Meet the Ally Team of Energy Industry Experts


Brian Walterbach

Chief Operating Officer, Founding Partner
Lenexa, KS

Brian is a true native in the energy solutions community. After graduating from Rockhurst University in 2006, he began working with Kansas City based American Energy Solutions, where he learned...

Shawn Rash

BEP, CEM, CEP, CDSM, NASCLA & ICC National Certified General Contractor

President, Founding Partner
Fredericksburg, TX

Shawn leads our Business Development team with his passion for service, an intuitive curiosity that allows him to see opportunities where others do not, and a remarkable...

Troy Moran

Executive Vice President, Founding Partner
Littleton, CO

Troy has been building and leading high-performing teams for over 30 years in the energy, lighting and electrical industries. Troy is currently responsible for the design, development and...

Raymond A. Pustinger


Chief Executive Officer
Carlsbad, CA

Ray has been building companies, relationships, and brands in the energy solutions industry since 1989, leading three different energy solutions businesses to scaled growth and sustained...

Shane Mathis

Chief Executive Officer, Ally RNG and Chief Strategic Officer, Ally Energy Solutions
LeCompton, KS

In his roles as CEO of Ally Renewable Natural Gas and Chief Strategic Officer of Ally Energy Solutions, Shane combines his desire to establish new revenue streams for farm...

John Mahoney

Director, Board Member
Loch Lloyd, MO

As a business builder, board member and a mentor, energy industry veteran John Mahoney is a key contributor to Ally’s business strategy and scale objectives. ..

Leadership Team

Stephen Farrell


Executive Vice President
Windsor, CO

Based in Denver, Stephen leads the mechanical engineering, industrial controls, operational technology and supporting project execution teams. His group is responsible for the successful installation of all...

Erlan Rice

Vice President, Operational Technology Special Projects Group
Lenexa, KS

Erlan is a systems integration and process controls specialist with more than thirty years’ experience in the design and operation of electrical and electronics...

Troy Knight


Vice President, Distributed Energy Resources
Parkville, MO

With extensive experience in the electric utility and ESCO industries, Troy Knight is focused on team management and efficient project...

Evan Bowers


Vice President, Applied Technology Group
Conway, AR

With a deep understanding of utility-side efficiency programs and years of project management experience, Evan brings a high level of insight...

Kevyn Smith

Vice President, Biogas & Industrial Gas
Houston, TX

Kevyn Smith grew up on a small hay farm in Appalachia that bordered the Great Smokey Mountains National Park. After completing his master's degree at North Dakota State University...

Michael Bowman

Vice President, Power Quality

Michael is a sales and business development veteran, with more than fifteen years’ experience in Power Factor Correction analysis and turnkey implementation...

Charles Torres


Vice President of Development & Pre-Construction
Loveland, CO

With 25 years’ experience in the oil and gas industry, Charles is a highly accomplished engineering and project management expert. As vice president of development and...

Joe Janes

Vice President, Key Accounts
Denver, CO

As a customer-focused and relationship-driven sales professional dedicated to fostering long-term business connections, Joe Janes is committed to the Ally philosophy which places...

Tim Begnoche

Assistant Vice President, Client Services
Lenexa, KS

Tim combines his skills as an analyst and researcher with his interest in energy efficiency and sustainable business to effectively source and secure utility backed...

Henry Fox

Director, Mechanical Construction
Grand Junction, CO

After several months as a site superintendent and project manager, Henry Fox now serves as Ally’s Director of Mechanical Construction. Henry brings more than thirty years...

Chris Long

Director, Lighting & Electrical Construction
Denver, CO

Chris leverages his years of experience as a field electrician and electrical foreman to help implement industrial, manufacturing and distribution energy efficiency...

Fred Vergenz II

Director, Software Development
San Marcos, CA

Fred manages the teams responsible for next-gen supply and demand-side energy monitoring and analytics products. He is an expert with multiple programming languages...

Nathaniel Mart

Director, Project Development
Rochester, NY

With extensive lighting and mechanical experience, Nate collaborates with business development, applied technology, and lighting development teams to help Ally maintain its position...

Andrew Torres, P.E.

Director of Biogas and DER Construction
Erie, CO

With more than 30-years’ experience in oil and gas operations, facilities and pipeline engineering, construction and project management, Andrew...

Applied Technology Group

Greg Stevens

Solutions Architect, Principal Engineer
Carlsbad, CA

Greg has specializations in cogeneration, waste heat recovery, energy storage, refrigeration and HVAC. With decades of experience developing demand-side...

Calvin Wohlert


Principal Engineer
Denver, CO

Calvin sets the standard for our process engineering, industrial refrigeration, cogeneration, and other complex solutions. Whether it is a CO2 conservation...

