2009 SoloPower, Inc. Confidential 1

Reliability of CIGS Modules

Deepak Nayak, Norbert Staud, Burak Metin, Eric Lee, and Mustafa Pinarbasi

SoloPower Inc.San Jose, California, USA

2009 SoloPower, Inc. Confidential 2

Long-term module performance

Accelerated outdoor test: Short circuit test

Short-circuit test: 20-25% higher current than Ipm

Outdoor load test: Resistive load at Pmax

2009 SoloPower, Inc. Confidential 3

Modules in outdoor test

2009 SoloPower, Inc. Confidential 4

Modules in outdoor test

2009 SoloPower, Inc. Confidential 5

Modules in outdoor test

2009 SoloPower, Inc. Confidential 6

SoloPower CIGS ProductCurrent Product Next Generation

UL and IEC Certified Flexible and light weight

2009 SoloPower, Inc. Confidential 7

SoloPower Product Line

0.48 cm2, 13.76%

102 cm2, 12.25%

1.07 m2 module107.5 W output10% Module

SoloPower SFX1 Module Advanced polymer packaging Light weight (~1 lbs/sq.feet)

CIGS Cells Flat Plate Modules Flexible Modules

UL and IEC Certified

2009 SoloPower, Inc. Confidential 8

Summary - Module Performance

Module power stabilizes after few weeks

Stable power up to 6 months under accelerated test

No change to Isc

UL and IEC certified