Sun Zia Wind

May 2017

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© 2015

Company Overview

About Pattern Development

▪ Pattern Energy Group LP (Pattern Development) is a leading

independent wind, solar and transmission development company

▪ We develop and construct renewable energy and transmission

assets in the United States, Canada, Mexico, Chile, and Japan

▪ Our highly-experienced team has brought more than 4,500 MW of

wind power to market

▪ By combining creativity, focus and a scientific approach, we have

advanced our position as an industry leader and shown consistent,

groundbreaking work

– Our team was the first to successfully develop a utility-scale wind

energy project on Native American lands in the United States, on

the Gulf Coast of Texas, in the State of Nevada, and in the

Commonwealth of Puerto Rico

▪ Our current development pipeline includes 5,900 MW of wind and

solar power projects in addition to transmission projects

About Pattern Development

▪ We have expertise in all project stages: resource analysis, site

development, finance, construction and asset management

▪ Pattern Development’s affiliate company, Pattern Energy Group

Inc. (Pattern Energy), is an independent power company listed on

the NASDAQ (“PEGI”) and Toronto Stock Exchange (“PEG”)

– Pattern Energy has a portfolio of 16 wind power projects with a

total owned interest of 2,282 MW in the United States, Puerto

Rico, Canada, and Chile

▪ Strong commitment to delivering the highest value for our partners

and the communities where we work while promoting

environmental stewardship and corporate responsibility

▪ Offices in San Francisco, Houston, San Diego, New York, Toronto,

Mexico City, Santiago, and Tokyo

Our Values

▪ We use science and innovation to drive breakthroughs

– Utilizing a science-based approach drives our groundbreaking work

– Helps us discover important prospects, raise the bar for availability and

production, and deploy new technology to mitigate environmental impacts

▪ We develop and build high quality projects

– Focus on quality at every step of the development and construction

process to maximize production and build project to last for the long-term

– Use sophisticated engineering techniques, hire elite contractors, and

procure state-of-the-art equipment from leading industry vendors

▪ We protect the safety of our employees, contractors and the public

– No task is so important or urgent that it cannot be done safely

– Safety is incorporated into our decision making and considered in all

stages of project lifecycle

Community & Environmental Commitments

▪ We support the communities in our project areas

– Ensure our projects succeed by ensuring the project area communities

succeed

– Strive to build strong relationships with landowners, local officials, and

community members

– Earn trust through communication and collaboration and work to

structure our projects so benefits spread to the local communities

▪ We respect the land and the environment

– Consider it our responsibility to produce and transport clean, renewable

energy to consumers with the least amount of natural impact

– Aim to exceed industry standards and be a leader in the advancement of

best practices for the identification, assessment, and mitigation of our

environmental impacts

Core Competencies

Finance & Permitting

▪ Contract negotiation

▪ Project finance

▪ Permits / Real estate finalization

▪ Insurance

▪ Third party verification

▪ Hedging

▪ Community Relations

Origination & Development

▪ Greenfield / Acquisition

▪ Meteorology and analytics

▪ Community support

▪ Utility and supplier relationships

▪ Transmission /

Interconnection planning

Construction

▪ Engineering

▪ Construction management

▪ Project administration

▪ Site Biological and Archeological

monitoring and mitigation

▪ Environmental, Health and

Safety management

Corporate Administration & Support

Cohesive Management Team Since 2002

0

500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500

5,000

FORMED

PATTERN

DEVELOPMENT

9

34%Compounded

annual growth rate

2003–2015

2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

Cumulative Megawatts (financed and managed by Pattern Development management)

LAUNCHED

PATTERN

ENERGY IPO

4,500 MW+of capacity

30+wind projects completed

$12 billion+energy infrastructure assets financed

Ownership in Pattern Energy Group Inc.

Publicly traded company

Public

Shareholders

Ownership

(1) Represents shares held by the public shareholders as well as certain directors and members of management

~77%(1)

~23%

▪ NASDAQ listing: PEGI

▪ TSX listing: PEG

IPO on October 2, 2013

Pattern Development and Pattern Energy Portfolios

Pattern Development Pattern Energy

Chile JapanCanada / United States / Mexico

Owner

Meteorological Team

Pattern Meteorological Capabilities

• Development and operational focused scientific team with

backgrounds in atmospheric science and physics

• Project prospecting through high performance computing

center (MHPCC) and mapping

• Meteorological tower data quality control and maintenance

• Project siting and optimization

• Turbine site suitability analysis

• Calculate project uncertainties

• GIS and environmental mapping

• Operational wind farm assessments

• Short term forecasting and day ahead market analysis

13

Project Mapping and Visualizations

14

• Meteorological team is well versed

in GIS mapping and atmospheric

modeling

• Visualizing each project provides

another level of analysis for not only the

meteorological team, but also for

developers and community relations

Broadview Development

• Total Project nameplate capacity 544 MW

• BEJN: 181.7 MW (79 turbines planned) Q1 2017

• BEKW: 142.6 MW (62 turbines planned) Q1 2017

• GWEC 220 MW (96 turbines planned) Q4 2017

• Siemens 2.3 MW turbines with 108 m rotor

• Connecting with Western Interconnect LLC (formerly Tres Amigas “Phase Zero”

transmission line) at 345kV to Blackwater Substation with delivery into California

Market (CAISO)

• Transmission service through the Public Service New Mexico (PNM) and Arizona

Public Service (APS) transmission system

• Executed two 20 year power sale agreements with Southern California Edison (SCE)

for BEJN and BEKW

• Executed one 25 year power purchase agreement with Sacramento Municipal Utiltity

District (SMUD)

Key Project Information

~ 14 miles (324 MW on 42,000 acres)

~ 8 miles

BROADVIEW ENERGY PROJECTs

~ 22 miles (544 MW on 85,000 acres)

BEJN

BEKW

GRADY

BEJN

SWITCHYARD

WESTERN INTERCONNECT

Transmission Enabled Wind

SunZia Southwest Transmission Project

Corona Area Land (Inset with State and Federal land)

Torrance County

Lincoln County

SNZ Project Status

23

▪ 1,500 MW of Land Control

▪ 145,000+ acres under option

▪ ~ 900 MW PTC qualification via “Start

of Construction”

▪ Initial foundations for 30 turbines

▪ ~ 42,000 ft. of access roads

▪ Purchased turbines to allow for full PTC

qualification of 1,500 MW of wind

projects at SNZ project sites

▪ Over 5 years of wind data collected

▪ Installed and/or upgraded instruments

on 30 met tower masts

Commercial Interest Impact on Schedule

▪ Interest in New Mexico’s wind resource is magnified by the economic benefits of the

Federal wind production tax credit (PTC)

▪ To qualify for 100% of the PTC, the wind project must be in service by 12/31/2020

▪ Interested wind developers are looking to secure Power Purchase Agreements,

based on a price that includes 100% of the PTC

▪ Every year after 2020, the value of the PTC diminishes

Start of Construction

Federal Production Tax Credit

Example of Initial Excavation: Turbine Location

Start of Construction

Federal Production Tax Credit

Example of Initial Excavation: Turbine location with Mud Mat

Start of Construction

Federal Production Tax Credit

Example of Initial Excavation: connecting access roads

Start of Construction

Federal Production Tax Credit

Example of Initial Excavation: connecting access roads

Loralee Hunt

Manager, Project Development

Pattern Energy Group LP

Phone: 575.317.1574

Email: loralee.hunt@patternenergy.com