Texas-based Zentech Inc. and Virginia-based Renewables Resources International (RRI) have announced their plans to build what they call the first Jones Act-compliant, four-legged, self-propelled, dynamically positioned level 2 (DP2) jack-up vessel based on a U.S.-built barge.
Zentech plans to install four truss legs with spud cans – a proven oil and gas design – integrated in a newly built hull.
According to the companies, the vessel will provide the evolving U.S. offshore wind industry with a much needed and cost-competitive marine logistic solution, converting a Jones Act-compliant asset aligned with the conclusions from the European offshore wind learning curve. When not in service for installing and/or maintaining wind turbines, the vessel will act as an oil and gas crane jack-up for decommissioning in 300-foot water depths.
The Jones Act vessel, designed to navigate the New Bedford Hurricane Protection Barrier (located about 50 miles south of Boston), will carry and install components for at least three complete 6 MW-9 MW wind turbines. The vessel’s jacking system will be rated at a capacity of 16,000 tons.
“With larger-scale offshore wind projects following Block Island, the U.S. market requires forward-looking marine logistics, such as Zentech’s competitive, Jones Act-compliant jack-up installation vessel,” says Andy Geissbuehler, managing partner of RRI. “U.S.-made, domestically accessible and designed in concert with the advanced European offshore wind industry, this vessel conversion is another example of the important role the U.S. oil and gas industry will play in accelerating the U.S. offshore wind industry.”
“The deployment of a U.S.-flagged vessel is a positive sign and a step in the right direction for the offshore wind industry in the U.S.,” says Thomas Brostrøm, president of DONG Energy North America. “This will help in the creation of a sustainable supply chain that includes several suppliers, and we welcome initiatives such as this from serious market players in the industry.”
The companies say they have been in discussions with U.S. shipyards in the Gulf and along the East Coast and expect delivery of the vessel to take place no later than the fourth quarter of 2018.