7c. Attachment

Item No.      7c_attach
Meeting Date: February 28, 2017

Developing the Port of Seattle's 
Energy Portfolio
Final Recommendations

October 21, 2016

Table of Contents

1  Energy Committee Members
2  Project Objective & Approach
3  Energy & GHG Assessment & Load Growth Projections
4  Achieving the Century Agenda Goals
5  Summary of Energy Conservation & Renewable Energy
Solutions
6  Findings & Recommendations
7  Detailed Descriptions of Conservation and Renewable
Strategies

2

Energy Committee Members
Name            Title                        Department 
Andy Botts          Electrical Engineer                Aviation Facilities and Infrastructure 
Terrance Darby      Sustainability Program Manager   Maritime Environment and Planning
Scott DeWees       Environmental Specialist         Aviation Environment and Planning
Stephanie Meyn    Climate Program Manager        Aviation Environment and Planning 
Paul Meyer        Manager, Environmental          Maritime Environment and Planning
Programs 
Lynn Oliphant      Systems Engineer                 Aviation Facilities and Infrastructure 
Joseph Pelonio     Manager, Lease and Utilities      Portfolio Management (Corporate)
Leslie Stanton       Manager, Sustainability            Aviation Environment and Planning 
Mike Tasker         Sr. Manager, Facilities             Aviation Facilities and Infrastructure
Wendell Umetsu   Manager, Electrical Systems      Aviation Facilities and Infrastructure

Prepared by Haley & Aldrich, Inc.                                                            3

Project Approach
Objective: Identify opportunities to achieve the Port of Seattle's Century Agenda
energy load growth and GHG reduction goals.

Task 1: Summarize Port-          Task 2: Strategy           Task 3: Develop Energy
Wide Energy Use and          Identification and                Portfolio
GHG Projections                Exploration               Recommendations 
1.  Sum Port-operated         1.  Review energy              1.  Estimate relative
energy sources &              strategies from peer           costs and impacts
uses                        organizations and         2.  Prioritize by Level of
2.  Estimate 20-year                private sector                   Confidence
load growth and           2.  Brainstorm with Port      3.  Estimate impacts on
emission projections           staff for additional             Century Agenda
opportunities                 goals
3.  Screen list of                4.  Develop final
opportunities                 recommendations


4

Developing Port-Wide
Energy Use and GHG Projections
All electricity, natural gas, and liquid fuel bills paid by Port of Seattle
were evaluated,
All energy converted to MMBTU,
Energy sub-metered and billed to tenants was not included in this
evaluation,
In many Port facilities, energy costs are recovered via flat fees, with no
visibility into actual energy use,
Future load growth was based on building model estimates completed
for the Sustainable Airport Master Plan (SAMP).


5

Utility Bill Availability (does not include sub-metering)
Included                                                Included
Airport                  Electricity     Natural Gas       Seaport                  Electricity     Natural Gas
Terminals/Cargo                                        Terminal 91                                 
Bus Maintenance                                       Fisherman's                                

Facility
Shilshole Bay                                 
Fire Station                                     
Pier 66                                        
Pumphouse                                     Pier 69                              N/A

Distribution Center                                       Marine Maintenance                           
Airfield & Perimeter                                          MIC                                            
N/A
Lighting
Terminal 102                                 
Tenant Facilities
(other than dining &                           N/A           Terminals 5                                     
retail)
Generators                                              Terminals 18, 102, &

(Liquid Fuels)                                                  Parks
Fleet Vehicles                                                 Fleet Vehicles

(Liquid Fuels)                                                  (Liquid Fuels)

6

Port-Wide Annual Energy Usage
600,000
500,000
26% 
400,000
MMBTU  300,000                          7%                            Seaport
74% 
200,000                                                           Airport
93% 
100,000
35% 
0                                        65% 
Electricity          Natural Gas         Liquid Fuels
Seaport Energy Use By Type                          Airport Energy Use By Type
2011-2015                                         2011-2015 
800,000                                                                            800,000
700,000                                                                            700,000
600,000                                                                            600,000
500,000                                                                            500,000
MMBTU  400,000                                                     MMBUT  400,000
300,000                                                                            300,000
200,000
200,000
100,000
100,000
0
0
2011        2012        2013        2014        2015
2011       2012       2013       2014       2015
Electricity      Natural Gas       Liquid Fuels                                                     Airport            Natural Gas     Liquid
Electricity                          Fuels
7
Source: Port of Seattle MMBTU Analysis

