Energy Optimization Model

“Interdisciplinary approach for energy management in office buildings: Energy Optimization Model” (TREND Control Systems)”

We would like to show that integrated energy management of an office buildings is neces-sary to use technical capabilities most effectively. The proposed Integrated Energy Man-agement Model for Facilities Managers provides insight into the assessment of parameters that affect energy use, but also maintenance costs, organizational performance and risk in facilities. This model helps to create an energy strategy that addresses financial obligations and affords scalability for the future. Model Predictive Control (MPC) is presented to opti-mize alternatively 3 main factors of building utility consumption/ emission. The model is es-timated on-the-fly, that feature enables adaptation as the model is fitted using past & re-cently data. Presentation discusses the importance of adopting an integrated interdiscipli-nary approach to Facility Management strategy, showing, that energy optimization must be seen as a part of a complex system, which is supported by technical means and IT tools. We would like to show selected models that have been developed to measure and improve the energy efficiency and apply them into integrated performance measurement model for FM.

Trend (UK) is a leader of networked building controls focused on energy savings (BeMS). Beginning from simple solutions as self-reseting setpoints through optimized start-stop algorithms up to model based energy optimizer Trend tries to keep the comfort conditions and human’s satisfaction on high levels decreasing energy use in a back-ground. The latest solution that is still in beta phase gives absolutely positive feedback and helps to reduce cost, energy or CO2 emission in new buildings and old ones. The more points of installations are monitored/controlled the more energy can be saved. The model collects data about ambient and installation parameters, checks energy de-mands and estimates the best adjustments for main “energy consumers” in a building, e.g. chillers, boilers, AHUs.
The positive action of the optimizer can be seen through a simple day-after-day switch-ing strategy that changes user’s adjustments to calculated ones and vice-versa. Despite technology development and wide plans to deploy smart metering in office buildings, there is still little knowledge of occupant en-ergy use in offices. The objectives of the presentation is to investigate the effect of individual feedback on energy use at the workplace, and to show the relationship be-tween occupant behavior, Facility Manage-ment strategy and building technology.

Of-fice energy use is influenced by variety of factors, some within the control of BeMS, while others are perhaps beyond the control. Our presentation is based partly on “Energy Cultures” framework presented by Stephen-son et al.’s (2010), where he suggests that energy consumption behavior results from interactions between cognitive norms, mate-rial culture and energy practices.” In the presentation we would like to show that Fa-cility Management strategy driven by techno-logical change would be more rational way to obtain minimal energy use in office build-ing than implementation of pure energy-saving technology. Solving this problem ac-tors must take interdisciplinary viewpoints (real estate, space management, finance, energy market, occupant behaviors, organi-zational behavior, building technology). We would like to show how modern technology helps to overcome organization’s unwilling-ness to consider changes to their energy be-haviours and helps Facility Managers to do it properly.
Energy management in office buildings is very important part of Facility Managers strategy. Presentation discusses the im-portance of adopting an integrated interdisci-plinary approach. The need for a wide range of factors is initially required including occu-pants behaviors and their comfort zones, or-ganizational primary processes, cost/benefit solutions etc. and all influence Facility Man-agement practice.

Maciej.Czajka, Trend Control Systems Ltd., UK


Master of Science in Robotics, PhD student of controls at the Poznan University of Technology (PL), Sr Technical Manager in TREND Control Systems Ltd. He has multidisciplinary experience in both process and building controls. Designer, pro grammer, commissioning engineer, project manager, trainer in a range of control systems. Author of articles on PID autotuning. He is interested in self-learning and auto-adaptive algorithms. Member of PERFORMER Special Interest Group.



Bartłomiej Dessoulav-Śliwiński, University of Warsaw, Poland


lecturer and rsearcher at Faculty of Economic Sciences, University of Warsaw, Po-land. He has experience in Facility Management and Real Estate both as researcher and consultant. Trainee at Fraunhofer (Germany) and IBM TJ Watson Research Cen-ter (USA). Certified Business Process Modeler and a member of the Facility Manage-ment Committee and Chair of Real Estate Market Committee at Polish Committee for Standardization. Author of books and articles on process management and Facility