Investments (Tables)

12 Months Ended

Dec. 31, 2012

Investments Reported In Other Current and Non-Current Assets

The following is a summary of our investments and the related funding commitments (in millions):

	December 31, 2012				December 31,
			Funding		2011
	Assets		Commitments		Assets
Chem-Mod LLC	$	4.0	$	—	$	—
Chem-Mod International LLC		2.0		—		—
Clean-coal investments
Non-controlling interest in five limited liability companies that own twelve 2009 Era Clean Coal Plants		7.8		0.4		8.9
Controlling interest in a limited liability company that owns two 2009 Era Clean Coal Plants		1.3		—		1.5
Non-controlling interest in six limited liability companies that own five 2011 Era Clean Coal Plants		13.2		—		—
Controlling interest in a limited liability company that owns ten 2011 Era Clean Coal Plants		14.3		3.9		33.4
Notes receivable and interest from co-investor related to the sales of three 2009 Era Plants		8.5		—		8.0
Other investments		3.0		2.9		2.0
Total investments	$	54.1	$	7.2	$	53.8