JA Solar Multi-Si Solar Cells Reach Record Efficiency Levels

The breakthrough follows JA Solar's recent progress in high-crystal quality, low dislocation density multi-Si casting and wafering.

SHANGHAI, China, Aug. 1, 2013 -- JA Solar Holdings Co.,

Ltd. (Nasdaq:JASO) ("JA Solar" or the "Company"), one of the world's largest
manufacturers of high-performance solar power products, today announced that
its multi-crystalline silicon ("multi-Si") solar cells have reached an
industry-leading conversion efficiency of 18.3%.

The new level of conversion efficiency, which has been independently
certified by the Yangzhou Opto-Electrical Products Testing Institute,
eclipses that of all previously certified industrial size (156x156 mm2)
multi-Si solar cells. The breakthrough follows JA Solar's recent progress in
high-crystal quality, low dislocation density multi-Si casting and wafering.
JA Solar's R&D and production teams plan to integrate the new technology
into existing manufacturing lines for assembly into modules for commercial
use.

"This latest advance is a real testament to the exceptional R&D work going
on at JA Solar, and another key step in our efforts to meet the growing
demand for high-performance solar power products," said Mr.
Yong Liu, CTO of JA Solar. "The superior conversion efficiency we've
achieved with our multi-Si cells and the rest of our product offering
creates significant value for customers as it increases power generated per
square foot and lowers installation cost per watt."

"These record-breaking results are a testament to the continued leadership
of our R&D team," added by Dr. Wei Shan, chief scientist and general R&D
manager of JA Solar. "We look forward to leveraging our improved multi-Si
technology to meet the needs of our customers and project partners."

Featured Product

OMG Roofing Products  - PowerGrip Universal

OMG Roofing Products - PowerGrip Universal

Eliminate Solar Rack Ballast and Reduce Rooftop Material Handling. PowerGrip™ Universal (PGU) is a commercial roof mount system designed to secure solar racks and other equipment to any type of commercial roofing system. PGU provides a secure connection directly to the roof deck or structural members and is designed to reduce or eliminate ballast in solar racking systems, so there's less weight on the roof and less material handling. Made of heavy-duty cast aluminum, PGU units include a base ring which is secured through the roofing cover and into the structural roof deck, and a waterproof top plate.