Port-Wide Annual Greenhouse Gas Emissions
20,000
18,000
4% 
16,000
14,000
Metric Tons  12,000
10,000                                                                                  Seaport
8,000                                                                                    Airport
6,000                                      96% 
4,000
15%                                            30% 
2,000
85% 
0                                                         70% 
Electricity            Natural Gas          Liquid Fuels
Seaport GHG Tons By Source 2011-                      Airport GHG Tons By Source
2015                                             2011-2015 
25,000
25,000
20,000
20,000
Metric Tons  15,000
15,000
10,000                                                                              Metric Tons  10,000
5,000
5,000
0
0
2011        2012        2013        2014        2015
2011        2012        2013        2014        2015
Electricity      Natural Gas       Liquid Fuels
Airport           Natural Gas     Liquid
Electricity                          Fuels
8
Source: Port of Seattle MMBTU Analysis

Port has a Strong Legacy of
Energy Conservation
A Few Examples from Just the Last Three Years
Stage 2 Mechanical (2012-2014) 
Energy Savings Estimate: 12,296 MMBTU/year

Escalator Upgrades and Replacement (2013)
Energy Savings Estimate: 1,568 MMBTU/year 
Scope of work was 44 Escalators across the entire airport 
Parking Garage LED & Emergency Lighting (2013 & 2015) 
Energy Savings Estimate Emerg Lighting: 5,361 MMBTU/year
Energy Savings Estimate LED Lighting: 6,096 MMBTU/year
9

Port-wide Energy Forecast
1,400,000
Airport
Projected Load Growth
1,200,000                                                                                      Expansion
Airport IAF
Airport
NorthStar
1,000,000

2011 Baseline
800,000
Liquid Fuels
MMBTU     600,000
Natural Gas

400,000

200,000
Electricity
0
2010                   2015                   2020                   2025                   2030                   2035
10 
Source: Sustainable Airport Master Plan, Sustainable Airport Mater Plan Calculator

Port-wide GHG Emissions Forecast
40,000
Airport
35,000                                                                                     Expansion
Airport IAF                              Projected Emissions
Airport
30,000                      NorthStar

25,000
2011 Baseline
20,000
Tonnes CO2                         Liquid Fuels
15,000
Century Agenda Goal
10,000
Natural Gas
5,000
Electricity
0
2010                    2015                    2020                    2025                    2030                    2035
11 
Source: Sustainable Airport Master Plan, Sustainable Airport Mater Plan Calculator

Task 2: Strategy Identification and Screening

Step 3:
Step 1:              Step 2:
Estimate Energy
Identify        Screen By Impact &     Reduction and
Potential            Feasibility          Generation
Strategies                                Potential



12

Step 1: Identify Potential Strategies
We identified a range of conservation and renewable strategies currently undertaken
by: 
Port of Seattle
Peer Port Organizations
Port of Amsterdam / Schiphol International     Port of Rotterdam
Airport                                        Port of San Francisco / San Francisco
Port of Long Beach                             International Airport
Port of Portland                                 Port of San Diego
Private Sector Entities
Amazon                                  Google
Boeing                                      Lockheed Martin
Ikea                                              Microsoft
GE 

13

Step 2: Screen By Impact & Feasibility

Anticipated
Contribution toward
payback period
load growth & GHG
reduction goals                                    Technical, physical,
IMPACT                                     commercial
Energy use                 FEASIBILITY       availability
reduction potential
Human factors &
Renewable energy
implementation
generation potential
difficulty




