PORT OF SEATTLE 
MEMORANDUM 
COMMISSION AGENDA             Item No.      6b 
ACTION ITEM             Date of Meeting    April 3, 2012 

DATE:    March 23, 2012 
TO:     Tay Yoshitani, Chief Executive Officer 
FROM:    Dave Soike, Director, Aviation Facilities and Capital Program 
Wayne Grotheer, Director, Aviation Project Management Group 
SUBJECT:  Electrified Ground Support Equipment (EGSE) Charging Stations CIP #C800335 
Amount of This Request: $8,000,000    Source of Funds: Existing Revenue Bonds 
Est. State and Local Taxes: $0 (tax exempt) 
Total Project Cost: $30,700,000 (including expense funds) 
ACTION REQUESTED: 
Request Commission authorization for the Chief Executive Officer to: 1) prepare full design
documents for the Electrified Ground Support Equipment (EGSE) charging station project; 2)
authorize Port Construction Services (PCS) to install approximately 20 chargers as a
demonstration project; 3) authorize budget for the EGSE charging station project; and 4)
authorize execution of contracts for long lead time electrical equipment for power center
upgrades.
SYNOPSIS: 
This request enables staff to move forward on the project to phase out fossil-fueled vehicles such
as baggage tugs and aircraft pushback tractors, which will be owned and operated by the airlines, 
at Seattle-Tacoma International Airport (Airport). The Airport intends to install EGSE chargers
throughout the passenger terminals for airline use. This action will help improve air quality
while reducing the carbon footprint of the Airport. This request totals $8,000,000 ($7,900,000
capital plus $100,000 expense for regulated materials) toward an overall program budget of
$30,700,000. 
This project will ultimately reduce costs for the airlines by saving fuel costs, reducing 
maintenance costs, and enabling airlines to seek grant funds and tax benefits if they purchase
electrified vehicles in the near term. Fuel savings could reach one million gallons annually and a
Washington state sales tax waiver applies until 2016. The latest presentation of this project to
the airlines was made on February 22, where the airlines made favorable comments. The airlines
have begun the voting period regarding several projects, including EGSE, and results are
expected on March 26.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
March 23, 2012 
Page 2 of 6 
The overall EGSE program consists of four major components: PCS quickly installing up to 20
chargers in a demonstration project to be used by Horizon/Alaska Airlines, procurement of over
500 charging units, procurement of long lead-time electrical components, and a major
construction contract to install all of the infrastructure. The total estimated cost of the project is
$30.7 million to make chargers available across the entire Airport. This budget doubled from
original estimates based on additional information from preliminary design work and incorrect
soft costs in the original budget. 
Port staff is negotiating with the Western Washington Clean Cities Coalition (WWCCC) to 
update the interlocal agreement and extend the date by which grant funds must be expended.
The original WWCCC grant was for $5 million and directed towards EGSE vehicle purchases on
or before December 2, 2011. The revision to the interlocal agreement will authorize the grant
money to be used by (a) the airlines to offset their rolling stock equipment costs and (b) the Port
to pay for some of the EGSE charger costs. Additionally, staff will pursue Federal Aviation
Administration (FAA) grants next year to offset the cost of the chargers and/or electrical
infrastructure.
The Commission authorized $1,510,000 on October 26, 2010, to: 1) prepare preliminary
designs; 2) use Port work crews; and 3) execute and amend contracts for materials, abatement,
equipment, work, and services to move the EGSE project forward. Staff has conducted request
for proposals (RFP) procurement processes for EGSE vehicles and EGSE chargers. The Port
was unable to structure an acceptable vehicle lease for the airlines so the airlines will purchase
their own EGSE vehicles. The Port will execute a contract with Aerovironment for the EGSE
chargers. Depending on the outcome of negotiations with the U.S. Department of Energy 
(USDOE), the contract may contain a provision to allow the Port to make a down payment on the
purchase of the chargers. 
This project is included in the 2012-2016 capital budget and plan of finance and the additional
cost will be covered by a corresponding reduction in the Aeronautical New Project Allowance.
When designs are completed, additional authorizations will be requested to approve additional
funding and to proceed with advertisement and execution of infrastructure construction projects. 
BACKGROUND: 
Since 2005, staff has been working with the airlines towards installing EGSE equipment at the
Airport. In 2010, a USDOE grant awarded and administered through WWCCC was approved
for $5 million to offset the additional cost of EGSE vs. fossil-fueled ground support equipment
(GSE). Since then, staff has been working with the airlines to procure EGSE equipment , which
would be leased to the airlines, and to install the charging equipment at all aircraft gate parking
locations on the terminal concourse ramps. In October 2011, an impasse developed with regard
to purchasing the rolling stock because as a public agency we could not structure a lease that met
the airline requirements. In spite of this, the airlines remain supportive of the EGSE project. 
The WWCCC grant award has been renegotiated with the agency to allow airlines to utilize the
grant for vehicle and equipment purchases and the Port will utilize the remaining grant funds to
purchase the charging units. Currently, Washington's state law allows a waiver of state sales tax

