Not only is it viable, but it's already happening. On a domestic level, countries like Germany have legislation that targets accelerating internal grid connect

Not only is it viable, but it's already happening. On a domestic level, countries like Germany have legislation that targets accelerating internal grid connections. https://de.m.wikipedia.org/wiki/Netzausbaubeschleunigungsgesetz_%C3%9Cbertragungsnetz https://de.m.wikipedia.org/wiki/Netzausbaubeschleunigungsges... On a supranational level in Europe, the EU has targets to increase grid interconnections between countries. https://ec.europa.eu/energy/topics/infrastructure/electricity-interconnection-targets_en https://ec.europa.eu/energy/topics/infrastructure/electricit... On an intergovernmental level, outside of the EU the UK is building an underwater cable to Denmark, to share hydro and wind energy. https://www.theguardian.com/environment/2020/jul/13/work-begins-in-lincolnshire-on-worlds-longest-subsea-power-cable-viking-link https://www.theguardian.com/environment/2020/jul/13/work-beg...