Buildings

The case of the vanishing seeds: How curiosity-driven research is future-proofing “Smart Windows”

Daniel Morton — Tue, 27 Jan 2026 17:02:14 +0000

The case of the vanishing seeds: How curiosity-driven research is future-proofing “Smart Windows” Daniel Morton Tue, 01/27/2026 - 10:02

Daniel Morton

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Have you ever walked into a room on a glorious Colorado summer day and felt the heat radiating through the glass?

We usually solve this by cranking up the air conditioning or closing the blinds, losing our mountain view in the process. But what if the window itself could think? A team led by Mike McGehee, a Fellow at RASEI, describes research that improves the robustness of such a device.

For years researchers have been working on “smart windows”, devices that could “sense” the conditions outside and “react” to them. This investigation centers around a promising technology called Reversible Metal Electrodeposition (RME). The technical details of this process are complex, but you can understand the concept by thinking of it as a reversible coat of paint. At the flip of a switch, a thin layer of metal, in this case silver, spreads across the glass to form a layer that tints it, blocking out the heat and the glare. Flip the switch again and the silver dissolves back into a clear liquid, making the window transparent.

Buildings are responsible for consuming around 40% of all generated energy globally, much of which is expended in regulating the temperature, heating and cooling the building interior. Installing smart windows that can react to the environmental conditions could provide a very effective mechanism to reduce energy use and slash energy bills by automatically managing how much heat enters a room. It has been estimated that just by controlling the amount of sunlight that is let into a building through a window, we could cut energy bills by up to as much as 20%.

However, there have been a number of challenges to overcome in order to take this initial discovery from the lab to a product that can be deployed for use in buildings. One challenge is that early versions of these windows started out fast but grew “lazy” over time. After a few thousand uses the tinting / de-tinting process slowed, taking almost four times longer than it did on day one.

This is where the researchers undertook some detailed investigations to identify what was going on, and what could be done to fix it. A collaboration between the McGehee group (at the ��ý��) and the Barile Group (at the University of Nevada) set out to find out exactly what was happening. The team decided to look closer, using a combination of high-powered x-rays and electrochemical tests. The windows were using tiny “seeds” of platinum to help the silver grow on the glass. Platinum is recognized for being tough and non-reactive, and so should be perfect as a nucleation point for the silver. Using these advanced techniques the team explored exactly what was happening to the platinum seeds during the clearing phase, when the silver “paint” is stripped away.

To their surprise, the platinum was not as tough as they initially thought. In the special liquid environment needed for the windows, the platinum seeds were actually dissolving and washing away when the window was switched to clear. As the number of seeds dropped, the silver had fewer locations to grow from, which was the cause behind the window tinting slowing.

This led the team to ask the question “What can we do to make the seeds more resilient?”, which led them to use gold in place of platinum. While gold and platinum are both precious metals, in water, which is the solvent used inside the window panels, gold is more stable and less susceptible to decomposition and dissolving. When they swapped the platinum seeds for gold ones, the results were immediate. Even after 7,500 cycles, the equivalent of years of daily use, the windows transitioned just as fast as the first time they were used.

These gold-based windows provide an exciting range of opportunities. Not only because of their improved stability over many thousands of cycles, but also because they can express multiple colors by varying the voltage, a feature of the size of the gold particles. This presents opportunities for their use in displays and communications devices. This technology offers a better, smarter window that could passively save significant amounts of energy if deployed in commercial and residential buildings. This work shows how the impact of making fundamental chemical changes can unlock the potential of new technologies.

January 2026

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Robust fast-switching black electrochromic windows based on solution-processed n-doped transparent organic conductor

Daniel Morton — Sun, 14 Dec 2025 18:55:44 +0000

Robust fast-switching black electrochromic windows based on solution-processed n-doped transparent organic conductor Daniel Morton Sun, 12/14/2025 - 11:55

NATURE COMMUNICATIONS, 2025

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Mesoporous optically clear heat insulators for sustainable building envelopes

Daniel Morton — Fri, 12 Dec 2025 00:15:09 +0000

Mesoporous optically clear heat insulators for sustainable building envelopes Daniel Morton Thu, 12/11/2025 - 17:15

SCIENCE, 2025, 390, 6778, 1171-1176

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New window insulation blocks heat, but not your view

Daniel Morton — Thu, 11 Dec 2025 16:24:44 +0000

New window insulation blocks heat, but not your view Daniel Morton Thu, 12/11/2025 - 09:24

Physicists at CU ��ý��, led by RASEI Fellow Ivan Smalyukh, have designed a new material for insulating windows that could improve the energy efficiency of buildings worldwide—and it works a bit like a high-tech version of Bubble Wrap.

