energy systemsIntroduction • This project aims to devel-op and demonstrate a PV-panel which will both work as a balcony fence and at the same time produce energy to the elec-tricity grid. The PV-panel will be building integrated, be constructed with a uniform color to the extend its possible, and have a mechanical strength complying with safety norms and rules in Denmark. The product will have a marginal installation price of 1 €/Wp, and it must be an attractive product for architects, which can esthetically be in-tegrated in balcony’s by means of a simple installation. The solar cells on the balcony fence have in general a suboptimal position and orientation, where it is to be expected that the solar panels not will be illuminated homogenously for extended time periods and furthermore the direct sunlight will hit the panels in fairly large angles. This publi-cation focus on investigation of optimal light coupling into the solar cell and a qualiﬁ ed choice of front glass containing microstruc-tures. Experimental • In this work, 3 experimental setups has been realized to fuel a mathe-matical tool to calculate the annual yield of a given PV panel buildup for a balcony. • Transmission measurements on glass• Transmission measurements on sin-gle cell panels• Field test of single cell panelsAn optical model of the balcony has been build, based on the measurements to cal-culate the annual yield of the balcony with a given build up for the best choise (see Figure 1). The diﬀ erent setups are shown. In Figure 2 the setup used for measuring transmission on the raw glass in diﬀ erent angles of incidence is shown. A directional ﬁ ber coupled light source is mounted on a rotating stage with the center of rotation be-ing at the front surface of the glass. Behind the glass is an integrating sphere with a ﬁ -ber coupled spectrometer which acts as a detector.  For reference a normal incidence measurement without a sample is used, and subsequently a sample is mounted and the transmission is measured from 0 to 70o. The light source used is a deuterium tungsten halogen lamp (Ocean Optics DH-2000) providing light in the spectral range from 200-2500 nm. and the spectrometer used is a Ocean Optics QE65000 with the ability to measure from 200-1100 nm. How-ever, despite the good spectral ranges only signals in the wavelength range 500 nm - 830 nm had a suﬃ  cient large signal to noise ratio. This is most likely due to the limited lamp power of 45 W in combination with the optical losses in the ﬁ bers the spec-trometer signal was very low. In ﬁ gure 4 the angular dependent transmission is shown for 9 glass samples. Figure 3 shows an il-lustration and a picture of the setup used for measuring angular response on mini modules. wo tubes are directed towards the sun, letting only the direct sunlight onto the sample, which is located in a box at the end of the tube.  In the box the sample is placed on a rotating sample holder, and in the other box a reference sample is placed with an orientation normal to the rays. The short circuit current is measured for the ref-erence sample and the sample under test simultaneous together with a time stamp. The time stamp enabling data afterwards can be correlated with a tracked pyrheliom-eter located on campus.  The tube-lightbox assembly is mounted on a platform where the tilt is adjusted manually with the help of a shaft that is rotated with a worm gear. The Field test is the next to be installed to com-plete the experimental setups in the project. GlassEVASolar cellAirIntegrating sphereGlass sampleLight sourceFigure 2 - setup for measuring transmission on the raw glassFigure 1 - Optical model of PV panel for balcony use.Figure 3 - illustration and picture of the Solar Canon - setup for measuring angular response on the mini modules.Figure 4 - Angular transmission of glasses

PV BALCONY FENCE - a highly esthetic cost efficient PV integrated balcony

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PV BALCONY FENCE - a highly esthetic cost efficient PV integrated balcony

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