*** Certain confidential portions (indicated by brackets and asterisks) have been omitted from this exhibit because such information is both (i) non-material and (ii) would be competitively harmful if publicly disclosed.
One (1) 345-kV 3 Ph. High Switch Support structure
One (1) 34.5-kV 3 Ph. Metering CT Support structure
One (1) 34.5-kV 3 Ph. Switch Support structure
One (1) 34.5-kV Distribution Bay structure
Two (2) 34.5-kV 3 Ph. Feeder/U.G. Riser Supports structures
One (1) Shield Wire Pole
One (1) Control Building Enclosure
Junction Boxes for all secondary cabinets.
Rigid bus and hardware. All 345-kV rigid bus: 4-inch schedule 80 Aluminum tube with 795kcmil ACSR dampening wire. The 34.5-kV main rigid bus: 5-inch schedule 80 Aluminum tube with 795kcmil ACSR dampening wire. The 34.5-kV feeder rigid bus: 4-inch schedule 80 Aluminum tube with 795kcmil ACSR dampening wire.
Jumper conductors and hardware. 1590kcmil AAC installed for all series jumpers. Where EHV design is required, bundled 2/phase 1590 AAC welded jumpers will be installed. Where 4000A distribution level design is required, bundled 3/phase 1590 AAC bolted jumpers shall be installed. Where 2000A distribution level design is
required, bundled 2/phase 1590 AAC bolted jumpers shall be installed. Single 1/phase 2000kcmil AAC shall be installed for all EHV shunt jumper connections. Single 1/phase 477kcmil AAC shall be installed for all non-EHV shunt jumper connections.
Grounding system designed using IEEE 80 and per any requirements based on the soil resistivity.
Lightning protection design based on the IEEE Rolling Sphere Method utilizing the lightning spikes and overhead shield wires at the H-Frame dead-end structures as well as any freestanding masts and 3/8 EHS shield wire(s).
Substation yard raceway system design from the control enclosure to equipment utilizing cable trench with open bottom and removable covers. Final routes from trench to equipment to be schedule 40 PVC conduit direct buried below ground and liquid tight flexible metal conduit above ground.
Shielded cable for all cables run inside the substation and control building.
The switchyard station service consisting of two (2) 34.5/19.22-kV Station Service Transformers for primary and backup station power. The primary source will be fed from Transformer #1 low-side. The backup source will be fed from the local utility distribution brought into the proximity of the substation for continuation from the safety disconnect switch.
Yard lighting: LED fixtures with AC supply via control enclosure AC panel.
Control Enclosure
Control enclosure: complete with foundation, structural, HVAC, lighting, electrical, grounding,
cable trays, and also including the following major components:
GREENFIELD CIPHER INTERCONNECTION ELECTRIC FACILITIES:
125VDC independent DC system including 150 amp-hour (60 cell) batteries, 16 amp battery charger, and fused battery disconnect switch.
One (1) 240/120V single-phase AC system including station service fused disconnect switches, and automatic transfer switches.
One (1) Transformer protection panel with primary and secondary relays, utilizing SEL- 487E primary and SEL-387E backup.
One (1) Feeder control/protection panel with one SEL-351S per feeder (two total) and SEL-735 SCADA meter.
One (1) communication/RTU rack.
The control enclosure shall have the capacity for the addition of four future panel spaces.
Transclosure
Switching station control enclosure: Control enclosure will be complete with foundation, structural, HVAC, lighting, electrical, grounding, cable trays with the following major components:
EXISTING [***] SWITCHING STATION:
125VDC independent DC system including batteries, battery charger, and battery disconnect switch.
Amp-hour rating of batteries to be determined during detailed design.
Exhibit J – Page 3