TransAlta Corporation Investor Presentation May 2018 1 Forward - - PowerPoint PPT Presentation

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TransAlta Corporation Investor Presentation May 2018 1 Forward - - PowerPoint PPT Presentation

TransAlta Corporation Investor Presentation May 2018 1 Forward Looking Statements This presentation includes forward-looking statements or information (collectively referred to herein as forward -looking statements) within the meaning of


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TransAlta Corporation

Investor Presentation May 2018

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This presentation includes forward-looking statements or information (collectively referred to herein as “forward-looking statements”) within the meaning of applicable securities

  • legislation. All forward-looking statements are based on our beliefs as well as assumptions based on available information and on management’s experience and perception of

historical trends, current conditions, and expected future developments, as well as other factors deemed appropriate in the circumstances. Forward-looking statements are not facts, but only predictions and generally can be identified by the use of statements that include phrases such as “may”, “will”, “can”, “believe”, “expect”, “anticipate”, “intend”, “plan”, “project”, “forecast”, “foresee”, “potential”, “enable”, “continue”, or other comparable terminology. These statements are not guarantees of our future performance and are subject to risks, uncertainties, and other important factors that could cause actual results or outcomes to be materially different from those set forth in the forward-looking statements. In particular, this presentation contains, but is not limited to, forward-looking statements pertaining to:anticipated industry trends, including decarbonization, growth in renewables and natural gas renewables and shift to fast-ramping technologies; 2018 goals and priorities, including delivering free cash flow growth of 5% to 10% and advancing work on coal to gas conversions; extension of contracts beyond original contract term; ability to leverage our knowledge and customer relationships to develop new sites; life extension and growth of the hydro facilities, including the green credits expected under the new regulation and development of Brazeau pumped storage and Bighorn facility expansion; converting 2,600 MW of the Alberta coal fleet to clean energy by 2022; monetization of Off-Coal Payment; carbon tax climbing to $50/tCO2 by 2022; implementation of the capacity market in Alberta with the first auction in 2019 for capacity in 2021; fleet life extended by approximately 75 years adding over $1 billion of FCF; new green credits and terms, including application of credits to

  • ffset the carbon costs for coal and converted gas units; increase in wind revenue from Alberta of over 90% going forward; post-PPA upside for Alberta hydro; benefits of Alberta

capacity market and capacity requirements to 2030; Alberta capacity and energy price forecasts to 2032; reduction in emissions; the characteristics of the coal-to-gas conversions, including timing, reduction in costs, impact on free cash flow and heat rate; key actions to support TransAlta’s growth strategy, including leveraging existing sites, merchant exposures and expanding into new regions; growth opportunities from 2018 to beyond 2031, including acquisitions, coal-to-gas and solar development; Alberta pipeline strategy and benefits of Tidewater pipeline; the Brazeau pumped storage project and Bighorn hydro expansion, including construction and costs, contracting and timing; growth to be realized, including the Garden Plains and Cowley Ridge wind farms in Alberta and the Antelope Coulee Wind farm in Saskatchewan, including the capacity, in-service date and cost of each project; capital allocation in 2018 and 2020; future capital structure, including adjusted FFO to net debt in 2020; FCF outlook in 2018; the 2018 outlook, including comparable EBITDA, FFO and FCF ranges; the 2018 to post-2021 FCF outlook; and the relationship with TransAlta Renewables, including TransAlta’s continued sponsorship of TransAlta Renewables and the ability of TransAlta renewables to compete for third party acquisitions and new opportunities. Factors that may adversely impact our forward-looking statements include risks relating to: legislative or regulatory developments, including as it pertains to the Alberta capacity market and Federal environmental legislation; changes in economic and competitive conditions; inability to secure natural gas supply and the construction of a natural gas pipeline on terms satisfactory to the Company; the introduction of disruptive sources of energy or capacity; changes in the price for natural gas; decreased demand for energy or capacity; availability of financing; fluctuations in market prices, including deviations of Alberta spot and Mid-C spot prices relative to stated assumptions; the availability of fuel supplies required to generate electricity, including the costs of natural gas within Alberta; changes to the relationship with, or ownership of, TransAlta Renewables; wind and hydro resources being less than long term average; reduction to the Canadian coal capacity factor; our ability to contract our generation for prices that will provide expected returns; risks associated with development projects and acquisitions, including permitting, labour and engineering risk associated with the coal to gas conversions; increased costs or delays in the construction or commissioning of pipelines to the converted units. The foregoing risk factors, among others, are described in further detail in the Risk Management section of our Management Discussion and Analysis and under the heading “Risk Factors” in our Annual Information Form. Readers are urged to consider these factors carefully in evaluating the forward-looking statements and are cautioned not to place undue reliance on these forward-looking statements. The forward-looking statements included in this document are made only as of the date hereof and we do not undertake to publicly update these forward-looking statements to reflect new information, future events or otherwise, except as required by applicable laws. Readers are cautioned not to place undue reliance on forward-looking statements, which reflect the Corporation's expectations only as of the date of this presentation. The purpose of the financial outlooks contained in this presentation is to give the reader information about management's current expectations and plans and readers are cautioned that such information may not be appropriate for other

