Construction of a new 345/34.5kV Substation
Scope included initial site preparation, foundations, site fencing, station grounding, control and power conduit and cables, steel structures, HV and LV electrical equipment (transformer, breakers, switches, capacitors and disconnects) control building with SEL Relay Panels, rigid bus and jumper overhead system and all testing and commissioning services.
Construction new 12 kV Switchgear Building including switchgear, cable vaults, incoming PG&E, manholes, interrupter switch, 12 kV loop feeder distribution control system and campus power monitoring system.
Building incoming low voltage service feeders, switchboards and power meters. Includes connecting the power meters to the local building IDF for connection to the new campus power monitoring system. Underground PG&E infrastructure between Cedar and Chestnut Avenues located on the North side of Barstow Avenue as part of the PG&E Rule 20 design project to underground the existing overhead 12kV pole line as part of a street widening project to add a bicycle lane in the future.
The design includes equipment pads on grade for transformers and capacitors. Created and implemented traffic and pedestrian control plans. Work was performed with the campus remaining operational and active.
The Project consists of furnishing labor and material necessary to remove the existing 12kV main electrical substation on the campus of San Francisco State University in San Francisco, California, and to replace it with a new 12kV main electrical substation, including, but not limited to, performing all necessary site work at the substation site, including construction of concrete slabs, housekeeping pads, sidewalks, fencing and roof structure, sequencing construction and providing temporary power arrangements to maintain electrical service during construction, coordinating with PG&E for cutover of electric metering and service cables to new substation, replacing sections of 12kV feeder cables, replacing 12kV taped splices with modular separable connectors, providing grounding system additions in electrical manholes and modifying the campus power monitoring system and related systems.
Construction of 12kV Switch Station, at the University of California, San Diego, complete with concrete building, MV switchgear, underground ductbank, MV cables, SCADA system, telecom, mechanical, fire alarm, reclaimed water irrigation system, etc., while maintain a fully-operational campus.
Construction included a new 3,200 square foot Architectural Switch Station located in the middle of the UCSD campus. The new Switch Station was used for power distribution and used as the design for future Switch Stations. Ryan Co. installed new switchgear lineup including PT’s, CPT’s, multiple-phase switches, and a quantity of 15 – 40KAIC Vacuum Breakers, as well as spare spaces for future breakers, new feeder circuits, transferred existing feeders from existing vault to the new switch station. Ryan Co. provided coordination for UCSD regarding schedule for outages to prevent any loss of power around the campus or nearby Veteran’s Affairs Hospital. Project also included rebuilding of existing bays in active switchgears to replace breakers with the new 40KAIC breakers in two other substations on campus. Traffic control and safety measures to ensure the safety of the high volume of student pedestrians and vehicles around 30-foot deep ductbank.
The ConEdison Development Portfolio represents a combined 150MW at six different locations in the Central Valley of California. Some 1000 acres will have been converted into solar photovoltaic facilities by final commissioning in Q4 of 2016.
As the EPC of record for these projects, The Ryan Company oversees the full engineering and construction of the system including: engineering and construction of the entire system including procurement of electrical equipment, structural supports and preparation of the site, including management of all project grading and trenching. Ryan also installed the support structures, module racking system, modules, inverters, DC wiring, power cables with the associated collection equipment, and all electrical systems for the entire project involving module connections and inverter installation. The Ryan team designed and optimized the project processes, installation and the 34.5-11.5kV substation interconnection.
Project List of ConEd Central Valley PV Portfolio
Equipment (illustrative):
The Work includes, but is not limited to, the following items:
