Port of Oakland | SS-R-10 Switchgear Replacement 

Owner: Port of Oakland
Project Duration: 2022-2024

Kewo Engineering provided engineering services for the Port of Oakland ‘s Switchgear Replacement project with new Solar PV and BESS installations. This work included assessment of various operating scenarios involving a 3MW/12MWh BESS and a 2.7MW-DC/2.4MW-AC PV system, including grid-forming, islanding, and BESS charging and discharging operations. 

Kewo Engineering was responsible for providing the following: 

• System Capacity Evaluations 
  • Performed system capacity evaluation for new SS-R-10 (Army) switchgear and its feeders 
  • Ensured compatibility with the Port’s current and future power requirements 
  • Evaluated capacity for new renewable projects 
• Renewable Resource Systems 
  • Evaluated the integration of new Solar PV and BESS 
  • Analyzed grid-connected and islanding scenarios for BESS 
• Performed a short circuit, coordination, and arc flash study for new SS-R-10 (Army) and renewable projects. 
  • Evaluated interrupting capacity of equipment including medium-voltage switchgear, low-voltage switchboards, and associated circuit breakers. 
  • Performed relay coordination analysis and provided settings recommendations for overcurrent and differential relays. 
  • Conducted arc flash studies for MV switchgear main and feeders and downstream LV switchboards.