Floating offshore wind (FOSW) is a promising alternative energy technology with a potential U.S. market worth nearly $16 billion by 2029 – but science and technology solutions are needed to help reduce the cost of developing, deploying, and maintaining these complex systems. With funding support from the California Energy Commission, a team of our scientists are developing advanced distributed sensing and structural modeling technologies for FOSW structures. This would allow scientists to monitor and assess structural operations and damaging conditions that could lead to costly repairs. Sensing technologies will also monitor potential environmental impacts, such as effects on marine mammals. We work with experts in materials science, engineering, geophysics, and FOSW developers to design structures that are more resilient to harsh marine environments, and promote environmental and economic sustainability.