Retrofit & Conversion
Engineering for BWTS and scrubber installation on existing vessels — vessel inspections, 3D laser scanning, detailed design drawings, class approval, and installation assistance.
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At Green Ship Technologies, we are a leading provider of specialized marine retrofit and conversion services. Our expertise lies in transforming existing vessels to adapt to new purposes, comply with regulatory requirements, and enhance performance and efficiency.
BWTS Installation Engineering
BWTS Installation Engineering refers to the integration of a BWTS into the vessel's existing ballast water management infrastructure. At Green Ship Technologies we perform the installation of BWTS on ships that were not originally equipped with the system — essential for compliance with the BWM Convention D-2 standard, monitoring that the species in the discharged water are within the admissible limits. Our team comprises skilled Naval Architects, Marine Engineers, 3D Scanning Experts, Design Software Specialists, Piping, and Electrical Engineers.

Vessel Inspections for Feasibility of Installations
Before proceeding with the installation of a BWTS, it's crucial to inspect the vessel to determine its suitability and feasibility for the installation. This involves assessing the existing ballast water management infrastructure and identifying any necessary modifications or adjustments.

3D Laser Scanning
Utilizing advanced technology such as 3D laser scanning helps in capturing detailed and accurate measurements of the vessel's spaces where the BWTS will be installed. This data is essential for the design and engineering phases.

Detailed Design and Engineering Drawings for Class Approval and Client Approval
Based on the information gathered from vessel inspections and 3D laser scanning, Green Ship Technologies creates detailed design and engineering drawings. These drawings are crucial for obtaining approval from classification societies (Class Approval) and ensuring client satisfaction (Client Approval).

Installation Assistance at Shipyard or in Ports
Green Ship Technologies provides support and assistance during the installation phase, either at the shipyard during construction or in ports for retrofitting existing vessels. This involves coordinating with shipyard workers, overseeing the installation process, and ensuring compliance with relevant regulations and standards.
Scrubber Installation Engineering
A ship scrubber, also known as an Exhaust Gas Cleaning System (EGCS), is an emissions control device that removes pollutants from the exhaust gas and reduces the amount emitted by ships, making them a more environmentally-friendly mode of transportation. We also represent renowned manufacturers of SOx scrubbers, providing high-quality solutions to meet emissions regulations and enhance environmental sustainability in maritime operations.

Vessel Feasibility Inspections
Conducting vessel inspections to assess the feasibility of installations.

3D Laser Scanning
Utilizing 3D laser scanning experts for precise data collection.

Design & Engineering Drawings
Creating detailed design and engineering drawings to obtain approvals from classification societies and clients.

Installation Assistance
Providing installation assistance either at shipyards or in ports to ensure successful implementation of scrubber systems.
Frequently Asked Questions
Common questions about retrofit & conversion
What is BWTS installation engineering for an existing vessel?
BWTS (Ballast Water Treatment System) installation engineering covers the full retrofit process — vessel feasibility inspection, 3D laser scanning of ballast spaces, detailed design and piping drawings, class approval submission, and installation supervision at the shipyard or in port.
What is the BWM Convention D-2 standard and who must comply?
The IMO Ballast Water Management (BWM) Convention D-2 standard limits the number of living organisms permitted in discharged ballast water. All ships in international trade must comply by fitting an approved BWTS by their IOPP renewal survey date.
What engineering is required for scrubber (EGCS) installation on a ship?
Scrubber installation requires vessel feasibility assessment, 3D laser scanning of the engine room, exhaust uptake route design, structural and weight calculations, class approval drawings, and installation supervision. Green Ship Technologies manages the complete engineering package.
How long does a BWTS retrofit project take?
Typical BWTS retrofit engineering takes 4-8 weeks from vessel inspection to class-approved drawings. Actual shipyard installation takes 1-3 weeks depending on the BWTS type and vessel size.
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