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The team’s material, called Mesoporous Optically Clear Heat Insulator, or MOCHI, comes in large slabs or thin sheets that can be applied to the inside of any window. So far, the team only makes the material in the lab, and it’s not available for consumers. But the researchers say MOCHI is long-lasting and is almost completely transparent.

CU ��ý�� Today have put together a feature article that has been picked up by a number of other news outlets. Check out the feature and the follow ups with the links to the right.

December 2025

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Enhancing the Cycle Life of Reversible Silver Electrodeposition Optical Devices with Durable Gold Seed Particles

Daniel Morton — Thu, 04 Dec 2025 18:40:58 +0000

Enhancing the Cycle Life of Reversible Silver Electrodeposition Optical Devices with Durable Gold Seed Particles Daniel Morton Thu, 12/04/2025 - 11:40

ACS APPLIED MATERIALS & INTERFACES, 2025, 17, 50, 68212-68217

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Distribution grids may be a barrier to residential electrification

Daniel Morton — Fri, 21 Nov 2025 18:57:51 +0000

Distribution grids may be a barrier to residential electrification Daniel Morton Fri, 11/21/2025 - 11:57

CELL REPORTS SUSTAINABILITY, 2025, 2, 11, 100518

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Profile: Gregor Henze

Daniel Morton — Tue, 04 Nov 2025 00:29:46 +0000

Profile: Gregor Henze Daniel Morton Mon, 11/03/2025 - 17:29

Daniel Morton

RASEI Fellow Gregor Henze, Charles V. Schelke endowed professor in the Department of Civil, Environmental, and Architectural Engineering at the University of Colorado, has recently been elected as a 2025 Fellow of the International Building Performance Simulation Association (IBPSA).

Gregor also recently completed his role as an author and co-editor of a report with the International Energy Agency (IEA) on Methodologies and Evaluations of Energy Flexibility for Clusters of Buildings. As a founding Fellow of the Renewable and Sustainable Energy Institute (RASEI), Gregor has played a significant role in the institute’s growth and development since its inception. His work has established an impressive track record in the development of technologies that enhance the energy efficiency of the built environment.

We spoke with Gregor to learn more about his research and his journey into this field.

Where did you grow up?

I was born and raised as the fourth of five children in West Berlin, an island within East Germany surrounded by the Berlin Wall until 1989. As my mother was walking to the hospital on my birthday, she walked down Gregor Mendel Street, named after the Austrian monk and biologist who laid the foundation for the laws of genetic inheritance, and the name stuck with her, being an agricultural researcher married to my microbiologist and physician father.

I attended the Technical University of Berlin to study energy and process engineering, the same institution as Albert Einstein, though it was referred to as Royal Technical Academy of Berlin then. My later years at university were a time of great historical disruption, while during my undergraduate studies I had opportunities to pursue industrial internships at Siemens Energy (where I helped assemble an 80 MW gas turbine) and Ems Chemie in Switzerland (developing heat recovery solutions for thermally intensive polymer production). In my final year I received a Fulbright Scholarship, following in the footsteps of my brother, allowing me to study in the United States. Only ten days after I found out about my Fulbright selection, the Berlin Wall fell, and history forever changed.

What was your experience as a Fulbright Scholar?

The Fulbright Commission’s selection has had a significant impact on my life and one that I am forever grateful for. I chose Oregon State University where I completed my MS in mechanical and nuclear engineering. My experience gathered in internships during my undergraduate nudged me more toward the mechanical and energy engineering side rather than chemical engineering. My time in Oregon was personally remarkable as I met my wife Martha and explored some of the natural splendor of the American West; it was a pivotal life experience. Towards the end of my time in Oregon we took a road trip east, and that was the first time I set foot on the campus of CU ��ý��. Walking around the campus in ��ý�� on a glorious August day, I decided that this was where I had to do my PhD. I applied and was accepted to the mechanical engineering department the following year, but when I arrived none of the opportunities spoke to me, instead I was attracted to research going on in the Civil, Environmental and Architectural Engineering, focused on improving the demand side of the energy equation. With the help of my co-advisor, mentor, professor, and now friend Prof. em. Michael Brandemuehl I switched departments, and I got hooked on this subject.

How did you start your research career?