  • purposes. In light of these risks, uncertainties, and assumptions, the forward-looking events might occur to a different extent or at a different time than we have described, or might

not occur at all. We cannot assure that projected results or events will be achieved. Certain financial information contained in this presentation, including Comparable EBITDA, FFO and FCF, may not be standard measures defined under International Financial Reporting Standards (“IFRS”) and may not be comparable to similar measures presented by other entities. These measures should not be considered in isolation or as a substitute for measures prepared in accordance with IFRS. For further information on non-IFRS financial measures we use, see the section entitled “Reconciliation of Non-IFRS Measures” contained in our most recently filed Management's Discussion and Analysis, filed with Canadian securities regulators on www.sedar.com and the Securities and Exchange Commission on www.edgar.com. Unless otherwise specified, all dollar amounts are expressed in Canadian dollars.

Forward Looking Statements

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Emerging Industry Trends

TransAlta well positioned to capitalize on emerging trends

 Move away from coal

De-carbonization

 Growth in renewables as a source of low carbon generation  Cost of renewables is declining  Intermittent nature of renewables is shifting value from

baseload to peaking resources Significant Growth in Renewables

 Abundant supply of low cost natural gas will support

dispatchable natural gas generation and coal to gas conversions Natural Gas Generation Growth

 Growing need for flexible, responsive generation  Value of hydro-based power storage will increase  Increasing recognition of the importance of reliability

Shift to Fast- Ramping Technologies

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2018 Goals and Priorities

Meeting Customer Needs With Low Cost, Reliable, Clean and Firm Power

1

 Support the development of a fair and equitable capacity market

2

 Advance ongoing work on coal to gas conversions

3

 Continue to improve our safety and environmental metrics

4

 Deliver free cash flow growth between 5% and 10%

5

 Continue to pursue our Greenlight initiatives and accretive growth projects

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PRELIMINARY DRAFT – FOR DISCUSSION PURPOSES ONLY, 2018-05-11 9:32 AM

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TransAlta’s Global Generation Portfolio

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BC WA ON WY QC NB MN AB MA

TransAlta Today

Significant generator with 8,266 MW of capacity Highly contracted (70%) with upside to Alberta market

1 Comparable EBITDA less sustaining capital and other adjustments and excludes Energy Marketing and Corporate Segments

Diversified operations with over 65 facilities in three countries

AUSTRALIA

Coal / Future CTG Hydro Gas Solar Wind Corporate Offices

2017 SEGMENTED CASH FLOW FROM THE BUSINESS(1) 25% 43% 25% 7% Wind / Solar Hydro Gas Coal

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$315 $334 $372

2014 2015 2016 2017 2021E EBITDA ($ millions)

$400 $300 - $330

Natural Gas

Long-term stable cash flows

OVERVIEW

 100% of generation contracted  9 year weighted average contract life  Total net capacity of 1,348MW  67% Canada and 33% Australia

CUSTOMER FOCUS

 Sites designed and built to supply a

customer need

 Excellent track record of extensions

beyond original contract term

WESTERN CANADA EASTERN CANADA AUSTRALIA

Gas-fired Generation Assets

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$179 $176 $195 2014 2015 2016 2017 2021+ Contracted EBITDA ($ millions) Merchant EBITDA ($ millions) $214 $220 - $240

Wind and Solar

OVERVIEW

 71% of generation contracted with an

average capacity weighted contract life of 13 years

 Total net capacity of 1,339MW  Canada’s largest generator of wind power  Experienced developer and operator of

wind in Alberta OPERATING MODEL

 Remote monitoring and operation of all

sites optimizes site performance

 Extensive data enables optimization of

  • perations

 Able to leverage our knowledge and

customer relationships to develop new sites

WESTERN CANADA EASTERN CANADA WESTERN U.S.

