CEO said on CC today that EBITDA is 15M$ per quarter in a normal environment. That's 60M$/year. Take out about 21M$ of depreciation/amort, 10M$ interest, 8.7M$ tax (assuming 30%, upper end of range) that leaves 20.3M$ profit on 84M shares or 0.24$ EPS.
The potential EBITDA is low due to the first solar contract being restructured. In the future this may change.
A look at tangible equity at June 30, 2012: Tangible book = book value - goodwill - deferred tax - intangible assets - 10% provision on inventory = 135.5M$ or 1.61$ per share
I think below 1.70$ is a great entry point.