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SunCubes™ Output ratings
(3 March 2008 subject to change)
Flat panels have IEC61215 and other standards to measure output against. CPV
now has IEC62108 but the IEC found it too hard to measure CPV output and so
dropped it from the standard. This means ALL CPV manufacturers have no
agreed standard to measure output. The developers have decided to provide
four output measurements for the SunCube™. So until the CPV industry has an
output standard, this is how the SunCube™ will be rated.
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SunCube™ DC kWh generation per year based on
10 year NASA averaged Adelaide Direct Beam solar availability of 5.5
kWh/m2/day 700 to 750 DC kWh per year.
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Flat panel Watt peak array size needed to
achieve the same DC kWh generation per year as the SunCube™ 500 Watts
peak (STC) of fixed flat panels.
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SunCube™ Watts output under a very
conservative 750 W/m2 of real world sun and real operating cell
temperature 221 Watts. (see below for detailed measurement
protocol)
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SunCube™ flat panel equivalence Watt peak
output under flat panel Standard Test Conditions (STC) of 1,000 W/m2, 25
deg C cell temperature & AMI (Air Mass Index) 1.5. 322 Watts peak
(STC).
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Is this a real world output? No it is not,
but then neither is the STC Watt peak output of a flat panel.
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The SunCube™ flat panel equivalence Watt
peak output is a calculation as to what the developers would expect if
the SunCube was subjected to the STC Watt peak output rating system used
by flat panels.
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We know of no measurement technology or PV /
CPV test lab that can currently do this measurement.
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The
innovative and ground breaking SunCube™ features a high efficiency
(>35%) solar energy harvester, smart dawn to dusk Max kWh™internal 2
axis sun tracker and cool PV™ low operational CPV cell temperature.
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