We provide unparalleled
service from commencement
to commissioning.

 

2002

 

2000

 ​

69/12.47kV & 115kV/12.47kV Substation Upgrades, Yellowstone Valley Electric Cooperative, Billings, MT

 

 

Rodeo Creek Substation, Carlin Resources, Elko, NV
Hollister Main Substation, Carlin Resources, Elko NV

Irvington 138kV/46kV Switchyard, Relay Relocation, & Upgrade, Tucson Electric Power, Tucson, AZ

 

2015

 .

2013

 

2009

 

2001

 

Tower Road Switchyard, Umatilla Electric Cooperative, Hermiston, OR
Hermiston Butte Substation, Umatilla Electric Cooperative, Hermiston, OR

 

Green Valley 138kV Line Terminal for Canoa Ranch, Tucson Electric Power, Tucson, AZ        
Jim Bridger Power Plant, J-Box Replacement in Coal Crusher Building, PacifiCorp, Rock Spring, WY

 

RDL Engineering, LLC 2015

2011—2012

 

2014

 

Open-End Stations, Lower Colorado River Authority, Austin, TX
Clear Springs 345kV Switchyard, Lower Colorado River Authority, Austin, TX
Garfield 345kV Switchyard, Lower Colorado River Authority, Austin, TX

 

 

 

​2008

 

Canoa Ranch 138kV Substation, Tucson Electric Power, Green Valley, AZ
Sundt Generating Station, Units #1 & #2 Relay Upgrade, Tucson Electric Power, Tucson, AZ
Sundt Generating Station, Unit #1 & #2 5kV Switchgear Relay Upgrade, Tucson Electric Power, Tucson, AZ

 

2003—2007

 

 Boriana Substation, Unisource Energy Services, Golden, AZ            
​EHV Breaker Replacement, Tucson Electric Power, Gallup, NM

 

2010

 

Sierrita 30 MVA / 138kV-7200V Transformer Addition, Freeport-McMoran, Green Valley, AZ
Archer Substation, Denbury Resources, Harris County, TX

 

 

Aldrich Substation, Northern States Power, Minneapolis, MN
Park Falls Substation, Northern States Power, Minneapolis, MN



 

 

 

We manage multi-million dollar
turnkey & upgrading
projects.

Roberts Bills-Wilmot Substation Free Standing Capacitor Breaker Addition, Tucson Electric Power, Tucson, AZ
Northeast Substation Transformer T1 Relay Upgrade, Tucson Electric Power, Tucson, AZ

Westwing Substation 345kV Circuit Switcher Replacement, Tucson Electric Power, Tucson, AZ

Northeast Substation 46kV Breaker Replacement,Tucson Electric Power, Tucson, AZ

Black Mesa Breaker & Relay Replacement, Unisource Energy, Mohave County, AZ

University of Arizona AHSC Gas-Insulated Switchgear Intertie,Tucson Electric Power, Tucson, AZ

East Loop—Roberts 138kV Line Relay Upgrade,Tucson Electric Power, Tucson, AZ