Deprecated: Unparenthesized `a ? b : c ? d : e` is deprecated. Use either `(a ? b : c) ? d : e` or `a ? b : (c ? d : e)` in /home/cenergy2015/public_html/wp-content/plugins/wpgform/wpgform-post-type.php on line 795
Meet Our Team | Change Energy

Meet Our Team

Originally founded by Al Davidson in 1991 as DMA Technical Services, the company expanded into a joint partnership with Ry Smith in 2009. At the same time the company took on its new name, Change Energy Services, to reflect emerging business opportunities for compressed gas fuelling technologies. A service group within Change Energy continues to conduct business as DMA.

Change Energy Services

Ry Smith 2Rymal (Ry) Smith, P.Eng.


Prior to Change Energy, Rymal (Ry) Smith held positions where he led the full development effort of a wide range of alternative energy solutions. Most recently as Director of Hydrogen Village, Ry promoted and facilitated commercially viable applications of hydrogen and fuel-cell infrastructure in the Greater Toronto Area. This was an initiative developed by private companies, supported by all levels of government and globally recognized and replicated as an effective model for energy technology awareness and adoption. Ry’s first position dedicated to compressed gas projects was as the General Manager of the Natural Gas Vehicle Division of Union Gas Ltd. In this role he designed, developed, and managed the installation of over 30 Compressed Natural Gas (CNG) stations for vehicle refuelling. Additionally, he managed a network of private and retail CNG stations supporting 8,000 vehicles including large on-site fleets and public retail stations. Ry was subsequently hired as the Director of Transportation Business Development with Stuart Energy, where he designed and project managed the company’s world-wide Hydrogen Energy Stations. These complex installations integrated on-site hydrogen production, power generation and vehicle refuelling. Ry is Chair of the Standards Committee for the Canadian Natural Gas Fuelling Stations Installation Code (CSA B108). He actively participates in the development of other Codes, Standards and Regulations for the Hydrogen and Natural Gas Vehicles industries and sits on the Education & Outreach Committee. In 2012 he authored Modelling Sustainable Natural Gas Vehicle End Use Applications (jointly with NRCan) as a key component of the Natural Gas Use in the Canadian Transportation Sector-Deployment Roadmap. Ry is a professional engineer in the Provinces of Ontario, Nova Scotia, New Brunswick and Newfoundland.

Al DavidsonAl Davidson, P.Eng.


Al Davidson, founder of DMA Technical, is a Design Engineer and Project Manager specializing in consulting and implementation of alternative energy systems. With over 35 years of global experience and demonstrated expertise in planning, design engineering, safety engineering and project management services Al has served the full range of clients including industrial, commercial, institutional and utility. Alternative Energy installations designed by Al are in service in North America, Europe and Asia. Depending on the project, these installations deliver and manage a full range of compressed gas fuels including compressed natural gas, liquid natural gas, compressed hydrogen, and compressed hythane. The depth and breadth of Al’s expertise is demonstrated by the following projects:

  • Engineering Design and Safety Analysis for the NextEnergy Center in Detroit, specifically their Alternative Fuels Platform including Hydrogen and Natural Gas Systems
  • Engineering Design, Safety Analysis and Risk Assessment for Wind to Hydrogen projects and a Gas Component Manufacturer.
  • Engineering Design work for City of Toronto, TTC, Stuart Energy and other clients (Natural Gas and Hydrogen infrastructure systems).
  • Development of an Integrated Management System (Safety, Environment and Quality) for the NextEnergy Center to permit ISO or equivalent certification.
  • Natural Gas Vehicle Fuelling Infrastructure projects for Union Gas.

Al has strong professional affiliations including Professional Engineers of Ontario (PEO), American Society of Heating Refrigerating and Air Conditioning Engineers (ASHRAE), and Ontario Society of Professional Engineers (OSPE).

Stephanian_Greg_ 5x5Greg Stephanian, P.Eng.

Design Engineer

Greg Stephanian heads up Change Energy’s alternative energy design team bringing nearly 30 years of experience in process and mechanical engineering with a focus on alternative energy and transportation for the past 15 years. He is an experienced Project Manager with proven Design Engineering, Contract Management, Quality Assurance and Manufacturing expertise. Prior to Change Energy, Greg was employed by Daimler Buses North America where he managed all bus procurement contracts including the single largest procurement project in the history of the company, ultimately delivering 1350 diesel electric hybrid buses to New York City Transit. Previously, as Project Manager with Stuart Energy, he managed all project requirements to deliver the company’s full range of hydrogen generation and energy systems and served as single point of contact for customers around the world. Greg has a degree in Mechanical Engineering and is a professional engineer in the Province of Ontario.

Alyssa D’Cunha

Mechanical Engineer-In-Training

Alyssa D’Cunha graduated from the Faculty of Engineering & Applied Science at Queen’s University, specializing in Mechanical & Materials Engineering. Prior to Change Energy, she spent time working as a Project Manager for the Faculty of Engineering & Applied Science at Queen’s University. In this role she managed several first year design teams, training them in scope development and risk management and evaluating students’ oral and written work. As a liaison between the students and their advisors she helped shape individual and department outcomes. As an undergraduate student Alyssa’s projects included the redevelopment of an endovascular catheter for Baylis Medical Company and the optimization of a monorail vehicle component for Bombardier Transport using finite element analysis techniques. At Change Energy, Alyssa develops and continually improves internal technical standards, specifications, and documentation as they relate to natural gas and hydrogen vehicle refuelling, the bulk transport of natural gas, and energy supply and storage. She also assists with project work, ranging from business case assessment to detailed engineering design and project management. Alyssa brings with her technical skills an ability to develop effective communications for proposing, implementing, and marketing solutions for real world problems. Alyssa is currently working toward her designation as a licensed professional engineer in the Province of Ontario.

Share This