Alpaca provided design for the 13.8 kV electrical distribution for the site, including service to the ship off-loading gantries, which required 1.7 mW of power each. There were several power distribution centers for supply to the refrigeration containers. The design for power for the support buildings involved 13.8 kV feeders to local 480v pad mounted transformers. The site lighting used 100-foot-high mast poles with multi-fixture light structures at the top. The poles included a lowering mechanism to facilitate lamp service. In the additional services
portion of our work, Alpaca, along with our sub-consultant, provided
the design of a 3.6 mile 138 kV transmission line and an electrical
substation containing main service switchgear and power center buildings.
The transmission line is routed through environmentally sensitive
shore areas and includes high-visibility warning devices to assist
shore birds in collision avoidance. The substation will initially
have two nominal 26 mW transformers supplying power to the yard.
The power center building will house the switchgear to distribute
the 13.8 kV circuits for the electric dredge, ship cranes, yard
equipment, support buildings, and site lighting. The substation
was designed to accommodate the full build-out capacity of approximately
95 mW, to be supported with three additional 26 mW transformers
and an additional power center building. |
This new container port terminal is to be constructed on an 800-acre peninsula in Galveston Bay. The first phase will cover approximately 200 acres with a 3.5 mile access road, wharf, storage yard, and support buildings.
Alpaca was responsible for the design of the electric service distribution for the yard equipment and buildings. Overall yard illumination was included in the design using high mast lighting.
When the local electric utility declined to design the main electric distribution to the project, Alpaca was engaged to include that design in our scope of work.