Wind / Solar Assets

Highly contracted asset base with upside in Alberta

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Hydro

Unique, reliable and perpetual

OVERVIEW

 Own and operate over 90% of Alberta’s

hydro

 Expecting approximately $25 million

annually in green credits under new regulation

 Critical back-up for wind and solar  Essential for market stability  Immediate ramping

LIFE EXTENSION AND GROWTH

 Re-contracted Akolkolex for 30 years  Optionality for extensions and upgrades  New opportunities:  Brazeau Pumped Storage  Bighorn facility expansion WESTERN CANADA EASTERN CANADA CANADA

Hydro Facilities

$87 $73 $82 2014 2015 2016 2017 2021+ EBITDA ($ millions) $75 $225 - $275

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CA and US Coal / Future CTG

OVERVIEW

Total net capacity of 4,653MW

3,313MW in Alberta and 1,340MW in US

PPAs on Keephills 1 and 2 and Sheerness expire at end of 2020 in advance of the transition to the new capacity market STRATEGIC OBJECTIVES

Optimize the value of the coal portfolio between 2018 to 2020

Convert 2,600 MW of the Alberta coal fleet to clean energy by 2022

Evaluate timing of conversions of jointly owned facilities – Keephills 3, Genesee, and Sheerness OFF-COAL AGREEMENT

Government of Alberta annual off-coal payments

  • f $37.4 million totaling $524 million

First payment received in Q3/17

Opportunity to monetize ($300-350 million)

Coal / Future CTG Facilities

Approximately $200 million in FCF annually for an additional fifteen years beyond 2021

$451 $456 $434 2014 2015 2016 2017 2021+ EBITDA ($ millions) $413 $300 - $350

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PRELIMINARY DRAFT – FOR DISCUSSION PURPOSES ONLY, 2018-05-11 9:32 AM

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Clarity in Alberta’s Power Market Transition

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Regulatory Clarity Achieved

Regulatory clarity supports investment strategy

Off-coal agreement and federal rules mean coal is phased out by 2029 in Canada

Coal Phase Out

Initial carbon tax of $30/tCO2 effective January 1, 2018, potentially climbing to $50/tCO2 by 2022

Credits for electricity generation with emissions below 0.37 tCO2 per MWh

Existing wind and hydro eligible

Environmental Policies

Supports incumbent and new generation by providing value for capacity

Capacity market design well advanced

First auction in 2019 for capacity in 2021

Capacity Market

Plant life extended by 5 to 10 years past coal end of life

TransAlta’s cumulative fleet life extended by approximately 75 years adding over $1 billion of FCF

Coal to Gas

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Alberta Carbon Rules are a Positive Outcome for TransAlta

$30 to $50 million annually in credits for existing renewables

EXISTING WIND AND HYDRO GENERATION

 Will receive credits for generation up to

the performance standard under the OBA

NEW GREEN CREDITS

 Eligible to use credits for up to 40% of

carbon price obligations starting in 2018

 Escalating by 5% per year to 60% by

2022

 Credits will be used to offset the carbon

costs for coal and converted gas units

0.37 tCO2e/MWh Emissions above standard Emissions below standard

Generators charged based

  • n emissions

above the performance standard Generators credited based

  • n emissions

below the performance standard

OBA SYSTEM

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Upside Potential for Alberta Wind Assets

Revenue from Alberta expected to increase over 90% going forward

 Alberta market supports higher value  Benefit from higher expected power

price due to carbon costs and higher stronger fundamentals

 $15 to $20 million annually in green

credits

 Will qualify for capacity payments in

2021 ALBERTA WIND REVENUE(1)

1) Energy price in 2018 to 2020 assumed to be $65/MWh. Energy and capacity prices post 2021 assumed to be $40/MWh and $10/KW-month, respectively. Credits based on a $30 carbon tax in 2018 to 2020 and a $50

carbon tax post 2022. Generation assumed to be 1,000 GWh

$0 $10 $20 $30 $40 $50 $60 Today 2018 to 2020 Post 2021 Power Revenue ($ mm) Capacity Revenue ($ mm) Credits ($ mm)

