Energy Bites – May 28, 2021

Bite 1: Linear LED Retrofit Solutions Now Part of the ‘Million LED Challenge’ Program
Nicole Hathaway, California Lighting Technology Center
Bite 2: Integrated Building Control Systems Laboratory Evaluation
Tristan Bond, California Lighting Technology Center
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Energy Bites – May 21, 2021

Bite 1: Equity Mapping Utlity-Scale Renewable Portfolio Standard Energy Facilities
Ingrid Behrsin, Public Scholarship & Engagement
Johanna Heyer, Civil & Environmental Engineering
Bite 2: Automated Emissions Reduction: Bringing Emissions Aware Controls to Smart Devices
Henry Richardson, WattTimeTime: 12pm to 1pm
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Energy Bites – May 14, 2021

Bite 1: Developer and Resident Experience with Electrification of Affordable Housing
Ashley DePew, Energy Graduate Group/Energy and Efficiency Institute
Eli Alston-Stepnitz, Department of Sociology
Bite 2: Home Occupancy Detection and Electricity Response to Heat Waves
Jon Martindill, Energy Graduate Group/Center for Water-Energy Efficiency
Time: 12pm to 1pm
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Energy Bites – May 7, 2021

Bite 1: Low Cost, High Accuracy Building Ventilation Screening Tool
Caton Mande, Western Cooling Efficiency Center
Bite 2: Energy Barrier for Achieving the Goal of Sustainability in Indoor Farming
Shamim Ahamed, Department of Biological and Agricultural Engineering
 12pm to 1pm
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Energy Bites – April 30, 2021

Bite 1: Integrating Electric Vehicles and the Electricity Grid
Alan Jenn, Plug-In Hybrid & Electric Vehicle Research Center
Bite 2: Optimizing Commercial Building Operations under Real-time Conditions
Cori Jackson, California Technology Lighting Center
 12pm to 1pm
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Energy Bites – April 23, 2021

Bite 1: Opportunities and Barriers of Decarbonizing Sacramento Multifamily Buildings
Rhys Davis, Energy Graduate Group
Bite 2: Aerosol Sealing Applications in Existing Residential Homes
Curtis Harrington, Western Cooling Efficiency Center
 12pm to 1pm
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Large Diameter, Shallow Bore Heat Exchangers for Ground-Source Heat Pumps

Webinar July 8, 2020

Ground-coupled heat pumps reduce cooling load in summer and heating load in winter by using the relatively constant temperature of the earth as the heat exchange medium instead of the outside air. By exchanging heat with the mild ground temperatures, ground-coupled heat pumps are more efficient than air-source designs and use less power during peak electricity demand. The biggest barrier to more widespread adoption of this technology is the cost.

In this webinar, researchers will describe the results from a project investigating a lower cost heat exchanger design for ground-source heat pumps. Researchers developed and validated modeling tools for simulating a ground heat exchanger (GHE) technology, and used those models to estimate the performance of these systems in multiple California climate zones. These modeling tools can be used to facilitate proper GHE sizing for a full range of applications and should streamline acceptance of this emerging technology.


Curtis Harrington–R&D Engineering Supervisor, UC Davis Western Cooling Efficiency Center
Antash Najib – Graduate Student Researcher, UC Davis Western Cooling Efficiency Center

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Putting Vacant Buildings to Sleep

Webinar June 16, 2020

Office and campus buildings consume a lot of electricity when nobody is in them. Why? When UC Davis experienced a 90% reduction in occupancy, electricity use only fell by 15%. When the Empire State Building was nearly 100% vacant, electricity use only fell 28%. What is using all this energy? Can it be safely switched off or reduced? In this webinar, Alan Meier will share the results of a study he led at UC Davis to investigate these types of questions. One of their key findings was that audio/video racks in classrooms are surprisingly large consumers of energy. Alan will discuss some of the challenges to saving electricity and understanding building occupancy. This study and continued work in this area will help UC Davis and other campuses/offices save energy.


Dr. Alan Meier–Adjunct Professor, UC Davis Environmental Science & Policy; Faculty Researcher, UC Davis Energy and Efficiency Institute; Senior Scientist, Lawrence Berkeley National Laboratory

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