Meet the Team


Ilene Mason, MBA, CEM

Founder and CEO

Ilene started Rethinking Power Management with a vision of reducing the impacts of climate change by helping commercial clients turn an interest in energy conservation and sustainability into realities. Previously, Ilene worked with the Consortium for Energy Efficiency organizing utilities, government entities, manufacturers and other stakeholders in support of efficiency-related market-transformation initiatives across the U.S. and Canada. Ilene began her career with ten years in manufacturing and design engineering working for Vishay, a leading manufacturer of discrete semiconductors and passive components. Other business experience includes writing for the Sierra Club and managing organizations/programs including software training facilities, municipal recycling programs, and an orthopedic surgical practice. She holds a B.S. in Metallurgical Engineering from Lehigh University and an MBA from F.W. Olin School of Business at Babson College. Ilene is an AEE Certified Energy Manager (CEM) and Demand-side Manager (CDSM).


David Mitchell, LEED AP

Senior Energy Engineer

Dave has extensive and intimate knowledge of buildings and building systems having started and managed a MEP (Mechanical, Electrical, Plumbing) company for over 30 years. Dave also started a sheet metal fabrication company, a dehumidification company, and even an ice cream shop in St. Kitts before deciding to focus his attention on energy efficiency. Dave’s experience in institutional, commercial, industrial and residential energy efficiency coupled with his knowledge in LEED implementation and as a Certified Building Commissioning Professional afford him unique insight when evaluating overall operating conditions of a variety of buildings.  Dave understands the advantages and pitfalls of advanced technologies and remains current in this ever-changing world. With his extensive experience and hands-on approach, Dave is able to develop solutions that are practical and effective.


Stephen Murphy

Senior Energy Engineer

Steve has broad experience is various industries. His expertise in electrical power factor and power quality, lighting and control systems has benefited companies in both private and public sectors. He brings a unique perspective to RPM clients having been as an in-house engineer and a consulting engineer. The common thread throughout his career has been a passion for sustainability. Prior to joining RPM, Steve managed multi-million dollar projects at Commercial Construction Consulting, served as District Facilities Manager for the Old Rochester Regional School District of Mattapoisett, MA, was Director of Engineering at Johnson & Wales University, worked on the Central Artery Tunnel project as a Senior Electrical Engineer at Bechtel, and started his career as an Engineer at National Grid. Steve holds a BS in Marine Engineering from the Massachusetts Maritime Academy and an MS in Management from Lesley College.


Fritzi Pieper

Sustainability Manager

Fritzi joined RPM with a desire to help clients develop and integrate sustainability and energy efficiency goals into their everyday operations. Building on strong interpersonal, planning, and organizational skills, she focuses on supporting client and other business relationships as well as overseeing strategic initiatives in areas such as water conservation and training. Prior to joining RPM, Fritzi served as a Strategic Engagements Manager at DesignLights Consortium where she developed expertise in lighting, business planning, organization-wide engagement and brand strategies, and relationship management. Fritzi holds a BA in Anthropology and Environmental Studies and a MS in Engineering Management from Tufts University. Fritzi also accomplished a Lean Six Sigma Black Belt.

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Nate Bolton

Energy Engineer

Nate has worked in multiple capacities spanning engineering design to project management. His expertise in energy efficiency and utility programs helps RPM clients navigate the successful completion of projects. Nates focus is on building controls and HVAC. Prior to Joining RPM, Nate was a senior consultant at Cognizant handling IT implementation projects for energy & utility clients. Nate holds a B.S. in Mechanical Engineering from the University of Massachusetts Dartmouth and an MBA from the University of North Carolina at Chapel Hill. Nate is a registered Professional Engineer – HVAC in Massachusetts.


William Lippincott

Junior Engineer and Data Analyst

William has a deep-rooted passion for environmental sustainability, making it a part of his professional and personal endeavors. He brings strong research and data analysis skills to RPM projects, leads internal data collection initiatives, and supports engineering project development. Before joining RPM, William managed community outreach teams at Next Step Living and the Rhode Island Department of Environmental Management's organic farm certification and land use restriction programs. During his internship at the U.S. Department of Energy, he participated in the creation of America’s Home Energy Education Challenge. William has a BA in Environmental Studies from American University, and a MS in Energy Systems at Northeastern University.


Freda King

Organizational Development

Throughout her career, Freda has led and/or supported multi-stakeholder teams. She has a strong ability to understand the needs of each constituent. Whether deciphering organizational complexities or dealing with numerous data and information, her partnership approach ensures the best possible outcome. Freda focuses on working closely with Ilene in the designing organizational structure, employee development, and HR systems. Freda holds a BA in Behavioral Sciences from the University of Maine, and a MBA with an emphasis in entrepreneurship from Simmons School of Management.


Anita Hagspiel

Special Projects

Prior to joining RPM, Anita was a long-term employee of National Grid responsible for developing and managing C&I energy efficiency programs as well as facilitating joint working groups at the local, state and national levels. Among her many roles, Anita provided holistic building solutions to National Grid’s commercial and industrial customers, managed collaborative vendor and buying programs and initiated other innovative concepts. She also gained broad experience working with lighting, mechanical design and installation vendors. She holds a BA from Framingham State University and a certificate from Worcester Polytechnic Institute’s School of Industrial Management.