0001181431-08-063763 4 1 20081121 20081124 20081124 COOPER JOHN R 0001168815 DE 1130 4 34 001-32393 081210751 C/O ENVIRONMENTAL POWER CORP ONE CATE ST PORTSMOUTH NH 03801 ENVIRONMENTAL POWER CORP 0000805012 4991 042782065 DE 1231 120 WHITE PLAINS RD SUITE 610 TARRYTOWN NY 10591-5546 914-631-1435 120 WHITE PLAINS RD SUITE 610 TARRYTOWN NY 10591-5546 4 1 rrd224519.xml NOVEMBER 21, 2008 PURCHASE