Back in January, Plug Power (NASDAQ:PLUG) announced that it was in the process of closing on a $1.6 billion loan from the U.S. Department of Energy (DOE) with a rate no higher than 6.5%. At the time, Chief Financial Officer Paul Middleton noted that Plug expected to finalize the loan by the third quarter.This morning, Plug announced that the DOE’s Loan Programs Office (LPO) had agreed to provide it with an up to $1.66 billion conditional commitment loan guarantee. The proceeds of the loan will go toward dev ...