1. A LEADING RENEWABLE POWER PRODUCER
THE PATH TO 1,000 MW
TSX : AXY
1 APR 2012 COMPANY PRESENTATION

2. Forward-Looking Information
This Presentation contains certain “forward-looking information” within the meaning of Canadian securities laws, which may include, but is
not limited to, statements with respect to future events or future performance, management’s expectations regarding Alterra’s production
capacity, results of operations, cash flows, revenues and requirements for capital, future demand for and prices of electricity, and Alterra’s
business prospects and opportunities.
These statements reflect the current views of Alterra with respect to future events and are necessarily based upon a number of
assumptions and estimates that, while considered reasonable by Alterra, are inherently subject to significant business, economic, political
and social uncertainties and contingencies. Many factors, both known and unknown, could cause Alterra’s actual results, performance or
achievements to be materially different from the results, performance or achievements that are or may be expressed or implied by such
forward-looking statements contained in this presentation, and Alterra has made assumptions based on or related to many of these
factors. Such factors include, without limitation: fluctuations in currency markets (particularly with respect to the Icelandic krona, the U.S.
dollar and Canadian dollar); risks related to the technological and operational nature of Alterra’s business; changes in national or regional
governments, legislation, regulation, permitting or taxation; political or economic developments in Canada, the United States, Iceland or
other countries where Alterra may carry on business; risks and hazards associated with the business of renewable energy generation;
risks relating to the creditworthiness and financial condition of suppliers and other parties which Alterra will deal with; inadequate
insurance or inability to obtain insurance to cover these risks and hazards; employee relations; relationships with and claims by local
communities and First Nations; availability and costs of equipment and labour; litigation; the success and timely completion of planned
expansion and development programs; the growth rate in net electricity consumption; support and demand for renewable energy;
government initiatives to support the development of renewable energy generation; the reliability of technical data and capital expenditure
estimates; and availability of capital to fund development and expansion programs. Forward-looking information and statements are also
based upon the assumption that none of the identified risk factors that could cause actual results to differ materially from the forward-
looking information and statements will occur.
Although Alterra has attempted to identify important factors that could cause actual results to differ materially, there may be other factors
that cause results not to be as anticipated, estimated, described or intended. There can be no assurance that the forward-looking
information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such information.
Accordingly, prospective investors should not place undue reliance on forward-looking information. Other than as required by applicable
securities laws, Alterra does not assume any obligation to update or revise such forward-looking information to reflect new events or
circumstances.
2

3. Alterra Power – Strategy and Assets
Clean energy: permanent, stable cash flow with zero fuel cost/exposure
 Core infrastructure business – once built, permanent value
Our mission: to be a leading global renewable energy company
Our assets today: Geothermal Hydro Wind
567 MW of clean power operated
298 MW net ownership
172 MW in Iceland 235 MW 144 MW
(67% Alterra) + Two large run of BC’s largest wind
16 MW in Nevada river plants in BC farm
(100% Alterra) (40% Alterra) (51% Alterra)
 Near-Term Pipeline: 156 MW wind, 124 MW hydro and 80 MW geothermal power
plants ready or near-ready for construction by end of 2012 (200 MW net to Alterra)
 Long-Term Pipeline: 300 MW+ additional Alterra generation on 2016 horizon
 Assets: Over $880 MM net interest in total assets
 Management Team: Deep experience in wind, hydro, geothermal
3

4. Recent Growth and Performance
Alterra’s recent growth.. Last Six Month’s Performance:
(net interest) (net interest)
CAPACITY PRODUCTION
350
(end of year)
1,800  $54.9 million Revenue
300 1,600
250
1,400
1,200
 $23.3 million EBITDA
200
GWh
MW
1,000
150 800
600
 778 GWh electricity
100
50
400 produced
200
0 0 - 102% of forecast
2009 2010 2011 2012e 2009 2010 2011 2012e
REVENUE EBITDA
$120 $60
$100 $50
Millions USD
$40
Millions USD
$80
$30
$60
$20
$40
$10
$20 $-
$- $(10)
2009 2010 2011 2012e 2009 2010 2011 2012e
4