After completing my PhD, I went into industry, working for Johnson Controls as an energy engineering manager, where I oversaw the energy analysis of large building portfolios, developing so-called energy savings performance contracts for buildings throughout central Europe. I worked with a small, motivated team solving interesting and challenging real-world problems, but after four years I was tempted back into academia for a deeper look at energy problems. I was approached by the University of Nebraska-Lincoln with an exciting opportunity, to be part of a team to setup a new school, a new undergraduate degree, and a new graduate program. That is what led me to become a founding member of the Durham School of Architectural Engineering and Construction (DSAEC). Standing up this school and these programs was both a challenging and fulfilling time for me, and I learnt much, not just about being a professor, but also about building academic programs and community.

After nine years at the DSAEC, in 2008, I was approached by CU ��ý��, and one of the big draws for coming - in fact returning after 13 years away - to Colorado was the emerging relationship between NREL and CU and the opportunity to become involved in the creation of RASEI. I was drawn to the chance of building something new and to work on a wide range of energy challenges with colleagues from NREL and CU.

Can you sum up your current research in one sentence?

Improving building-to-grid integration through advanced control approaches and decarbonizing urban energy systems through electrification and community heat management.

Explain a little more about what that means

I have had the great fortune to be involved in a number of rich research areas over the years, but recently I have been drawn to explore different ways in which we can connect portfolios of buildings together so that they can work synergistically to drive down energy costs.

Architectural engineers have historically explored strategies for improving energy efficiency at the level of individual buildings, looking at ways to optimize energy use and drive down waste, developing best practices like the LEED certification, net zero energy building design, advanced controls, passive cooling, and natural ventilation, that led to individually more efficient buildings. This work grew and evolved but recently led us to the conclusion that we were missing an opportunity, namely, how buildings could collaborate.

Buildings consume ~ 40% of the total energy and ~75% of the electricity used nationwide. That is split about 45:55 between commercial and residential buildings. There is a vast untapped potential of nationwide savings if we can impact commercial building energy use at scale. If we eliminate the use of gas to heat buildings and move to electrically-driven heat pumps, we would make huge strides to wean ourselves from fossil fuels, increase energy efficiency, and operate buildings more affordably. In existing urban contexts, this includes the question of how to best select and then interconnect buildings together.

A timely tangent is datacenters. Their deployment is and will continue to rise because of AI, so how can we better use them? The large number of servers in a datacenter are essentially electric heaters. Yes, they are crunching data to power our AI chats, but they are also heating the environment and a great deal of downstream work is required for cooling. What if we tap into this resource by connecting a datacenter to other buildings that need heat, so we make use of what would otherwise be considered waste?

Our work shows that interconnected buildings can be more resilient and more reliable, i.e., being interconnected provides a host of benefits. Urban systems, in particular commercial buildings using heat pumps can be very efficient. When you have a group of nearby buildings, they commonly have diverse thermal demands, one building needs to be heated, and one needs to be cooled, and these can work together. We can assemble an ensemble of buildings that maximally benefit from each other. Then, we think about the topology of the building network, how best to connect them together, how to minimize the pipes and infrastructure that connects them together. Once you have collected a network of buildings, each node in the network is more resilient, if one goes down there is redundancy built into the shared system.

A research area that has recently emerged is called thermal energy networks, or TENs, which involve a shared network of water-filled pipes that transfer heat in and out of buildings. These neighborhood-scale systems allow buildings to exchange heat with several energy sources, such as lakes and rivers, energy-intensive buildings, data centers, wastewater systems, or the stable temperature of the earth. Further, TENs use shallow geothermal boreholes to harness the relatively constant thermal energy within the earth, then transfer that to all buildings on the network. These boreholes can capture and store excess heat underground for use days or months later, using the earth as a thermal battery and flattening peak electricity demand.

Instead of high-pressure steam and chilled water being separately circulated around a campus, one can instead circulate near-ambient water in a TEN. In each building, in place of all the heating and cooling hardware required, you only need a small energy transfer station and a few heat pumps. It is far more energy efficient and takes up less space. We can model how the pieces all fit together, what the different needs are for heating and cooling across the network, and how the resources can best be shared.

We have an interesting project currently that investigates how this can be applied, exploring how one could best place a datacenter in the urban fabric of Chicago. We are building a model of how the waste heat from the datacenter could be used to heat commercial and residential buildings in the community. This is an opportune way of getting the most mileage out of the electricity we use, instead of just exhausting waste heat into the environment, we can harness it for use in other buildings.

