E i E t idEnergize EastsideComm nit Ad isor Gro p Meeting #2Community Advisory Group Meeting #2

Senior Project Manager,

Leann Kostek

j gPuget Sound Energy

February 12, 2014

Information requested at meeting #1 Energy split for plug loads Capacity increase the project would bring in p y p j g

2018 Total population benefit from project Points of flexibility in design New technology alternativesgy Battery storage Integrated Resource Plan (IRP)g ( )

2

Information requested at meeting #1

Energy split for plug loads Capacity increase the project would bring in p y p j g

2018 Total population benefit from projectp p p j Points of flexibility in design New technology alternativesgy Battery storage Integrated Resource Plan (IRP)Integrated Resource Plan (IRP)

3

Information requested at meeting #1

Energy split for plug loads Capacity increase the project would bring p y p j g

in 2018 Total population benefit from projectp p p j Points of flexibility in design New technology alternativesgy Battery storage Integrated Resource Plan (IRP)Integrated Resource Plan (IRP)

4

Information requested at meeting #1

Energy split for plug loads Capacity increase the project would bring in p y p j g

2018 Total population benefit from projectp p p j Points of flexibility in design New technology alternativesgy Battery storage Integrated Resource Plan (IRP)Integrated Resource Plan (IRP)

5

Information requested at meeting #1

Points of flexibility in design Span lengthp g Pole height Pole diameterPole diameter Pole configuration Pole spotting/placementPole spotting/placement Pole material/finish

6

Information requested at meeting #1

Energy split for plug loads Capacity increase the project would bring in p y p j g

2018 Total population benefit from projectp p p j Points of flexibility in design New technology alternativesgy Battery storage Integrated Resource Plan (IRP)Integrated Resource Plan (IRP)

7

Information requested at meeting #1

Battery storage Energy storage pilot projects:gy g p p j 0.5 MW / 1.0 Mwh battery

• $2.9 Million• Target completion Q4 2014

2 MW / 4.4 Mwh battery• $12 Million• Completion date TBD• Completion date - TBD

8

Information requested at meeting #1

Integrated Resource Plan (IRP) Filed most recent IRP in May 2013y Evaluates generation to meet customer

needs 20 years into futurey Typically transmission projects to address

customer demand aren’t mentioned

9

Questions from meeting #1

Is the I-90 corridor an option? Could existing Seattle City Light (SCL) or g y g ( )

Bonneville Power Administration (BPA) lines provide the needed capacity or route for the project?

If existing/potential industrial users conserve ill th t h l t th d?more, will that help meet the need?

10

11

PUBLIC COMMENTPUBLIC COMMENT

11

E i E t idEnergize EastsideSol tion st d and ro te segmentsSolution study and route segments

Senior Project Manager,

Leann Kostek

Deputy Project Manager,

Jens Nedrudj g

Puget Sound EnergyDeputy Project Manager, Puget Sound Energy

Andy Bury

Tetra Tech

February 12, 2014

Presentation overview

1. Review the problem2. Overview of solution selection processp3. How PSE identified and narrowed the route

segmentsg4. Introduction to project route segments

13

Why is Energize Eastside needed?

Growth is straining the Eastside’s existing transmission systemtransmission system

Conservation alone is not enough to meet the challengechallenge

We need to act now Upgrades will power the Eastside’s growth intoUpgrades will power the Eastside s growth into

the future

14

How do we meet the need?

Solution study objective: Address transmission capacity deficiency on the p y yEastside that develops in late 2017

15

Solution selection processWhat are the potential approaches to meet the Eastside’s electricity needs?

Wh t h id hWhat approaches provide enough electricity to meet the Eastside’s needs?

What solutions best deliver electricit to the Eastside?electricity to the Eastside?

16

Solution selection processWhat solutions can PSE move forward with?

Where could PSE build a solution?

What does the public recommend?What does the public recommend?

17

Solution selection processWhat are the potential approaches to meet the Eastside’s electricity needs?

Th t b i t d f i l ti tThe team brainstormed four main solution types: Conservation (demand-side reduction)

L l ti Local generation Transformer-only addition Transmission lines plus transformer

18

Solution selection processWhat approaches provide enough electricity to meet the Eastside’s needs?

