All-electric, Turn-key Solution for Geotechnical Seabed Surveys

• All-electric, turn-key solution for geotechnical seabed surveys.
• Developed to meet strict offshore classification requirements due to harsh weather conditions.
• Aimed at reducing CO2 emissions and meeting growing environmental demands.
• Features Active Heave Compensated (AHC) winches and platform, powered by a DC-battery system.
• The system compensates for ship movements on waves, reducing energy consumption by storing and regenerating kinetic energy.

Active Heave Compensation (AHC):

• Ensures equipment remains stable relative to the seabed during waves.
• Maximizes operational days, allowing work to continue under challenging wave conditions.
• Uses accelerometers to measure and counteract wave-induced movements.

 

Energy Optimization and CO2 Reduction:

Regenerates energy during wave compensation, saving up to 60% of typically wasted energy. Combined with not using diesel, this makes for a significant CO2 reduction:

• Total energy consumption: 43.2 million kJ/day.
• Saves 1100 kg of diesel per day.
• Reduces CO2 emissions by 3.3 tonnes/day.
• Annual CO2 reduction: 660 tonnes (for 200 days/year).

Safety Advantages:

• Operates during power outages, reducing risks of equipment damage.
• No hydraulic oil, eliminating the risk of oil spills in marine environments.

 

Electrical Noise Reduction:

• Reduces electrical noise on the ship’s distribution system.
• Quieter than conventional hydraulic equipment, enhancing the work environment.

 

Conclusion:

• The system improves offshore installation efficiency, safety, and environmental sustainability.
• Offers economic and environmental benefits, including CO2 reduction, energy savings, and enhanced operational safety.