Technology Reports

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May 14, 2020
Challenges and Opportunities to Secure Buildings from Cyber Threats
Paper provides an overview of commercial control systems and potential cybersecurity risks to them, and discusses efforts underway to protect them.
April 30, 2020
SEE Action: Determining Utility System Value of Demand Flexibility from Grid-Interactive Efficient Buildings
Describes how utility’s current methods and practices of investment can be enhanced to determine the value of grid services from demand flexibility.
April 30, 2020
SEE Action: Grid-Interactive Efficient Buildings: An Introduction for State and Local Governments
This report describes grid-interactive efficient buildings in the context of state and local government interests.
April 15, 2020
Critical Material Supply Chain Analysis: Magnetocalorics
This report provides insights into the market, regulatory, technology, and cost drivers that most impact the adoption of MCR systems in the U.S.
March 26, 2020
Grid-interactive Efficient Buildings Technical Report Series: Whole-Building Controls, Sensors, Modeling, and Analytics
This report explores the benefits and challenges of building-level grid service integration and identifies the gaps in building-level integration tech
March 26, 2020
Grid-interactive Efficient Buildings Technical Report Series: Heating, Ventilation, and Air Conditioning (HVAC); Water Heating; Appliance...
This report focuses on heating, ventilation, and air conditioning (HVAC); water heating; appliances; and refrigeration.
March 26, 2020
Grid-interactive Efficient Buildings Technical Report Series: Lighting and Electronics
This report analyzes connected lighting systems and consumer electronics/IT equipment technologies.
March 26, 2020
Grid-interactive Efficient Buildings Technical Report Series: Windows and Opaque Envelope
This report focuses on dynamic window and opaque envelope technologies.
March 26, 2020
Grid-interactive Efficient Buildings Technical Report Series: Overview of Research Challenges and Gaps
This overview report provides background on core concepts of GEBs and serves as an introduction to these technical reports.
February 14, 2020
Refrigerants: Market Trends and Supply Chain Assessment, February 2020
This report assessed the current state of existing and low-GWP refrigerants for major end-use applications and incorporates a market overview.
December 21, 2017
Energy Savings Potential and RD&D Opportunities for Commercial Building HVAC Systems
BTO commissioned this characterization and technology assessment of HVAC systems for commercial buildings.
November 28, 2017
R&D Opportunities for Membranes and Separation Technologies in Building Applications
This report recommends innovative membrane and separation technologies that can assist the Building Technologies Office in achieving its 2030 goal.
September 11, 2017
Benefit-Cost Evaluation of U.S. Department of Energy Investment in HVAC, Water Heating, and Appliance Technology
This study conducted a benefit-cost impact evaluation of the research and development activities of the Building Technologies Office on investments in
June 19, 2017
Impacts of Commercial Building Controls on Energy Savings and Peak Load Reduction
This study investigated the potential energy savings from implementation of 34 basic and advanced controls measures and eliminating common faults...
April 18, 2017
R&D to Market Success: BTO-Supported Technologies Commercialized from 2010-2015
The BTO Technology Commercialization report is an annual publication offering the latest information on successfully commercialized technologies.
December 16, 2016
Overview of Existing and Future Residential Use Cases for Connected Thermostats
This joint Emerging Technologies and Residential Buildings Integration report is intended to help inform future technology deployment ...
November 17, 2016
Decision Science and Market Transformation Pathways: Workshop Report and Recommendations

This report is a result of the Decision Science and Market Transformation Pathways Workshop, supported by the U.S. Department of Energy, the...

September 19, 2016
Alternative Refrigerant Evaluation for High-Ambient-Temperature Environments: R-22 and R-410A Alternatives for Rooftop Air Conditioners

The Oak Ridge National Laboratory (ORNL) High-Ambient-Temperature Evaluation Program for Low-Global Warming Potential (Low-GWP) Refrigerants aimed...

July 7, 2016
The Future of Air Conditioning for Buildings Report

This report characterizes the current landscape and trends in the global air conditioning (A/C) market, including discussion of both direct and...

June 21, 2016
Credit: Navigant
Energy Savings Potential and RD&D Opportunities for Commercial Building Appliances Report (2015 Update)

The Department of Energy commissioned a technology characterization and assessment of appliances used in commercial buildings for cooking, cleaning...

October 15, 2015
Alternative Refrigerant Evaluation for High-Ambient-Temperature Environments: R-22 and R-410A Alternatives for Mini-Split Air Conditioners

This publication is a final report for Oak Ridge National Laboratory’s High-Ambient-Temperature Evaluation Program for Low Global Warming Potential...

October 9, 2015
Pump and Fan Technology Characterization and R&D Assessment
This report provides the Building Technologies Office (BTO) and the research and development (R&D) community with a technical and market analysis ...
October 2, 2015
Research & Development Opportunities for Joining Technologies in HVAC&R

This report identifies and characterizes R&D opportunities with HVAC&R joining technologies for the Building Technologies Office (BTO) to...

July 27, 2015
Development and Evaluation of a Sandia Cooler-based Refrigerator Condenser

This report describes the first design of a refrigerator condenser using the Sandia Cooler – an air-bearing supported rotating heat-sink impeller.

March 28, 2014
Buildings-to-Grid Technical Opportunities: Introduction and Vision
This report outlines the technical opportunities for building assets to seamlessly integrate and transact with grid operations.