5. Balanced Portfolio - Global Exploration and Operations
ICELAND:
 2 geothermal power plants with 172 MW capacity (67% Alterra)
 Additional 130 MW of defined expansion plans
 80 MW of expansions underway
WESTERN CANADA:
 Toba-Montrose hydro plants with 235 MW capacity (40% Alterra)
 Dokie wind farm with 144 MW capacity (51% Alterra)
 124 MW Upper Toba expansion and 156 MW Dokie 2 expansion
WESTERN USA:
 16 MW geothermal power plant with expansion potential
 Excellent government support for geothermal projects
 6 other early stage properties
CHILE
 Very large (320 MW) inferred resource discovered at low cost
 Emerging renewable power market with world-class potential
 Strong government support for geothermal projects
 Active exploration concessions covering in excess of 158,000 ha
FURTHER GROWTH ASSETS IN ONTARIO, BC, ITALY AND PERU
5

6. Assets and Pipeline
Capacity
Project Gross AXY Share Technology
Operating (2011)
Soda Lake 16 MW 16 MW Geothermal
Svartsengi 72 MW 48 MW Geothermal
Reykjanes 1 & 2 100 MW 67 MW Geothermal
East Toba &
235 MW 94 MW Hydro
Montrose
Dokie 1 144 MW 73 MW Wind
Total Capacity 567 MW 298 MW
Annual Net Generation 1,425 GWh
Operating Additions (2016)
Upper Toba 124 MW 62 MW Hydro
Ontario Solar 50 MW 5 MW Solar
Reykjanes 3 & 4 80 MW 54 MW Geothermal
Dokie 2 156 MW 80 MW Wind
McCoy 15 MW 15 MW Geothermal
Mariposa 50 MW 25 MW Geothermal
Eldvörp 50 MW 34 MW Geothermal
Other (e.g. Chile, Iceland) 200 MW 200 MW Geothermal
Pipeline Total 725 MW 475 MW
Total Capacity 1,292 MW 773 MW
6

7. BC Opportunity
British Columbia’s demand for power is expected to
grow significantly in the next 3-5 years
• LNG plants in Kitimat
• Mining growth
• General population growth
Clean renewable power sourced from IPPs is
expected to be a critical source of new supply
Alterra is uniquely positioned to benefit from this
new demand
• Built and operate largest wind farm and run-of-river
plants in British Columbia
• History of delivering on-time and on-budget
• Established reputation with First Nations
• Large portfolio of operations, expansions and
development projects
• Largest IPP in the province
7

8. Outstanding Developer Track Record
Successful developer track record across renewable
technologies
 Proven ability to develop and deliver large new assets at
greenfield locations
 Development teams from all these projects remain
substantially intact
Recent project successes
Wind Dokie 144 MW 2011 COD
Hydro Toba Montrose 236 MW 2010 COD
Geothermal Reykjanes 100 MW 2006 COD
Near term organic growth - all near existing operations
Wind Dokie 2 156 MW COD 2014E
Hydro Upper Toba 124 MW COD 2015E
Geothermal Reykjanes 3/4 80 MW COD 2013-14E
8

9. Leading Growth Profile
Alterra has one of Canada’s largest clean energy development pipelines
1,000 5,000
900 4,500
800 4,000
700 153 3,500
600 3,000
Net MW
156
GWh
500 2,500
153
400 2,000
153
300 73
73 156 1,500
73
94 94 460
200 94 1,000
94 94
100 191 167 187 212 500
147 133
0 0
2010 2011 2012 2013 2014 2015 2016
GEOTHERMAL HYDRO WIND SOLAR
Existing Generation Capacity Additions
Soda Lake Dokie 1 ABW Solar Reykjanes 3 Reykjanes 4 Eldvörp Pipeline
HS Orka Dokie 2 Mariposa
Toba Montrose Upper Toba
9

