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Solar Awards Device Integration Award Final DR 3/9/09 12:22 Page 23
SOLAR AWARDS
Device Integration Award
First Solar
GreenMountain
FS Series 2 PV Module
Engineering
First Solar FS Series 2 PV Modules are Trac-Stat SL1
designed for use in grid-connected,
commercial power plants and are sold to GreenMountain Engineering diagnostic
leading system integrators, independent instrument for measuring tracker
power project developers and utility performance, is the Trac-Stat SL1. The
companies worldwide. The modules are SL1 is a high-resolution data logging
CdTe thin film in construction that will sensor that mounts on a solar tracker. It
generally produce more electricity under records the angle of error between the
real-world conditions than conventional sun and the tracker for use in the
solar modules with similar power ratings development of tracking, concentrating
Honeywell
and the lowest cost per watt overall. photovoltaic (CPV) and solar thermal
systems. There are many possible PowerShield PV325
Solar cells become less efficient at sources of error in a solar tracking
converting solar energy into electricity as system, from tracker installation to wind Honeywell’s ‘PowerShield’ PV325, is
their cell temperatures increase. However, loading to thermal expansion to subtle designed to provide greater levels of
23
the efficiency of Cadmium Telluride is less algorithm errors. protection to photovoltaic solar cells and
susceptible to cell temperature increases modules that are located in more hostile
www
than traditional semiconductors, enabling Identifying and mitigating these issues is environments. The material is UV-,
.solar
First Solar thin film modules to generate key to maximising system performance moisture- and weather-resistant, and
relatively more electricity under high and driving the cost-competitiveness of designed to also withstand the electrical
-pv-management.com
ambient ( high cell) temperatures. technologies like CPV that rely on load produced by the modules, which can
accurate tracking. The SL1 is a high- operate at up to 1,000 volts of electricity.
The semiconductor material also converts resolution data logging sensor that The material was developed primarily for
low and diffuse light to electricity more mounts on a solar tracker. It records the rigid PV modules, which are specifically
efficiently than conventional cells under angle of error between the sun and the designed to feed power into a utility or
cloudy weather conditions. CdTe permits tracker for use in the development of local power grid.The reflective white
simple device structures and tracking, concentrating photovoltaics and material is based on Honeywell’s high-
Issue IV 2009
manufacturing processes, leading to low solar thermal systems. With a resolution performance barrier film technology. The
cost production. Front (substrate) and of +/-0.02°, the SL1 meets the precision dielectric, or insulator material, has a
back (cover) laminated glass sheets are requirements of CPV tracking systems. traditional five-layer design that includes
heat-strengthened to withstand handling The data collected can be used to two outer protective layers based on
and thermally induced stresses, while characterize the error in a tracking ethylene-chlorotrifluoroethylene (ECTFE)
avoiding breakage over the 25+ year system, log controller performance over fluoropolymer film and a core
module life. time, and calibrate and align trackers. polyethylene terephthalate (PET) layer, as
This information is essential for the well as two inner bonding layers of
Manufactured in highly automated state- development of the high-accuracy proprietary adhesive material. The design
of-the-art facilities certified to tracking systems required for CPV. is an alternative to traditional backing
ISO9001:2000 quality and ISO14001:2004 systems based on poly-vinyl fluoride
environmental management standards. The SL1 offers the flexibility of analog or (PVF).
Tested by leading US and European USB output with both interactive and
institutes and certified for reliability and stand-alone operation modes. In
safety: Safety Class II; IEC 61646; CE interactive mode, the operator can read
Siemens AG
Mark & UL 1703. current sun position data over a USB SINVERT 1700 MS
Modules are life cycle managed with a connection for tracker calibration and
collection and recycling program, monitoring. In stand-alone mode, the SL1 SINVERT PV inverters, are a family of
providing module owners with no cost , can log data to internal memory over three phase grid-connected inverters in
pre -funded , end of life take back and extended periods of operation for later the range of 60kVA up to 1700kVA. They
recycling of modules. download and analysis. already serve as central inverters in a
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