Jackie Manatt


Energy Engineer
Fayetteville, AR

Jackie is a detail oriented Energy Engineer with years of experience identifying, implementing, and verifying energy efficiency projects...

Ross Smith

Electrical Mechanical Engineer
Wheat Ridge, CO

Ross brings more than a decade of experience in the design and installation of industrial power systems to his role as an Ally project manager. As an on-site supervisor and team leader...

Cliff Eubanks

Logansport, LA

With 27 years of experience in the lighting retrofit industry and millions of square feet of audited facility space under his belt, Cliff Eubanks is an expert at identifying the correct lighting solutions...

Dave Llewellyn

Senior Lighting & Controls Designer
Snoqualmie, WA

With over 30 years of experience in high-performance lighting and controls, Dave applies his professional experience and subject matter expertise to...

Matthew Knight


Biogas/Industrial Gas Engineer
Kansas City, MO

Matthew works with Ally’s RNG team as a system design and field engineer for biogas projects throughout the United States. Prior to joining Ally, Matthew built an experience profile that...

Construction Management

Jeremy Anderson

Senior Project Manager
Kuttawa, KY

Jeremy has twenty-years of experience as an electrician, ten years of which have been spent implementing projects within the lighting retrofit industry....

Jeremy Calori

Master Electrician

Senior Project Manager, Electrical/Mechanical
Highlands Ranch, CO

With twenty-five years in the construction industry – thirteen of which have been spent right here at Ally Energy Solutions — Jeremy Calori...

Troy Weston

Senior Project Manager
Nashville, TN

Troy has decades of experience as an electrician and project manager and is an expert at minimal-impact lighting installation. As a project communication liaison...

Jeffrey Floyd

Senior Project Manager
Lenexa, KS

With a background in alternative transportation fuels and renewable energy, and years of experience helping companies migrate away from fossil fuel dependencies, senior...

Michael Pullen

Sr. Project Manager, Power Quality
Midlothian, TX

With a background that includes estimating, purchasing and general project management, and specialization in industries including manufacturing...

Graig Robinson

Project Manager
Wylie, TX

With twenty years of experience in the manufacturing industry, Graig uses his extensive knowledge of plant operations, facilities management, and engineering...

Vincent Couldry

Project Manager
Saint Joseph, MO

Vincent uses his extensive background in commercial construction, field engineering, estimation, scheduling, and issue resolution to efficiently manage the day-to-day...

Jeffry Peters

Site Superintendent
Lenexa, KS

Jeffry has fifteen-years’ experience in the industrial electrical space. Throughout his career, he has worked as a superintendent, operations manager, estimator, and project...

Tanner Neil

Site Superintendent
Glendale, AZ

Tanner is responsible for managing Ally’s industrial manufacturing efficiency projects. In this capacity, Tanner helps ensure the adherence to all safety...

Ivan McClellan

Site Superintendent
Grand Junction, CO

Ivan is responsible for the day-to-day safety and jobsite efficiency for manufacturing facility retrofit projects. Providing oversight for both people and...

Randy Sounakhen

Project Coordinator
Olathe, KS

With a focus on strategic execution and relationship-building, Randy provides both administrative and technical coordination support for Ally projects...

Operational Technology Special Projects Group

Justin Pajl

Process Engineer
Sioux City, IA

Justin has more than fifteen years of experience in electrical and mechanical engineering. As a process controls expert, Justin works with Ally team members...

Travis Williams

Process Engineer
Loveland, CO

As a former systems-engineer and director of electrical technologies, Travis Williams brings more than twenty-two-years’ experience in the fields of electrical automation design, industrial...

Industrial Controls

Jordan Edwards

Controls Engineer
Shawnee, KS

Jordan is responsible for the design and troubleshooting of control systems for some of Ally’s largest industrial manufacturing clients. Jordan has spent years...

Emanuel Torres

Controls Engineer
Independence, MO

Emanuel specializes in automation, with an extensive background in mechanical installations, upgrades, and troubleshooting. His controls expertise includes...

Client Services & Support

Mark Atkinson

Carlsbad, CA

With more than 25 years of experience as both a Financial and Administrative Controller working within the industrial manufacturing and energy solutions sectors, Mark understands the Ally...

Tim French

Senior Accountant
San Marcos, CA

Ally senior accountant, Tim French has a diverse accounting background, with much of his experience being in the construction industry and related fields. A skilled communicator...

Sarah Holt

Administrative Support Specialist
San Marcos, CA

Based in Ally’s offices in San Marcos, CA, Sarah is the point of contact for all payroll and accounts payable questions. Sarah’s prior experience includes time at a...