14

Step 2: Impact-Feasibility Results
Renewable Natural                                 High Impact:
Gas                                       Achieves/helps with
load growth goal
Metering & Data                                     Significant energy use
System Upgrades                                    reduction
Carbon Capture
& Storage            Significant renewable
Advanced Lighting                                                              energy generation
Technologies &                                                              potentials
Controls                          Cogeneration      Geothermal
Power Purchase                      Building Retuning /
Agreement / Offsite                           Set Point                                                 High Feasibility:
Offset Project          Mechanical         Adjustments
Tidal Power           Financial: >5 year
Upgrades
payback
Advanced Building                                                                                              Technical, physical,
Envelope Systems                                                                                             commercial availability
Fleet Efficiency/                                                 Political: tenant
Optimization                                               reactions and human
Solar                                                                                                factors 
Photovoltaics              Emerging
Generation
Plug Load                    Technologies                          Fuel Cells
Management                                                                              Conservation
Fleet Vehicle
Electrification
Solar Supplement                                         Renewables
Hot Box
Controls                               for Electric Vehicles
Waste Heat            Chargers
Recovery
Small Scale                                                                                              On-site Anaerobic             Selected Strategy
Wind                                                                        Digestion of Organic
Waste                            15

Energy Conservation Strategies:
Initial Screening
Strategy                                                       Impact?     Feasible?

Advanced Building Envelope Systems                High         High

Advanced Lighting Technologies & Controls            High         High

Fleet Optimization                                     Low          High

Hot Box Controls                                      Low          High

Idle Reduction Programs                              Low         High

16

Energy Conservation Strategies:
Initial Screening
Strategy                                                       Impact?     Feasible?

Mechanical System Upgrades                       High        High

Metering & Data Acquisition System Upgrades        High*        High

Plug Load Management                            Low         High

Building Retuning / Temperature Set Point
Low       High
Adjustments 

*Metering does not reduce energy use but is a critical component of energy management that can
directly lead to energy savings and aids in renewable energy deployment.

17

Renewable Energy Strategies:
Initial Screening
Strategy                                                       Impact?     Feasible?

Emerging Generation Technologies                Unknown    Unknown

Solar Photovoltaics                                     Low          High

Solar Supplement for Electric Vehicle Chargers         Low          Low

Small Scale Wind                                     Low         High

Vehicle Electrification                                   Low          High

18

Renewable Energy Strategies:
Initial Screening
Strategy                                                       Impact?     Feasible?

Renewable Natural Gas                              High         High

Power Purchase Agreement or Offsite Offset
High        High
Project 

Waste Heat Recovery                                 Low         Med 



19

Energy Strategies
Removed from Further Consideration
Strategy                                                       Impact?     Feasible?

On-site Anaerobic Digestion of Organic Waste         Low          Low

Fuel Cells                                                 Low           Low

Carbon Capture & Storage                            High         Low

Cogeneration                                       High         Low

Geothermal                                       High         Low

Tidal Power                                           High          Low
20

Prioritizing Energy Strategies by
Level of Confidence

High                 Med                 Low
Technical analysis                Industry best                     Emerging
complete                       practice                        technology
Understand energy              Proven technology              Shows promise for
reduction potential               Understand                        potential application
Understand return                potential benefits                in Port context
on investment                     and costs at high                 Many unknowns
level                               Further exploration
Further exploration               warranted
warranted


21

Task 3: Recommended Energy Conservation Strategies
Energy Use      Relative
Reduction       Cost per       Relative
Conservation                                                   Potential        MMBTU     Cost per CO2
Confidence    Measure             Key Components                         (% Port Use)     Reduction     Reduction
Metering &       Comprehensive metering and
Data System       submetering of Port facilities          Enabling
N/A         N/A
Upgrades to SCADA (data acquisition)        strategy
Upgrades 
High                system
Mechanical       Includes metering, chiller sequencing,
building envelope, pump optimization,         2%             Med           Med
Upgrades          data center & other upgrades
Advanced        Emerging lighting technologies such
Lighting           as plasma lighting
5%       Low      Med
Technologies &     Lighting controls (automation) &
Controls            policy measures
Plug Load         Schedule-based timing controls to
automate power supply to plug-load          1%             Low           Med
Med   Management     equipment such as electronics
Temperature setpoint adjustments &
Building           policy
2%       Low       Low
Retuning           Diagnosis and correction of building
systems operations & controls
Fleet               Replacement of diesel and gasoline
powered vehicles with electric                 1%             TBD            TBD
Optimization       equivalents
Advanced 
Building            Daylighting
Low              Adaptive envelope systems such as     3%      Med     Med
Envelope           "electrochromic" (self-tinting) glass
Systems                                                                         22

