Electrical Engineering

BREEN’s Electrical Services Include:

• Lighting
• Lighting Controls
• Power and Signal Systems
• High, Medium and Low Voltage Distribution Systems
• Special Power Systems
• Grounding
• Computer Data Distribution Systems
• Standby and Emergency Power Systems
• Telecommunications
• Fire and Security Systems
• State of California, Title 24 Calculations and Analysis
• Engineering Reviews
• Due Diligence Reports
• Photovoltaic
• CNG fueling system
• Infrastructure for solar panels per Cal Green.
• Pathways and infrastructure for distributed antenna system (DAS)​​

Des Mahony, P.E. LEED AP
Head of Electrical Department

Des joined BREEN Engineering in 2008 and has over 30 years of experience in consulting engineering for a variety of complex project types including residential, healthcare, commercial office, retail, hospitality, restaurant, industrial, federal government facilities, education and high-rise structures. Most recent experience includes numerous residential projects in and around southern California, especially LEED and Green Point Rated apartments for low income, affordable and market rate living. Other residential projects include student accommodation, high-end condominiums, accessory dwelling units and single family homes. 

Des leads the MEP department at BREEN Engineering and is the licensed electrical engineer for all of the projects that pass through our doors. He has a hands-on approach, leading projects from the kick-off meeting, through to final handover. He mentors, trains and encourages staff at all levels and is responsible for the timely execution of the MEP projects in the office.

Des also has extensive international experience, including projects in the UK, New Zealand, Australia, Abu Dhabi and Dubai.​

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