New electric cable installed between Petersburg, Wrangell
A barge and support boats work on cable installation near Woronkofski Island in July. (Photo courtesy of Trey Acteson/Southeast Alaska Power Agency)
Companies installed a new underwater electrical transmission line between Wrangell and Petersburg in July. Some work remains before that new power line is supplying electricity to Petersburg. And it’s not yet clear what broke the old cable.
The new three and a half miles of transmission line replaces a section of the Southeast power grid that failed in September of 2019. It’s between Vank and Woronkofski islands, near Wrangell and crosses a section of the Stikine Strait that gets as deep as 700 feet.
New underwater power line to be installed in July
Posted by Joe Viechnicki | May 20, 2021
The Southeast Alaska Power Agency participated in transmission line testing by videoconference with the manufacturer in Japan (Photo from the Southeast Alaska Power Agency)
A wholesale electrical power provider in Southeast Alaska says replacement of a failed underwater transmission line between Wrangell and Petersburg will happen in July.
The Southeast Alaska Power Agency, or SEAPA has contracted to replace the submarine cable that failed in September of 2019. Japanese company Sumitomo has finished manufacturing and testing the cable and its ready for shipment.
SEAPA CEO Trey Acteson told the Petersburg borough assembly Monday the replacement weighs about a million pounds.