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Category: Sustainability , Utilities and Energy
The SUSTIE ZEB Building by Mitsubishi Electric Corporation
Kamakura, Japan
Challenges
- Achieving net-zero energy consumption without compromising occupant comfort
- Original building management system lacked capability to measure & manage carbon emissions
- Managing workplace and relaxation spaces efficiently while providing a seamless digital experience for employees and visitors
Results
- Furthered Mitsubishi Electric's efforts to promote worldwide sustainability and carbon neutral initiatives
- Automated the process of collecting and uploading building power consumption data to Microsoft Cloud for Sustainability (MCfS) for carbon emission visualization and management
- Aggregated and formatted sensor, equipment, and power consumption data in MCfS format, and represented the data using the Microsoft Sustainability Manager reporting tool
“At SUSTIE, we are researching and demonstrating future smart buildings to achieve both comfort and energy efficiency in buildings. For example, with the flexible dashboard features of GENESIS64, we were able to create dashboard screens that effectively represent performance metrics of SUSTIE. We also organize tours to showcase our work to our customers. It is important to clearly introduce our R&D results to visitors such as customers, real estate developers, design firms, and so on.”
— Jin Kawasaki, Head Researcher, Information Technology R&D Center
A Net Zero Energy Building Use Case
Mitsubishi Electric Corporation supports the United Nations Sustainable Development Goals and has defined specific corporate objectives as part of their Environmental Sustainability Vision. In line with these initiatives, Mitsubishi Electric Corporation created the SUSTIE facility to research, develop, and demonstrate Net Zero Energy Building (ZEB) technologies to promote energy savings, occupant wellness and comfort, and social acceptance of carbon neutrality. Pronounced /sah-stee-e/, “SUSTIE” combines the words “sustainability” and “energy” to denote the building’s net-zero-energy design and function. The four-story building is located in Mitsubishi Electric’s eastern Research & Development campus in Kamakura, Japan.
Key Points
- The SUSTIE facility is a testament to Mitsubishi Electric Corporation’s support for the UN’s Sustainable Development Goals and to their efforts to promote worldwide sustainability and carbon neutral initiatives.
- SUSTIE worked with Mitsubishi Electric Iconics Digital Solutions (previously ICONICS) to automate the process of collecting and uploading building power consumption data to Microsoft Cloud for Sustainability (MCfS) for carbon emission visualization and management.
- With GENESIS64, SUSTIE can automatically aggregate and format sensor and equipment data, output power consumption data in MCfS format, and represent the data using the MCfS Microsoft Sustainability Manager reporting tool.
A Net Zero Energy Building (ZEB) creates zero, or almost zero, net primary energy consumption annually through energy-saving technologies or a combination of energy-saving technologies and renewable energy sources. In Japan, this is achieved by minimizing energy consumption through efficient design and operation, while also utilizing on-site renewable energy sources, such as solar or wind power, to offset any energies produced. In essence, the building balances its energy demand and supply. A key to ZEB is to deliver energy savings while maintaining a comfortable and healthy indoor environment for occupants.
“At SUSTIE, we are researching and demonstrating future smart buildings to achieve both comfort and energy efficiency in buildings. For example, with the flexible dashboard features of GENESIS64, we were able to create dashboard screens that effectively represent performance metrics of SUSTIE. We also organize tours to showcase our work to our customers. It is important to clearly introduce our R&D results to visitors such as customers, real estate developers, design firms, and so on.”
— Jin Kawasaki, Head Researcher, Information Technology R&D Center
Sankey visualization chart showing energy and CO2 consumption by floors and equipment, highlighting key contributors for targeted optimization
Project Summary
Mitsubishi Electric needed automation software to optimize the building’s operations, manage energy usage, and monitor CO2 emissions. As a group company and long-time collaborator of Mitsubishi Electric, our automation software was the logical choice for SUSTIE. In 2021, SUSTIE started using GENESIS64 to manage the occupancy and environment of each room, manage power consumption, and monitor the operation status of air conditioning equipment.
