Powering Growth, Delivering Value
Investor Meetings l September 14, 2016
POWERING GROWTH
DELIVERING VALUE
Powering Growth, Delivering Value2
FORWARD LOOKING STATEMENTS
This presentation contains forward-looking statements based on current expectations, including statements regarding our earnings
guidance and financial outlook and goals. These forward-looking statements are often identified by words such as “estimate,”
“predict,” “may,” “believe,” “plan,” “expect,” “require,” “intend,” “assume” and similar words. Because actual results may differ
materially from expectations, we caution you not to place undue reliance on these statements. A number of factors could cause future
results to differ materially from historical results, or from outcomes currently expected or sought by Pinnacle West or APS. These
factors include, but are not limited to: our ability to manage capital expenditures and operations and maintenance costs while
maintaining high reliability and customer service levels; variations in demand for electricity, including those due to weather
seasonality, the general economy, customer and sales growth (or decline), and the effects of energy conservation measures and
distributed generation; power plant and transmission system performance and outages; competition in retail and wholesale power
markets; regulatory and judicial decisions, developments and proceedings; new legislation, ballot initiatives and regulation, including
those relating to environmental requirements, regulatory policy, nuclear plant operations and potential deregulation of retail electric
markets; fuel and water supply availability; our ability to achieve timely and adequate rate recovery of our costs, including returns on
and of debt and equity capital investments; our ability to meet renewable energy and energy efficiency mandates and recover related
costs; risks inherent in the operation of nuclear facilities, including spent fuel disposal uncertainty; current and future economic
conditions in Arizona, including in real estate markets; the development of new technologies which may affect electric sales or
delivery; the cost of debt and equity capital and the ability to access capital markets when required; environmental and other
concerns surrounding coal-fired generation, including regulation of greenhouse gas emissions; volatile fuel and purchased power
costs; the investment performance of the assets of our nuclear decommissioning trust, pension, and other postretirement benefit
plans and the resulting impact on future funding requirements; the liquidity of wholesale power markets and the use of derivative
contracts in our business; potential shortfalls in insurance coverage; new accounting requirements or new interpretations of existing
requirements; generation, transmission and distribution facility and system conditions and operating costs; the ability to meet the
anticipated future need for additional generation and associated transmission facilities in our region; the willingness or ability of our
counterparties, power plant participants and power plant land owners to meet contractual or other obligations or extend the rights for
continued power plant operations; and restrictions on dividends or other provisions in our credit agreements and ACC orders. These
and other factors are discussed in Risk Factors described in Part I, Item 1A of the Pinnacle West/APS Annual Report on Form 10-K for
the fiscal year ended December 31, 2015, which you should review carefully before placing any reliance on our financial statements,
disclosures or earnings outlook. Neither Pinnacle West nor APS assumes any obligation to update these statements, even if our
internal estimates change, except as required by law.
Powering Growth, Delivering Value3
• Consolidated earned ROE more than 9.5% (weather-normalized) through 2016
• Annual dividend growth target of 5%, subject to declaration at Board of Director’s discretion
• Strong credit ratings and balance sheet
• Rate base growth of 6-7% (2014-2018); investing in a portfolio that is flexible, responsive, reliable
and cost-effective
Financial Strength
• Arizona’s long-term growth fundamentals remain largely intact, including population growth, job
growth and economic development
Leverage to Economic Growth
• Top quartile ratings in Customer Satisfaction, Reliability and Safety
• APS operates the Palo Verde Nuclear Generating Station, the largest nuclear plant in the United States
• Disciplined cost management
Operational Excellence
VALUE PROPOSITION
• At the forefront of utilities studying and deploying advanced infrastructure to enable reliable and
cost-efficient integration of emerging technologies into the grid and with customers
Modern Grid
• Working with Arizona Corporation Commission and key stakeholders to modernize rates
Proactively Addressing Rate Design
We are executing on our financial and operational objectives …
… while also advocating to ensure Pinnacle West and Arizona have a sustainable energy future
Powering Growth, Delivering Value4
FINANCIAL OUTLOOK Key Factors & Assumptions as of August 2, 2016
Assumption Impact
Retail customer growth • Expected to average about 2-3% annually
• Modestly improving Arizona and U.S. economic conditions
Weather-normalized retail electricity
sales volume growth
• About 0.5-1.5% after customer conservation and energy efficiency and
distributed renewable generation initiatives
Assumption Impact
AZ Sun Program • Additions to flow through RES until next base rate case
• First 50 MW of AZ Sun is recovered through base rates
Lost Fixed Cost Recovery (LFCR) • Offsets 30-40% of revenues lost due to ACC-mandated energy efficiency and
distributed renewable generation initiatives
Environmental Improvement
Surcharge (EIS)
• Assumed to recover up to $5 million annually of carrying costs for government-
mandated environmental capital expenditures
Power Supply Adjustor (PSA) • 100% recovery as of July 1, 2012
Transmission Cost Adjustor (TCA) • TCA is filed each May and automatically goes into rates effective June 1
• Beginning July 1, 2012 following conclusion of the regulatory settlement,
transmission revenue is accrued each month as it is earned.
