The purpose of this webinar is to look into the challenges for a large-scale expansion of renewable energy in the US and Europe. The US commitment to renewable energy increased from 2 GW in 2016 to 30 GW in 2030, and furthermore, it is estimated that in less than 10 years, the cost of offshore wind energy has decreased with a factor of three. However, moving to offshore wind energy requires rethinking the traditional energy grid, and system integration is widely recognized as one of the biggest challenges.