10. Analyst Coverage and Capital Structure
C APITAL S TRUCTURE : PRO- FORMA NET INTEREST
MARKET CAPITALIZATION (30 MAR 2012) C$ 284 MM
CASH (31 DEC 2011) US$ 32 MM
TOTAL ASSETS (31 DEC 2011) US$ 885 MM
LONG TERM DEBT (31 DEC 2011) US$ 501 MM
FIRM CONTACT EMAIL
Canaccord Genuity Jared Alexander jalexander@canaccordgenuity.com
Cormark Securities MacMurray Whale mwhale@cormark.com
Jacob Securities John McIlveen jmcilveen@jacobsecurities.com
Mackie Research Capital Matthew Gowing matthew.gowing@researchcapital.com
Mirabaud Securities Gus Hochschild gus.hochschild@mirabaud.co.uk
National Bank Financial Jeremy Mersereau jeremy.mersereau@nbfinancial.com
Pritchard Capital Partners Veny Aleksandrov valeksandrov@pritchardcapital.com
Raymond James Securities Steven Li steven.li@raymondjames.ca
Salman Partners Mike Plaster mplaster@salmanpartners.com
INDEX COVERAGE
S&P/TSX Clean Technology Index
RENIXX Renewable Energy Industrial Index
10

11. Recent news
Succession of positive events:
 Strong second half 2011 results
 Toba Montrose and Dokie final completions
 Dokie term conversion
 Permit for Reykjanes expansion
 Icelandic Pension Fund sale and option exercise
 New resource concessions in promising new markets – Italy and Peru
 Toba Montrose and Dokie PPA bumps
 Homalco First Nation agreement for Bute Inlet project
11

12. Looking ahead
Looking ahead to 2012:
 Prepare near-term projects for construction:
Dokie 2: installation of new meteorology towers
Upper Toba: design optimization
Reykjanes: refresh capital / financing plans
 Prepare for next-phase drilling with partner at Chile
 Continue long-term project development (BC, Peru, Italy)
 Opportunistic acquisitions: wind, geothermal and hydro
 Continue work in British Columbia for positive regulatory/political
environment
 Advance partnership activity:
Potential new projects with current partners
New geothermal development partners
Develop additional financial partners
 Stay the course / continue the mission
12

13. Value Proposition Summary / Next Milestones
VALUE PROPOSITION
Core Producing Assets - long term, stable cash flow
Diversified Assets - by geography & generation type
Larger Size - better liquidity, lower cost of capital
Outstanding Project Pipeline - geothermal, hydro, wind assets
could triple output by 2016
Exceptional operating, financial and development teams
NEXT MILESTONES
Iceland PPA and financing for next 130 MW expansion
Chile partner financing and next phase of drilling at Maule
Exploration of new Peruvian and Italian concessions
Continuing expansion at Soda Lake and US assets
Advancement of Dokie 2 and Upper Toba projects
Ongoing M&A opportunities
13

14. APPENDICES
TSX : AXY
14 APR 2012 www.alterrapower.ca

15. Senior Management
Outstanding development, financial and operations expertise
Ross Beaty: Executive Chairman
Geologist and resource company entrepreneur with 40 years experience in the international minerals industry. In early 2008,
Mr. Beaty founded Magma Energy Corp to focus on international geothermal energy development. In 2011 Magma and
Plutonic Power merged to create Alterra Power. Mr. Beaty is the Director of the Nature Trust B.C. and patron of the Beaty
Biodiversity Center at the University of B.C. Recipient of numerous awards, including the prestigious Viola Macmillan Award.
Donald McInnes: Executive Vice-Chairman
Mr. McInnes was the founder, Vice-Chair and CEO of Plutonic Power Corp. He currently serves as Vice-Chair of the Clean
Energy Association of British Columbia and is a director of Prostate Cancer Canada, the Powell River Economic
Development Society, the Duke of Edinburgh's Award-British Columbia and Yukon Division and is a governor of the British
Columbia Business Council.
John Carson: Chief Executive Officer
Mr. Carson is a highly experienced renewable energy business leader with a core expertise in structuring and leading
financial transactions. His financing experience includes senior positions held with GE Energy Financial Services, Terra-Gen
Power and Noble Environmental Power. He has closed over US$2 billion of transactions, primarily in the renewable energy
space, including geothermal, wind and hydro transactions.
Bruce Ripley: Chief Operating Officer
Mr. Ripley has 30 years of engineering experience in the hydroelectric and heavy civil industries, including 16 years with BC
Hydro where he was Vice President of Engineering. He oversees all technical and commercial work at Alterra’s assets
including operations and exploration. He has worked on development, design, construction, operations and maintenance
projects in Canada, USA, China, Philippines and Australia.
Peter Wong: Chief Financial Officer
Mr. Wong joined the Company in 2005; over the last 18 years he has held a number of progressive senior financial
management positions with publicly listed mining and technology companies at the venture, development and operational
stages. Mr. Wong articled with the accounting firm of Deloitte and Touche and obtained his CA designation in 1992. He is a
current member of the Institute of Chartered Accountants of BC and holds a B.Comm. from the University of B.C.
15

16. Board of Directors
Ross Beaty  Mr. Beaty is a geologist and resource company entrepreneur with more than 40 years of experience in the international
minerals industry, Founder and chair of Magma Energy Corp and Pan American Silver (TSX: PAA, NASDAQ: PAAS) and
Executive Chairman several other resource companies that were successfully built and divested.
Donald A. McInnes  Mr. McInnes was the Founder, Vice-Chair and CEO of Plutonic Power Corporation. He currently serves as Vice-Chair of the
Clean Energy Association of British Columbia and is a director of Prostate Cancer Canada, the Powell River Economic
Executive Vice-Chairman Development Society, the Duke of Edinburgh's Award-British Columbia and Yukon Division and is a governor of the British
Columbia Business Council.
David Cornhill  Mr. Cornhill is the founder, Chairman and Chief Executive Officer of AltaGas Income Trust, one of Canada's largest energy
infrastructure groups, focused on gas and power infrastructure and renewable energy (wind and hydro). With more than 25
Director years of experience in the energy industry, Mr. Cornhill also sits on several private and public boards including AltaGas Utility
Group and Ivey Business School.
David O’Brien  Mr. O'Brien is retired as President and Chief Executive Officer, Toronto Hydro Corporation where he served between 2004-
2009. Mr. O'Brien was previously with Ontario's Ministry of Energy, initially as Associate Deputy Minister of Energy and
Director subsequently as Deputy Minister. Mr. O'Brien has also served as President and Chief Executive Officer of Enersource
Corporation, the parent company of Hydro Mississauga. Mr. O'Brien is a member of the Board of OMERS, Apex Co-Vantage
and the Summerhill Group, as well as a strategic advisor on energy matters to a number of other companies.
Donald Shumka  Mr. Shumka is Managing Director of Walden Management Ltd., a financial consulting firm. Mr. Shumka received a Master of
Business Administration from Harvard University. From 1966 to 1979 he worked in a variety of positions in the forest industry,
Director from 1979 to 1989 he was Vice President and Chief Financial Officer of West Fraser Timber Co. Ltd. and from 1989 to 2004
he headed the Forest Products Group for two Canadian investment banks. Other public company boards include Eldorado
Gold Corp and Paladin Energy Ltd.
Paul Sweeney  Mr. Sweeney has over 30 years experience in financial management of mining and renewable energy companies. From
2007-2010, he was Executive Vice President, Corporate Development, of Plutonic Power Corporation. He has served as
Director CFO of a number of successful mineral resource companies including Canico Resources, Sutton Resources and Gibraltar
Mines and is a director of several resource companies including Pan American Silver Corp. where he chairs the audit
committee.
Walter Segsworth  Mr. Segsworth recently served as Chairman of Plutonic Power Corporation. He is past President and Director of Westmin
Resources. Upon the takeover of Westmin by Boliden in 1998, Mr. Segsworth joined Homestake Mining Company of
Director California where he was subsequently appointed President, Director and Chief Operating Officer and served until the merger
with Barrick in early 2002. He is past Chairman of both the Mining Associations of BC and Canada and was named BC's
Mining Person of the Year in 1996.
16