Task 3: Recommended Renewable Energy Strategies
Energy       Relative      Relative
Generation      Cost per      Cost per
Renewable Energy                                              Potential       MMBTU        CO2
Confidence   Measure              Description                              (% Port Use)    Reduction    Reduction
Renewable
Natural Gas         Source RNG from landfills, wastewater
35%       Med      Med
treatment, or agricultural sources
(RNG) 
High
Solar               Install solar panels on existing
terminal, garage, and cargo areas, and          1%            Med          High
Photovoltaics        future expansion facilities
Power Purchase    Purchase wind or solar energy directly
Med  Agreement or    from third-party owned and operated
TBD        Med       Med
Offsite Offset        renewable energy generation facility,
Project               on or off Port property
Microhydroelectric generators that
Emerging          power from harvested rainwater flows
Low   Generation      Kinetic tiles that generate power from    TBD     TBD     TBD
Technologies         vibrations such as foot and vehicle
traffic



23

Task 3: Impact of Strategies on 
Century Agenda Goal for Energy
1,400,000
Airport
Expansion     Projected Load Growth
1,200,000                                              Airport IAF
Airport
NorthStar                                                     Renewables
1,000,000

2011 Baseline
800,000                                                                                                                                          Conservation
Liquid Fuels
MMBTU     600,000
Natural Gas

400,000

200,000
Electricity
0
2010                   2015                   2020                   2025                   2030                   2035
24 
Source: Sustainable Airport Master Plan, Sustainable Airport Mater Plan Calculator

Task 3: Impact of Energy Strategies on
Century Agenda Goal for GHG Emissions
40,000
Airport
35,000                                                                                      Expansion
Airport IAF                              Projected Emissions
Airport
30,000                       NorthStar
Renewables
25,000
2005 Baseline
20,000
Tonnes CO2                          Liquid Fuels
15,000                                                                                                                                              Conservation
Century Agenda Goal
10,000
Natural Gas
5,000
Electricity
0
2010                    2015                    2020                    2025                    2030                    2035
25

Key Findings
The Port's energy demand and GHG emissions have remained constant over the
past 5 years. However, our forecast show if we do nothing, our energy will
increase by 46% and GHGs by 59%, respectively, over the next 25 years due to
airport expansion.
The Committee finds that the Port will be able to meet the Century Agenda
energy and GHG goals through a combination of efficiency and renewable fuel
strategies, even in light of the projected growth in demand. 
According to our analysis, energy conservation strategies can meet about 25%
of the projected increase in energy demand.
The remaining 75% of our increased energy demand must be met with
renewable fuels.
Renewable Natural Gas is an essential component to our strategy, both in
terms of energy load growth and GHG reductions, but is a high-risk strategy.
Solar offers limited reductions to both energy and GHG projections, but may
have other sustainability benefits.

26

Key Findings Cont'd 
Much of existing metering infrastructure is outdated and inconsistent.
Low-cost conservation opportunities remain, but cannot achieve our goals
alone.
Payback thresholds for higher cost energy conservation investments are not
aligned with long term goals.
Our energy demand forecasts assume future facilities are built to highest green
standards, including going beyond current energy efficiency standards.
The Committee opted not to include Port electricity used for electric GSE and PC
air, because increased load growth is minimal when compared to resulting GHG
reductions (see following slide). 
Tenant energy use is significant, but metering infrastructure is inconsistent and
in some cases entirely lacking.

27

Case In Point: Airport Gate Electrification 
Every gate at the Airport is equipped with remote ground power connections and preconditioned
air supplied from a central plant
Aircraft parked at gates use power and conditioned air provided by the Airport instead
of their Auxiliary Power Units, which run on jet-fuel
While Port-owned emissions increase slightly, the resulting overall emission
reductions are significant

0.7%
Increased Port Energy                    Decreased Tenant Jet Fuel Use
Use
Equivalent of 70% decrease in Port-
0.7% GHG increase                   owned GHG emissions
324 tonnes CO2                    14,000 tonnes CO2
70% 


28

Final Recommendations
Pursue RNG opportunities as a critical element of our energy and GHG
strategy, with second phase to coincide with Airport expansion
Align payback thresholds for energy investments (both O&M and capital)
with the planning horizons for the Century Agenda and Airport Master
Plan, and ensure life cycle costs and nonfinancial benefits are considered
Ensure future facilities are built to highest green standard; building to a
lower standard will increase our load growth
Continued focus on conservation, such as through the Stage 3 Mechanical 
Conservation Project, will reduce our reliance on hydroelectricity and will
free up clean energy capacity for other uses
Enhanced metering will assist in prioritization of energy conservation
opportunities for both Port and tenants
Establish a strategy for emerging technologies to better evaluate viability
for Port adoption
29

