Stuart Wenham, Suntech’s CTO, described the advance at a solar conference this week in Seattle, and said the company has already started selling solar panels made using the process.

This news may spell trouble for businesses in the United States and elsewhere hoping to commercialize new thin-film solar technologies. In theory, thin-film technology is cheaper per watt than silicon technology. But its makers have found it hard to compete with Chinese makers of conventional silicon solar panels, which have steadily cut costs in part by improving manufacturing techniques and in part because government support has allowed them to scale up production quickly.

Read the whole story here: High Efficiency Solar Panels