This report investigates the technical, economic, and policy-driven barriers currently hindering the rapid global deployment of offshore wind, tidal, and wave energy technologies. The International Energy Agency (IEA) utilizes its extensive database of global energy trends and policy frameworks to evaluate the current state of marine-based renewables. The text argues that while these technologies are technically viable, their widespread adoption requires coordinated international policy, significant infrastructure investment, and streamlined regulatory processes to achieve net-zero targets.

Experts and policymakers regard this report as a foundational technical document for understanding the current limitations and potential of the offshore energy sector. The text is noted for its high density of data and its objective, analytical approach to complex infrastructure challenges.