17. Overview - Toba Montrose in B.C.
Alterra owns a 40% economic interest in two recently completed run of river
hydroelectric generation facilities in southwestern British Columbia
Facilities  East Toba River and Montrose Creek
Capacity &
 236 MW generating 727 GWh / year
Production
 60% - GE EFS
Ownership
 40% - Alterra
Start of Operation  2010
Power Purchase
 EPA to 2045 with BC Hydro
Agreement
 $470 MM total project debt with 35 year amortization and
Project Debt
6.4% effective interest rate
 2011E project revenue of $74 MM
Revenue
• Includes $10/MWh ecoEnergy Program incentive
 2011E project EBITDA of $60 MM
EBITDA
• $24 MM net EBITDA to Alterra
17

18. Overview - Dokie Wind in B.C.
Alterra owns a 51% economic interest in the recently completed Dokie Wind
Farm, located in northern British Columbia
Facilities  Dokie Wind Farm
Capacity &
 144 MW generating 330 GWh annually
Production
 51% - Alterra
Ownership
 49% - GE EFS
Start of Operation  March 2, 2011
Power Purchase
 EPA to 2036 with BC Hydro
Agreement
 $175 MM total project debt with 20 year amortization and
Project Debt
7.2% effective interest rate
 Annual project revenue of $35 - $40 MM
Revenue
• Includes $10/MWh ecoEnergy Program incentive
 Annual project EBITDA of $27 MM
EBITDA
• $14 MM net EBITDA to Alterra
18

19. Overview - Svartsengi and Reykjanes in Iceland
Alterra’s 67% - owned subsidiary HS Orka owns two geothermal power plants in
southwestern Iceland
Facilities  Svartsengi and Reykjanes
Capacity &  172 MW generating 1,315 GWh /year
Production  Thermal (hot water) production 150 MW th
 67% - Alterra
Ownership
 33% - Jarôvarmi (Icelandic Pension Funds)
Start of Operation  1978 for Svartsengi and 2006 for Reykjanes
 Three PPAs with varying terms through to 2026;
Power Purchase additional power sold on one-year contracts
Agreements
 36% of power sales paid in USD and linked to aluminum price
 $170 MM total company debt with average 9 years to maturity
Project Debt
and average 2.645% effective current interest rate
Revenue  2011E project revenue of $64 MM
EBITDA  2011E project EBITDA of $20 MM
19

20. Overview - Soda Lake in Nevada
Alterra owns a 23 MW geothermal power plant near Fallon in northern Nevada
Facilities  Soda Lake 1 and Soda Lake 2
Capacity &  23 MW, currently operating at 16 MW gross and generating
Production 84 GWh /year
Ownership  100% - Alterra
Start of Operation  1987 & 1991
Power Purchase
 Two PPAs to 2020 with NV Energy
Agreement
Project Debt  None
Revenue  2011E project revenue of $5 MM
EBITDA  2011E project EBITDA of $1 MM
20

21. Overview - ABW Solar in Ontario
Alterra has an option to acquire a 10% interest in a portfolio of solar facilities
from First Solar, to be built in southern Ontario
Facility  3 solar facilities in southwestern Ontario
 Amherstburg – 10 MW
Capacity  Belmont – 20 MW
 Walpole – 20 MW
Proposed  90% - GE EFS
Ownership  10% - Alterra
 Late 2012 E
Start of Operation
 Construction to start in 2Q 2012
Power Purchase
 20 year EPA with Ontario Power Authority
Agreement
Project Debt  TBD
EBITDA  $3 MM net annual EBITDA to Alterra
21

22. Overview - Upper Toba Expansion Project in B.C.
A power purchase agreement and permitting are in place for additional run of
river hydro plants near the Toba Montrose facilities in southwestern B.C.
 Jimmie Creek and Upper Toba River
Locations
 In the close vicinity to existing Toba Montrose facility
Capacity &
 124 MW generating 316 GWh annually
Production
 50% - Alterra
Ownership
 50% - GE EFS
 Environmental Assessment Certificate granted and Water
Permitting
Licence pending
Power Purchase
Agreement  In place with BC Hydro
Begin Construction  1Q 2013 E
On Line  2Q 2015 E
 Completion of preliminary engineering & cost estimation
Notes targeted for end of 2011
 Utilizes existing transmission and road infrastructure
22

