People's Finance News on March 21st reported that according to Southern Power Grid, on March 20th, the Southern Power Grid 220kV Weizhou Island cross-sea interconnection project was successfully put into operation. As the first 220kV cross-sea interconnection project in the Beibu Gulf, this undersea energy arterial line with a total length of 44.8 kilometers has completely ended Weizhou Island's history of "isolated network operation" in Beihai, Guangxi, achieving cross-sea connection with the Southern Power Grid main network, injecting strong momentum into the island's livelihood protection, cultural tourism upgrading, and maritime economic development.