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
March 23, 2012 
Page 3 of 6 
on the purchase and installation of energy saving equipment until 2016. This will save
approximately $2,000,000 in taxes for the Airport's portion of the work. 
During the preliminary design, staff determined that there was insufficient power at two
locations, the South Satellite and Concourse B. Due to the long lead time for major electrical
equipment, staff determined that an equipment pre-purchase by the Port would reduce the total
duration of the project.
In order to quickly demonstrate the feasibility of EGSE and let the airlines conduct training for
staff, the airlines have requested that we construct a "demonstration" project consisting of up to
20 charging units this year. Having an active EGSE area will also help satisfy the USDOE grant
requirements. When the chargers are ordered, 20 units will be for immediate delivery, which
will be installed by PCS at an appropriate gate, possibly near gate C-2. 
PROJECT JUSTIFICATION: 
Project Objectives: 
This project: 
Reduces carbon emissions 
Reduces airline fuel consumption by approximately one million gallons per year 
Reduces airline maintenance costs 
Takes advantage of grants and Washington state sales tax waivers that expire in 2016
for the project elements related to utilizing electrical power vs. fossil fuel 
PROJECT SCOPE OF WORK AND SCHEDULE: 
Scope of Work: 
This project will install electrical chargers throughout the passenger terminal ramps. The
chargers and the long-lead electrical equipment will be pre-purchased by the Port and delivered
to PCS and contractors when needed. Power centers will be upgraded at two locations to support
the additional electrical loads. PCS will install approximately 20 charging units on Concourse C
as a demonstration project for the airlines to use and train on. The installation of the remaining
charging units will be done in two phases. Phase 1 will consist of the North Satellite, Concourse
C, and Concourse D. Phase 2 will upgrade two power centers and install chargers throughout the
remainder of the Airport. The expense funds in this authorization will be utilized for design and
removal of the regulated materials encountered in the demonstration project area. 
Schedule: 
Commission Approval             April 2012 
Start Design                      April 2012 
Construct Demonstration Site (PCS)     July  October 2012 
Advertise Phase 1                  October 2012 
Advertise Phase 2                  February 2013 
Phase 1 Complete                 September 2013 
Phase 2 Complete                 September 2014

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
March 23, 2012 
Page 4 of 6 
FINANCIAL IMPLICATIONS: 
Budget/Authorization Summary:               Capital       Expense   Total Project 
Original Budget                        $14,410,000            $0     $14,410,000 
Budget Increase                        $15,788,000       $502,000    $16,290,000 
Revised Budget                       $30,198,000       $502,000    $30,700,000 
Previous Authorizations                    $1,510,000            $0     $1,510,000 
Current request for authorization               $7,900,000        $100,000     $8,000,000 
Total Authorizations, including this request        $9,410,000        $100,000     $9,510,000 
Remaining budget to be authorized           $20,788,000       $402,000    $21,190,000 
Total Estimated Project Cost               $30,198,000       $502,000    $30,700,000 
The budget increase was a result of the preliminary design efforts that revealed: 1) that two
power centers did not have sufficient capacity to support the additional power requirements of
the EGSE system on Concourse B and the South Satellite, and 2) that the original estimate did
not have the appropriate soft costs applied.
Project Cost Breakdown:                 This Request     Total Project 
Construction                           $5,200,000     $23,160,000 
Construction Management                  $150,000      $2,900,000 
Design                              $2,100,000      $2,500,000 
Project Management                     $500,000      $1,900,000 
Permitting                               $50,000       $180,000 
State & Local Taxes (estimated)                    $0        $60,000 
Total                                  $8,000,000     $30,700,000 
Budget Status and Source of Funds: 
EGSE Charging Stations CIP #C800335 is included in the 2012-2016 capital budget and plan of
finance with a budget of $14,410,000. The cost increase was covered by a corresponding
reduction in CIP #C102165, Aeronautical New Project Allowance, resulting in no net change in
the total Aviation capital budget. The source of funds for this project will be existing revenue
bonds, FAA grants totaling $7.7 million, and future revenue bonds.

