The Development of a Global Maritime Emissions Inventory Using Electronic Monitoring and Reporting Techniques

Dale Neef PhD - Managing Director - DNA Maritime LLC

Abstract

Emissions from maritime shipping are a significant source of airborne pollution. Recent
studies have estimated that ocean-going ships produce at least 15% of the world's NOx,
between 3%-6% of greenhouse gasses, and between 3%-7% of global SOx output.
Many partial maritime emissions inventories have been compiled in the last decade using
both fuel-based and energy-based survey methods, but without accurate data on load
factor, engine speed, and fuel type – data that must be taken directly from the ship’s
onboard systems – these surveys remain as high-level estimates; not precise enough to
use as a basis for assigning emissions credits in an emissions cap-and-trade mechanism.
The Port Emissions Reduction Credit Scheme (PERCS) is the first comprehensive
program that can provide the maritime shipping community with a mechanism for
creating a global ship emissions inventory by ship type and size.
Based on data captured electronically from a ship's onboard navigation/control, fuel,
and emissions monitoring systems, emissions performance information will be sent
electronically to the PERCS database. Data will be collected automatically and
electronically from ships anywhere, and at any time, and will provide a more complete
and accurate snapshot of current emissions output in coastal routes, in ports, or in open
seas around the world.
This emissions data will then be used both to “norm” performance expectations at an
industry-level, and also to calculate emissions allowances at a company level – both
necessary steps before the maritime industry can participate in wider emissions cap-andtrade
schemes.

Complete Paper can be found at -

http://www.qcs-facts.com/resource/TheDevelopmentofaGlobalMaritimeEmission.pdf