30 Nov 2023
by Will Edge

Fujitsu’s Intelligent Building Energy Management (IBEM) offering uses advanced and interconnected technologies (Guest blog from Fujitsu)

Guest blog by Will Edge, Global Product Leader - Sustainable Energy & Environment at Fujitsu. Part of techUK's Climate Action at COP28 Campaign Week 2023.
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Fujitsu’s Intelligent Building Energy Management (IBEM) offering uses advanced and interconnected technologies to control, monitor, and optimize the energy consumption of a building. It is a part of a wider smart building solution set, which would include smart homes and smart cities.

Solution Overview

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Intelligent building energy management is a Digital Twin solution that connects the various Building Management Systems (BMS), required to run any building, to Internet of Things (IoT) devices and sensors to collect real-time data about energy usage across various points in the building.  The Digital Twin connects directly into BacNet for the BMSs and an IoT Gateway that will connect the sensors.  IBEM will automatically adjust the HVAC (Heating, Ventilation, and Air Conditioning) settings based on occupancy data, outside weather conditions, and time of day.  It can also detect anomalies and inefficient usage patterns, then provide recommendations or automatically take actions to rectify these issues. 


  • Energy Efficiency: By optimizing energy usage, buildings can significantly reduce their energy consumption, thereby lowering energy costs. We have seen energy savings of 12-15% across the building estate.
  • Sustainability: By using less energy, buildings can reduce their carbon footprint, contributing to environmental sustainability.
  • Comfort: By intelligently controlling heating, cooling, and lighting, these systems can maintain a comfortable environment for occupants.
  • Maintenance: By continuously monitoring energy usage and detecting anomalies, these systems can help identify maintenance needs before they turn into costly repairs.

Extensible Modular Solution

Apart from the energy savings and CO2 reduction benefits the core implementation will also give organizations the benefit of linking previously unconnected datasets from Building Management Systems together.  This provides the ability for Facilities Managers to now have a single view on the important elements of estate management which we facilitate by providing a customized dashboard.

The Digital Twin makes this a modular solution, effectively a platform on which to build Smart Building functionality like; access management, navigation and way-finding, predictive maintenance and smart building operations.  Our planned commercial model puts a percentage of energy savings into a pot for the development of these backlog items.

Market & Commercial View

Considering the landscape of Smart Building technology, where many products concentrate on data consolidation from Building Management Systems (BMSs) and energy data harvesting from IoT devices, we carve a distinctive niche for ourselves. Our solution guarantees a 10 – 15% reduction in energy expenditure, simultaneously lowering associated CO2 emissions, placing us at the forefront of building energy innovation.

This year, we're launching six high-impact Proof of Value implementations across regions and sectors. This not only refines our solution but also offers customers a unique chance to test and shape their smart building energy-saving solutions.


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 Will Edge

Will Edge

Global Product Leader - Sustainable Energy & Environment , Fujitsu

William Edge - Dorking, England, United Kingdom | Professional Profile | LinkedIn