Long-distance grid connections are technically viable and can reduce the need for storage. The biggest problem in the US is the very slow and uncertain process

Long-distance grid connections are technically viable and can reduce the need for storage. The biggest problem in the US is the very slow and uncertain process of getting state-by-state approval for interstate transmission projects. A Florida-California transmission project would need approval from at least 8 states. The proposed Grain Belt Express transmission project goes through only 3 states and received its first approval (in Kansas) 7 years ago. It is still trying to get the necessary approvals in Missouri. Due to this drawn-out process in Missouri, opponents in Illinois were able to reverse the project's earlier-obtained Certificate of Public Convenience and Necessity. Even if Missouri gets on board the project will have to re-obtain approval in Illinois, and perhaps by the time that's over Kansans will have new objections.