4f

PORT OF SEATTLE 
MEMORANDUM 
COMMISSION AGENDA               Item No.       4f 
ACTION ITEM 
Date of Meeting    December 8, 2015 
DATE:    December 2, 2015 
TO:      Ted Fick, Chief Executive Officer 
FROM:   David Soike, Director, Aviation Facilities and Capital Programs 
Wayne Grotheer, Director, Aviation Project Management Group 
SUBJECT:  Gate Improvements Loading Bridges Utilities, Concourse B 400Hz (CIP
#C800019) 
Amount of This Request:        $3,567,282   Source of Funds:      Revenue Bonds 
Est. Total Project Cost:         $16,734,282 
Est. State and Local Taxes:        $511,000 
ACTION REQUESTED 
Request Commission authorization for the Chief Executive Officer to advertise for bids, award
and execute a major works construction contact for the Concourse B Gate Improvements project.
The amount of this request is $3,567,282 for a total authorization of $16,734,282. 
SYNOPSIS 
This project will complete the Gate Improvements Loading Bridges Program by completing the
400Hz ground power system project on Concourse B. The gates on Concourse B are the only
remaining aircraft gates that require 400Hz electrical connections upgrades. Upon completion,
the aircraft that use these gates will be able to plug-in to the terminal rather than burn fossil fuel
to power the aircraft auxiliary jet engine that in turn powers the flight deck controls. 
Staff notified the Commission in December 2014 that the electrical power requirements for the
new generation aircraft scheduled to use concourse B had been determined, and requested to
restart the design process. Staff informed the Commission that the updated design and delay in
project implementation would likely increase the cost estimate for construction. Design and
construction on Concourse B was delayed to focus on ground power for the South Satellite
because ANA Airline's first new 787 aircraft was to begin service between Seattle and Tokyo.
Staff has completed design of the Concourse B 400Hz gate improvements project and updated
the cost estimate, and project schedule. The cost increase to complete this last phase of the
project is $1,085,970. 


Template revised May 30, 2013.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
December 2, 2015 
Page 2 of 8 
BACKGROUND 
In 2002 the Commission directed that 400Hz Ground Power be provided to North Satellite and
the new Concourse A. Upon the successful upgrade of North Satellite, the Commission directed
that Concourse B, C, D and South Satellite be provided with 400Hz Ground Power as well.
The project, including this scope of work, was originally authorized in June 2007 under a project
wide authorization. The original scope included the installation of 400Hz power and potable
water on both the B Concourse and South Satellite. The design was completed to 90% in
December 2008 when the project was placed on hold due to the economic environment. In July
2010 the project was reactivated. In December 2012, the Concourse B 400Hz ground power
system portion of the scope was placed on hold again since the aircraft types that might utilize
that concourse were uncertain, as the new generation of aircraft requires a higher level of
electrical service due to recent technology advances. 
Since 2012, the Concourse B part of this project has undergone several significant changes.
Gates B1 and B4 have been added, the preconditioned air (PC air) project on Concourse B has
been completed, and the National Electric Code has gone through two updates. The Concourse B
400Hz ground power system was redesigned to ensure the system will provide the best possible
service to the airlines and traveling public and to meet current code requirements. Staff is 
returning to request Commission authorization to advertise and execute a construction contract 
and complete the final phase of this program. This project will be the completion of the 400Hz
Ground Power to all gates at SeaTac Airport directed thirteen years ago by the Commission 
There are several different systems currently providing 400Hz power to many of the B concourse
gates. There are old diesel powered generators, there are solid state generators, and there is one
old motor generator set. The difference between a solid state power supply and a motor generator
is that the latter is a cleaner source of power that is also longer lasting. The solid state power
supply depends on transistors and electronic circuits to produce an approximation of a 400Hz
power wave and has a life expectancy of fifteen years versus a motor generator that is a pure 
analog 400Hz wave and have a life expectancy of thirty years. 
PROJECT JUSTIFICATION AND DETAILS 
Project Objectives 
Advance the Port's Century Agenda objective of reducing aircraft emissions and noise 
Provide sufficient power to the Concourse B gates to support the current and next
generation aircraft 
Enable the Airport to maximize the use of each Concourse B gate 
Reduce the possibility of a carrier being assigned to a gate without the same amenities as
the rest of the airport

