▲ 44 r/Powerlines
HV & EHV Power Infrastructure Megapost
An assortment of various transmission lines and substations around Arizona. 500kV, 345kV, 230kV, 138kV, and also a 69kV underbuilt into the 230kV line.
u/iAmMikeJ_92 — 2 days ago
▲ 22 r/Powerlines
Tucson Electric Power 345kV & 138kV
The corridor that follows Interstate 10 West in a northwesterly direction that eventually leads to the Vail Substation. The substation is a receiving end of the two 345kV transmission lines that were originally established for the Tucson load pocket back around the '70s. The 138kV lines serve as the regional HV grid that ties together all distribution infrastructure all around Tucson.
u/iAmMikeJ_92 — 4 days ago
▲ 50 r/Powerlines
500kV, 161kV & 92kV Transmission
Found along Interstate 8 at the Imperial Sand Dunes
San Diego Gas & Electric owns and operates this segment, among other segments, of The Southwest Powerlink, which is a series of 500kV lines that connect the San Diego load pocket to sources at the Palo Verde Nuclear Generating Station hub west of Phoenix, AZ.
You will also see some smaller lines. Those are 161kV, 92kV, and I believe the smallest ones are 34.5 kV, all owned and operated by Imperial Irrigation District.
Note the cool transposition structure on the 500kV line.
u/iAmMikeJ_92 — 2 months ago