0001047469-10-006616 10-Q/A 5 20100331 20100726 20100726 ATLANTIC POWER CORP 0001419242 4900 550886410 A1 1231 10-Q/A 34 001-34691 10969838 200 CLARENDON STREET FLOOR 25 BOSTON MA 02116 617-977-2701 200 CLARENDON STREET FLOOR 25 BOSTON MA 02116 10-Q/A 1 a2199501z10-qa.htm 10-Q/A EX-31.1 2 a2199501zex-31_1.htm EXHIBIT 31.1 EX-31.2 3 a2199501zex-31_2.htm EXHIBIT 31.2 EX-32.1 4 a2199501zex-32_1.htm EXHIBIT 32.1 EX-32.2 5 a2199501zex-32_2.htm EXHIBIT 32.2