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
December 2, 2015 
Page 3 of 8 
Scope of Work 
The scope of work for this project includes the design and construction of a 400Hz ground power
system for all 13 Concourse B airport-owned gates. The project will install two 400Hz motor
generator sets, gate-boxes and other equipment to ensure adequate power is provided to all 13
Concourse B gates. The new 400Hz motor generator (MG) sets and gate boxes will provide
adequate ground power for current and future generation aircraft that will utilize the Concourse
B gates. 
Schedule 
Advertise for bid and award construction contract:            2nd Quarter 2016 
Construction start:                                   3rd Quarter 2016 
System in use:                                    4th Quarter 2017 
FINANCIAL IMPLICATIONS 
Budget/Authorization Summary for Entire
Gate Improvements Loading Bridges Utility
Project                                 Capital      Expense   Total Project 
Original Budget                      $9,385,000          $0    $9,385,000 
Previous Changes                    $5,093,969    $1,169,343    $6,263,312 
Current Increase/(Decrease)               $1,635,000    $(549,030)    $1,085,970 
Revised Budget                     $16,113,969     $620,313   $16,734,282 
Previous Authorizations (Phase 1)           $8,686,969     $381,313    $9,068,282 
Art Pool Transfer                       ($44,000)          $0     $(44,000) 
Previous Authorizations (Phase 2)           $3,789,688      $353,030    $4,142,718 
Current request for authorization            $3,681,312     $(114,030)    $3,567,282 
Total Authorizations, including this request    $16,113,969      $620,313    $16,734,282 
Remaining budget to be authorized               $0          $0          $0 
Total Estimated Project Cost             $16,113,969     $620,313   $16,734,282 
Project Cost Breakdown for Concourse B
400 Hz (Phase 2 program elements to be
completed)                            Capital      Expense   Total Project 
Design Phase                       $1,006,000     $218,000    $1,224,000 
Construction Phase                    $5,954,000      $21,000    $5,975,000 
Sales Tax                            $511,000          $0     $511,000 
Total                                $7,471,000      $239,000     $7,710,000 
The current budget increase is the result of discovering many changes from the original design
due to three two electrical code revisions, and airport layout changes that have occurred since the
design was originally completed. The construction estimate has also been revised to account for

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
December 2, 2015 
Page 4 of 8 
the current construction market. The budget reduction shown is the RMM that was planned to be
done has been done by previous projects. 
Budget Status and Source of Funds 
This project, C800019, was included in the 2016  2020 capital budget and plan of finance with
a budget of $14,478,969. The budget increase will be transferred from the Aeronautical
Allowance CIP (C800404), resulting in no net change to the airport capital budget. The funding
source for the remaining scope of work will be revenue bonds.
Financial Analysis and Summary 
CIP Category             Renewal/Enhancement 
Project Type              Renewal & Replacement 
Risk adjusted discount rate     N/A 
Key risk factors             N/A 
Project cost for analysis        $7,710,000 
Business Unit (BU)          Terminal  Airline Equipment 
Effect on business performance  NOI after depreciation will decrease 
IRR/NPV             N/A 
CPE Impact             CPE will increase by $.03 in 2018. The Airlines will
realize lower operating and maintenance costs as a result
of this project. 
Lifecycle Cost and Savings 
Annual operating and maintenance costs have been calculated by Aviation Maintenance at
approximately $3,450 per gate per year. This results in a total cost for the entire system of 13
gates at Concourse B of $44,850 for the first year. We anticipate an estimated 3% inflation
escalation thereafter. This is based on the level of repair currently being performed on other
similar systems based on actual costs for 2012  2015 year to date. The additional gate
equipment added will result in an additional work load equivalent to one half of a Full Time
Equivalent (FTE). Any request for FTE is not part of this request, and if necessary will be
incorporated in the overall Aviation Maintenance budgeting process. 
STRATEGIES AND OBJECTIVES 
The Gate Improvements Loading Bridges Project supports several of the Port Strategies and
Objectives, notably: 
This project promotes the Port's Century Agenda objective of meeting the region's air
transportation needs at the Airport for the next 25 years. Flexible gate operations will allow for
more efficient utilization of the airport's existing facilities. This project will reduce aircraft
emissions and noise by providing 400Hz ground power so that the aircraft need not operate the
onboard, jet fueled auxiliary power units.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
December 2, 2015 
Page 5 of 8 
TRIPLE BOTTOM LINE 
Economic Development 
This project supports the Airport's initiative to standardize equipment and provides the flexibility
the airport needs to assign gates and to operate more efficiently. 
Environmental Responsibility 
This project will reduce the amount of emissions and noise generated by aircraft by eliminating
the need to use the aircrafts' onboard auxiliary power units to operate the aircrafts electronics
before and after gate arrival. The project will increase our electricity use. 
Community Benefits 
This project supports the Airport's strategy to operate a world class international airport by
anticipating and meeting the needs of our tenants, passengers and the region's economy.
Minimizing new facilities construction requirements by making new operational improvements
with up-to date equipment and technology helps to minimize costs to the airlines, thereby
supporting the Airport's strategy to reduce airline costs. The program manager will collaborate
with the Office of Social Responsibility (OSR) to maximize small business participation
throughout this project. 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1)  Do not upgrade the 13 Concourse B Gates with a 400Hz Ground Power
System at the time: 
Pros: 
No capital investment required. 
Defers costs to future. 
Cons: 
This alternative will result in the airlines on Concourse B not having the same level of
service as all the other concourses and gates here at the Airport. 
Airlines on Concourse B will continue to use emission and noise producing systems to
generate aircraft power. 
The current redesign would be expensed at a cost of approximately $425,000. The
previous design was previously expensed at a cost of $218,000. 
Redesigning the project at a later date will likely result in significate costs to comply with
electric code changes, increased equipment and labor cost and other unknown changes to
Concourse B. 
Existing 400Hz systems and equipment are near the end of their life cycle. 
Contrary to previous Commission direction to provide 400Hz Ground Power to all gates. 
This is not the recommended alternative.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
December 2, 2015 
Page 6 of 8 

