In the race toward a greener future, one of the biggest obstacles we still face is getting clean energy where and when it’s needed most. Now, an ambitious project is setting out to solve exactly that. Engineers and policymakers are working on what could become one of the most transformative pieces of energy infrastructure in modern history: a transatlantic power cable linking Europe and North America. The goal? To make renewable energy not just cleaner—but smarter, steadier, and far more reliable.