Dane Christensen
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View article: Demonstrating the Transient System Impact of Cyber-Physical Events Through Scalable Transmission and Distribution (T&D) Co-Simulation
Demonstrating the Transient System Impact of Cyber-Physical Events Through Scalable Transmission and Distribution (T&D) Co-Simulation Open
Modern power systems become more vulnerable to cyber threats due to their growing interconnectivity, interdependence, and complexity. Widespread deployment of distributed energy resources (DERs) further expands the threat landscape to the …
View article: Clean Energy Cybersecurity Accelerator: Cohort 2 - Asimily Public Report
Clean Energy Cybersecurity Accelerator: Cohort 2 - Asimily Public Report Open
The U.S. Department of Energy (DOE) Office of Cybersecurity, Energy Security, and Emergency Response (CESER) sponsors the Clean Energy Cybersecurity Accelerator (TM) (CECA) to expedite the deployment of emerging security technologies that …
View article: Technical Highlight: NREL Delivers In-Home HVAC Efficiency Testing Solutions (Fact Sheet)
Technical Highlight: NREL Delivers In-Home HVAC Efficiency Testing Solutions (Fact Sheet) Open
Researchers at the National Renewable Energy Laboratory (NREL) have recently developed two simple in-home efficiency test methods that can be used by technicians, researchers, or interested homeowners to verify the correct operation and en…
View article: Clean Energy Cybersecurity Accelerator: Cohort 2 - runZero Public Report
Clean Energy Cybersecurity Accelerator: Cohort 2 - runZero Public Report Open
The U.S. Department of Energy (DOE) Office of Cybersecurity, Energy Security, and Emergency Response (CESER) sponsors the Clean Energy Cybersecurity Accelerator™ (CECA) to expedite the deployment of emerging security technologies that addr…
View article: Field Test Best Practices
Field Test Best Practices Open
This report can be used as a resource for advice on every stage of field research in residential buildings. It can be used as a reference document to find descriptions of specific types of common measurements and tricks of the trade, or as…
View article: Model predictive control for heat transfer to fluids
Model predictive control for heat transfer to fluids Open
Model predictive control methods are disclosed which provide, among other things, efficient strategies for controlling heat-transfer to a fluid.
View article: Method For Brazing And Thermal Processing
Method For Brazing And Thermal Processing Open
The present invention includes a method for brazing of two objects or heat treatment of one object. First, object or objects to be treated are selected and initial conditions establishing a relative geometry and material characteristics ar…
View article: Eaton High Impact Project (Cooperative Research and Development Final Report)
Eaton High Impact Project (Cooperative Research and Development Final Report) Open
The NREL team will partner with Eaton to evaluate control strategies for managing Electric bus (E-bus) fleets for grid services. NREL will develop a replicable platform for evaluating EV fleet management and quantifying benefits from grid …
View article: Zero Export Feeder Through Transactive Markets
Zero Export Feeder Through Transactive Markets Open
This presentation summarizes how HELICS was used during a collaborative project with Energy Web Foundation and Exelon Corporation. The primary focus of the research was on designing a transactive energy market to accomplish zero export at …
View article: Dynamic Photovoltaic Cell Technology Transforms Windows Into Clean Energy Producers: NREL Creates Self-Tinting Solar Window with Perovskite Technologies
Dynamic Photovoltaic Cell Technology Transforms Windows Into Clean Energy Producers: NREL Creates Self-Tinting Solar Window with Perovskite Technologies Open
SwitchGlaze is a technology offering fully transparent, infrared-light-absorbing designs with high solar efficiency. Relying on a thin coating of a perovskite material, SwitchGlaze transforms from transparent to tinted in response to heat,…
View article: End-Use Load Profiles for the U.S. Building Stock: Technical Advisory Group Meeting #5
End-Use Load Profiles for the U.S. Building Stock: Technical Advisory Group Meeting #5 Open
This presentation summarizes the items discussed during the End-use Load Profiles for the U.S. Building Stock: Technical Advisory Group Meeting #5 on December 17, 2019.
