NEW YORK (Standard&Poor's) March 14, 2006--Standard&Poor's Ratings Services said today that its ratings on power generation company Calpine Corp. remain at 'D' because the company filed for bankruptcy in December 2005. At the same time, Standard&Poor's revised its recovery rating on Calpine's second-lien debt to '4' from '2'. The '1' recovery rating on Calpine's first-lien debt remains unchanged. The recovery ratings remain on CreditWatch with negative implications where they were placed Dec. 21, 2005. The '1' recovery rating indicates the high expectation of full recovery of principal. The '4' recovery rating indicates the expectation of marginal (25%-50%) recovery of principal. "The updated recovery ratings reflect Calpine's recently closed $2 billion debtor in possession financing,