Item No. 9b supp
Meeting Date: June 12, 2018

Main Terminal Low Voltage
System Upgrade
C800061

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Main Terminal Low Voltage
System Upgrade
• What is the Main Terminal?
• What is Low Voltage?
• What is being Upgraded?

Concourse B

Concourse A

Concourse C

Concourse D

MTLV System Upgrade
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High Voltage Distribution System

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Low Voltage Distribution System
Power Centers

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STIA Main Terminal

The Main Terminal and Work Area
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Passenger Experience Video

Passenger Experience
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Justification for Project
• Genuine risk to airport/airline operations
- Aged equipment, risk of failure/fire (water damage), extended
outages to repair
- Loss of power to ticket counters and kiosks, baggage claim,
communications, airline offices, elevators/escalators, HVAC.
• Existing system has limited capacity
- Negates new equipment/circuits or increased loads
• Unsafe working conditions - risk of injury or death
• Inability to meter/monitor power usage
Risks of Delay
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Typical Main Terminal Electrical Room
28" FROM PANEL TO
RAILING
MECHANICAL
VALVES IN
WORKING SPACE
DANGER! ASBESTOS!

Safety issues in typical old Main Terminal electrical space.
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Typical Main Terminal Electrical Room

Safety issues in typical old Main Terminal electrical space with worker.
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Another Electrical Room
6" CLEARANCE

23" CLEARANCE

18" CLEARANCE
Working space does not comply with National Electrical Code.
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Typical Power Panels in Main Terminal
• Manufacturer no longer in business.
• All breakers in use.
• Replacement circuit breakers not available.
• Unsafe condition.

Obsolete electrical panels.
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Recent Power
Outage in the News
• Aging equipment was scheduled
for replacement.
• "Equipment failed before we
could get to it."

Failure of Aging Electrical Equipment Results in Power Outage
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Project Work

Electrical Rooms
Electrical Panels
Conduit Runs

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Overview Budget
• Est. Final Construction Costs: $70,546,000
• Est. Design Costs: $29,754,000
• Est. Program Total: $100,300,000

Estimated Program Total: $100,300,000
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Scope Item Costs
Scope Item

2014 Estimate

2018 Estimate

Normal Power

$20 Million

$61 Million

Emergency Power

$0

$5 Million

Central Power
Center

$0

$14 Million

Branch Metering

$0

$7 Million

Regulated Materials
Abatement

$0

$13 Million

Scope item cost by line item.
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Overview Schedule
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Commission Authorization for Design: Q3 2018
Design Team and GCCM Begin: Q1 2019
Design Complete: Q4 2021
Commission Authorization for Construction: Q3 2021
Construction Start: Q4 2021
Construction Complete: Q1 2025
Construction Complete 2024
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Questions?

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