The offshore wind energy market continues to march ahead, as 2015 represented a record year of activity with over 3.7 GW brought online. Preliminary confirmed project commissioning in all global markets shows that offshore wind reached nearly 12 GW of cumulative capacity by the end of 2015, up from 995 MW installed globally in 2014. Over 65% of the annual capacity was installed in Germany, where a large number of wind turbines installed in 2014 were fully energized and grid-connected in 2015. Other key markets, such as the United Kingdom, the Netherlands, and China, contributed capacity as well. The major market driver globally for offshore wind energy is the demand for clean and diversified energy sources from an increasing number of governments. This driver is especially significant for the energy markets that are located near areas of strong offshore wind potential, particularly the North Sea and Baltic Sea in Europe. Potential is also ripe along the northeastern seaboard of the United States. Leading countries in Europe are transitioning to more market-oriented policies that track and fluctuate alongside broader market rates. Such activities are reducing the cost of offshore wind projects to ratepayers, taxpayers, and other stakeholders and thus ensuring a sustainable offshore wind market. This Navigant Research report provides global and country-level analyses of the major offshore wind power markets. The study includes assessments of key policies, incentives, and regulatory and permitting environments, plus an overview of wind project construction and advanced development underway. Global market forecasts for offshore wind power capacity, segmented by project status and country, extend through 2020. Turbine vendor data is provided, including overall global market shares and more granular installed capacity by country and by wind turbine vendor. Also detailed are average rotor diameters and turbine nameplate ratings by installed year, along with the shifting market share diversification of offshore foundation types.