Four Corners Acquisition • Four Corners rate increase effective January 1, 2015
Potential Property Tax Deferrals (2012 retail rate settlement): Assume 60% of property tax increases relate to tax
rates, therefore, will be eligible for deferrals (Deferral rates: 50% in 2013; 75% in 2014 and thereafter)
Gross Margin – Customer Growth and Weather (2016-2018)
Gross Margin – Related to 2012 Retail Rate Settlement
Outlook Through 2016: Goal of earning more than 9.5% Return on Equity (earned Return on Equity based on average
Total Shareholder’s Equity for PNW consolidated, weather-normalized)
Powering Growth, Delivering Value5
$263 $220 $224
$288
$66 $77
$235 $114 $44
$227
$201
$103
$58
$107
$1
$1 $201
$122
$217
$139
$340
$359
$346
$398
$85
$93
$83
$81
2015 2016 2017 2018
CAPITAL
EXPENDITURES
Capital expenditures are funded
primarily through internally
generated cash flow
($ Millions) $1,205
$1,307
Other
Distribution
Transmission
Renewable
Generation
Environmental(1)
Traditional
Generation
Projected
$1,124
New Gas
Generation(2)
$1,057
• The table does not include capital expenditures related to 4CA’s 7% interest in Four Corners Units 4 and 5 of
$3 million in 2015, $30 million in 2016 and $25 million in 2017.
• 2016 – 2018 as disclosed in Second Quarter 2016 Form 10-Q.
(1) Includes Selective Catalytic Reduction controls at Four Corners with in-service dates of Q4 2017 (Unit 5) and Q1 2018 (Unit 4)
(2) Ocotillo Modernization Project: 2 units scheduled for completion in Q4 2018, 3 units schedule for completion in Q1 2019
Powering Growth, Delivering Value6
RESOURCE PLANNING
ACC adopted revised IRP filing
schedule; final IRP due April 2017
to allow time to consider impacts
of Clean Power Plan
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
2017 2019 2021 2023 2025 2027 2029 2031
Existing Owned Resources
Existing
Contracts
Resource Planning
Requirement
Load Requirement
Including Reserves
MW
26%
25%
26%
11%
12%
23%
2016
Gas
Coal
Nuclear
RE + DE
EE
Composition of Energy Mix by Resource*
36%
14%18%
18%
14%2031
Note: RE = Renewable Energy; DE = Distributed Energy; EE = Energy Efficiency
*Data shown is based on the 2017 Preliminary Integrated
Resource Plan filed March 1, 2016.
Powering Growth, Delivering Value7
ECONOMIC
INDICATORS
Arizona and Metro Phoenix remain
attractive places to live and do
business
Single Family & Multifamily Housing Permits
Maricopa County
Job Growth (Total Nonfarm) – Metro Phoenix
0.0%
2.5%
5.0%
'11 '12 '13 '14 '15 '16
Metro Phoenix
U.S.
YoY Change Construction, business services,
financial services and healthcare
adding jobs at a rate above 4%
Phoenix ranked 1st in tech industry job
growth over last 2 years (tied with San
Francisco)
- CBRE September 2015
Arizona ranked 1st for projected job
growth
- Forbes September 2015
E
0
10,000
20,000
30,000
40,000
'07 '08 '09 '10 '11 '12 '13 '14 '15 '16
Single Family Multifamily
Q2
Metro Phoenix growth rate 3rd fastest
among top 15 metro areas
- U.S. Census Bureau March 2016
Housing construction on pace to have
its best year since 2007
Powering Growth, Delivering Value8
THE GRID IS EVOLVING – INCREASINGLY
DYNAMIC AND COMPLEX
Drivers for
Change
– Traditional grid built for
one-way flow
– Technology advancements
(storage, home energy
management)
– Changing customer needs and
demands
– Proliferation of distributed
solar energy, which does not
align with peak
The Modern
Grid
– New technologies to enable
two-way flow
– Proactive vs. reactive
operations and maintenance
– Modern rate structure
– New ways to interact with
customer
– Mobility for our field personnel
– Smarter, more flexible real-
time system operations
– Support consumer products
and services
– Addresses cybersecurity
APS Laying
Foundation for
the Future
– Solar R&D initiatives
• Solar Partner Program
• Solar Innovation Study
– Smart meters fully deployed
– Investing in peaking capacity upgrades
(Ocotillo)
– Evaluating storage
• Battery pilot investments
• Microgrids (Marine Corps Air Station Yuma)
– Software upgrades for distribution
operations and customer service
– Ensuring our people have the relevant
skill sets
• Grid stability, power quality and reliability remain the core of a sustainable electrical system
• APS is at the forefront of utilities designing and planning for the electric grid
• Rates need to be modernized to enable advanced technologies and to reflect the true cost of service
Powering Growth, Delivering Value
2016 APS RATE CASE
Powering Growth, Delivering Value10
2016 APS RATE CASE APPLICATION
• Filed June 1, 2016
• Propose new rates go into effect on July 1, 2017
• Docket Number: E-01345A-16-0036
• Additional details, including filing, can be found at
http://www.azenergyfuture.com/rate-review/
Procedural Schedule
Staff and Intervenor Direct Testimony (ex rate design)
Staff and Intervenor Direct Testimony (rate design)
APS Rebuttal Testimony
Staff and Intervenor Surrebuttal Testimony
