San Diego (SDGE) has a plan to bury most lines in the next 50 years. I feel like this would happen faster if they were not beholden to shareholders (NYSE:SRE). Distribution and the charges associated with it are government aided monopolies... Should a publicly traded company have a gov granted monopoly?
As far as I can find, SDGE is only burying their distribution lines. Their 1900 miles of transmission lines (which often cut through flammable wilderness areas) will remain above ground.
