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5.20 Dry Utilities

owned parcel and reconstruction of the existing overhead power lines along Gorman Post
Road within the SCE-owned easement from the substation to the Project site. Potential
infrastructure improvements necessary to serve the western portion of the Project site are
required by MM 20.2-2. In any event, the improvements implemented to serve the western
portion of the Project site would occur entirely on lands owned by SCE, and therefore would
not be on the Project site.

In addition to the expansion or upgrade of existing facilities and construction of a future
substation for Project buildout, an electrical distribution system would be developed on the
Project site to supplement and, in some cases, sell power back to the regional electrical grid.
This distribution system would be included within the main utility corridors for dry utilities
as shown on Exhibit 5.20-2, Centennial Project – Dry Utilities Improvements. The timing for
construction of these facilities, as well as the specific facilities’ locations and sizing, would be
coordinated with SCE. The necessary facilities would be constructed in advance of the land
uses that require the facilities in order to ensure that the Project’s electrical needs are met
as the site develops. The main utility corridors for dry utilities would be located underground
within Parkways or Secondary Highways, as discussed in the Project’s Mobility Plan
(Section 3.2 of EIR Appendix 4.0-A).

All new and upgraded on-site facilities and infrastructure would be ensured via MM 20.2-2
and would be implemented as part of the Project within the public road system right-of-way.
Those improvements to be constructed within the development area would not create any
additional physical impacts beyond those addressed elsewhere in this EIR as part of the
Project because implementation of electrical facilities would be concurrent with Project
development.

As stated above, connection to these existing facilities and development of a new on-site
electrical distribution system will occur as part of the Project. The only other existing off-site
facilities that would require upgrades or retrofitting to provide adequate electrical service
to the Project would be those discussed herein (i.e., the Gorman Substation and associated
overhead lines and/or the Bailey Substation and other off-site electrical lines).

Continuing coordination between the Project Applicant/Developer and SCE, as required by
MM 20.2-1, would ensure that the new system would accommodate the Project’s
requirements, including construction timing of these facilities and the specific facilities’
locations and sizing.

Energy Conservation in the Project

The Project would be subject to Title 24 and CALGreen Code energy efficiency standards.
However, as discussed in Section 5.21, Climate Change, the Project has committed to
compliance with CALGreen voluntary measure A4.203.1.2.1 for low-rise residential
buildings, resulting in buildings that would exceed 2013 Title 24 requirements by 15 percent
(see PDF 11-3 in Section 5.11, Air Resources), and with CALGreen voluntary measure
A5.203.1.2.1 for non-residential buildings and residential buildings taller than four stories,
resulting in buildings that would exceed 2013 Title 24 requirements by 10 percent
(PDF 11-2). Renewable energy produced on the Project site will be primarily rooftop solar,
and at minimum 50 percent of the Project’s anticipated electricity demand will be satisfied

R:\Projects\PAS\CEN\000306\Draft EIR\5.20 Dry Utilities-051117.docx 5.20-11 Centennial Project
Draft EIR