APS Rejoinder Testimony
Prehearing Conference
Proposed Hearing Commencement Date
December 21, 2016
January 27, 2017
February 17, 2017
March 10, 2017
March 17, 2017
March 20, 2017
March 22, 2017
Powering Growth, Delivering Value11
2016 RATE CASE
KEY FINANCIALS
APS has requested a rate
increase to become effective
July 1, 2017
Test year ended December 31, 2015
Total Rate Base - Adjusted $8.01 Billion
ACC Rate Base - Adjusted $6.77 Billion
Allowed Return on Equity 10.5%
Capital Structure
Long-term debt 44.2%
Common equity 55.8%
Base Fuel Rate (¢/kWh) 2.9882
Post-test year plant period 18 months
Overview of Rate Increase ($ in Millions)
Total stated base rate increase (inclusive of existing adjustor transfers) $ 433.4 15.00%
Less: Transfer to base rates of various adjustors already in effect (267.5) (9.26)
Net Customer Bill Impact $ 165.9 5.74%
Powering Growth, Delivering Value12
2016 RATE CASE
KEY FINANCIALS
APS has requested a rate
increase to become effective
July 1, 2017
Overview of Rate Increase ($ in Millions) – Key Components
Post-Test Year Plant Additions $ 98.1
Fair Value Increment 51.9
ROE Increase from 10.0% to 10.5% 29.3
Increase due to Changes in Depreciation Schedules 81.4
Decrease Fuel and Purchased Power over Base Rates (61.7)
Decrease in Other Costs (33.1)
Total Base Rate Increase $ 165.9
Powering Growth, Delivering Value13
Focus on
Clean Energy
Focus on
Customers
Focus on
Innovation
Focus on
Sustainability
• Generate power from
diverse portfolio and
support environmental
improvements
• Create sustainable path
forward for flexible
resource portfolio
• Optimize customer
service and reliability
• Better align rates with
the true cost of service
• Provide rate gradualism
and bill stability for
customers by managing
overall rate trajectory
and the transition to
new rate design
• Prudently invest in new
technologies
• Implement new
customer information
system to enable
adaptable customer
programs and rates
• Modernize rates to
enable advanced
technologies and grid
services
• Achieve an earned
return that provides for
financial stability and
allows for sustainable
investments in Arizona
• Maintain structure of
constructive regulatory
support
• Improve concurrent cost
recovery of plant
investments
2016 RATE CASE
FRAMEWORK
“A Bridge to the Future”
Rate Case Objectives
Powering Growth, Delivering Value14
2016 RATE CASE SUMMARY
Focus on
Clean Energy
Focus
on Customers
Focus
on Innovation
Focus on
Sustainability
Ocotillo Modernization
Project
• Requesting cost deferral
order from in-service
dates in 2018 and 2019 to
effective date of rates in
next rate case
Four Corners Selective
Catalytic Reduction (SCR)
Equipment
• Requesting cost deferral
order from in-service
dates to incorporation of
the SCR costs in rates
using a step-increase
beginning in 2019
Residential Rate Design
Modernization
• Transition to 3-part
residential rate structure
including a variable
(energy kWh) charge, a
fixed (basic service)
charge, and a demand
charge
• Modify net energy
metering to differentiate
compensation between
energy consumed on site
and exported energy
General Service
(Business)
• Retire AG-1; introduce
aggregation discount for
customers with multiple
sites, a new rate for
customers with extra high
load factors and a
economic development
rate
Solar Partners Programs
• Installing 10 MW of
APS-owned residential PV
systems on 1,600 homes
with advanced inverters,
including 4 MW of battery
storage
Red Rock Solar
Generating Station
• 40 MW utility-scale solar
facility (post-test year
plant)
Microgrid Projects
• Two microgrids in service
by 4Q16; partnered with
Marine Corps Air Station
Yuma and Aligned Data
Center in Phoenix
Power Supply Adjustment
• Include environmental
chemical costs,
generation-related water
costs, and energy storage
products from 3rd party
providers
Environmental
Improvement Surcharge
• Increase from ~$5M total
cap to $10M year-over-
year cap
Depreciation Rate
Changes
• Change depreciation life
schedules including Cholla
Units 1 & 3, Ocotillo Units
1 & 2, Yucca Units 1-4
and AMI meters
Powering Growth, Delivering Value15
APS COST OF SERVICE
Appropriate to place residential
solar customers into a unique
sub-category of customers
108%
86%
Percent of Cost to Serve*
Residential
Solar
Customers
Demand
Rate
71%
• Cost of service shows disparities in ratio
of allocated costs to provide electric
service, and what customer classes pay
for the services received
• Solar customers on an energy-based rate
avoid approximately $72 per month
based on proposed rates
• Current rate structure results in 96% of
customers paying more than they should
to subsidize rooftop solar
• APS is the first utility to conduct a full
cost of service study considering solar
customers as a separate class Energy Rate
38%
Total
General
Service
(Business)
Customers Total
Residential
Customers
* Test-year ended December 31, 2015 based on current rates