Another area that my team is looking at is energy flexibility. In a power grid, supply must always meet demand. Conventional fossil-based power systems are considered demand-following, where powerplants can be turned up when the demand increases. We are in the process of transforming our electric grid system to behave in a source-following fashion. Wind and solar are intermittent and uncertain, so how do you design a grid so that energy can be used in different ways, i.e., to be responsive to such a source-following model. How we approach these questions has been some of the work that has for the last four years connected me to the International Energy Agency (IEA).

Say a little more about your approach to international collaboration.

I always strive to find diversity in my work to keep engaged and passionate, and I have found this in several different forms, from startup companies to international sabbaticals. I have had the opportunity to work with different teams in countries across the world, and the current work I am doing with the IEA is a highlight. For the last four years, I have been involved in two international working groups, specifically, Annex 82 and 96. Annex 82, titled Energy Flexible Buildings Towards Resilient Low Carbon Energy System, for which we recently published a major report, has been a great deal of fun! With the help of common exercises I designed, I was able to engage with teams from all over the world, and together we were able to analyze a wide range of building portfolios, in different locations and environments, and explore the benefits and limitations of energy flexibility in these different scenarios. Energy flexibility, previously explored through model predictive and reinforcement learning control approaches, is a cheaper alternative to large-scale deployment of electrical energy storage to keep the lights on in a renewables-dominated electric grid. This was a significant undertaking, but one that was made possible by multinational collaboration, and one that proved to be personally rewarding. IEA Annex 96, titled Grid Integrated Control of Buildings, is the follow-on working group I am involved in. The effort aims at enabling buildings to participate as flexible demand assets in energy systems and to enable trustworthy, automated, cost-effective trading of flexibility resources from buildings, at scale.

Since 2005 I have made a point of seeking opportunities for international collaboration in how I have approached sabbaticals. I have spent extended time periods working at research organizations and companies such as the Fraunhofer Institute for Solar Energy Systems (in Freiburg, Germany), Siemens Building Technologies (in Zug, Switzerland), and Eurac Research (in Italy), and I collaborated with the department of electrical engineering at the Universidad de Sevilla in Spain, and another fantastic research stay at the CSIRO Energy Center in Australia. The position in CSIRO brought me back to the Fulbright Commission 30 years after my exchange from Berlin to Oregon, since I was awarded the Fulbright Distinguished Chair for Science and Technology award for that year. All these rewarding opportunities gave me a chance to connect with researchers from across the world, learn about new approaches, and share new and exciting ideas, which is one of the greatest gifts of being a professor. Lastly, I have hosted from and sent to Europe (Germany, Ireland, Italy, and Switzerland) many research assistants over the last quarter century, emulating the inspiration I gained from Senator James W. Fulbright.

You mentioned your entrepreneurship, could you say a little more about that?

This has added a new dimension to my life, and I am involved in three startup efforts. In 2008, I co-founded a company called QCoefficient together with a power systems engineer and industry veteran, which was at the forefront of so-called building-to-grid integration, maybe too far ahead of its time. At that time the power grid didn’t communicate with buildings in any substantive way, and buildings didn’t communicate well with the grid, that was the gap we planned to fill with continuous integration of HVAC system operation into the electric grid system to participate in a host of energy services that normally supply-side assets are responsible for. Our focus was, and still is, on a few large commercial buildings in grid-constrained urban cores continuously responding to real-time prices and demand response incentives, generating price relief and thus a community benefit. QCoefficient had crafted a unique joint collaborative research agreement with CU Venture Partners using a shared foundational patent, allowing students over the last 17 years to contribute to technology development while pursuing their graduate degrees.

A second startup I have been involved in as co-founder and scientific advisor since 2023 translates the technology and CU-held IP of a recently completed ARPA-E grant that I led to new application domains. Whisper Energy develops energy efficiency strategies enabled by wireless sensor networks and AI-based sensor fusion algorithms utilizing an ensemble of sensor nodes that estimate occupancy count, operational equipment efficiency in industrial facilities, and indoor environmental quality. This effort, funded by a CU Lab Venture Challenge grant, brings me together with a long-time collaborator from Rutgers University in NJ and is led by an energetic CEO based in Southern California. We are currently developing new hardware prototypes and demonstrating them at upcoming investor meetings to facilitate a first venture capital raise.

