9999999995-10-002918 EFFECT 1 20101013 20101014 20101013 ATLANTIC POWER CORP 0001419242 4900 550886410 A1 1231 EFFECT 33 333-168855 101122677 200 CLARENDON STREET FLOOR 25 BOSTON MA 02116 617-977-2701 200 CLARENDON STREET FLOOR 25 BOSTON MA 02116 EFFECT 1 primary_doc.xml