Reduction in emissions from vessels and machinery at sea

  • Design-Build Contracts
  • Emissions from the Construction Site


Requirements and Criteria Type: 
  • Technical Specification (Requirement Specifications)

Main Objective: 

Construction activities associated with the remediation of shipping lanes and maintenance of installations at sea contribute to the emission of greenhouse gases, sulphur and NOx.

By setting requirements for construction machinery and vessels travelling to and from, as well as at the construction site, we can contribute to the reduction of the emission of NOx and particles.

Requirement Specification: 

Marine fuel used in machinery and vessels at sea must be replaced with construction diesel/autodiesel (ADO).

Documentation of the Requirement Specification: 

Monthly reporting of fuel consumption. The contractor must, upon request from the client, be able to present receipts for the purchase of fuels in the project.

Information about the Requirement Specification: 

Marine gas oil (MGO) has a sulphur content of up to 1,000 ppm, whereas construction diesel has a maximum sulphur content of 10 ppm. Construction diesel is more expensive than MGO but fuel replacement will have a major impact on air pollution.

The market for construction work at sea is limited. If you desire fossil-free machinery, we recommend entering into dialogue with the market to investigate whether this is something the contractors are able to deliver. There are few sea contractors and equipment predominantly uses older motor technologies. If the market is not yet mature enough to deliver fossil-free alternatives, you could consider setting these requirements as contractual conditions. This gives the contractor time to obtain fossil-free machinery and vessels for the execution of the contract. You could ask contractors, when submitting bids, to answer whether or not various fossil-free vessels and equipment will be in place at the time of entering into the contract and set a deadline for when these must be in place (e.g. <X> months after entering into the contract). 

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Published: 25. Nov 2020, Last modified: 26. Nov 2020