Appendix: Background Data for Energy Strategies
Conservation Measure         Metering & Data Acquisition System Upgrades 
Comprehensive metering and submetering of Port facilities to enable measurement &
Key Components               verification of energy conservation strategies
Upgrades to SCADA (data acquisition) system

Energy Use Reduction           Does not lead to direct energy savings, but is necessary to enable participation in a wide
range of industry best practices such as load curtailment, demand response, and
Potential (MMBTU and % of
measurement and verification of conservation programs.
total Port Energy Use)            Will assist in prioritization of energy conservation opportunities for both Port and tenants. 
Current state and needs relative to metering and submetering are documented in the
Port-Specific                     Sustainable Airport Master Plan (Section 6.12), the Cardno Report (Section 5), and Phase
3 University Mechanical Energy Conservation presentation.
Supporting Analysis
Each of these documents presents recommendations for enhanced metering and
submetering.
Scale of implementation required to achieve desired technical consistency may be
Feasibility Constraints
prohibitive
Enhanced metering capabilities will allow the Port to recover its fair share for utility costs
incurred by tenants, which are currently underrepresented through existing metering
infrastructure.
Recommendations
This opportunity cost should be factored in payback analysis for this measure.
Explore partnership opportunities with BPA and SCL to support advanced metering
technologies


30

Appendix: Background Data for Energy Strategies
Conservation Measure         Mechanical Upgrades 
Includes metering, chiller sequencing, building envelope upgrades, pump optimization,
Key Components
data center & other upgrades
Energy Use Reduction
20,449 MMBTU reduction in Port energy
Potential (MMBTU and % of                                            2% reduction in Port energy use
use 
total Port Energy Use)
Energy Use Reduction           Internal Airport reports indicate electricity can be reduced by 2,017 MMBTU and natural
Potential - Assumptions          gas can be reduced by 18,432 MMBTU
$4.95M (see Option 2 of Stage 3 Mechanical Energy Conservation Presentation)
$242 / MMBTU,  $4,994 / metric ton of CO2
Cost Information
Port is eligible for rebates and incentives by BPA and SCL to offset cost of lighting
upgrades and other energy efficiency projects
Port-Specific
Mechanical Energy Conservation Stage 1-3 Reports
Supporting Analysis

Simple payback terms do not appear to be competitive on basis of energy efficiency alone,
Feasibility Constraints
but some mechanical equipment past useful life

Pursue Stage 3 Mechanical Energy Conservation project
Recommendations
Continue to identify equipment replacement opportunities

31

Appendix: Background Data for Energy Strategies
Conservation Measure         Advanced Lighting Technologies & Controls 
Emerging lighting technologies such as plasma lighting
Key Components
Lighting controls (automation) & policy measures
Energy Use Reduction
45,368 MMBTU reduction in Port energy
Potential (MMBTU and % of                                            4% reduction in Port energy use
use 
total Port Energy Use)
Energy Use Reduction           Facilities team estimates this initiative can reduce the lighting load by 20% at the Airport
and 10% at the Seaport
Potential - Assumptions
Lighting load was assumed to be 50% of total 2014 electricity
Port is eligible for rebates and incentives by BPA and SCL to offset cost of lighting
Cost Information
upgrades and other energy efficiency projects
Case Study Examples & Best      Berkeley National Lab Meta-Analysis of Energy Savings From Lighting Controls in
Commercial Buildings
Practice Data
California Energy Commission, Achieving Energy Efficient Lighting in California, 2015
Technologies continue to evolve
Feasibility Constraints           Many of Port's operations are 24/7, and many spaces are tenant controlled or directly
impact tenants
Institute lighting controls and policy measures in administrative areas
Explore opportunities for lighting controls in public spaces during off-peak periods
Recommendations
Identify funding to continue LED retrofits and lighting control projects
Continue to track developments in emerging technologies such as plasma lighting