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Significant Upside Post-PPA for Alberta Hydro

Comparable hydro assets valued at 12x to 14x EBITDA

1Balancing Pool

$0 $50 $100 $150 $200 $250 $300 Historical EBITDA (5-yr average) Capacity Payment Received from BP¹ Obligations Paid to the BP¹ Future Capacity Payments Emissions Credits Future Proforma EBITDA $ millions $225 - $275

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Development of Alberta’s Capacity Market Supports Our Fleet

TransAlta is well positioned to compete in a capacity market

 Provides future revenue visibility and stability

Forward Auction

 All capacity resources permitted to participate  TransAlta’s entire generation fleet will be able to participate

Equal Treatment

 Mitigates price volatility and supports capacity revenue during

periods of oversupply Downward Sloping Demand Curve REP Capacity Excluded

 Avoids negative impact on capacity price due to subsidized

renewables

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12,144 12,557 13,231 1,822 1,884 1,985 13,966 14,441 15,216 2021E 2025E 2030E Peak Demand 15% Reserve Adjusted Capacity: 13,700

TransAlta’s Units are Required

EXPECTED CAPACITY REQUIREMENTS (MW)

(3) (4)

1 Based on AESO’s 2017 reference case 2 Assumes AESO sets a 15% reserve margin above peak demand for determining capacity requirements 3 Adjusted for outages, de-rates and anticipated capacity

eligibility for thermal (95%), hydro (90%) and wind (15%) generation 4 Assumes interties are ineligible for capacity (1) (2)

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PRELIMINARY DRAFT – FOR DISCUSSION PURPOSES ONLY, 2018-05-11 9:32 AM

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Transitioning our Coal Fleet

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Timeframe

“Fuel switching is an attractive and economical option for utilities that must maintain a certain generating capacity in their fleet […]” – Power Engineering “A number of coal plants nationwide have converted to natural gas, a move that uses much of the same infrastructure but involves different economics, less pollution […]” – Midwest Energy News

NORTH AMERICAN CTG CONVERSIONS MW Converted

Not a new concept - many North American examples of CTG conversion

CTG Conversions: Proven Technology

Harding Street Unit 7 2016 450MW Joliet Unit 7/8 2016 1,326MW(1) Shawville Unit 3/4 2015/2016 376MW

2 2 5 10 26 18

  • 1,000

2,000 3,000 4,000 5,000 2011 2012 2013 2014 2015 2016 MW Converted Conversions

(# Completed)

1Capacity for Unit 6 (290MW), Unit 7 (518MW), and Unit 8 (518MW). Units 7 and 8 are most similar to TransAlta’s planned conversions

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20 20 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 2017 2019 2021 2023 2025 2027 2029 2031 2033 2035 2037 2039 No Conversion Scenario Convert to Gas

Key Driver of Conversion – Life Extension

Cumulative fleet life extended by approximately 75 years

TRANSALTA’S COAL & CTG GENERATION CAPACITY (MW)

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Key Outcomes of Conversion – Emissions Reduction

1NOx reduction ranges from 10% to 70% depending on unit specification. Certain units already generate low NOx emissions.

Carbon emissions are almost halved and particulate emissions are effectively eliminated for converted generation

EMISSIONS INTENSITY REDUCTION (%)

(1)

48% 60% 98% 95% CO2 NOx SO2 Hg

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Key Outcomes of Conversions – Reduced Fixed Costs

Fixed OM&A and sustaining capital costs are reduced by approximately 15%

1Average annual fixed costs for a 400 MW unit

Less complex

  • perations lead to

significant cost reductions

$0 $5 $10 $15 $20 $25 $30 $35 $40 $45 Convertible Coal Converted Gas $ millions Fixed OM&A Sustaining Capital Pipeline Tolls

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Key Outcomes of Conversion – Competitive Variable Costs

Cost of carbon drives competitive advantage

Note: Converted unit based on natural gas price of $2.50/GJ. “Other” category includes costs associated with the removal of mercury, and costs associated with reducing NOX, SOx, and particulates. Transmission costs are excluded in all scenarios.