View article: Bulk Electric Power System Risks From Coordinated Edge Devices
Bulk Electric Power System Risks From Coordinated Edge Devices Open
As smart load adoption grows on the electric power system, potential for losing load diversity increases, possibly in ways that impact system stability. Cloud computing resources are able to coordinate large amounts of behind-the-meter loa…
View article: Technoeconomic Design of a Geothermal-Enabled Cold Climate Zero Energy Community
Technoeconomic Design of a Geothermal-Enabled Cold Climate Zero Energy Community Open
Development of a zero energy community is more costly in northern cold climates than in moderate regions. Building energy loads are higher, thanks to the colder weather, and site solar photovoltaics (PV) are less productive due to lower so…
View article: Residential Battery Modeling for Control-Oriented Techno-Economic Studies: Preprint
Residential Battery Modeling for Control-Oriented Techno-Economic Studies: Preprint Open
Electrochemical batteries, which serve as electric energy storage devices, are becoming increasingly popular among residential buildings that incorporate solar photovoltaic (PV) systems to help meet their energy needs. Battery economics ar…
View article: Evaluation of Uplight Energy Saving Actions Using ResStock<sup>TM</sup> (Summary of Results)
Evaluation of Uplight Energy Saving Actions Using ResStock<sup>TM</sup> (Summary of Results) Open
As part of a portfolio of product offerings, Uplight produces energy savings estimates to inform a utility’s residential customers of the expected benefits that would arise from adopting energy efficiency measures, which are termed “energy…
View article: Evaluation of Uplight Energy Saving Actions Using ResStock<sup>(TM)</sup>(Summary of Results)
Evaluation of Uplight Energy Saving Actions Using ResStock<sup>(TM)</sup>(Summary of Results) Open
ResStock was used to estimate energy savings for a set of actions that Uplight may recommend to a homeowner. This report discusses the methodology and provides a summary of the results.
View article: Convex Relaxation of Grid-Connected Energy Storage System Models With Complementarity Constraints in DC OPF
Convex Relaxation of Grid-Connected Energy Storage System Models With Complementarity Constraints in DC OPF Open
Including complementarity constraints in energy storage system (ESS) models in optimization problems ensure an optimal solution will not produce a physically unrealizable control strategy where there is simultaneous charging and dischargin…
View article: Geothermal-Enabled Zero Energy Electric Community: An Integrated System Design Study
Geothermal-Enabled Zero Energy Electric Community: An Integrated System Design Study Open
In northern climates, developing a zero-energy community is increasingly costly. Building loads are higher, thanks to the colder weather, and solar PV is both less effective, due to lower solar incidence, and misalignment with the building…
View article: HVAC Loads in High-Performance Homes (Presentation)
HVAC Loads in High-Performance Homes (Presentation) Open
This presentation was delivered at the ASHRAE 2010 Annual Summer Conference on June 27, 2010, and addresses humidity and AC loads in energy efficient houses.
View article: Final Report: TIP-337 Home Battery System for Cybersecure Energy Efficiency and Demand Response
Final Report: TIP-337 Home Battery System for Cybersecure Energy Efficiency and Demand Response Open
Many challenges related to energy use and grid participation face the residential building sector and utilities that serve our homes today. To reduce energy consumption, increase grid service participation, and improve homeowner benefits, …
View article: Non-Simultaneous Charging and Discharging Guarantees in Energy Storage System Models for Home Energy Management Systems
Non-Simultaneous Charging and Discharging Guarantees in Energy Storage System Models for Home Energy Management Systems Open
In this paper we provide non-simultaneous charging and discharging guarantees for a linear energy storage system (ESS) model for a model predictive control (MPC) based home energy management system (HEMS) algorithm. The HEMS optimally cont…
View article: Control of Energy Storage in Home Energy Management Systems: Non-Simultaneous Charging and Discharging Guarantees
Control of Energy Storage in Home Energy Management Systems: Non-Simultaneous Charging and Discharging Guarantees Open
In this paper we provide non-simultaneous charging and discharging guarantees for a linear energy storage system (ESS) model for a model predictive control (MPC) based home energy management system (HEMS) algorithm. The HEMS optimally cont…
View article: Economic Sizing of Batteries for the Smart Home
Economic Sizing of Batteries for the Smart Home Open
This webinar on the economic sizing of batteries for smart, connected homes was presented on December 14, 2017.
View article: Saving Energy Through Advanced Power Strips (Poster)
Saving Energy Through Advanced Power Strips (Poster) Open
Advanced Power Strips (APS) look just like ordinary power strips, except that they have built-in features that are designed to reduce the amount of energy used by many consumer electronics. There are several different types of APSs on the …
View article: User-preference-driven model predictive control of residential building loads and battery storage for demand response
User-preference-driven model predictive control of residential building loads and battery storage for demand response Open
This paper presents a user-preference-driven home energy management system (HEMS) for demand response (DR) with residential building loads and battery storage. The HEMS is based on a multi-objective model predictive control algorithm, wher…