In 2022, Mitsubishi Electric Iconics Digital Solutions participated in the Microsoft Cloud for Sustainability (MCfS) Insider Program and served as a launch partner for MCfS general availability. SUSTIE worked with us to automate the process of collecting and uploading building power consumption data to MCfS to calculate and visualize CO2 emissions. We released public MCfS support in May 2023 as part of the 10.97.2 CRF2 release of GENESIS64. Then in 2024, the SUSTIE team adopted Microsoft Sustainability Manager, a software-as-a-service (SaaS) offering within Microsoft Cloud for Sustainability, which serves as the foundation of its sustainability management tools.
In 2024, SUSTIE expanded their smart building use cases with the Intelligent Buildings Software Stack (IBSS), a cloud-based platform for managing day-to-day workplace operations and improving occupant experience in the facility. With IBSS, SUSTIE can effectively manage their facility’s workplace and relaxation spaces. Employees can book rooms and desks through a mobile app, control meeting room functions using Android tablets, and navigate the building with the help of large signage displays on the second, third, and fourth floors. This setup enables SUSTIE to optimize space usage, provide staff and visitors with a seamless digital experience, and share environmental data with users to foster stewardship and further sustainable practices.
A floorplan visualization of environmental conditions for optimized comfort: CO2, CO, TVOC, temperature, pollen, humidity, and formaldehyde
Sankey visualization chart showing energy and CO2 consumption by floors and equipment, highlighting key contributors for targeted optimization
Real-time interactive map from IBSS showing seat availability, busy areas, and amenities for efficient navigation and workspace use
Software Deployed
- GENESIS64™
- Hyper Historian™
- IBSS (Intelligent Buildings Software Stack)
Microsoft Products Deployed
- Microsoft Sustainability Manager
Microsoft Sustainability Manager: monthly emissions overview
Time-series energy consumption analysis: daily kWh totals split by energy source
Real-time interactive map from IBSS showing seat availability, busy areas, and amenities for efficient navigation and workspace use
Real-time energy balancing: energy consumption vs power generation
Realized Benefits
SUSTIE realized substantial benefits with Mitsubishi Electric Iconics Digital Solutions automation software. The initial integration between GENESIS64 and MCfS was completed within a short period of three weeks, resulting in minimal engineering work during the implementation phase. Previously, Mitsubishi Electric was unable to measure and manage CO2 emissions in the SUSTIE building. Now with GENESIS64, the SUSTIE team can automatically aggregate and format sensor, equipment, and output power consumption data in the Microsoft Sustainability Manager format, calculate Scope 2 CO2 emissions, and represent this data using the Microsoft Sustainability Manager reporting tool.
Real-time energy balancing: energy consumption vs power generation
Conclusion
Imagine a world where buildings are self-sufficient in energy generation and leave no carbon footprint behind. At the SUSTIE facility, that future is becoming a reality. Mitsubishi Electric’s revolutionary research center is showing the world what sustainable architecture and operations can achieve.
Moreover, the SUSTIE facility is a testament to Mitsubishi Electric Corporation’s support for the UN’s Sustainable Development Goals and to their efforts to promote worldwide sustainability and carbon neutral initiatives. Powered by Microsoft Azure, the GENESIS64 integration with the Microsoft Sustainability Manager provides carbon emission management and visualization. This capability extends GENESIS64's predictive analytics of energy consumption, building performance, and occupant comfort to provide secure control of building automation systems. The SUSTIE implementation currently calculates Scope 2 and Scope 3 – Category 5 CO2 emissions, and they are exploring additional Scope 1 and Scope 3 CO2 emission management.
“SUSTIE’s building management system lacked the capability to manage CO2 emissions. We therefore planned to develop a platform for CO2 emissions management to evaluate the cutting-edge technologies on the platform as soon as possible. With the support from ICONICS, we were able to achieve CO2 emission management within a short period of time.”
— Masaru Nakanishi, Researcher
“SUSTIE’s building management system lacked the capability to manage CO2 emissions. We therefore planned to develop a platform for CO2 emissions management to evaluate the cutting-edge technologies on the platform as soon as possible. With the support from ICONICS, we were able to achieve CO2 emission management within a short period of time.”
— Masaru Nakanishi, Researcher