eur op eanexhibitionofcreati vityandinnovation - Europe Direct Iasi

EUROINVENT 2013
Moldova State University
8.11.
Title
Authors
Institution
Patent no.
Description EN
Class no.
Street Lighting system with CdTe thin film PV cells and
LED lamp
Potlog Tamara, Dumitriu Petru
Moldova State University
Department of Physics and Engineering
MD-3112
The use of monocrystalline Si PV cells, known for their high
efficiency is too expensive for utilization in the street lighting.
Therefore we propose a system with CdTe thin film PV cells
and LED lamp. LED lamps consume up to 72% less energy
and have a lifespan of up to 10 years of continuous operation
comparing to other lighting sources, meaning a much less
energy cost. CdTe thin film PV cells were fabricated by closespace
sublimation method in a superstrate configuration. The
investigation at the room temperature under of 100 mW/cm 2
illumination through the wide gap component of CdTe thin
film PV cell shows a value of conversion efficiency of solar
energy to electric energy about 10.5% (Fig.1). In order to
maximize energy collection and conversion, CdTe single cells
are connected together (series and parallel) and housed in a
module in order to obtain necessary power (Fig.2).
2. Energy and sustainable development
INTERNATIONAL EXHIBITS
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