Between the lower cost of the materials used in CIGS  and its easier installation process, thin film is much cheaper to the end consumer than normal silicon solar panels. Yet because of its much lower efficiency rates, it has yet to dominate the solar market. It’s really not viable unless you have large amounts of space where the lower wattage per square meter doesn’t matter. However, if thin film efficiency rates continue to close in on regular solar panels, the industry may take a fresh look at this cheaper technology.

When Ascent Solar offered up 4.6 million public shares earlier this month (ASTI), they sold at $6.50. After falling sharply, the stock has recovered and is now selling at close to its original offering. News of this efficiency breakthrough may increase confidence in the company, as well.

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