Time to Commission
Time is money. Integrated systems not only take less time to install but also less
time to configure. The use of shared standardized databases compliant with
SQL and ODBC and tools such as XML and SOAP, allow for easier integration
among building technology systems. They also facilitate the integration between
building technology systems and the organization’s business systems, such as pur-
chasing, human resources, and so on. Less time to commission means less cost.
Power
POE (power-over-Ethernet) is the most undervalued technology for building
construction and operation. Even though systems can be integrated without
the use of POE the capital and operational savings from the use of POE is
so compelling that it needs to be an integral part of the installation and oper-
ation of smart building systems.
For example, a card reader that is part of an access control system typically
requires both a communication cable and local power. How much is saved if
the communication cable can also provide the power? By eliminating the need
for local power, upwards of $250 per outlet can be saved during construction
and close to $750 after construction depending on the location.
The CAPEX savings related to a smart building approach is very dependent
on building type, size, local construction market and so on. The greatest cost
difference between integrated and separate systems is the long-term opera-
tional cost of the systems and the facility. Operational cost savings are related
to the following factors.
n The standardized infrastructure allows for easier change implementations
during the operational life of the facility for building automation system
controls and devices, telephone systems, data networking, lighting, and
other telecommunications and building systems.
n Increased building efficiency results in energy savings.
n Coordination and communication of systems in response to an emergency
evacuation are improved. For example, integrated systems allow for the
fire alarm, video surveillance, access control, HVAC, lighting control,
and elevator systems to communicate during an emergency evacuation.
n Standardized management tools continue to reduce training costs.
n System information management is improved.
n Overall staff productivity is enhanced.
164 Smart Building Systems for Architects, Owners, and Builders