The U.S. has anted up a whopping $203.7M to marine technology developer Teledyne Benthos in order to create a submarine drone for military activity.
The plan is for Benthos to repurpose the Slocum Glider, which is a type of autonomous underwater vehicle (AUV) that incorporates small changes in buoyancy along with wings to propel itself with extremely low power consumption.
Essentially the ocean powers the drone, eliminating environmentally unfriendly fuel and harvesting the thermocline (thermal energy) that resides in the ocean.