1. Introduction
Some of the research and development (R&D) suggests methods for reducing the costs to develop, construct, and operate offshore wind energy projects, including those that would be necessary to compete in a carbon-constrained electricity generation future. Many conclusions drawn from NREL’s past R&D continue to hold today. For example, measurement campaigns to validate and calibrate the performance model are a necessary component of a wind resource assessment study. One conclusion that has evolved is that both the wind industry and the oil and gas industry using the same offshore areas enhances operational and exploratory drilling cost reductions. However, offshore drilling activities in the OCS area of Virginia and North Carolina have shown that conventional gas deposits cannot be accessed from the same drilling rig used in deep-water drilling. Increased project permitting costs and process efficiencies continue to be an issue for both leasing and development of offshore wind energy projects. The continued challenges in obtaining financing for early stage offshore wind energy projects is manifest in the current portfolio setting and means the progress in other areas, such as technology transfer and resource management, is muted.
The modern offshore wind industry is little more than a decade old, but staff at the National Renewable Energy Laboratory (NREL) already have nearly two decades of experience in the design and deployment of offshore meteorological and wind resource assessment technology. NREL formed the Offshore Wind Energy Resource Assessment Advisory Team in 2001 to raise awareness for the need for offshore wind energy resource assessment, provide leadership in assessing the technical progress that has been made over the past several years, and identify the limitations of the technology that can potentially affect the economic viability of offshore wind energy projects.