Powering Growth, Delivering Value16
Focus Area Current State Rate Case Objective
Time-of-Use
Rates (TOU)
• > 50% of residential customers are on a
TOU rate
• On-peak hours from 12-7 PM (M-F)
• TOU difference in on-peak prices that are 4
times the off-peak prices
• Most residential customers on a TOU rate
• On-peak hours from 3-8 PM (M-F) to better
align with system peak
• TOU difference in on-peak prices that are 2
times the off-peak prices
Demand
Rates
• 11% of residential customers are on demand
rates, more than any other electric utility
• Most residential customers on demand rates
• Calculated on the highest demand averaged
over a one-hour period during the on-peak
period each month
Basic Service
(Fixed)
Charge
• Customers pay basic service charge ranging
from $8.67 - $16.91 per month
• Set basic service charge for all rate classes
ranging from $14 - $24 per month
Net Metering • Excess power compensated at full retail price • Excess power compensated at export price
aligned with avoided cost
• Recovery of cost to purchase through existing
PSA mechanism
• Grandfather qualified rooftop solar customers
Lost Fixed
Cost
Recovery
(LFCR)
• 1% year-over-year adjustment cap based on
total revenues
• Recovers portion of costs reduced by energy
efficiency (EE) and distributed generation
(DG) programs
• Similar construct, but increase year-over-year
adjustment cap to 2% based on total
revenues
• Increased portion of lost fixed costs eligible for
recovery
RATE DESIGN
MODERNIZATION
Rate design that better aligns
pricing with cost to serve and
leverages existing platform
Powering Growth, Delivering Value17
RATE DESIGN
MODERNIZATION
Key residential rate proposals
designed to reduce cost shift
among customers
• Streamlined rate choices for residential
customers including combinations of the
following:
– Reduced kWh charges for variable portion
(energy rate)
– Increased fixed charge component (basic
service charge)
– Variations of new demand (kW) charge
applied to on-peak hours
• Measured using a customer’s peak
demand during on-peak hours
(3-8 pm, Monday-Friday)
• Peak demand then multiplied by a
demand rate
• Example:
– 5kW demand during on-peak*
– $6.60/kW demand rate (R-1 rate plan)
– 5kW x $6.60 = $33.00 demand charge
Variable Variable
(energy rate per kWh)
Fixed
Fixed
(basic service charge)
Demand
(demand rate per kW)
Current
Customer Bill
Proposed
Customer Bill
* Peak demand is calculated on the highest demand averaged over a one-hour period during the on-peak period each month.
Powering Growth, Delivering Value18
RATE DESIGN:
A SOLID FOUNDATION
TO BUILD ON
Over 50% of APS residential
customers are already on
time-of-use rates, including
11% on demand rates
0%
25%
50%
75%
100%
Standard TOU - Energy TOU - Demand
Powering Growth, Delivering Value19
OCOTILLO MODERNIZATION PROJECT AND
FOUR CORNERS SCRs
Ocotillo Modernization
Project Four Corners SCRs
In-Service Dates
Units 6, 7 – Fall 2018
Units 3, 4 and 5 – Spring 2019
Unit 5 – Late 2017
Unit 4 – Spring 2018
Total Cost (APS) $500 million $400 million
Estimated Cost Deferral $45 million (through 2019) $30 million (through 2018)
Rate Request
Requesting cost deferral from date of
commercial operation to the effective
date of rates in next rate case
Requesting cost deferral order from
time of installation to incorporation of
the SCR costs in rates using a step
increase beginning in 2019
• Included in the 2016 rate case application, APS is requesting Accounting Deferral
Orders for two large generation-related capital investments
– Ocotillo Modernization Project: Retiring two aging, steam-based, natural gas units,
and replacing with 5 new, fast-ramping, combustion turbine units
– Four Corners Power Plant: Installing Selective Catalytic Reduction (SCR)
equipment to comply with Federal environmental standards
Powering Growth, Delivering Value
APPENDIX
Powering Growth, Delivering Value21
OPERATIONS &
MAINTENANCE
OUTLOOK
Goal is to keep O&M per kWh flat,
adjusted for planned outages
$754 $761 $788
$805 $772
$150 $124
$137 $103
$96
$82
2011 2012 2013 2014 2015 2016E
PNW Consolidated RES/DSM*
*Renewable energy and demand side management expenses are offset by adjustment mechanisms.
($ Millions)
$825 -
$845
Powering Growth, Delivering Value22
2016 2017 2018
RETAIL SALES IMPACT FROM ENERGY
EFFICIENCY AND DISTRIBUTED GENERATION
YoY Retail Sales Before Customer Programs
Energy Efficiency &
Customer Conservation
Distributed
Generation
Distributed Generation (DG) Impact
• DG makes up 0.5% or less of the negative
impact to retail sales growth as shown in the
chart
• Average residential rooftop solar system
produces 10,000 – 12,000 KWh per year
(average metro-Phoenix customer’s usage is
nearly 15,000 KWh)
The difference between customer growth and
weather-normalized retail sales, mostly driven by
EE and DG, has averaged around (1.0)% over the
last four years, with some larger quarterly variances.
