Trina Solar signs $158 million deal with Greenergy

Specific terms of the fixed-price agreement were not disclosed.

GreenergyCapital Chief Executive Luca D'Agnese called the deal "the most important long-term agreement" concerning his company's solar module supply. The Milan, Italy-based investment company invests in a range of renewable-energy and energy-saving products.

Trina shares rose $1.01, or 3.3 percent, to $31.72.