Hybrid Power System Engineers at Aberdeen Proving Ground, Md., work on a hybrid power system as part of the Army’s ongoing research in tactical microgrids, which provide resilient and efficient power for soldiers in the field, June 16, 2020. SHARE IMAGE: Download Image: Full Size (0.82 MB) Photo By: Daniel Lafontaine, DOD VIRIN: 200616-O-AQ639-291.JPG Photo Gallery