9999999995-10-000913 EFFECT 1 20100331 20100402 20100331 ENVIRONMENTAL POWER CORP 0000805012 4991 042782065 DE 1231 EFFECT 33 333-138999 10726469 120 WHITE PLAINS RD SUITE 610 TARRYTOWN NY 10591-5546 914-631-1435 120 WHITE PLAINS RD SUITE 610 TARRYTOWN NY 10591-5546 EFFECT 1 primary_doc.xml