A Short History of the Pacific HVDC Intertie

The development of the Pacific HVDC Intertie (PDCI) is traced from inception in the 1960s to present day. The PDCI has undergone a number of changes and upgrades over the 36 years since its construction. The changes in the PDCI mirror the advances in HVDC technology and renovated the southern converter station at Sylmar completely replacing nearly all of the converter equipment with modern high power converters over that period