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
March 23, 2012 
Page 5 of 6 
Financial Analysis and Summary:
CIP Category             Renewal/Enhancement 
Project Type              Renewal & Replacement 
Risk adjusted discount rate     Not Applicable 
Key risk factors             Not Applicable 
Project cost for analysis        $30,700,000 
Business Unit (BU)          Terminal & Airfield 
Effect on business performance  Costs will be recovered through various rates and
charges mechanisms: electrical energy through utility
charges; infrastructure improvements through terminal
rents and landing fees. 
IRR/NPV             N/A 
CPE Impact             $0.16 in 2013; however, no change from business plan
forecast as this project was included in the plan 
Lifecycle Cost and Savings: Per industry data, EGSE charging equipment lifecycle is estimated
between 13 and 20 years. Following design a more exact lifecycle will be identified. At full
build-out of the EGSE system, maintenance and repair labor costs are estimated at approximately
$150,000 annually, not considering "charging cord" repairs/replacements, which may be an
airline responsibility. Electrical costs, metering, and billing costs are still being assessed.
STRATEGIC OBJECTIVES: 
Exhibit Environmental Stewardship through our Actions. 
Be the greenest and most energy efficient port in North America; Reduce air pollutants
and carbon emissions. 
The Port's purchase and installation of EGSE charging stations will promote and expedite carrier
adoption of EGSE vehicles such as electric pushback tractors and tugs. Implementation of
EGSE reduces emissions at the Airport. The U.S. Environmental Protection Agency considers
electric vehicles one of the best alternative vehicle fuel options for emission reductions.
ENVIRONMENTAL SUSTAINABILITY: 
The project will promote the use of energy efficient electric equipment, reduce use of fossil fuel,
and reduce greenhouse gas emissions by up to 10,000 metric tons of CO2. Sea -Tac's electrical
needs come from nearly 100 percent renewable sources; providing air quality improvements both
locally and regionally. This project eliminates the need of up to one million gallons of fossil fuel 
annually, thus reducing demand for non-renewable natural resources. 
BUSINESS PLAN OBJECTIVES: 
The business plan objectives promoted by this project include the following: 
Operate a world-class international airport by anticipating and meeting the needs of our
tenants, passengers and the region's economy 
Lead the airport industry in environmental innovation and minimize the Airport's
environmental impacts

COMMISSION AGENDA 
Tay Yoshitani, Chief Executive Officer 
March 23, 2012 
Page 6 of 6 
TRIPLE BOTTOM LINE SUMMARY: 
This project helps to clean the environment by reducing greenhouse gases, which benefits the
communities surrounding the Airport, creates short-term construction jobs, and potentially
incorporates small business opportunities to encourage small business participation in a major
construction contract. 
ALTERNATIVES CONSIDERED AND THEIR IMPLICATIONS: 
Alternative 1: Port purchases and installs EGSE charging stations. 
The Port of Seattle proposes to purchase and install the necessary infrastructure for Sea-Tac
airline carriers to utilize EGSE. By providing EGSE charging stations, carriers are encouraged
to preferentially upgrade their GSE fleet with electric vehicles at the Airport. EGSE provides
significant financial benefit for carriers through fuel and maintenance savings. Because EGSE
does not have tailpipe emissions, Sea-Tac will be able to document air quality benefits from the
project as well. The fuel savings associated with an airport-wide EGSE program could reach one
million gallons annually. This is the preferred alternative. 
Alternative 2: Do nothing. 
In the do nothing scenario, the Port would let market forces determine the rate at which EGSE
implementation would occur. Staff is concerned that without promoting the use of EGSE and
providing the necessary infrastructure for it, the Airport may inadvertently condone the use of
fossil fueled GSE for an extended period. Specifically, as carriers invest in EGSE at airports
with poor air quality, their legacy fossil fueled equipment will be redeployed in areas that do not
have immediate air quality concerns such as Sea-Tac. This is not the preferred alternative. 
OTHER DOCUMENTS ASSOCIATED WITH THIS REQUEST: 
None. 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS: 
On September 12, 2011, the Commission authorized signing contracts for EGSE vehicles
and EGSE chargers. 
On May 10, 2011, the Commission was briefed regarding progress on the EGSE project
prior to soliciting pricing for rolling stock. 
On October 26, 2010, the Commission authorized $1,151,000 for preliminary design,
necessary contracts, and work by Port forces to begin to implement the ultimate project;
pre-purchase specialized equipment and materials through competitive bid processes; and
to authorize Port Construction Services to perform regulated materials management
(RMM) investigations and self-perform necessary associated work. 
On September 28, 2010, the Commission was briefed on the 2011 capital budget that
included the above-mentioned EGSE projects. 
On September 8, 2005, the Commission was briefed on the benefit of changing from
fossil fuel based GSE vehicles to EGSE based vehicles at Seattle-Tacoma International
Airport.