32

Appendix: Background Data for Energy Strategies
Conservation Measure         Plug Load Management 
Schedule-based timing controls to automate power supply to plug-load equipment such
Key Components
as electronics
Energy Use Reduction
1,762 MMBTU reduction in Port energy          1% reduction in Port energy use
Potential (MMBTU and % of
use 
total Port Energy Use)
Energy Use Reduction           Facilities team estimates this initiative can reduce the plug load by 5% at the Airport
Potential - Assumptions          The plug load was assumed to be 8% of total electricity

Cost Information                Most plug load strategies are no or low cost
GSA Public Building Service: Plug Load Control
Case Study Examples & Best      National Renewable Energy Laboratory: Assessing and Reducing Plug and Process Loads
Practice Data                     in Office Buildings
New Buildings Institute: Plug Load Best Practices Guide
Many of Port's operations are 24/7, and many spaces are tenant controlled or directly
impact tenants
Feasibility Constraints
Growth planned to provide increased access to electronics charging for Airport
passengers
Institute plug management program in administrative areas
Recommendations
Explore opportunities for plug load management in public spaces during off-peak periods

33



Appendix: Background Data for Energy Strategies
Conservation Measure         Building Retuning 
Temperature setpoint adjustments & policy
Key Components
Diagnosis and correction of operational problems with building systems and their controls 
Energy Use Reduction
18,901 MMBTU reduction in Port energy
Potential (MMBTU and % of                                            2% reduction in Port energy use
use 
total Port Energy Use)
Energy Use Reduction           Facilities team estimates this initiative can reduce electrical HVAC use by 5%, and natural
gas HVAC use by 15%
Potential - Assumptions
HVAC load is assumed to be 21% of total electricity and 23% of total natural gas
Airport has budgeted $100,000 per year for this type of work which equates to:
$5 / MMBTU,  $136 / metric ton of CO2
Cost Information
Some building retuning measures may be eligible for rebates and incentives from BPA and
SCL
Case Study Examples & Best      US Department of Energy: Energy Savings Modeling of Standard Commercial Building
Practice Data                     Retuning Measures: Large Office Buildings 

Policy measure is needed in order to ensure sustainability/acceptance of temperature
Feasibility Constraints
setpoint changes

Pursue temperature setpoint adjustments as soon as practicable
Recommendations
Continue pursuit of retro-commissioning measures

34

Appendix: Background Data for Energy Strategies
Conservation Measure         Fleet Optimization & Electrification 

Key Components               Replacement of diesel and gasoline powered vehicles with electric equivalents

Energy Use Reduction
Potential (MMBTU and % of      4,735 MMBTU Potential Reduction          1% of total Port Energy Use
total Port Energy Use)
Energy Use Reduction           Discussions have indicated that a 15% reduction in MMBTU use from diesel and gasoline
Potential - Assumptions          powered vehicles is possible with fuel efficiency and additional electric vehicles

Cost Information                TBD

Case Study Examples & Best
Practice Data

Feasibility Constraints            Operational considerations of specific vehicle types may be a concern for some staff

Recommendations             Continue to pursue fleet optimization activities Port-wide

35

Appendix: Background Data for Energy Strategies
Conservation Measure         Advanced Building Envelope Systems
Daylighting
Key Components
Adaptive envelope systems such as "electrochromic" (self-tinting) glass
Energy Use Reduction
27,521 MMBTU reduction in Port energy
Potential (MMBTU and % of                                            2% reduction in Port energy use
use 
total Port Energy Use)
Energy Use Reduction
Facilities team estimates this initiative can reduce total electric load by 5%
Potential - Assumptions

Cost Information

Case Study Examples & Best
Practice Data

Feasibility Constraints            Glint and glare considerations may be important for particular solar glass technolgies

As new facilities come online, evaluate potential for incorporation of electrochromic glass
Recommendations             and other advanced envelope technologies
Ensure energy payback evaluations are taken into account

36

Appendix: Background Data for Energy Strategies
Renewable Measure          Renewable Natural Gas (RNG) 

Key Components               Source RNG from landfills, wastewater treatment, or agricultural sources

Energy Generation Potential
(MMBTU and % of total Port     350,000 MMBTU Potential Reduction         30% of total Port Energy Use
Energy Use)
Energy Use Reduction           Based on most recent discussions, local biogas production facility indicates they can
Potential - Assumptions          steadily supply 350,000 MMBTU of renewable natural gas to the Airport 

