Property, plant and equipment, net (Tables)

12 Months Ended

Dec. 31, 2020

Property, plant and equipment, net

Schedule of property, plant and equipment, net

	December 31,		December 31,		Depreciable
	2020		2019		Lives
Land	$	6.4	$	6.4
Office equipment, machinery and other		6.7		6.5	3	-	10	years
Leasehold improvements		2.1		2.1	7	-	15	years
Asset retirement obligation		23.6		23.4	1	-	43	years
Plant in service		885.1		848.1	1	-	45	years
Construction in progress		0.8		7.2
		924.7		893.7
Less accumulated depreciation		(432.9)		(391.6)
Total property, plant and equipment, net	$	491.8	$	502.1