2015: (0.5)%
2014: (1.4)%
2013: (1.8)%
2012: (1.0)%
Annual Retail Sales Growth %
Powering Growth, Delivering Value23
DIVIDEND GROWTH
Pinnacle West’s annual dividend is
$2.50 per share; targeting ~5%
annual dividend growth
$2.10
$2.18
$2.27
$2.38
$2.50
2011 2012 2013 2014 2015 2016 2017
Dividend Growth Goal
Indicated Annual Dividend Rate at Year-End
Projected
Future dividends subject to declaration at Board of Directors’ discretion.
Powering Growth, Delivering Value24
Credit Ratings
• A- rating or better at S&P, Moody’s and Fitch
2016 Major Financing Activities
• Repaid, at maturity, $250 million of 6.25% senior
unsecured notes due August 1
• $350 million 30-year 3.75% APS senior unsecured
notes issued May 2016
• $100 million term loan closed April 2016
• Currently expect up to an additional $350 million
of long-term debt
We are disclosing credit ratings to enhance understanding of
our sources of liquidity and the effects of our ratings on our
costs of funds.
BALANCE SHEET STRENGTH
$50
$600
$250
$125
$-
$100
$200
$300
$400
$500
$600
2017 2018 2019 2020
APS PNW
($Millions)
Debt Maturity Schedule
Powering Growth, Delivering Value25
• 10-Year Transmission Plan filed January 2016
(115 kV and above)
– 110 miles of new lines
• Also includes:
– Delaney-Palo Verde 500kV (2016)
– Delaney-Sun Valley 500kV (2016)
– Sun Valley-Trilby Wash 230kV (2016)
– Morgan-Sun Valley 500kV (2018)
– North Gila-Orchard 230kV (2021)
• Projects to deliver renewable energy approved by
ACC
• Transmission investment diversifies regulatory
risk
– Constructive regulatory treatment
– FERC formula rates and retail adjustor
APS TRANSMISSION
Strategic transmission investment
is essential to maintain reliability
and deliver diversified resources
to customers
Legend
Planned lines
Existing lines
Solar potential area
Wind potential area
Phoenix
Flagstaff
Tucson
Powering Growth, Delivering Value26
Bob
Stump (R)*
Tom
Forese (R)
Doug
Little (R)
Chairman
Terms to January 2019Terms to January 2017
Bob
Burns (R)
Other State Officials
Andy
Tobin (R)
ARIZONA CORPORATION COMMISSION
* Term limited - elected to four-year terms (limited to two consecutive)
** Submitted resignation to become effective October 2016
ACC Utility Division Director - Tom Broderick**
RUCO Director - David Tenney
Powering Growth, Delivering Value27
2016 KEY DATES
ACC Key Dates / Docket # Q1 Q2 Q3 Q4
Key Recurring Regulatory Filings
Lost Fixed Cost Recovery
E-01345A-11-0224 Jan 15
Transmission Cost Adjustor
E-01345A-11-0224 May 15
Renewable Energy Adjustor
E-01345A-16-0238 Jul 1
APS Rate Case
E-01345A-16-0036 Jan 29: NOI Filing Jun 1: Initial filing
Dec 21: Direct
Testimony
Resource Planning and Procurement
E-00000V-15-0094
Feb 9: Stakeholder Mtg.
Mar 1: Prelim IRP filed
Jul 18: Prelim
IRP Workshop
Oct 1: File
Updates to Prelim
IRP*
Reducing System Peak Demand Costs
E-00000J-16-0257
Aug 4: Initial workshop
Sep 27: Workshop
Value and Cost of Distributed Generation
E-00000J-14-0223
Feb 25: DG
Methodologies &
Supporting Testimony
Apr 7: Rebuttal Testimony and
Alternate Proposal
Apr 15: Pre-hearing
Apr 18: Hearing
Jun 8-9 Hearing
Jun 13: Responses
Jul: Initial Briefs
Aug 5: Reply Briefs
Early Oct: ALJ ROO
Oct 27: Scheduled for
Consideration at ACC Open
Meeting
Review, Modernization and Expansion of
Arizona Renewable Energy Standards
E-00000Q-16-0289
TBD TBD
ACC Open Meetings ACC Open Meetings Held Monthly
* April 2017: Final IRP due
Other Key Dates Q1 Q2 Q3 Q4
Arizona State Legislature In session Jan 11- May 7 (Adjourned)
Elections Aug 30: Primary Nov 8: General
All Source Request for Proposal (RFP) Mar 11: RFP Issued Jun 9: Responses Due TBD
Powering Growth, Delivering Value28
ARIZONA ELECTRIC UTILITIES
GENERAL RATE CASES
UNS Electric (93,000 customers)
Docket # E-04204A-15-0142
Application Filed May 5, 2015
Hearing (Mar 1 – 24, 2016)
Decision in Phase One (Decision No. 75697, Aug 18, 2016)
UNSE Customer Education Plan on Rates – Due Sep 30, 2016
Phase Two (Net Metering Issues) Testimony – Expected Dec 2016
Phase Two Hearing – Expected Jan 2017 (if necessary)
Phase Two Decision – Expected Mar 2017