$30 PER TONNE CARBON COSTS ($/MWh) $50 PER TONNE CARBON COSTS ($/MWh)

$0 $5 $10 $15 $20 $25 $30 $35 $40 $45 $50 Coal Converted Coal Converted Fuel Carbon Other

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24 24 $- $500 $1,000 $1,500 $2,000 $2,500 $3,000

Key Outcomes of Conversions – FCF Generation

Assumes $30 carbon tax and $8/KW-month capacity price

CUMULATIVE FCF OVER LIFE OF ASSETS ($ MILLION)

Expected FCF growth of over $1 billion with conversion

Conversion expected to generate over $1 billion in additional FCF given expected federal regulations

Stay on Coal Convert to Gas

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  • $50

$100 $150 $200 $250 $300 $350 $400 $7.00 $8.00 $9.00 $10.00 $11.00 $12.00 $13.00 FCF @ $30/tonne Capacity Price ($/KW-month)

FCF of converted units is expected to be in-line with historical

Sensitivity of FCF to Capacity Prices

2014 - 2016 Average

  • EST. AVERAGE ANNUAL FCF UNDER CAPACITY MARKET ($ MM)
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Substantial Economic Advantages Compared to New Build

  • Conversions will be able to enter the market faster, at lower capital cost and

with substantially less risk than new CCGT

Build Cost (2,700 MW) Carbon Tax Ramping Time to Build CTG Conversion $300 million Higher Slower 60 days New Combined Cycle Facility $4.5 billion Lower Faster 4 – 5 years

Conversions will supply customers with low priced, reliable power

Illustrative Heat Rate 9.5x - 11x 7x

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PRELIMINARY DRAFT – FOR DISCUSSION PURPOSES ONLY, 2018-05-11 9:32 AM

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Strongly Positioned For The Future

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TransAlta’s Growth Strategy

De-carbonize Leverage Existing Sites Leverage Scale and Operational Expertise for Acquisitions Focus on Greenfield & Brownfield Take Some Merchant Risk Expand into New Regions Expand Direct Customer Business Partner

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TransAlta’s Growth Strategy – Key Actions

De-carbonize Fleet Leverage Existing Sites Leverage Scale and Operational Expertise Focus on Greenfield & Brownfield Take Some Merchant Risk Expand into New Regions Expand Direct Customer Business Partner

  • Convert coal to gas
  • Expand in hydro/wind/solar/efficient gas
  • Expand existing Alberta hydro sites (e.g. Brazeau)
  • Future repowering of existing wind sites
  • Add new natural gas at existing coal sites
  • Integrate new assets without adding significant overhead/admin costs
  • In-sourcing of operations and maintenance
  • Leverage experience and competitive advantage in new builds
  • Less competitive - higher returns
  • Leverage Energy Trading & Marketing expertise and knowledge
  • Opportunities with some merchant risk attract fewer competitors and generate

higher returns

  • Expand into other regions of U.S. and Eastern Australia
  • Behind-the-fence generation
  • PPAs with non-traditional counterparties (e.g. technology/telecom companies)
  • Create value by combining strengths of other parties
  • Potential to partner with financial players, OEMs, and customers

Strategy Actions

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Growth Opportunity Set

TransAlta/TransAlta Renewables well positioned to continue to grow

 Alberta natural gas pipeline  Potential for 500+ MW of renewables in Alberta and Sask.  Behind the fence gas generation in Alberta, BC and Ontario  Solar development in Australia and U.S.  Significant acquisition opportunities in U.S., Canada, Australia  Conversion of 2,500 - 3,000 MW of coal to gas  Potential for 4,000 MW of renewable in Alberta  Brazeau energy storage project, Bighorn expansion, Dunvegan  Repowering of existing wind sites in U.S. and Canada  Acquisitions  Replacement of 3,000 MW of converted CTG in Alberta with

greenfield natural gas fired generation and storage

 Greenfield solar and wind in U.S.  Acquisitions

2018 - 2020 2021 - 2030 2031+

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PROVIDES ACCESS TO TIDEWATER STORAGE FACILITIES

Alberta Pipeline Strategy

NATURAL GAS PIPELINE REQUIREMENTS

 Sundance and Keephills can consume up

to 175 MMcf/d through fuel blending; up to 700 MMcf/d when running at full capacity once converted

