Building Automation Control Systems Can Take Efficiency to the Next Level

Dec 10
08:33

2011

Cindy Woudenberg

Cindy Woudenberg

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Many building owners and occupants looking to cut operating expenses and improve energy efficiency naturally look to replacing or upgrading systems such as HVAC and lighting. If done right, with planning and knowledge of how systems interact, this is usually an effective step towards reducing expenses and energy usage. However, it is important to plan for managing the actual usage of the systems once they are in place.

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Also known as Direct Digital Control (DDC) and Building Management System (BMS),Building Automation Control Systems Can Take Efficiency to the Next Level Articles control systems range from simple programmable thermostats to complex, sophisticated systems that control multiple facilities.  Control systems typically contain three primary components:

  1. The automated system that provides controls for HVAC, lighting and other systems within the facility,
  2. Energy information systems that work with the controls to provide energy data to operators and energy managers,
  3. The participants in the automated system that result in system efficiency.

 

These systems perform functions of programmed commands for HVAC, ventilation, temperature and may include lighting commands.  These systems typically record data, including utility demand and energy use, building conditions, climatic data and status of controlled equipment.  The data furnished by the control system is vital to managing energy usage – only if it is measured can it be managed.

 

Your new or existing systems need adjustment based on conditions and use, which is difficult for staff to manage.  Sequencing multiple processes is best completed by automatic controls designed specifically for that purpose.  Leaving control of energy systems to the occupants can have a major – and historically negative - impact on energy usage.  Even if an old HVAC system is replaced with a new, energy efficienct unit, the effect of individuals raising and lowering the temperature at will can be extremely detrimental.  Human interaction with manual controls often taxes the system and decreases efficiency and consistency in the equipment that is being controlled.  The efficiency of facilities is improved radically when control routines are established and implemented within an automated control system.

 

There are countless configurations and “smart” technologies that can be put to work in building automation systems.  Occupancy modes such as Unoccupied, Warm Up and Night Setback can be used to set schedules for lighting and temperature control. All equipment should be brought to set points before being occupied, through use of the proper automated sequence.  The system should also take into consideration outside climate conditions, equipment capabilities and indoor temperatures to ensure the systems start at the appropriate times and are ready for occupancy.

 

Occupancy sensors, photo sensors and timers can be used to automatically turn off lights and control climate. Building automation can have sub-systems such as room automation as well, seen often in large rooms that might not be used consistently and have a number of devices that require controls.  Presentation rooms, lecture halls or corporate boardrooms can be controlled based on use and occupancy, as well as streamlining controls of lighting, computers and video equipment under one control system.

 

After making the decision to implement an automated control system, it’s important not to just assume that the system is providing energy efficiencies.  A thorough verification and measurement approach is the only way to provide evidence that systems are properly automated and actually resulting in savings and greater energy efficiency. 

 

 

 

For more information please contact crginfo@capitalreviewgroup.com directly at 602.741.7776

 

CAPITAL REVIEW GROUP does not advise on any personal income tax requirements or issues. Use of any information from this document or web site referred to is for general information only and does not represent personal tax advice either express or implied. You are encouraged to seek professional tax advice for personal income tax questions and assistance.

Marky Moore, Founder of Capital Review Group in Phoenix is a Certified Sustainable Building Advisor and an Accredited Professional for the U.S. Green Building Council's Leadership in Energy and Environmental Design (LEED AP) and has a thorough understanding of green building practices and principles, as well as the LEED rating system.  She works with engineers and architects on one hand, and CPAs and tax advisors on the other, to achieve the maximum Federal Tax deductions for a building's energy efficiency and depreciation. She started CRG in 2004 to provide critical tax and specialty services to professional advisors, clients and institutional partners. The company offers services in several major areas:, the 2005 Energy Policy Act/Section 179D, business tax credits and specialty construction/engineering consulting, and Cost Segregation. Ms. Moore is a featured speaker in the industry and has authored articles for major industry publications.

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