www.sea-technology.com October 2015 / st 43
year, included performance evaluations of the METS on fve
separate vessels for a minimum of 200 hr. CARB approved
the system by Executive Order on June 26, 2015.
These are all signifcant developments for our global
shipping systems, which are blamed for more air-polluting
emissions than any other transportation segment. Just run
a quick online search, and you'll fnd seemingly endless
stats and statements such as: carbon dioxide emissions from
shipping were equal to 2.7 percent of the global human-
made emissions in 2007; ships burn tons of fuel per hour,
generating 3 to 4 percent or more of
human-generated global warming
gases—more than commercial avia-
tion; and the diesel engines at ports,
which power ships, trucks, trains and
cargo-handling equipment, create
vast amounts of air pollution that af-
fect the health of workers and people
living in nearby communities and
contribute signifcantly to regional
air pollution.
So, assuming we can all agree that
there's room to reduce our industry's
emissions and have a positive impact
on our industry and our communi-
ties, let's look at the options.
POLA
Some of the world's largest ports
have been working on this issue for
years. POLA, the largest in the U.S.
and easily among the top 10 in the world, has been a leader
in development of technologies to control at-berth emis-
sions for more than a decade. POLA pioneered develop-
ment of alternative maritime power (AMP) for cargo ships,
and today has 24 berths that are equipped for shore pow-
er—the most of any port in the world.
AMPing at berth eliminates upwards of a ton of NOx
emissions per vessel per 24-hr. period. We've seen simi-
lar results with the new METS alternative; that's a ton
of emissions reduced for every vessel every day one of
The METS pulls up next to a ship at berth in the POLA.
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