TRANSMISSION & DISTRIBUTION
INFRASTRUCTURE ENGINEERING
Strengthening grid resilience, safety, and performance through
utility-first engineering, field intelligence, and disciplined execution.
Zicali delivers transmission and distribution engineering grounded in constructability, system reliability, and field execution. We support utilities across planning, design, and delivery of infrastructure upgrades that improve safety, resiliency, and long-term performance.
Service Capabilities
Wildfire / Storm Hardening
- Rebuilding key feeder circuits – Line Design
- Reconductor, utilizing both bare and covered conductor
- Installation of smart technology equipment, including SCADA
- Structural analysis utilizing PLS-CADD
- Material ordering
- Foundation analysis
- Volt drop and flicker
Distribution Grid Upgrades
- Working with utility distribution engineering to plan and execute key grid upgrade projects
- New circuit gateways
- Reconductor to meet new ampacity requirements and load demand
- Wire safety enhancements
- Battery storage interconnections
Strategic Undergrounding (12kV)
- Large undergounding project taking overhead distribution feeder circuits in the high fire threat districts and undergrounding most, if not all, of the circuits
- Manage requirements of numerous agencies as well as homeowners
Pole Loading & Structural Compliance
- Large volume pole loading program that covers numerous work types
- Manage and facilitate the execution of pole loading calculations to adhere to PUC requirements for a proper audit of pole and system health
Transmission Vegetation Management
- Model 155kV to 230kV transmission lines
- Utilize PLS-CADD Batch Thermal Calculator to obtain accurate wire tensions
- Perform blowout and fall in analysis to find key spans requiring high, medium, and low priority vegetation trimming