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In its bankruptcy filing, the company said it had assets of $20.7 billion and liabilities of $16.1 billion as of Sept. 30.

The company said its two publicly traded subsidiaries, TerraForm Power and TerraForm Global, were not part of the bankruptcy.

The company said it secured up to $300 million in new financing from its first-lien and second-lien lenders, which is subject to court approval. The money will be used to support SunEdison's operations during its bankruptcy, such as paying wages and vendors, and proceeding with ongoing projects.

"Our decision to initiate a court-supervised restructuring was a difficult but important step to address our immediate liquidity issues," said Ahmad Chatila, SunEdison chief executive officer.