Two years ago, President Barack Obama hailed Loveland-based Abound Solar Inc. for its state-of-the-art technology and its potential to create thousands of jobs. ... Abound received a $400 million loan guarantee from the U.S. Department of Energy, drew down $70 million and, by the end of last year, ramped up production at its 400-employee Longmont-area plant. This year, however, the attention directed toward Abound has spun swiftly from praise to skepticism. At the end of February, Abound laid off 280 workers -- about 90 were temporary employees -- at its Longmont plant and halted production ...