How Are We Reducing CO2 Emissions?
We are advancing technologies for use on land, underwater, and in space that help ensure worker safety and reduce environmental impacts.
Implementing Remote Operations
Remote operations reduce personnel on board marine vessels and platforms and eliminate the need for transporting employees to and from offshore locations.
Developing Next Generation Subsea Vehicles
This includes our electric eNovus ROV, our battery-operated and self-deployed Liberty™ E-ROV, and our autonomous subsea drone, Freedom™ Autonomous Subsea Vehicle.
Advanced Subsea Construction Vessels
Our U.S.-flagged MSV Ocean Evolution is one of the most ecologically friendly of its type, holding a Green Passport* and using five low-emission diesel engines that meet the EPA Tier 4 standards.
Commitment to Research and Development
We regularly invest in our products and services to make them more resilient, to reduce safety and environmental risks, and to enable greater collaboration and faster response to customer requirements.
*A Green Passport is an inventory of hazardous materials developed and maintained pursuant to the Hong Kong International Convention for the Safe and Environmentally Sound Recycling of Ships, 2009. The Convention is aimed at ensuring that ships, when being recycled after reaching the end of their operational lives, do not pose any unnecessary risks to human health, safety or the environment. A Green Passport contains an inventory of all materials used in the construction of a ship, which will be updated through the working life of the ship to maintain its accuracy. Ultimately, the passport will be delivered with the ship to the recycling yard to facilitate recycling of the ship in a safe and environmentally sound manner. The International Maritime Organization has published guidelines to assist in implementation of the Convention.
Real CO2 Savings
Our next generation, battery-operated Liberty™ Resident System does not require a dedicated vessel to be on standby during ROV operations. As a result, we estimate that a typical Inspection, Maintenance, and Repair (IMR) campaign in the North Sea could see up to 33 MT per day of CO2 saved by eliminating vessel usage during subsea operations with Liberty.
Conventional ROV
MT of CO2 emitted
Daily Emission Savings
MT CO2
Liberty™ Resident System
MT of CO2 emmitted
Estimated Daily CO2 Emissions By Vehicle Type While Using a Support Vessel
ROVs do not directly emit CO2, instead drawing power from the vessel used for the offshore campaign. The Liberty™ Resident System draws power from its battery pack and reduces a typical IMR campaign’s dependence on support vessels to help save 33 MT per day of CO2.
What Could the World Do With 33 MT of CO2 Per Day?
Drive an average U.S. passenger vehicle 81,886 miles
Charge 4,208,563 smartphones
Provide 4 homes with energy for one year
Save the CO2 equivalent of consuming 76 barrels of oil
Estimates calculated using the U.S. EPA Greenhouse Gas Equivalencies Calculator, based on Oceaneering's internally developed assumptions.
Estimated Accumulated CO2 Savings from Liberty™ Resident System
And rising with each subsequent vehicle deployment
*Updated: April 2023
2023 Project Results
The Liberty™ Resident System performed 163 missions and executed 13,933 dive hours as of April 2023, performing the work of a conventional ROV. The vehicle enabled an estimated 72.4% reduction of topside support vessel and crew support.
| Liberty Missions Completed | 163 |
| Liberty Operational Hours | 13,933 |
| Estimated Offshore Personnel Hours Eliminated | 40,350 (Average Four-Person Crew) |
| Estimated Support Vessel Hours Eliminated | 10,087 (72.4% of Dive Hours) |
| Estimated Personnel Crew Changes Eliminated | 240 (12-Hour Shifts / 14-Day Trips) |
| Estimated Support Vessel CO2 Emissions Eliminated (Tons) | 19,158 (Average 33T per Liberty Dive Day) |
Remote Operations Enable Further CO2 Reductions
The Liberty™ Resident System eliminates the need for ROV and vessel personnel to travel to and from marine vessels and offshore platforms, which reduces work in high-risk environments.
Along with the reductions of offshore injuries and environmental incidents, remote operations can have a direct and positive impact on the offshore energy industry’s operations, such as reducing offshore personnel hours and generating cost savings from reduced vessel hours.
How Are Remote Operations Reducing CO2 Emissions?
The logistics of bringing workers to and from offshore installations can be complex.
Mobilization requires helicopter transport and vessels serving as floating hotels (floatels). By using a dedicated onshore control center that can communicate with staff stationed onshore, offshore travel and accommodations can be reduced, decreasing risk, and enabling greater collaboration and faster response times. Subject matter experts can monitor operations at several installations instead of one. Onshore Remote Operation Centers (OROCs) are staffed 24/7 to ensure operational support.
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Oceaneering’s self-contained, battery-powered work class Liberty™️️ Resident System delivers CO2 emissions savings versus conventional ROVs. Learn how the Liberty system and remote operations can improve the environmental performance of your offshore operations.
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