Page 430 - Mines Facilities Plan

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EXISTING CAMPUS ELECTRICAL SUMMARY

CAPACITY CAMPUS PEAK DEMAND AND XCEL ENERGY Based on the 600A primary meter rating, the maximum capacity of Xcel Energy’s service to Mines is 13.7 MVA, and the campus peak electrical demand for the past year was 6.4 MW. Based on that demand and assuming a 0.87 power factor, Xcel Energy is able to supply up to an additional 5.5 MW of load from the existing medium voltage service. CAMPUS PEAK DEMAND AND ISOC GENERATOR PLANT As part o

installed as part of an Interruptible Service Option Credit (ISOC), which allows
(east of Maple Street and west of Washington Street between 18th Street and
UTILITY SERVICE AND CAMPUS MEDIUM VOLTAGE
2A/2B primarily serves campus buildings south of 17th Street to 19th Street.
loops (Loop 1 and Loop 2). The loops extend through campus from the new
Xcel Energy to shed the Mines load during periods of peak demand. During
of the Wright Wellness Center. Loop 1 and Loop 2 each include A & B sides
The Mines campus is fed by an Xcel Energy electrical system from Lookout
Substation at 13.2 kV through an 800A substation circuit breaker to a 600A
The campus medium voltage electrical distribution system includes two (2)
switchgear that were installed in 2017/2018. In 2018 a generator plant was
rated Xcel Energy primary meter. From the primary meter, medium voltage
Loop 2A/2B will serve the future campus expansion to the east expansion
S&C Vista 624 switchgear installed in 2017/2018 that is on the north side
these times, the campus is served by Mines’ ISOC generator plant and is
is routed through to two (2) Mines-owned 600A, 15.5 rated kV S&C Vista
Loop 1A/1B primarily serves campus buildings north of 17th Street. Loop
originating from four (4) 400A circuit breakers in the 624 switchgear.
 Colorado School of Mines Facilities Master Plan

8.0 LOOPS disconnected from the Xcel Energy service. 17th Street) as proposed by the Facilities Master Plan. 424