CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 91.5	$ 85.6
Restricted cash	10.0	13.3
Accounts receivable	37.1	37.3
Current portion of derivative instruments asset (Notes 5 and 6)	3.7	4.0
Inventory	16.2	16.0
Prepayments	9.8	5.9
Other current assets	2.6	2.8
Total current assets	170.9	164.9
Property, plant, and equipment, net	717.0	733.2
Equity investments in unconsolidated affiliates (Note 3)	272.2	266.8
Power purchase agreements and intangible assets, net	236.6	246.2
Goodwill	36.0	36.0
Derivative instruments asset (Notes 5 and 6)	4.1	4.6
Other assets	4.7	5.1
Total assets	1,441.5	1,456.8
Current liabilities:
Accounts payable	4.7	4.5
Accrued interest	4.3	0.7
Other accrued liabilities	20.6	24.4
Current portion of long-term debt (Note 4)	109.4	111.9
Current portion of derivative instruments liability (Notes 5 and 6)	6.0	7.6
Other current liabilities	9.7	1.8
Total current liabilities	154.7	150.9
Long-term debt, net of unamortized discount and deferred financing costs (Note 4)	728.3	749.2
Convertible debentures, net of unamortized deferred financing costs	101.1	100.4
Derivative instruments liability (Notes 5 and 6)	23.4	21.3
Deferred income taxes	67.3	68.3
Power purchase and fuel supply agreement liabilities, net	24.9	25.3
Other long-term liabilities	56.0	55.5
Total liabilities	1,155.7	1,170.9
Equity
Common shares, no par value, unlimited authorized shares; 115,229,497 and 114,649,888 issued and outstanding at March 31, 2017 and December 31, 2016	1,273.4	1,272.9
Accumulated other comprehensive loss (Note 2)	(146.4)	(148.5)
Retained deficit	(1,062.5)	(1,059.8)
Total Atlantic Power Corporation shareholders' equity	64.5	64.6
Preferred shares issued by a subsidiary company (Note 10)	221.3	221.3
Total equity	285.8	285.9
Total liabilities and equity	$ 1,441.5	$ 1,456.8