Our Team

Massachusetts Office

Dennis Mahoney


With over 30 years of experience in power and energy industries, Dennis provides a wide range of knowledge; covering a vast array of applications.  His extensive field experience is invaluable to Power Resources and our customers; enhancing our engineering, furnish and install (EF&I) capabilities.  Dennis’ long-term relationship with vendors, keen eye and attention to detail, helps ensure that the solutions we offer, are the best solution; for your requirements.

Mobile: (401) 387-4120
Fax: (401) 539-8646


Email Dennis


Connecticut Office

Jonathan Rook

Specializing in DC Battery Systems


Jon and his former company, Data Power Decisions, Inc. were providers of emergency power systems since 1984.  His work in the industry has garnered him a solid reputation as an expert in the field. He has worked as a technician on UPS Systems, Chargers and Switchgear. He specializes in DC Battery Systems with applications in Telecommunications, Power Plants, and more.  Jon is also available for training and consulting for Utilities, Data Centers and Telecom central offices as well as offering on-site seminars.    


Mobile: (203) 668-6501