“Deep Green” looks like someone’s flying kites from the sea floor. With its 12-meter (39-foot) wingspan and 100-meter (328-foot) cable tethering it to the ocean floor, all it’s missing is a colorful tail.
Though its wingspan seems big, the kites are small compared to other tidal energy designs. That’s one of the big advantages to Deep Green. The kite’s small size lets its turbine operate at greater depths, where currents are slower, boldly going where no tidal turbine has gone before.
When anchored, Deep Green can be steered into a figure-eight like a sport kite, its turbine capturing tidal energy at ten times the speed of the actual stream velocity, according to Minesto, the Swedish developers of Deep Green. When operational, one Deep Green sea kite is expected to generate 500 kilowatts of power.
These sorts of concepts and projects can provide options for cinema and fiction, from creating a story about people living with these types of power generation in extensive use to working on a "power island" ocean platform or trying to protect or shut down such power generators to protect or undermine security or other implications of capturing that energy.
Here is a video of "Deep Green":
Below are videos of other ocean power generation concepts and projects: