The Power Transmitter is a Power module that extends the range of a power source. It is constructed with the Habitat Builder and can be placed on the seabed. It can also be damaged and destroyed by striking it 3 times with the Survival Knife.
The Power Transmitter connects to nearby power sources (Solar Panels and Thermal Plants) and transmits their power to a Seabase or another Power Transmitter. A glowing blue line will be generated between the Power Transmitter and any objects that it is connected to. A Power Transmitter has a range of about 100; a "power line" of transmitters can be built to transfer power over a long distance.