23. Overview - Reykjanes 3 & 4 Expansion Project in Iceland
The Reykjanes geothermal power plant in southwestern Iceland has substantial
existing well capacity and is permitted for an expansion of production
Location  Existing Reykjanes facility and steam field
Capacity &
 80 MW generating 687 GWh annually
Production
 67% - Alterra
Ownership
 33% - Jarôvarmi (Icelandic Pension Funds)
Permitting  Completed
Power Purchase
Agreement  H1 2012 E
Begin Construction  H2 2012 E
 Reykjanes 3 - 50 MW in H2 2013 E
On Line
 Reykjanes 4 - 30 MW in H1 2014 E
 High pressure 50 MW turbine for Reykjanes 3 already on site
Notes  Reykjanes 4 will run on existing well field output in a 30 MW
low pressure turbine
23

24. Overview - Dokie 2 Expansion Project in B.C.
The Dokie Wind Farm in northern B.C. is permitted for a 156 MW expansion
Location  Undeveloped ridgelines within Dokie Wind Farm area
Capacity &
 156 MW generating 357 GWh annually
Production
 51% - Alterra
Ownership
 49% - GE EFS
Permitting  Existing permitting allows total with Dokie 1 of 300 MW
Power Purchase
Agreement  Opportunity to discuss with BC Hydro and other off-takers
Begin Construction  1Q 2013 E
On Line  3Q 2014 E
 Wind assessment, turbine layout, infrastructure and financial
Notes studies in progress
24

25. Overview - Mariposa Development Project in Chile
The Mariposa geothermal field in Chile has an inferred-level capacity of 320 MW
 In the Andes Mountains in south-central Chile, approximately
Location
300 km south of Santiago
 320 MW inferred resource with promising characteristics
Capacity &
Production
 Exploitation Concession granted for first phase of 50 MW
 Permanent production concession at Laguna del Maule
Concessions  Resource area continues on adjacent Pellado concession
 Alterra has a third adjacent concession at Los Cristales
 Letter authorizing first round of exploratory holes
Permitting
 Baseline prepared for subsequent permitting
Exploration &  Access road and infrastructure advanced - 2010
Development  Three slim holes completed by core drilling - Nov 2010
Next Phase  Deep rotary and wide diameter drilling planned - 2012 E
On Line  2016 E
 Recent volcanism and hot springs near concession
Notes
 Seeking investment partner for next phase
25

26. Overview - Mensano and Roccastrada geothermal projects in Italy
Alterra’s exploration concessions in Italy are in the historic and promising
Larderello region of Tuscany
 100% Alterra
Ownership
 Interest from multiple prospective partners
 32 geothermal plants already operating in region
Opportunity  Attractive power prices as high as €180 /MWh
 Strong public and government support for clean power
CHARACTERISTICS Roccastrada Mensano
South-east of Larderello in
Location South of Larderello in Tuscany
Tuscany
Size 27,190 hectares 21,256 hectares
o
• Nearby 1,000 m exploratory • Temperatures over 150 C
well had temperatures up to at 2,000 m depth
100oC • Thermal springs and
Known Geology
• Hot spring and high heat hydrothermal alteration
flow areas
• Potential reservoir within • Large geothermal system
3,000 m depth inferred with two potential Mensano
• Estimated temperature reservoir targets:
o o
Potential 200 C - 250 C. i) at 1,000 to 2,000 m
with about 150oC Roccastrada
ii) at 2,800 to 3,000 m
o
with about 200 C
Prospecting to build a Detailed exploration program
Work Program geothermal system and define to confirm high enthalpy
targets for exploration wells resources
26

27. TSX : AXY
27 APR 2012 www.alterrapower.ca