Alternative 2)  Upgrade only the Concourse B gates that are using fossil fuel burning ground
power units and systems nearing life cycle end and provide 400Hz with solid state units 
Pros: 
Reduces investment by the Port of Seattle. Alternative only upgrades gates B4 & B11 at a
cost of approximately $1,630,000 in design and construction. 
Reduces aircraft noise and emissions at gate B4. 
System in use date remains 4th quarter 2017. 
Cons: 
Does not significantly increase flexibility of gate usage on Concourse B. 
Does not significantly reduce aircraft noise, fuel usage and aircraft emissions throughout
Concourse B. 
Current 100% redesign effort would be expensed at a cost of approximately $425,000 
This alternative although simple in concept requires redesign (cost included above) 
Existing 400Hz systems that would not be replaced under this alternative (are near the
end of their life cycle. 
Concourse B will not provide the same level of 400Hz service as all the other concourses
at the airport. 
Short life of portable solid state units and increase costs with solid state units and lower
power quality. 
Additional ramp space must be found and longer connection to aircraft if portable solid
state units must be repositioned for different aircraft.
This is not the recommended alternative. 
Alternative 3)  Upgrade all 13 Concourse B gates with new solid state 400Hz units. 
Pros: 
Reduces aircraft noise and emissions throughout Concourse B. 
Optimizes gate flexibility for all the airlines. 
Will provide the ground power systems that current and future aircraft require. 
Reduces emissions and noise. 
Replaces systems and equipment on Concourse B that are near the end of their life cycle. 
Project is aligned with the Port's strategy to operate a world class international airport. 
Cons: 
Current 100% design effort would be expensed at a cost of approximately $425,000. 
Life cycle for solid state units is 50% less than motor generator (MG) sets (15 years vs.
30 years). 
Long term maintenance costs increase with solid state units.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
December 2, 2015 
Page 7 of 8 
Concourse B will not provide the same level of service as all the other Concourses at the
airport in terms of power quality and full gate power capacity to meet new aircraft needs. 
This alternative would need to be designed and the system in use date would be delayed
until the 2nd quarter of 2018. 
Requires investment by the Port of Seattle for an estimated cost of $7,740,000 to redesign
and construct. 
This is not the recommended alternative. 
Alternative 4)  Upgrade all 13 Concourse B gates with only one new MG set instead of two
in order to provide 400Hz ground power. 
Pros: 
Reduced investment by the Port of Seattle - estimated cost $7,302,000. 
Optimizes gate flexibility for all the airlines. 
Will provide the ground power systems that current and future aircraft require. 
Reduces emissions and noise. 
Replaces systems and equipment on Concourse B that are near the end of their life cycle. 
Project is aligned with the Port's strategy to operate a world class international airport. 
Cons: 
Portions of the current 100%  redesign effort would be expensed at a cost of
approximately $425,000. 
No 400Hz redundancy on Concourse B (all other Concourses have redundant systems;
North Satellite has two MG sets, South Satellite has three MG sets). 
This alternative though simple in concept would require redesign effort (cost included
above). 
Concourse B would not provide the same level of service as all the other Concourses and
Satellites (no 400Hz redundancy). 
This is not the recommended alternative. 
Alternative 5)  Upgrade all 13 Concourse B gates with two new MG sets to provide in
order to provide 400Hz ground power. 
Pros: 
Optimizes gate flexibility for all the airlines. 
Will provide the ground power systems that the current and future aircraft require. 
Reduces emissions and noise. 
Current redesign scope is to provide two new MG sets. 
Replaces systems and equipment on Concourse B that are near the end of their life cycle. 
Systems in use date remains 4th quarter 2017. 
Project is aligned with the Ports strategy to operate a world class international airport.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
December 2, 2015 
Page 8 of 8 

Cons: 
Requires capital investment of $7,710,000 by the Port 
This is the recommended alternative. 
ATTACHMENTS TO THIS REQUEST 
Computer slide presentation. 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
December 1, 2014 Commission authorized the restart for the design of the Concourse B
400Hz Gate Improvements project. 
December 4, 2012 Commission authorized the advertisement, award and execution of a
major construction contract not to exceed $8,242,000. 
March 6, 2012 the Commission authorized $328,000 expense funding to CIP 800019. 
October 11, 2011 Commission authorized a major construction contract in the amount
of $6,144,000 of the authorized $12,883,000. 
June 14, 2011 Commission authorized an additional $3,489,000 to  CIP 800019
increasing the total project budget to $12,883,000. 
June 28, 2007 Commission authorized $9,385,000 (CIP 80019) to replace the 
400Hz Ground Power systems at the South Satellite and Concourse B plus upgrade 29
gates with 400Hz equipment and Potable Water Cabinets. 
December 10, 2002 Commission authorized $2,614,000 (CIP) 102102 to replace and
upgrade the 400Hz Ground Power system at the North Satellite.

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