Tucson Electric Power Company (415,000 customers)
Docket # E-01933A-15-0322
Application Filed Nov 5, 2015
Intervenor and Staff Direct Testimony (Jun 2016)
Rebuttal Testimony (Jul 25, 2016)
Non-unanimous Revenue Requirement Settlement Filed (Aug 15, 2016)
Settlement Direct Testimony (Aug 25, 2016)
Settlement Reply Testimony (Sep 1, 2016)
Hearing Begins (Sep 8, 2016)
Phase One Decision – Expected Dec 2016
Phase Two (Net Metering Issues) Testimony – Expected Dec 2016
Phase Two Hearing – To Be Scheduled
Sulphur Springs Valley Electric Cooperative (58,000 customers)
Docket # E-01575A-15-0312
Application Filed Aug 31, 2015
Direct Testimony - Ex Rate Design, Cost of Service (Mar 18, 2016)
Direct Testimony - Rate Design, Cost of Service (Apr 1, 2016)
Rebuttal Testimony (Apr 15, 2016)
Surrebuttal Testimony (May 4, 2016)
Rejoinder (May 11, 2016)
Prehearing (May 13, 2016)
Hearing (May 17, 2016) – Concluded May 27
Decision Expected at October ACC Open Meeting (Oct 27, 2016)
Trico Electric Cooperative (38,000 customers)
Docket # E-01461A-15-0363
Application Filed Oct 23, 2015
Direct Testimony - Ex Rate Design, Cost of Service (May 4, 2016)
Direct Testimony - Rate Design, Cost of Service (May 25, 2016)
Rebuttal Testimony (Jun 22, 2016)
Surrebuttal Testimony (Jul 8, 2016)
Non-unanimous Revenue Requirement Settlement (Jul 8, 2016)
Direct Settlement Testimony (Jul 29, 2016)
Reply Settlement Testimony (Aug 12, 2016)
Hearing (Aug 17, 2016)
Decision Expected December 2016
Powering Growth, Delivering Value29
Regional Haze / BART
(SCR)
Mercury and Other
Hazardous Air Pollutants
(ACI + Baghouse)
Coal Combustion
Residuals
Cooling Water
Intake
Structures –
CWA 316(b)
EPA Ruling Announced in 1999, with site-specific requirements announced more recently
MATS compliance by April
2015, with potential for
one-year extension
Announced on December
19, 2014 (Subtitle D)
Announced in
May 2014
Four
Corners
Units 4 & 5
Approximately $400M for SCRs in 2016-2018
(does not include CAPEX related to
4CA 7% interest)
$0
APS estimates that its share
of incremental costs to
comply with the CCR rule
for Four Corners is
approximately $15 million,
and its share of incremental
costs for Cholla is
approximately $40 million.
APS expects to incur certain
of these costs during 2016-
2018 timeframe.
Immaterial
$0Cholla Unit 3
On September 11, 2014, APS announced a
proposal to close Unit 2 by April 2016 and stop
burning coal at the other APS-owned units
(1 and 3) by the mid-2020’s. If EPA does not
approve the plan, SCR for Unit 3 would cost
approximately $100 million.
$8M
Navajo Plant
Units 1-3
Up to ~$200M for SCRs and baghouses
On July 28, 2014, EPA issued the final BART
rule incorporating the better-than-BART
alternative proposed by SRP and others
Approximately $1 million Approximately $1 million To be determined
ENVIRONMENTAL PLAN
Regional Haze compliance is the
biggest driver of environmental
spend over the next few years
Clean Power Plan: On August 3, 2015, the U.S. EPA issued its final rules to reduce carbon dioxide emissions from fossil fuel-fired power plants
including those on Tribal lands. APS is reviewing the rules, while working closely with other utilities, the Arizona Department of Environmental Quality,
the ACC, tribal officials and other impacted stakeholders to determine how best to proceed. On February 9, 2016, the U.S. Supreme Court granted a
stay of the Clean Power Plan pending judicial review, which temporarily delays compliance obligations.
Note: Dollars shown at ownership. Estimates as of June 30, 2016.
• Cholla: Unit 1 is not BART-eligible; Unit 2 retired on October 1, 2015; Unit 4 is owned by PacifiCorp.
• SO2 NAAQS and greenhouse gas-related costs will be determined based upon EPA rule makings, with no spend occurring before 2016.
• ACI = Activated Carbon Injection; NAAQS = National Ambient Air Quality Standard; SCR = Selective Catalytic Reduction control technology
Powering Growth, Delivering Value30
Emissions
• 820 MW of coal has been retired including 560 MW at Four Corners Units 1-3 in 2013 and 260 MW at Cholla Unit 2
as of October 1, 2015.
