Intake and Discharge Inspection with Sediment Mapping

Constellation Clearsight inspected the intake bays and discharge tunnels of a nuclear power plant by using remotely operated submersibles.

A nuclear power plant, with a total capacity of over 2 GW which provides enough electricity to power about 2 million homes, requested an inspection of their intake bays and discharge tunnel. Traditional inspection methods require divers, a wide range of equipment, and extra supervision. All these items add to the continuous list of safety concerns for the evolution.  

However, by using a remotely operated vehicle (ROV) submersible to perform the inspection, we reduced the risk of safety incidents, eliminated the need for extra supervision, and saved personnel exposure and money. 

With the ROV, we performed a visual inspection and a sonar-based sediment mapping of the intake structure without the use of human divers. We also performed a visual assessment of the discharge tunnel using a collision-tolerant unmanned aerial system (UAS). Both inspections were performed without personnel entry.  

With these types of technology, we were able to provide an extensive report to the customer filled with insights, visual imagery, condition assessments, and a sediment map.  

Ready to Start an Inspection Project?

Request a quote today to begin the process.


  • $1M+ Savings over traditional methods
  • Reduced personnel needed from 16 to 4
  • Performed inspections in 60 hours compared to 110 hours
  • ROV data quality surpassed diving data

Discover the Power of Clearsight Today