Thermostats are the central switch that controls operation of heating and cooling systems—commonly the largest energy end use in homes. That energy setup/setback has potential for energy savings has been demonstrated repeatedly in well-controlled evaluations. Thus understanding how the occupants and thermostat interact is key to controlling energy use. Programmable thermostats have often been bypassed by occupants. Newer “smart” thermostats get around these problems by self-programming depending on heuristic or machine learning evaluation of user control habits as well as sensed occupancy. These modern devices use a combination of data on occupancy, weather, and thermostat-setting preference to help consumers with automated setback/setup schedules.
Researchers at FSEC installed smart thermostats, primarily the Nest Learning Thermostat, in more than 30 research homes. A full year of sub-metered hourly temperature and heating and cooling system operation data were available prior to the installation of the smart thermostat allowing detailed evaluation of temperature-related changes. Overall measured heating and cooling energy savings averaged 9.5% with some significant variation among homeowners.
What are the latest developments in electric vehicle technology, policy and planning? Find out at the EV Transportation and Technology Summit on October 17-20, 2016.
The University of Central Florida’s FSEC conducts energy audits, renewable energy assessments, and technical assistance for the USDA Rural Energy for America Program (REAP) grant and loan program which is specifically for renewable energy systems and energy efficiency improvements. Any Florida agriculture operation or rural small business is eligible for FSEC support. The USDA subsidizes 75% of FSEC’s audit cost.
The audit includes an on-site visit to inventory energy use, utility bill analysis, evaluation of efficiency improvement options, projected annual energy savings, all summarized in a REAP-required Technical Report, and assistance with completing the technical portions of the application. Grants are eligible for up to 25% of eligible project costs and range from $2,500-$500,000 for renewable energy systems and $1,500-$250,000 for energy efficiency improvements.
Since the introduction of the automobile in the early 1900’s, there has traditionally been a separation between transportation energy and residential/commercial/industrial energy. With electric vehicles on the rise, however, energy will need to flow freely between vehicles and the grid.
As we move towards this intersection, we will begin to encounter conflicts between the needs of the vehicle owner and the desires of the grid/building energy operator. For example, the electric vehicle owner is concerned about getting home every day, and ensuring that the battery’s lifetime is not adversely impacted. The grid operator is concerned with maintaining high power quality and reducing the risk of outages as renewable energy sources are increasingly added to the mix. Understanding distinctive needs of each user will lead to better management of energy flows that can benefit transportation, the grid, and society as a whole. This presentation will explore how the needs of the vehicle may be met, while also providing added value to the grid.
Dr. Paul Brooker Biographical Sketch
Dr. Brooker received his B.S. in Chemical Engineering from Brigham Young University in 2004 and his Ph.D. from the University of Connecticut in 2009. After graduating, Dr. Brooker came to UCF’s FSEC, where he has participated in research ranging from fuel cells to electric vehicles to solar photovoltaics.
Within the DOE-sponsored Fuel Cell High Temperature Membrane Working Group at FSEC, Dr. Brooker’s role was to apply electrodes onto novel membranes, and to investigate the performance in an operating fuel cell environment. In addition, Dr. Brooker investigated the use of heteropolyacids (HPAs) for reducing membrane degradation during accelerated stress testing. As part of the Electric Vehicle Transportation Center (EVTC), Dr. Brooker has modeled the use of fuel cells in electric vehicles, as well as electric vehicle infrastructure needs. His research is investigating the potential for fuel cell vehicles to contribute to energy needs beyond transportation, such as grid ancillary services, back-up power, and distributed energy resource management. Dr. Brooker is a project leader within the Photovoltaic Manufacturing Consortium, where he is directing research on diamond wire slicing of silicon ingots. This research is investigating methods to understand diamond wire wear and its effect on the surface of the cut wafer. This understanding could lead to improved control of wafer surfaces, reduced consumption of diamond wire, and increased wafer throughput, all by optimizing the slicing parameters.