ROV or Remotely Operated Vehicle are submersible robots used in offshore energy subsea operations.
ROVs are controlled by an operator, known as a pilot, and their team topside. This will typically be onboard a specially designed dive vessel.
ROVs can be used for anything from inspection of subsea systems to construction and maintenance, and have been used widely to help construct subsea well manifolds and connect subsea pipelines as well as manipulating subsea vales.
Today ROVs are used more widely than ever owing to their increasing operating depths and the ability to have them working around the clock with multiple operating crews, as opposed to a dive crew that have only limited dive time and can be greatly effected by weather.