• Four Corners: 2013 transaction to purchase Southern California Edison’s ownership in Units 4 and 5 and closure of
units 1, 2 & 3 leads to expected reductions of emissions; particulates are expected to decline by 43%, NOx by 36%,
CO2 by 30%, mercury by 61% and SO2 by 24%.
• Cholla Power Plant: Closure of Unit 2 as of October 1, 2015 will reduce mercury emissions by 51%, particulates
by 34%, NOx by 32%, and CO2 and SO2 by 23% each. We also announced plans to work with the U.S. EPA to stop
burning coal at our remaining Cholla units by the mid-2020s
• Navajo Generating Station: Plan proposed by a group of stakeholders, including SRP, the operating agent, was
approved by the EPA in 2014. The plan will achieve even greater NOx emission reductions than the EPA’s proposal
• Participated in Carbon Disclosure Project since 2006
COAL FLEET STRATEGY
APS’s proactive approach to
reducing emissions leads to coal’s
expected share of the energy mix
being reduced to 14%
26% 18%
25%
14%
26%
36%
11%
18%
12% 14%
2016 2031
P
e
r
c
e
n
t
o
f
P
o
r
t
f
o
l
i
o
M
W
h
EE
RE +DE
Gas
Coal
Nuclear
Note: RE = Renewable Energy; DE = Distributed Energy; EE = Energy Efficiency
Data shown is based on the 2017 Preliminary Integrated Resource Plan filed March 1, 2016.
Powering Growth, Delivering Value31
WATER STRATEGY
APS, and Palo Verde in particular,
has provided national and
international leadership on the use of
reclaimed water for power generation
68%
17%
15%Reclaimed Water
Groundwater
Surface Water
APS 2015 Fleet
Water Use By Source Type
Vision: APS continues to strive for sustainable and cost-effective water supplies for energy
production for APS customers.
Mission: To execute a strategic water resource management program that provides APS timely
and reliable information to manage our water resources portfolio efficiently and effectively, and
helps ensure long-term water supplies and water contingency plans for each of our facilities,
even in times of extended drought.
• Each APS power plant has a unique water strategy, developed to promote efficient and
sustainable use of water.
Water Usage and Intensity: Goal is to maximize
use of renewable water resources and minimize use
of non-renewable resources. Our 2016 initiatives include:
• Reducing consumption of non-renewable water
resources by 8% over 2014 levels, and
• Reducing water intensity company-wide by 20 percent
over 2014 levels
Palo Verde Nuclear Generating Station: The only
nuclear plant in the world that does not sit on a large body
of water. Instead, it uses treated effluent, or wastewater,
from several area municipalities, recycling approximately
20 billion gallons of wastewater each year
Powering Growth, Delivering Value32
RESIDENTIAL VS.
UTILITY-SCALE SOLAR
Performance at system peak
0
2,000
4,000
6,000
8,000
0
100
200
300
400
500
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
M
W
Hour Ending
On August 15th, APS customers hit “peak demand” for 2015 using more than 7,300 MW of electricity
0
2,000
4,000
6,000
8,000
0
100
200
300
400
500
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
M
W
Hour Ending
Rooftop Output
System Load
6,315
166
7,362
75
6,952
0
AZ Sun Output
System Load
7,362
140
• Noon: Customer demand still increasing; rooftop
solar peaks and begins to decline
• 5PM: Customer demand peaks; rooftop solar
producing at 38% of total capacity
• 7PM: Rooftop output at zero, but demand still
above 6,900 MW of power
• Solar panels at 8 of the AZ Sun plants rotate to
track the sun, achieving highest production earlier
in the day and maintaining it later
• At peak demand, utility-scale solar producing at
nearly 80% of total capacity
Residential Rooftop Solar AZ Sun Utility-Scale Solar
Powering Growth, Delivering Value33
ROOFTOP SOLAR CUSTOMERS USE THE GRID
24 HOURS PER DAY
TYPICAL GRID INTERACTION FOR ROOFTOP SOLAR
• Customers with rooftop solar systems do not pay for all of the electric services they use
• These unpaid costs are then paid by other customers (through higher rates) that can’t have or don’t
want solar
• This issue will only get bigger over time
Powering Growth, Delivering Value34
249
357 339
442
610
710
641
785
871
939
523
837
487 683
834
717
1160 1162
1354
1148
1008
1198
1088
11811182
785
1310
1041
1427
1657 1620
0
250
500
750
1000
1250
1500
1750
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2014 Applications 2015 Applications 2016 Applications
* As of July 31, 2016, over 46,500 residential grid-tied solar photovoltaic (PV) systems have been installed in APS’s service
territory. Excludes APS Solar Partner Program residential PV systems.
Note: www.arizonagoessolar.org logs total residential application volume, including cancellations. Solar water heaters can also be found
on the site, but are not included in the chart above.
