The announcement comes only days after SoloPower defaulted on a $10m loan it received from the state of Oregon’s department of energy for its inchoate Portland factory.

SoloPower makes lightweight, flexible thin-film modules based on copper, indium, gallium, selenide (CIGS) technology, targeting commercial and industrial rooftops where heavier, more rigid modules are not an option.

Several years ago the company was awarded a $197m federal loan guarantee by the Department of Energy on the basis of its plan to build a $340m factory in Portland and employ hundreds of workers.

SoloPower kicked off commercial production at a single manufacturing line earlier this year.