The third and most recent entrepreneurial venture started in 2025 and focuses on operational faults in buildings. Think about modern cars, we diagnose what is wrong with a car using standardized diagnostic protocols, going into the garage where they plug a computer in the car to diagnose the problem. What if we could do that with a building? Instead of trying to look at all the hardware for the problem, what if a suite of algorithms could give us an easy health check? This area is called automated fault detection and diagnosis, or AFDD.

Although it looks like an obvious opportunity, this has proved to be a hard nut to crack for several decades. One can use physically motivated fault rules to find faults in a building, but every commercial building is a unique, you may say, a snowflake. It has proven challenging and time intensive to translate a set of generalized fault logic rules to a specific building and create a bespoke rule set for it. A lot of AFDD fault rules have been found to be trigger happy, causing false positives, and frequently overwhelming building operators with a deluge of faults, not all of which are real. This causes skepticism for the technology. One still needs to have a person in the building to confirm the fault theory and address it. However, there is an inspiring upside potential for those who do solve this challenge, as there can be between 15-30% saving in operational energy and cost that could be achieved. Insidiously, often you don’t detect if something is wrong as the many interconnected building systems frequently compensate each other’s shortcomings, an effect we call the graceful degradation of buildings. So, it could seem like a building is fine, with no problems, but in fact they are hidden and causing the building to use far more energy than it would otherwise be if operating as designed.

Combining principles of AFDD with the power of generative AI, both large language models and emerging machine learning approaches is what we are working on with a new company called Clima Technologies, where I am serving as chief scientist, that aims to uncover operational faults and ensure energy efficiency. Taken together, I have enjoyed working with research teams in the entrepreneurial space, translating research into meaningful improvements for the built environment.

What advice would you give to someone interested in working in this area?

There are attractive opportunities for those considering going into building energy systems engineering, fault detection, and advanced controls. I foresee a large workforce gap coming, but one that could come with interesting opportunities. There are knowledgeable people working on building energy efficiency and in buildings controls, but not enough young people coming through to address the emerging workforce needs. I believe it will be an impactful and relevant application space for AI. AI alone could not work by itself, since diagnosis of an issue requires a field person to determine and verify an issue, but a combination of building operators enabled by a “building AI” could be an effective approach. Gathering and codifying the knowledge and experience from experienced operators who will soon leave the workforce to train and power such AI agents could prove a valuable resource for the next generation of building optimization.

You sound busy! What do you like to do to relax?

In addition to hikes in the Colorado mountains and classical music concerts in Macky Auditorium or Grusin Hall, the best thing is spending time with my family, Martha, my daughters Sophia and Josephine, and our dog Ludwig. We enjoy traveling, go on extended bicycle tours and sail together. We have had wonderful opportunities to explore across land on bikes and coastlines by boat, both around the United States and Europe. As a family, we have had some wonderful adventures together and I feel blessed for the richness of experience, both professional and personal, I have been given.

November 2025

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RASEI Fellow Gregor Henze featured in CBS News Article on Energy Efficient AC use

Daniel Morton — Tue, 26 Aug 2025 17:35:56 +0000

RASEI Fellow Gregor Henze featured in CBS News Article on Energy Efficient AC use Daniel Morton Tue, 08/26/2025 - 11:35

August 2025

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New report evaluates how we can use energy better in buildings at a community scale

Daniel Morton — Thu, 07 Aug 2025 18:05:45 +0000

New report evaluates how we can use energy better in buildings at a community scale Daniel Morton Thu, 08/07/2025 - 12:05

Daniel Morton

RASEI Fellow Gregor Henze is a co-author and co-editor on a new report from the International Energy Agency (IEA) Energy in Buildings and Communities Programme (EBC), evaluating the approaches aiming to use energy more efficiently in buildings and districts.

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Read the Report

Decarbonization of the electricity grid and the electrification of transport, heat, and industry related energy consumption are at the heart of many governments’ policies to reach ambitious targets to reduce greenhouse gas emissions. The energy consumed by buildings, in building them and regulating the temperature in them, account for about 35 % of global energy use. The integration of variable renewable energy sources into power grids and the growing electricity demand reinforce the need for energy flexibility, a key approach to improve energy savings. Buildings should be able to adapt. Adapt to weather conditions, to their users’ needs, and to the requirements of the energy grid.