180 L d R d ti N d d

140

160

180 Load Reduction Needed(Higher Load Growth Scenario)

80

100

120

Load Reduction Needed(100% Conservation Load Scenario)

20

40

60

0

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

2026

2027

YearConservation Potential Demand Reduction Potential Demand Growth Potential

19

Conservation Potential Demand Reduction Potential Demand Growth Potential

Solution selection processWhat approaches provide enough electricity to meet the Eastside’s needs?

20

Solution selection processWhat approaches provide enough electricity to meet the Eastside’s needs?

21

Solution selection processWhat approaches provide enough electricity to meet the Eastside’s needs?

22

Solution selection processWhat solutions best deliver electricity to the Eastside?

23

Powerflow analysis

24

Solution selection processWhat solutions best deliver electricity to the Eastside?

Studies were performed on 27 alternatives Studies were performed on 27 alternatives PSE evaluated each alternative for: System performance System performance Flexibility

L it Longevity Reduced 27 alternatives down to 12 solutions

25

Route selection processWhat solutions can PSE move forward with?

26

Solution selection processWhere could PSE build a solution?

27

Solution selection process

Overview of route segment selection Define interconnections and study areaDefine interconnections and study area Collect Geographic Information Systems

(GIS) data and professional input( ) p p Identify corridors and alternative routes

with Linear Routing Tool Compare route weightings Refine routes interactivelyy Discuss routes with the public and

agencies

28

g

Solution selection process

Public land ownershipL d

Examples of collected data:

Land use Public rights-of-way Wildlife Wildlife Protected vegetation Threatened and

endangered species Environmentally critical

areas Topography Historical resources

29

Historical resources

Solution selection process

Data preparation Prepare GIS data for analysisp y Quality control

30

Solution selection process

Identifying corridors and routes Assign values (weightings) to each dataAssign values (weightings) to each data

layer Linear Routing Tool identifies corridors andLinear Routing Tool identifies corridors and

routes Create suitability grid Identify linear routes

31

How the layers work

Opportunity Opportunity Areas

Constraints (avoidance areas)

32

Routing Tool creates suitability gridArterial corridorsOpportunity

Slope stability Avoid

Land useAreas of opportunity and avoidance

Summed suitability gridAvoid red, use green

33

Avoid red, use green

Solution selection process

Example suitability gridsuitability grid

34

How data changes routes

Land use Land use + Land use +

35

Land use Land use Barriers around structures

Land use Barriers around structures +Wetlands

Potential route segments

PLACEHOLDER: MAP OF YELLOW ROUTES

36

Route selection process

What does the public recommend?

37

QUESTIONS?QUESTIONS?

38

39

ROUTE SEGMENTROUTE SEGMENT CONVERSATION

39

Sub-Area Committee process

40

Sub-area boundaries

41

42

EVALUATION PROCESSEVALUATION PROCESS

42

How this process will work

Multi-Objective Decision Analysis Step 1: Determine community values for p y

evaluation Step 2: Weight community valuesp g y Step 3: Score each option using community

values Step 4: Discuss and validate numerical results Step 5: Consensus recommendationp

43

Next steps for the advisory group

Participate in Sub-Area Committee workshops to develop sub-area route segment combinations for full advisory group discussion

Develop potential route options based on input from Sub-Area Committees

44

Upcoming activitiesSub-Area Committee MeetingsNorth sub-area:

W k h #1 M 19 2014•Workshop #1: Mar. 19, 2014 •Workshop #2: Apr. 2, 2014 •Meeting: Apr. 16, 2014

Central sub-area:•Workshop #1: Mar. 12, 2014 •Workshop #2: Mar 26 2014•Workshop #2: Mar. 26, 2014•Meeting: Apr. 9, 2014

South sub-area:South sub area:•Workshop #1: Mar. 13, 2014•Workshop #2: Mar. 27, 2014•Meeting: Apr 10 2014

45

Meeting: Apr. 10, 2014

Upcoming activitiesNext Community Advisory Group meeting• Wednesday, April 30 from 5:30 p.m. to 8:30

p.m., location to be determined

46

Contact usPSE Contact:

Leann Kostek, Senior Project Manager

Sta in to chStay in touch:pse.com/energizeeastsideenergizeeastside@pse comenergizeeastside@pse.com800-548-2614

47

THANK YOU!THANK YOU!

48