RESIDENTIAL PV
APPLICATIONS* 15 19 23
44 51
57
74
2009 2011 2013 2015
Residential DG (MW) Annual Additions
Powering Growth, Delivering Value35
GENERATION PORTFOLIO*
Plant Location No. of Units Dispatch COD Ownership Interest1 Net Capacity (MW)
NUCLEAR
1,146 MW Palo Verde Wintersburg, AZ 3 Base 1986-1989 29.1% 1,146
COAL
1,672 MW
Cholla Joseph City, AZ 2 Base 1962-1980 100 387
Four Corners Farmington, NM 2 Base 1969-1970 63 970
Navajo Page, AZ 3 Base 1974-1976 14 315
GAS - COMBINED CYCLE
1,871 MW
Redhawk Arlington, AZ 2 Intermediate 2002 100 984
West Phoenix Phoenix, AZ 5 Intermediate 1976-2003 100 887
GAS - STEAM TURBINE
220 MW Ocotillo Tempe, AZ 2 Peaking 1960 100 220
GAS / OIL
COMBUSTION TURBINE
1,088 MW
Sundance Casa Grande, AZ 10 Peaking 2002 100 420
Yucca Yuma, AZ 6 Peaking 1971-2008 100 243
Saguaro Red Rock, AZ 3 Peaking 1972-2002 100 189
West Phoenix Phoenix, AZ 2 Peaking 1972-1973 100 110
Ocotillo Tempe, AZ 2 Peaking 1972-1973 100 110
Douglas Douglas, AZ 1 Peaking 1972 100 16
SOLAR
189 MW
Hyder & Hyder II Hyder, AZ - As Available 2011-2013 100 30
Paloma Gila Bend, AZ - As Available 2011 100 17
Cotton Center Gila Bend, AZ - As Available 2011 100 17
Chino Valley Chino Valley, AZ - As Available 2012 100 19
Foothills Yuma, AZ - As Available 2013 100 35
Distributed Energy Multiple AZ Facilities - As Available Various 100 15
Gila Bend Gila Bend, AZ - As Available 2015 100 32
Luke Air Force Base Glendale, AZ - As Available 2015 100 10
Desert Star Buckeye, AZ - As Available 2015 100 10
Various Multiple AZ Facilities - As Available 1996-2006 100 4
Total Generation Capacity 6,186 MW
1 Includes leased generation plants* As disclosed in 2015 Form 10-K.
Powering Growth, Delivering Value36
PURCHASED POWER CONTRACTS*
Contract Location Owner/Developer Status1 PPA Signed COD Term (Years) Net Capacity (MW)
SOLAR
310 MW
Solana Gila Bend, AZ Abengoa IO Feb-2008 2013 30 250
RE Ajo Ajo, AZ Duke Energy Gen Svcs IO Jan-2010 2011 25 5
Sun E AZ 1 Prescott, AZ SunEdison IO Feb-2010 2011 30 10
Saddle Mountain Tonopah, AZ SunEdison IO Jan - 2011 2012 30 15
Badger Tonopah, AZ PSEG IO Jan-2012 2013 30 15
Gillespie Maricopa County, AZ Recurrent Energy IO Jan-2012 2013 30 15
WIND
289 MW
Aragonne Mesa Santa Rosa, NM Ingifen Asset Mgmt IO Dec-2005 2006 20 90
High Lonesome Mountainair, NM Foresight / EME IO Feb-2008 2009 30 100
Perrin Ranch Wind Williams, AZ NextEra Energy IO Jul-2010 2012 25 99
GEOTHERMAL
10 MW Salton Sea Imperial County, CA Cal Energy IO Jan-2006 2006 23 10
BIOMASS
14 MW Snowflake Snowflake, AZ Novo Power IO Sep-2005 2008 15 14
BIOGAS
6 MW
Glendale Landfill Glendale, AZ Glendale Energy LLC IO Jul-2008 2010 20 3
NW Regional Landfill Surprise, AZ Waste Management IO Dec-2010 2012 20 3
INTER-UTILITY
540 MW
PacifiCorp Seasonal
Power Exchange - PacifiCorp IO Sep-1990 1991 30 480
Not Disclosed Not Disclosed Not Disclosed IO May-2009 2010 10 60
HEAT RATE OPTIONS
150 MW Call Option - Not Disclosed IO Oct-2005 2007 10 150
CONVENTIONAL
TOLLING
1,074 MW
CC Tolling Not Disclosed Not Disclosed IO Mar-2006 2007 10 514
CC Tolling Not Disclosed Not Disclosed IO Aug-2007 2010 10 560
DEMAND RESPONSE
25 MW Demand Response Not Disclosed Not Disclosed IO Sep-2008 2010 15 25
Total Contracted Capacity 2,418 MW
1 UD = Under Development; UC = Under Construction; IO = In Operation* As disclosed in 2015 Form 10-K.
Powering Growth, Delivering Value37
INVESTOR RELATIONS CONTACTS
Paul J. Mountain, CFA
General Manager, Investor Relations & Audit Services
(602) 250-4952
paul.mountain@pinnaclewest.com
Ted Geisler
Director, Investor Relations
(602) 250-3200
ted.geisler@pinnaclewest.com
Chalese Haraldsen
(602) 250-5643
chalese.haraldsen@pinnaclewest.com
Pinnacle West Capital Corporation
P.O. Box 53999, Mail Station 9998
Phoenix, Arizona 85072-3999
Visit us online at: www.pinnaclewest.com