This report, that brings together nineteen international experts from across the globe, including RASEI Fellow Gregor Henze, (who was also one of four co-editors), summarizes years of working reviewing the state-of-the-art methodologies for the evaluation of energy flexibility at the building cluster level. While there are technologies to provide energy flexibility at a single building level (such as smart thermostats), this work looks at harnessing savings at a larger scale, aggregating control at scales of multiple houses, buildings, even neighborhoods and towns. Energy flexibility on a community scale is the ability of a group of buildings, such as a neighborhood, an office complex, or a campus, to coordinate when and how they use electricity. Instead of each building operating independently, they work together in a coordinated fashion to shift their energy consumption to time when electricity is cheaper, more abundant, and cleaner. For example, on a day where it is forecast to be hot in the afternoon, everyone might want air conditioning. A flexible building cluster might pre-cool some buildings in the morning when more energy is available, stagger when different buildings ramp up their cooling systems, and use stored energy or on-site solar panels during peak demand hours. By coordinating amongst buildings the power supply can be balanced with the demands across the grid, while comfort for the building occupants can be maintained.

The report highlights that energy flexibility at this level remains a challenge, both in terms of technical challenges and hesitancy in adoption. These are challenges that are being solved. The report highlights innovations that address the technical needs and strategies that are being used to enhance adoption.

As we move to a modern power grid, the energy needs of the building sector will continue to be a challenge. This report contributes to the development of energy flexibility on an community scale, summarizing the technical and practical applications of energy flexibility. This review classifies and addresses four critical areas to systematically understand energy resilience (1. Defining energy resilience; 2. Understanding relevant disruptions; 3. Quantifying resilience and 4. Improving overall resilience), and identifies four main research gaps (1. Lack if a universal definition; 2. Understanding disruptions; 3. Evaluation metrics and 4. improvement strategies). The report then goes on to describe the development of energy flexibility characterization methods to an adaptive method, demonstrated through two case studies, and how these types of methods illustrate building-grid interactions. To move this forward the report also presents an open-source, community driven tool for forecast creation and evaluation. The power of this tool is demonstrated in a collaborative exercise involving 10 research teams worldwide. The results show significant promise, with the authors suggesting that more demonstrations of this approach across a broad range of systems will validate this approach and make it more robust.

While technical challenges remain, this report shows that the building blocks for community-scale energy coordination and flexibility are falling into place. The next step is moving this into more real-world scenarios. Using the technologies that have been developed in actual neighborhoods and communities to prove their effectiveness across different systems, environments and at scale.

August 2025

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RASEI Fellow Gregor Henze Honored as a member of the 2025 IBPSA Fellows Class

Daniel Morton — Mon, 04 Aug 2025 20:18:14 +0000

RASEI Fellow Gregor Henze Honored as a member of the 2025 IBPSA Fellows Class Daniel Morton Mon, 08/04/2025 - 14:18

Daniel Morton

The International Building Performance Simulation Association, or IBPSA, was founded to advance and promote the science of building performance simulation in order to improve the construction, operation, and maintenance of new and existing buildings worldwide. Building performance simulation uses detailed computer models to evaluate how buildings perform under varying conditions, in terms of energy efficiency, carbon footprint, and heating and cooling efficiency.

Every two years the IBPSA inducts a cohort of Fellows, recognizing those individuals who have attained distinction in the field of building performance simulation by either the teaching of major course or by way of research, simulation code development, or the application of building simulation on projects of significant scope.

This year RASEI Fellow Gregor Henze was named as part of the 2025 Fellows class, one of the highest honors in this field. Henze was selected for his pioneering work in model predictive control, which uses mathematical models to predict building system behavior and optimize energy use and comfort; simulation model development, which involves creating and improving mathematical models to explore how buildings respond to factors like weather, utility price signals or occupancy; and building-to-grid integration, which connects buildings to the power grid so the former can respond to electric grid system needs, such as reducing usage during peak times. He is also recognized for his international leadership in research and education.

Gregor is a widely recognized international leader in this field, with recent research sabbaticals in Spain and Australia, and leading educational collaborations with partners in Italy. With more than 200 peer-reviewed publications across topics including advanced building control, data science for energy and buildings, energy flexibility and novel district heating and cooling networks, Gregor has made varied contributions to the field. This innovation is also being translated to applications, Henze is the co-founder and chief scientist at QCoefficient, Inc., and co-founder of Whisper Energy, startups that explore different aspects of technologies that help buildings proactively manage their energy use in real time.

Congratulations Gregor! The induction into the 2025 Fellows class will be formally recognized in August 2025 at the Building Simulation 2025 Conference in Brisbane, Australia.

August 2025

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