IEEE Electrification - June 2019 - 8

TECHNOLOGY LEADERS

from rubber with inlaid steel reinforcement, which lies over a channel
cast in the dock.

Zero-Emissions Yard Tractors
ITS will work with BYD to deploy
seven all-electric yard tractors. The
LBCT will deploy an additional five
battery-electric yard tractors, for a
total of 12 units in the demonstration. Two yard tractors will be compatible with an automated "smart"
yard tractor charging system to test
the fast, large-scale charging system
needed to transition the fleet to
zero emissions.
Figure 4. Diesel-powered RTG cranes at Pier J at the POLB. Cranes like these will be retrofitted to run on electricity. These will stack and sort cargo in the container yard.

economy, and improving public
health and the environment. Under
the workforce development component, the Port will share lessons
learned with Long Beach City College
(LBCC) and the Long Beach Unified
School District and support related
education and workforce programs
with school districts and community
colleges in Oakland and Stockton.
The project is due to be completed
by June 2021.

Zero-Emissions Terminal
Equipment Transition Project
With a US$9.7 million grant from the
CEC, this US$13.7 million project involves 25 pieces of new and repowered off-road cargo-handling
equipment and trucks. The total includes nine e-RTGs being repowered
at Pier J and four liquefied natural gas
(LNG) fuel drayage trucks equipped
with plug-in hybrid technology. The
project represents the nation's largest demonstration and deployment
of zero-emissions cargo-handling
equipment at a single port.
The Port is partnering with three
terminal operators to test the equipment: International Transportation
Service (ITS) at Pier G, Long Beach
Container Terminal (LBCT) at Middle
Harbor, and Pacific Container Terminal

I E E E E l e c t r i f i cati o n M agaz ine / J UN E 2019

Zero-Emissions Hybrid-Electric
Trucks

(operated by SSA Marine) at Pier J.
Other partners include drayage
trucking company Total Transportation Services, Inc. (TTSI); OEM partners and technology vendors Cavotec,
BYD, and U.S. Hybrid Corporation;
and SCE and natural gas provider
Clean Energy Fuels Corporation.

TTSI will work with US Hybrid to
repower four underpowered 9-L Class 8
drayage LNG trucks. US Hybrid will
convert the underutilized trucks to
plug-in hybrid electric and use geofencing to operate in zero-emissions mode
within the Port. Those same trucks will
still be able to run on natural gas, with
extended-range LNG capability.

Zero-Emissions RTG Cranes

Zero-Emissions Infrastructure

SSA Marine is working with Cavotec
to repower nine existing ZPMC diesel-electric RTGs-the nation's largest deployment of fully electric
RTGs-by replacing their onboard
diesel engines with a grid-connected
electric conversion system and a battery package that enable disconnection from the grid and blocks
changing during normal operations.
(Figure 4). While grid-connecting
equipment is not new, Cavotec provides an innovative motorized cable
management system that ensures
reliable delivery of power, data, and
communications. By locating the
feed point for the cable in the center
of the container block, the technology allows the e-RTG to move in both
directions from the feed point. The
cable reels are located underground
in Cavotec's Panzerbelt, a cable protection system incorporating a continuous semiflexible belt fabricated

SCE will work with the Port to complete
approximately US$3.45 million in infrastructure upgrades to provide power to
24 charging points for the electric yard
tractors and electrical infrastructure
that support the e-RTGs. SCE is building the infrastructure for the charging
points (with a total load of 5 MVA) on
the west side of Pier G, with service
from a local SCE substation. Features
include two pad-mounted switches,
one pad-mounted capacitor bank, and
two 2,500-kVA transformers (12-
480 kV) as well as a meter cabinet, conductor, and six slab boxes.
SCE is also designing, installing,
and maintaining the electric infrastructure for powering the e-RTGs. Its
infrastructure will include a new
12-kV circuit in an existing wharf
substation, a new pad to house 12-kV
switchgear, a new four-way remoteactuated gas switch, a vault upgrade,
and three new meters. SCE will

IEEE Electrification - June 2019

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