Published: Jan. 19, 2024 By

If you go
  • What: 2024 Embark Showcase, the inaugural showcase of the Embark Deep Tech Startup Creator
  • When: Wednesday, Jan. 24, 2-6 p.m. Doors open at 1:30 p.m.Ìý A networking reception with refreshments will be held from 4-6 p.m., and the bar will be open.
  • Where: The Riverside, 1724 Broadway, Boulder

required. Seating is limited.

WHISPER Energy, a startup aimingÌýto bring to marketÌýa wireless sensor platform, will be presentedÌýat the University of Colorado Boulder's 2024 Embark Showcase on Jan. 24. DevelopedÌýby a multi-institutional team under the leadership of ProfessorÌýGregor Henze, theÌýinnovative technology seeksÌýto optimize energy consumption in both residential and commercial settingsÌýby intelligently adjustingÌýusage based onÌýdetecting human presence.

In 2023, Henze wasÌýselectedÌýasÌýone of 12 entrepreneurs for the inauguralÌýEmbark Entrepreneurs in Residence program for hisÌýWireless Home Identification and Sensing Platform for Energy Reduction (WHISPER) technology.Ìý

Embark, CU Boulder’s startup catalystÌýfor deep tech ventures, connects entrepreneurs with groundbreakingÌýinnovations. The program offers selected entrepreneurs intellectual property (IP) rights, salary support, grant fundsÌýand introductions to investors.

Galen Williams, formerly an Entrepreneur in Residence at Venture Partners at CU Boulder and now affiliated with the University of California Riverside,Ìýwill lead WHISPER Energy.

We spoke with Henze about the project.

Gregor Henze
When did you start working on WHISPER?

The WHISPER technologyÌýwas the outgrowth of my Advanced Research Projects Agency-Energy (ARPA-E ) project from 2017 to 2021, which was part of the SENSOR program.

What does Whisper'sÌýsensor platform do?

Many regions of the world rely onÌýheating, ventilationÌýand air-conditioning (HVAC) systems to provide productive, comfortableÌýand healthy indoor environments throughÌýautomatic building controls. The increasing use of HVAC systems globally, driven byÌýclimate change, population growth and industrialization, has led to a surge in energy consumption. Unfortunately, these systems often operate continuouslyÌýregardless of human presence, resulting inÌýunnecessary energy consumption. The heating, ventilationÌýand cooling of unoccupied building spaces significantly contribute to the environmental impacts associated with carbon-based electric power generation, requiring urgent attention. We developed the WHISPERÌýsystem to address the energy and power demand triggered by human presence in homes.

WHISPER incorporates a maintenance-free and privacy-preserving human occupancy detection system. It utilizesÌýa local wireless network of battery-free environmental, acoustic energyÌýand image sensors employingÌýRFID backscattering technology. These sensors are strategically placed in homes to monitor andÌýrecord empirical data for variousÌýmodalities,Ìýtransmitting the informationÌýto a base station. At the base station, machine-learning algorithms, including a hierarchical sensor fusion algorithm, infer human presence based on the received data.ÌýResults from the prototype system demonstrate aÌýhuman presence detectionÌýaccuracy exceeding 95 percent, with ongoing commercialization efforts suggesting approximately 99 percentÌýaccuracy.

Using machine learning, WHISPER enables various applications based on its binary occupancy prediction. ThisÌýallowsÌýsituation-specific controls targeted at both personalized smart home needs and contributing to opportunities for modernizing the electric grid.

Why did you develop WHISPER?

The original intent was to develop a technology that reduces unnecessary energy consumption in homes as a result of conditioning homes while unoccupied. Accurate occupancy detection was crucialÌýto preventÌýusers from disabling the system, in other words we needed to minimize false negatives (incorrectly assuming the house is empty, potentially annoying occupants)Ìýas well as false positives (wrongly assuming the house is occupied, leading toÌýunnecessary energy consumption). At the end of the project we discovered additional applications for the versatileÌýsensing platform that relate to indoor air quality and assistive technology for the elderly who wishÌýto remainÌýin their homeÌýand smart grid applications.

Whisper Energy is actively workingÌýto develop solutions based on thisÌýsensing platform to address the challenges of creating healthy and energy-efficient homes and workplaces.