 Existing pipelines can provide only limited

amount of gas today TIDEWATER NATURAL GAS PIPELINE

 Entered into an agreement with Tidewater

to construct a pipeline from their Brazeau River Complex to TransAlta’s generating facilities

 Initial volumes of 130 MMcf/d with the

potential to expand to 440 MMcf/d

 Cost of $150 to $170 million, and

expected COD in early 2020

 TransAlta has the option to invest in up to

50% of the pipeline

 Aligns both companies interests;

provides low cost access to natural gas transportation and future flexibility

 Ownership builds on TransAlta’s

  • wnership of natural gas pipeline

infrastructure in Australia

PROPOSED PIPELINE MAP

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Edmonton

Bonnyville Grande Prairie Hinton Camrose Wetaskiwin Red Deer Drumheller Calgary Lethbridge Medicine Hat

  • Ft. McMurray

100 km 60 mi Big Horn 1&2 – 120MW Abraham Lake Rocky Mountain House Brazeau Dam 355MW Brazeau Gorge Brazeau Canal Brazeau Reservoir Edmonton Water Flow Water Flow Water Flow

Brazeau Energy Storage

SIGNIFICANT VALUE

 Unique one-of-a-kind pumped storage

hydro project

 Up to 900 MW  Investment of $1.5 to $2.7 billion  Significant economic and employment

benefits

 Targeting 2025/2026 operating date  Requires long-term contract

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Brazeau Pumped Hydro – Significant System Benefits

Brazeau Pumped Hydro Storage

Fast Ramping Load Following Wind Firming Avoided Curtailment Voltage and Inertia Support

Supports Transition to Clean Energy and a Low Cost, Reliable Electricity System

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TransAlta’s Brazeau Pumped Hydro Opportunity

Leverages existing infrastructure

Existing power house Proposed pumped hydro

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Brazeau: Significant Work Completed and Underway

Engaged Owner’s Engineer, providing Class 5 Estimate Conducted initial geotechnical work Started engagement with First Nations Started environmental field studies Engaged with Governments, Communities, Unions, Regulators and NGOs

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Bighorn 1&2 – 120MW Abraham Lake Rocky Mountain House Brazeau Dam 355MW Brazeau Gorge Brazeau Canal Brazeau Reservoir Edmonton Water Flow Water Flow Water Flow

Bighorn Hydro Expansion

 Expand existing Bighorn from 120 MW to

240 MW

 Two additional turbines and intake

structure

 Preliminary engineering work completed,

identifying no significant issues

 Utilizes existing infrastructure  Capable of providing energy, capacity

and ancillary services

 Preliminary cost estimate of $360 million

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Alberta wind projects remain candidates for future REP procurements

  • r third party contracting

Canadian Wind Projects

Edmonton Calgary Saskatoon Regina Hanna Pincher Creek Swift Current

Garden Plains Wind

Location 30 km north of Hanna, Alberta Capacity 130MW Proposed In-Service Date Future Alberta REP calls or third party contracting Capital Costs $260 mm Other Details Wind resource data dating back to 2009 Partnerships with landowners since 2011

Antelope Coulee Wind

Location 35 km southwest of Swift Current, Saskatchewan Capacity Up to 200MW Proposed In-Service Date April 2021 Capital Costs $400 mm Other Details Wind resource data dating back to 2008

Cowley Ridge Wind Repower

Location Northwest of Pincher Creek, Alberta Capacity 20MW Proposed In-Service Date Future Alberta REP calls or third party contracting Capital Costs $40 mm Other Details Site of original Cowley Ridge Wind Farm which was built in 1993 and dismantled in 2016 Long-term understanding of wind resource

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Well Positioned to Grow

 Proven track record with significant opportunities being evaluated  Competitive advantages beyond cost of capital  Brownfield expansions leveraging existing infrastructure provide unique growth

  • pportunity

 Continue to utilize TransAlta Renewables for long-term contracted opportunities

Remain Focused and Disciplined

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Outlook and Financial Summary

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$0.3 $1.2 $0.1 $0.3 $0.3 $1.4 $0.2 $0.4 Uses Sources

Growth

Capital Allocation - 2018 to 2020

Prudent allocation of capital – excess cash could be allocated to growth or be returned to shareholders

Bond Repayment Amortizing Debt Dividend FCF including payment for Alberta PPA termination Off-Coal Monetization RNW tax equity Existing Liquidity

