According to PGIE's August 19th PR they will be distributed electronically.
"PGI ENERGY, INC. announces a 1 for 1 stock dividend to all record shareholders to take effect September 15, 2011. The Company will issue a 1 for 1 stock dividend certificate to all shareholders of record up to the date the dividend shares are distributed on September 15, 2011. Shares held in brokerage account will have their account credited by CEDE electronically.