Port-Specific                    Airport has conducted multiple in-house explorations of RNG deals
Supporting Analysis             2 landfill operators have provided potential costs

$7.50-$14/MMBTU
Cost Data
$100-$200/tonne CO2 

Feasibility Constraints            Pipeline and infrastructure costs are potentially prohibitive

Pursue RNG opportunities as a critical element of our energy & GHG strategy, with second
Recommendations
phase to coincide with Airport expansion

37




Appendix: Background Data for Energy Strategies
Renewable Measure          Solar Photovoltaics 
Install solar panels on existing terminal, garage, and cargo areas, and future expansion
Key Components
facilities, either through power purchase agreement or Port-owned project
Energy Generation Potential
(MMBTU and % of total Port     1,922 MMBTU Potential Reduction           1% of total Port Energy Use
Energy Use)
Energy Use Reduction           Solar PV panels at the Airport's T2 expansion and at the Seaport are assumed to generate
Potential - Assumptions          1,917 MMBTU and 5 MMBTU respectively
Cost Data                       $1,000 / MMBTU, $144,000 / tonne CO2
SAMP Task 6.12 includes an evaluation of the solar generation potential using a
Port-Specific                     RETScreen V4 simulation for existing and proposed expansion roof areas. The simulation
used modern PV panels in Seattle, based on the optimal installation angle. The analysis
Supporting Analysis
assumes a roof available area of 65% for terminals and 90% available for the garage
(assuming solar canopies).
Case Study Examples, Best       Airport Cooperative Research Program (ACRP) Report 108: Guidebook for Energy
Facilities Compatibility with Airports and Airspace 
Practice Data, and Other
Port of San Francisco, Unified Port of San Diego, San Diego International Airport, Port of
Resources                      Amsterdam, Schiphol International Airport
The amount of power generated by installing PV on both existing and future facilities
Feasibility Constraints            would only power a fraction of the Port's electrical requirements 
See FAA Technical Guidance for Evaluating Selected Solar Technologies on Airports 
Pursue smaller-scale PV installations on existing and new facilities as opportunities
Recommendations
emerge

38








Appendix: Background Data for Energy Strategies
Renewable Measure          Power Purchase Agreement or Offsite Offset Project 
Purchase wind or solar energy directly from third-party owned and operated renewable
Key Components
energy generation facility, on or off Port property
Energy Generation Potential
(MMBTU and % of total Port     Scalable as needed
Energy Use)
Energy Use Reduction
Assumes Eastern Washington site
Potential - Assumptions
$144,000 / metric ton of CO2
Cost Data
$45M wind farm = 1,248 tonnes CO2
Port-Specific
Airport has conducted in-house evaluation of offset projects
Supporting Analysis
Case Study Examples, Best      Google's Green PPAs 
Practice Data, and Other         Multiple airport projects, including Denver International Airport, Indianapolis
Resources                      International Airport, Port of Portland 
Feasibility Constraints            Consider reviewing revenue diversion issues

Recommendations             RECs can easily offset any shortfalls in goal achievement

39

Appendix: Background Data for Energy Strategies
Renewable Measure          Onsite Micro-Hydroelectric Power
Emerging technology that produces power from harvested rainwater flows
Key Components
Potential for smaller scale, passenger-facing, public-private demonstration program
Energy Generation Potential
(MMBTU and % of total Port     TBD
Energy Use)
Energy Use Reduction
TBD
Potential - Assumptions

Port-Specific
N/A
Supporting Analysis
Case Study Examples, Best
Practice Data, and Other         N/A
Resources

Feasibility Constraints            TBD

Recommendations             Continue to track development of this technology for potential application

40

Appendix: Background Data for Energy Strategies
Renewable Measure          Kinetic Generators 
Emerging technology that produces power from vibrations such as foot and vehicle traffic
Key Components
Potential for smaller scale, passenger-facing, public-private demonstration program
Energy Generation Potential
(MMBTU and % of total Port     TBD
Energy Use)
Energy Use Reduction
TBD
Potential - Assumptions

Port-Specific
N/A
Supporting Analysis
Case Study Examples, Best
Practice Data, and Other         N/A
Resources

Feasibility Constraints            TBD

Recommendations             Continue to track development of this technology for potential application

41

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