ENSIS foundation installation vessels have heavy duty tank crane, high lifting capacity, extended reach and lifting height (source: GustoMSC)
June 21, 2022by David Foxwell
GustoMSC, owned by NOV, has unveiled a new class of foundation installation vessels for the offshore wind market
The ENSIS family of designs is GustoMSC’s response to the growth in size and weight of monopiles and jackets, and the industry’s need for more efficient vessels. As recently pointed out OWJmore ships are also needed to keep pace with the rapid growth of the offshore wind market.
ENSIS is a series of scalable and fully customizable designs with next-generation crane and deck equipment developed by other companies in NOV’s Marine and Construction business unit.
The powerful workhorses are designed with a heavy duty tub crane, high lifting capacity, extended reach and lifting height, reinforced by the optimized crane position. All designs offer a flexible deck layout providing ample space for monopiles, vests, deck mission equipment and additional ancillary equipment.
The ENSIS 5000 design is the largest and most capable of the series. At 200m length with 55m and 9500m beam2 of deck space, the vessel has a heavy lifting crane with a capacity of 5,000 tons. The lifting capacity of the crane and its lifting height also reflect the lifting and installation requirements of XXL and XXXL monopiles and jackets.
The vessel is designed around a top hinge combined with a motion compensated clamp that allows the ENSIS 5000 to take up to six XXXL monopiles in a single trip, a capacity that exceeds that of vessels already on the market. The vessels draft is optimized to operate from common yards and a collapsible A-frame enables worldwide mobilization. The vessel uses the latest energy saving, regenerative and storage solutions and can use new or alternative fuels if required.
The ENSIS 3000 and ENSIS 4000 designs are based on the same principles but are developed to meet particular challenges. The ENSIS 3000 is a compact design that can efficiently install smaller monopiles, pin piles or suction anchors; the ENSIS 4000 offers opportunities for the evolving US market and Jones Act compliant vessels.