Page 404 - Mines Facilities Plan

upgrading the feeders is to put new or existing loads onto a second primary

service from Xcel (item G.2 above). The capacity of the Interruptible Service Option Credit (ISOC) Generator Plant will need to be increased by installing additional engine-generator sets (gensets). Two (2) gensets are anticipated to be needed by Summer 2020. Five (5) additional gensets are anticipated to be needed over the course of the master plan horizon. In addition, it is anticipated that the load added during the master plan will eventually exceed the

September 6, 2019. It is important to understand that Xcel’s available capacity
on a meeting with Xcel Energy (Xcel), Facilities Management, and SBEC on
rst served ISOC CAPACITY 1.25 MW Increase No increase, but decreases existing loads 1.9 MW Increase No change No change Note: The years listed in this chart are based on the year buildings are anticipated to start design and therefore the actual work may be performed in subsequent years.
basis, and the opportunity to reserve capacity for future projects is limited
options for increasing the capacity available for the campus and is based
currently available from Xcel. A table is included below that summarizes
The campus electrical power load is projected to exceed the capacity
rst come, fi and expensive. As a result, SBEC recommends that the available capacity be 

is reallocated to new loads and new customers on a fi

reviewed with Xcel on an annual basis. The campus electrical power load as part of the master plan is projected to exceed the capacity of two (2) of the campus medium voltage feeders. However, the projected load includes a 15 percent safety factor for new buildings. As a result, the projected load is conservative, and the actual load from the anticipated future buildings may be lower. The actual peak demand for the campus should be monitor

ELECTRICAL YEAR 2020 2021 2023 Opt. 1 2023 Opt. 2 2027 Opt. 1 2027 Opt. 2 398