**Requester:** Danny Cunningham

BP Solar

**Date:** December 19, 2002

Area Temp. Voc Isc FF Vmax Imax Pmax Aper η

(cm2) (°C) (V) (A) (%) (V) (A) (W) (%)

**BP Solar** (CdS/CdTe module)

**568901**

12/17/02 SPIRE 240A 8512.0 24.9 44.98 3.124 66.1 34.21 2.713 92.83 10.91

12/18/02 LACSS SpectroLab X200 storage state 8512.0 25.2 44.83 2.995
67.6 34.58 2.626 90.81 10.7

12/16/02 SOMS OUTDOORS \@988 W/m^2^ 8512.0 20.1 44.67 2.931 67.6 34.53
2.563

Normalized and Spectrally Corrected SOMS data 20.1 3.015 91.03 10.7

**569401**

12/17/02 SPIRE 240A 8512.0 25.0 45.01 3.173 65.8 34.33 2.738 93.99 11.04

12/18/02 LACSS SpectroLab X200 storage state 8512.0 25.2 44.87 3.040
67.9 34.68 2.671 92.61 10.9

12/16/02 SOMS OUTDOORS \@1007 W/m^2^ 8512.0 20.4 44.52 3.026 67.6 34.42
2.645

Normalized and Spectrally Corrected SOMS data 20.4 3.053 91.86 10.8

**572002**

12/17/02 SPIRE 240A 8512.0 25.0 45.27 3.127 67.1 34.47 2.756 95.02 11.16

12/18/02 LACSS SpectroLab X200 storage state 8512.0 25.2 45.20 2.982
69.0 35.18 2.642 92.95 10.9

12/16/02 SOMS OUTDOORS \@986 W/m^2^ 8512.0 20.5 45.34 2.907 69.0 35.19
2.585

Normalized and Spectrally Corrected SOMS data 20.5 2.996 93.76 11.0

**813104**

12/17/02 SPIRE 240A 8512.0 25.0 44.48 3.188 65.5 33.29 2.789 92.86 10.91

12/18/02 LACSS SpectroLab X200 storage state 8512.0 25.2 44.35 3.051
67.0 33.86 2.678 90.67 10.7

12/16/02 SOMS OUTDOORS \@985 W/m^2^ 8512.0 18.5 44.43 2.979 67.1 34.18
2.600

Normalized and Spectrally Corrected SOMS data 18.5 3.072 91.65 10.8

**815302**

12/17/02 SPIRE 240A 8512.0 25.0 44.07 3.173 65.4 32.79 2.787 91.37 10.73

12/18/02 LACSS SpectroLab X200 storage state 8512.0 25.2 43.86 3.055
66.8 33.30 2.689 89.53 10.5

12/16/02 SOMS OUTDOORS \@990 W/m^2^ 8512.0 20.6 44.03 2.994 67.0 33.52
2.633

Normalized and Spectrally Corrected SOMS data 20.6 3.071 90.52 10.6

Sample Description Aperture area Total area

\(#\) length width area length width area

\(cm\) (cm) (cm2) (cm) (cm) (cm2)

568901, 569401& 572002 CdS/CdTe model#BP990L 152.0 56.0 8512.0 154.9
60.9 9433.4

813104, 815302 CdS/CdTe model#BP980L 152.0 56.0 8512.0 154.9 60.9 9433.4

Total area is outside edge of glass to outside edge of glass.

Aperture area was measured inside of taped frame to inside of taped
frame.

Aperture area was used in the efficiency calculation.

Estimated total uncertainty in the NREL Spire measurement efficiency is
±10%.

Spire 240A measurements were taken with new Peak circuit installed, and
running on new NREL software.

The SPIRE 240A monitor calibration was set to 1.203 using the Si
reference cell in a module package sn#150576 with a M=0.960.

Estimated total uncertainty of the NREL Large Area Continuous Solar
Simulator measurements is ±5%.

The LACSS monitor calibration was set to 103.23 mV using the GaAs
reference cell sn#S25 with a M=1.008.

Samples were tested under the LACSS in a storage state condition.

Estimated total uncertainty of the NREL Outdoor measurements is ±5%.

Outdoor sample temperature is measured on the back surface and may not
represent the actual junction temperature.

NREL Outdoor (SOMS) Isc, Pmax and Eff measurements are corrected to
1000W/m2 and Spectrally Corrected using an M=0.977 for 12/17/02.

NREL Outdoor (SOMS) measurements are not corrected for temperature.

The solar spectrum that was taken during the outdoor tests are
available.

Dark IV\'s are included.

(Tracking #999)