Construction Underway at EEW-AOS, Nation’s Largest Offshore Wind Manufacturing Facility, in Gloucester County, NJ

EEW-AOS Monopile Manufacturing Facility. Credit: The Harman GroupEEW-AOS Monopile Manufacturing Facility. Credit: The Harman Group

The ongoing development boom in the greater Philadelphia region is not limited to new buildings sprouting around the city, nor is it even constrained to the surrounding towns and suburbs within the metropolitan area. In a way, it extends well into the Atlantic Ocean, where massive wind farms are on the drawing boards off the coast of southern New Jersey. A major milestone for local renewable energy has just been reached, as construction is now underway at the Phase 1 of the EEW-AOS monopile manufacturing facility at the Port of Paulsboro Marine Terminal in Gloucester County, NJ, located on the Delaware River across from the Philadelphia International Airport. The facility, the largest of its kind in the United States, will be used to assemble monopiles, which are gargantuan cylindrical supports for wind turbines.

The development is the first foray into the United States for EEW-AOS, a Europe-based group with a project portfolio spanning the globe. The project team also includes Ruggieri & Partners as the architect, Orsted & Rycon Construction as the construction manager, and The Harman Group as the structural engineer for the concrete foundation.

Port of Paulsboro. Credit: Google Maps

Port of Paulsboro. Credit: Google Maps

An offshore wind farm. Credit: A monopile. Credit: EEW-AOS

An offshore wind farm. Credit: A monopile. Credit: EEW-AOS

While each firm involved with the project deserves their full share of credit, The Harman Group deserves a closer look at their involvement, at least from a construction-minded news outlet such as Philly YIMBY, due to the sheer complexity of the task at hand. Each of the monopiles will measure 400 feet in length, rising roughly 40 stories tall if put on their end. Even laid on their side, their 40-foot diameter rises as high as a four-story building, while their circumference is equivalent to a tunnel wide enough to handle two levels of multi-lane traffic. Each monopile will weigh 2,500 tons, or more than 5.5 million pounds. As such, the assembly platform, a concrete pad spanning much of the 70-acre site, must be capable of supporting these astoundingly large loads.

The Harman Group’s engineering solution comprises a supportive foundation system utilizing 9,250 cubic yards of concrete, which will prevent excessive settling of the soil. Jan Vacca, Principal and Vice President of The Harman Group, offers the following statement:

“The Harman Group has substantial knowledge of constructing and designing mat foundations, especially on demanding sites, which allows us to take on this engineering feat. We are proud to be a part of the team that is building offshore wind and clean energy, making New Jersey a leader in this category.”

The development also includes facilities such as the Circ. Weld Building, the Paint and Blast buildings, and more.

A monopile. Credit: EEW-AOS

A monopile. Credit: EEW-AOS

EEW-AOS Monopile Manufacturing Facility. Credit: The Harman Group

EEW-AOS Monopile Manufacturing Facility. Credit: The Harman Group

In terms of scale and weight, the monopiles are comparable to some of the world’s largest rocket assembly projects, and as such are far too large to be transported via conventional highways or freight rail. This is the reason for the facility’s portside location, where the assembled product will be loaded directly onto ocean-bound vessels.

This sort of development is exactly what greater Philadelphia needs, as it benefits scores of industries and provides thousands of skilled employment opportunities while contributing to generating clean energy for the region. The jobs created include those involved with the planning and construction of the facility, facility operations upon completion, marine shippers needed to deliver the monopiles to their offshore sites, groups contracted for the wind farm assembly, and full-time operators of the wind farms. Waterway delivery of the monopiles will ensure that no significant stress will be wrought onto the regional rail and highways.

Even the average resident in the region benefits from clean energy, as wind farms reduce dependency on coal- and gas-fired power plants, which have historically acted as significant contributors to air, water, and soil pollution.

Offshore monopile delivery. Credit: Offshoretronic

Offshore monopile delivery. Credit: Offshoretronic

The city of Philadelphia, one of the nation’s largest metropolises, grew in great part thanks to its mighty port network. In a recent article, we briefly traced the decline of the city’s old piers and the waterfront’s subsequent conversion to residential use. By contrast, developments such as the EEW-AOS facility ensure that the port continues to thrive as a crucible of local industry and an economic engine that steers the region forward, as it has for centuries.

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4 Comments on "Construction Underway at EEW-AOS, Nation’s Largest Offshore Wind Manufacturing Facility, in Gloucester County, NJ"

  1. Not sure what that has to do with building skyscrapers or other city-oriented development such as a highway or subway transit system.

  2. John L Hemphill | September 14, 2021 at 9:56 am | Reply

    This is interesting; it clearly means Philadelphia is leading the way in renewable energy which should be expected because Philadelphia has led the way in so many other things. There probably should be a blog or website on the innovation and infrastructural events regarding Philadelphia as well; its a cosmopolitan city so its wide ranging and this topic is a great reminder of that.

  3. Mark in Mount Airy | September 15, 2021 at 7:18 pm | Reply

    Just to recap, the State of New Jersey opposed the deepening of the Delaware River channel to 45′ so as to kneecap the Port of Philadelphia in it’s competition with Northern NJ ports. So the only bad news in this story is that the politicians in New Jersey were rewarded by the manufacturing facility being located in their state.

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