This article investigates the Caspian–European Union Green Energy Corridor, a strategic initiative to bolster energy security and diversification in a tense geopolitical climate. The corridor hinges on large-scale renewable energy projects, like the Black Sea and Caspian Sea Electricity Cables, facilitating green energy exports from Azerbaijan, Kazakhstan, and Uzbekistan to Europe. These projects showcase the Caspian region’s potential to contribute to global sustainability through wind, solar, and hydropower resources. However, substantial challenges, including geopolitical instability, technical hurdles, and significant investment needs, threaten the initiative’s success. This article explores the current status, potential for, and obstacles to the Caspian Green Energy Corridor.