SOURCES & USES ($ BILLION)

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Capital Structure – On Solid Ground

Flexibility to fund additional growth or to return cash to shareholders over the next three years

ADJUSTED FFO TO NET DEBT

 Adjusted FFO/Net Debt expected to be at the high end of our 25 – 30% range in 2021

2018 to 2020 Target (20 – 25%) Post 2020 Target (25 – 30%) 16.5% 17.6% 17.0% 18.2% 18.2% 19.2% 20.4% 20.9% 0% 5% 10% 15% 20% 25% 30% Q2 2016 Q3 2016 Q4 2016 Q1 2017 Q2 2017 Q3 2017 Q4 2017 Q1 2018

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$328 $0 $100 $200 $300 $400 $500 $600 2017 2018E

Free Cash Flow Outlook

FREE CASH FLOW BUILD-UP ($ MILLION)

  • Int. Exp. Reduction

Alberta Market Optimization Greenlight & Other South Hedland

$300 - $350

Solomon Sundance A Sundance B/C Coal Cost

Sundance B/C Termination Payment

More upside through additional productivity gains, cost and capital reductions and higher prices

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2018 Outlook

2018 Outlook Ranges(1) ($ million)

Low High Comparable EBITDA $1,000 $1,050 Funds from Operations $750 $800 Sustaining and Productivity Capital (215) (235) Free Cash Flow $300 $350 Free Cash Flow Per Share $1.04 $1.22 Annual Dividend $0.16 $0.16 Dividend Payout Ratio 15% 13%

Range of Key Assumptions

Alberta Spot ($/MWh) $50

  • $60

Alberta Contracted ($/MWh) $35

  • $40

Mid-C Spot (US$/MWh) $20

  • $25

Mid-C Contracted (US$/MWh) $47

  • $53

Canadian Coal Capacity Factor 65%

  • 75%

Hydro / Wind Resource Long term average

(1) Outlook excludes $157 million received in the first quarter related to the Sundance B and C termination payment.

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$0 $100 $200 $300 $400 $500 $600 2018E 2019 to 2020 Post 2021

Free Cash Flow Outlook

Full Year of Greenlight Interest Reductions Optimization Full Coal Cost Reductions Mississauga Poplar Creek Hydro Upside

FREE CASH FLOW BUILD-UP ($ MILLION)

$300 - $350 Sundance B/C Termination Payment $375 - $425 $525 - $575

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Enhancing Growth Through Sponsored Vehicle

COMMENTARY ADVANTAGE FOR TRANSALTA

 Attractive portfolio of highly

contracted renewables and gas-fired assets

 Current dividend yield 8%  Majority shareholder - 64%  Provides stable and predictable

dividends to TransAlta

 Low leverage offers strong

potential for growth

 Significant acquisition capacity

(both third-party acquisitions and drop-downs)

 Market premium multiple for

assets with strong, stable cash flows – 9.4x EV/EBITDA

 Access to competitive cost of

capital – 11% AFFO Yield

 Ability to compete for third party

acquisitions and new

  • pportunities

 Ability to align risk/return profile

with appropriate entity

 Provides natural home for new

renewables investments Significant Source of Value Strong Balance Sheet Premium for Strong, Stable Cash Flows

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Why Invest in TransAlta

Diversified portfolio in Alberta creates short-term value Significant value creation from coal to gas conversions Strong long term cash flows from diversified portfolio Improving balance sheet Growth opportunities unique to TransAlta

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$1.9 $3.1 $0.9 $1.3 $2.9 $1.0 $2.2 $0.4 $0.6 $0.2

TA Equity TA Debt, net of cash Preferred Shares NCI RNW Equity RNW Debt Remaining Value Coal Plant

Value of Coal Not Being Recognized

Correct valuation for the coal and CTG would increase the share price by $5 to $8 per share

Hydro (2) Coal Monetization Renewables and gas not held at RNW PPA Termination payment Market is currently assigning no value to coal assets

TA RNW TA-Excluding RNW

Priced as of April 30, 2018. Balance sheet items reflect Q1 2018 values.

1 includes the market value of TransAlta Renewables and BV of TA Cogen. 2 Hydro valued at $2.6 million per MW

(1)

TA Upside

Implies Coal at 6x to 8x EBITDA