San Diego Gas & Electric on Friday announced plans to build, own and operate a new transmission line that would run about 100 to 150 miles, going between an existing substation in Imperial Valley to the San Diego-Orange County border.

SDG&E would need to acquire the necessary permitting from state and federal bodies, including the California Public Utilities Commission, to proceed.

The project does not yet have a price tag, so it’s not known how much it would increase the monthly bills paid by SDG&E customers — should it clear all the regulatory hurdles.

SDG&E officials have dubbed the 500-kilovolt line the Golden Pacific Powerlink and say the project would boost transmission capacity across the region, thus reducing costs associated with congestion on electric power lines.

The prop

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