Astoria Energy Power Plant

Nab, in a joint venture, is currently constructing the Astoria Energy Turbine Building and Wind Wall. Our turnkey Design-Build contract calls for us to design, fabricate & erect not only the structure of the building, but also the mechanical, electrical and fire protection systems within. The Turbine Building is acoustically designed to limit the noise impact to the surrounding community from the combustion and steam turbines inside.

Con Ed East River Repowering Project

Nab recently completed construction as General Contractor for Con Ed’s 14th Street Power Plant alteration project. Major alterations included removal of concrete floor slab of multiple stories, masonry wall and structural steel at various locations providing space for new turbines and other equipment.
Nab Construction Corporation performed the field measurement, engineering calculation, detailing and new steel erection.

Brooklyn Navy Yard Cogeneration Facility

The Nab team solved major logistical challenges and placed a new 286 MW, $275 million cogeneration plant on line in one and one-half years from the start of construction.
Nab leased one of the largest cranes in the world, a Demag CC-4800, to erect the sixteen 64-foot-long, 290,000-pound HRSG boiler modules. The crane lift, 326,300 lbs. at a maximum radius of 200 feet, was the largest ever made at this radius in New York City.

Astoria Generating Station

After Con Ed converted its Astoria Station from coal to oil, Nab demolished and removed four precipitators and the steel used to support them, then installed new flues.
Logistics were complicated by the fact that vehicular access was restricted to a single road on one side of the site. Nab’s solution was to mount two stiff leg derricks on the roof of the adjacent boiler building to dismantle and remove the precipitators.