COMMISSION 
AGENDA MEMORANDUM                        Item No.          8e 
ACTION ITEM                            Date of Meeting       May 28, 2024 

DATE:     May 16, 2024 
TO:        Stephen P. Metruck, Executive Director 
FROM:    Cox, Sarah, Director, Aviation Environmental 
Francisco, Eileen, Director, Aviation Project Management 
SUBJECT:  Electric  Vehicle  Chargers  for  the  Aviation  Fleet  Design  and  Construction
Authorization (C801232) 
Amount of this request:               $2,698,000 
Total estimated project cost:          $2,947,000 

ACTION REQUESTED 
Request Commission authorization for the Executive Director to (1) authorize design and prepare 
construction bid documents; (2) advertise, award, and execute a major works construction
contract;  (3)  execute  related  project  change  orders,  amendments,  work  authorizations,
purchases, contracts, and take other actions necessary to support and deliver the Electric Vehicle
(EV) Chargers for Aviation Fleet project within the approved budget; and (4) authorize use of Port
of Seattle crews and small and major works on-call contracts to support the design and
construction activities. This request is for $2,698,000 of a total estimated cost of $2,947,000. 
EXECUTIVE SUMMARY 
The Aviation Fleet Manager is working to transition Seattle-Tacoma International Airport’s (SEA) 
vehicle fleet to electric per the Port’s Sustainable Fleet Plan. This project supports that effort by
installing 15 Level 2 chargers at fleet parking spots on the first floor of the Parking Garage, and a
mix of Level 2 and Level 3 chargers for 7 spots on the airfield near Concourse D. By enabling the
conversion of  these high-use vehicles to electric, the Aviation Division can reduce both
greenhouse gas emissions and total lifetime cost to own and operate vehicles in comparison with
internal combustion engine vehicles. 
JUSTIFICATION 
This project will support the electrification of high-use Aviation fleet vehicles. The Level 3
chargers on Concourse D will allow Aviation Operations to use electric trucks for a range of tasks 
across SEA locations. These Level 3 chargers will be able to charge vehicles in 1-2 hours,
dramatically reducing charging time when compared to the Level 2 chargers that take 8-10 hours.

Template revised January 10, 2019.

             COMMISSION AGENDA – Action Item No. 8e                                  Page 2 of 4 
Meeting Date: May 28, 2024 
The Level 3 chargers are needed on the airfield as these vehicles are used continuously, especially
during emergency response situations and snow events. Chargers in the Parking Garage are
planned to be Level 2 as the vehicles that will use these chargers have more regular downtime
and can charge overnight or between shifts. 
This project will reduce greenhouse gas emissions of the Aviation fleet by at least 175 metric tons 
of CO2 per year. This is nearly 20% of the current annual CO2 emissions from the Aviation fleet. 
This will help the Port meet its Century Agenda goal to reduce greenhouse gases by 50% by 2030. 
Electrifying the vehicle to be supported by these chargers will also save at least $85,000 per year
in fuel costs. 
Diversity in Contracting 
This project will use an existing IDIQ contract for design that was established in 2022. The
contract includes a 16% women-and-minority-owned business enterprise (WMBE) participation
utilization requirement. The project team will work with Diversity in Contracting Department to
determine participation opportunities and appropriate aspirational goals for WMBE for the
construction phase of the project. 
DETAILS 
Project is installing 15 Level 2 chargers in the Parking Garage; and a mix of Level 2 and Level 3
chargers on Concourse D to support 7 parking spots. These chargers will support electric charging
for at least 22 high-use fleet vehicles. 
Scope of Work 
Work involves installing the infrastructure required to support the new EV chargers. This will
include: 
(1)   Electrical power and conduit from electrical panels to charging equipment; 
(2)   Signage as required by code; 
(3)   Striping for parking stalls and as needed for movement of drive lanes; 
(4)   Bollards to protect the charging equipment; 
(5)   Foundations for charging pedestals; 
(6)   Charging equipment; and 
(7)   All other necessary work to ensure the chargers work as intended. 
Schedule 
Activity 
Design start                                       2024 Quarter 2 
Construction start                                2024 Quarter 4 
In-use date                                       2025 Quarter 2 

Template revised June 27, 2019 (Diversity in Contracting).

             COMMISSION AGENDA – Action Item No. 8e                                  Page 3 of 4 
Meeting Date: May 28, 2024 
Cost Breakdown                                     This Request           Total Project 
Design                                                    $879,000             $1,128,000 
Construction                                             $1,819,000             $1,819,000 
Total                                                         $2,698,000              $2,947,000 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1 – Status Quo – Don’t install the EV Chargers 
Cost Implications: Expense $240,000 spent to date 
Pros: 
(1)   Reduces the capital expenditure 
Cons: 
(1)   Does not allow for electrification of high-use vehicles on the ramp of the Airport 
(2)   Requires expensing the cost of work to date 
This is not the recommended alternative. 
Alternative 2 – Install only the chargers on the ramp of Concourse D to support 7 parking spots. 
Cost Implications: $1,874,000 
Pros: 
(1)   Reduces the capital expenditure 
(2)   Allows for electrification of 7 high-use vehicles on the ramp of the Airport 
Cons: 
(1)   Does not allow for electrification of 15 high-use vehicles in the Aviation Fleet 
This is not the recommended alternative. 
Alternative 3 – Install 15 chargers on in the fleet area of the Parking Garage and chargers on
Concourse D for 7 parking spots to support electrification of high-use vehicles. 
Cost Implications: $2,947,000 
Pros: 
(1)   Supports electrification of 22 high-use Aviation fleet vehicles 
(2)   Reduces greenhouse gas emissions by an estimated 175 tons of CO2 per year 
Cons: 
(1)   Highest capital expenditure 
This is the recommended alternative. 


Template revised June 27, 2019 (Diversity in Contracting).

             COMMISSION AGENDA – Action Item No. 8e                                  Page 4 of 4 
Meeting Date: May 28, 2024 
FINANCIAL IMPLICATIONS 
Cost Estimate/Authorization Summary              Capital        Expense           Total 
COST ESTIMATE 
Original estimate                                   $932,000               $0        $932,000 
Previous changes – net                          $1,705,000                0       1,705,000 
Current change                                   $310,000               0       $310,000 
Revised estimate                                $2,947,000                0      $2,947,000 
AUTHORIZATION 
Previous authorizations                            $249,000                0        $249,000 
Current request for authorization                $2,698,000                0      $2,698,000 
Total authorizations, including this request       $2,947,000                0      $2,947,000 
Remaining amount to be authorized                    $0             $0             $0 
Annual Budget Status and Source of Funds 
This project (CIP #C801232) was included in the 2024-2028 capital budget and plan of finance 
with a total capital budget of $2,637,000. The additional $310,000 was transferred from the
Aeronautical reserve. The funding sources will be the Airport Development Fund (ADF) and
revenue bonds. 
Financial Analysis and Summary 
Project cost for analysis              $2,947,000 
Business Unit (BU)                  Division wide, 69.2% airlines cost recovery 
Effect on business performance     NOI after depreciation will increase due to inclusion of
(NOI after depreciation)             capital (and operating) costs in airline rate base. 
IRR/NPV (if relevant)                N/A 
CPE Impact                       $0.01 in 2026 
Future Revenues and Expenses (Total cost of ownership) 
This project will allow for replacement of high-use vehicles with electric vehicles. This will save
approximately $85,000 a year in fuel costs. The chargers will be supported by Aviation
Maintenance. 
ATTACHMENTS TO THIS REQUEST 
(1)   Presentation slides 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
None 

Template revised June 27, 2019 (Diversity in Contracting).