See the following two articles.
It sure sounds like a 'margin call' to me. After selling First Wind assets to SUNE for megabucks the hedge funds that originally owned FW just took back some of those assets for pennies. What surprises me is that SUNE is a public corporation and yet they can keep the names of projects sold private? SUNE shareholders ought to be storming the gates and demanding the immediate replacement of all SUNE management.