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Case Studies

This library contains research reports produced by the Building America program and other building science resources used to support this Solution Center. The materials cover both new construction and existing homes. Use the search box and/or the filters to explore hundreds of residential building resources. Access to some references not produced by Building America may require purchase from the publisher. Documents are listed alphabetically. While we continually update our database, links may have changed since posting. Please contact our webmaster if you find broken links.

Author(s): BSC
Organization(s): BSC
Publication Date: July, 2012

Case study of a Concord four-square home retrofitted by Building Science Corporation in Massachusetts.

Author(s): Mittereder, Poerschke
Organization(s): IBACOS
Publication Date: June, 2017

This case study presents a cold-climate project that examines an alternative approach to ground source heat pump (GSHP) ground loop design. The innovative ground loop design is an attempt to reduce the installed cost of the ground loop heat exchange portion of the system by containing the entire ground loop within the excavated location...

Author(s): PNNL
Organization(s): PNNL, NREL
Publication Date: September, 2013

Case study of a DOE 2013 top innovation about best practices for high-efficiency window air conditioning units based on research by the National Renewable Energy Laboratory.

Author(s): PNNL
Organization(s): PNNL, LBNL
Publication Date: September, 2013

Case study on a DOE 2013 top innovation about high-performance furnace blowers for heating and cooling describing research by Lawrence Berkeley National Laboratory.

Author(s): Poerschke, Beach
Organization(s): IBACOS
Publication Date: February, 2016
Report onhow space-conditioning systems are operating in the field and if these systems are meeting required standards.
Author(s): Mallay
Organization(s): HIRL
Publication Date: January, 2016
Report on heating and cooling air-distribution ducts that are insulated, installed close to the ceiling in a vented attic and covered with attic insulation to minimize energy loss.
Author(s): Cummings, Withers, Kono
Organization(s): BA-PIRC
Publication Date: July, 2015
Report on variable-capacity air conditioning and heat pump units.
Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2014

This certified DOE Zero Energy Ready Home, is the first home in the world to use a tri-generation system to supply electricity, heating, and cooling on site.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2009

Case study about approaches to comprehensive retrofits that are in reach of the ordinary builder.

Author(s): BA-PIRC
Organization(s): BA-PIRC
Publication Date: October, 2013

Case study describing a multifamily deep energy retrofit project in Annapolis, Maryland.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2009

Case study describing a retrofit project in the hot-dry and mixed-dry climate zones.

Author(s): PNNL
Organization(s): PNNL
Publication Date: January, 2012

Case study about an energy efficient retrofit project in hot-humid climates.

Author(s): PNNL
Organization(s): PNNL
Publication Date: March, 2012

Case study describing a deep energy renovation of a home in Florida.

Author(s): PNNL
Organization(s): PNNL
Publication Date: November, 2012

Case study describing a deep energy renovation of a home in Florida.

Author(s): PNNL
Organization(s): PNNL
Publication Date: December, 2011

Case study about cost-effectively reducing energy use by over 50% in an existing home.

Author(s): PNNL
Organization(s): PNNL
Publication Date: September, 2009

Case study describing a retrofit project in the hot-dry and mixed-dry climate zones.

Author(s): PNNL
Organization(s): PNNL
Publication Date: December, 2011

Case study about an energy efficient renovation in the cold climate.

Author(s): Williamson, Aldrich
Organization(s): CARB
Publication Date: August, 2015
Report on field monitoring of inverter-driven ASHPs in cold-climate homes.
Author(s): Walker, Stratton
Organization(s): LBNL
Publication Date: August, 2015
Report on performance of current diagnostics as well as a draft test method for use in future air flow evaluations.
Author(s): Walker, Stratton
Organization(s): LBNL
Publication Date: August, 2015
Guidance on performance of current diagnostics as well as a draft test method for use in future air flow evaluations.
Author(s): BSC
Organization(s): BSC
Publication Date: February, 2009

Case study describing a building project in the hot-humid climate zone.

Author(s): Turner, Roux, Walker
Organization(s): LBNL
Publication Date: August, 2015
This study used an advanced airflow, energy and humidity modeling tool to evaluate the potential for residential mechanical pre-scooling strategies to reduce peak electriciy demand.
Author(s): DOE
Organization(s): DOE
Publication Date: November, 2004

Case study describing the New American Home project.

Author(s): NSTAR
Organization(s): NSTAR
Publication Date: May, 2014

Case study describing how combination (combi) space and water heating systems can be used in homes with efficient thermal enclosures, decreasing energy consumption and costs.

Publication Date: June, 2015
Case study on homes that have a single heating plant that provides space and water heating.
Author(s): NSTAR, PARR
Organization(s): NSTAR, PARR
Publication Date: May, 2014

Case study describing a method for evaluating safe installation and operation of combustion appliances in homes undergoing energy efficiency upgrades where indoor air is used for combustion and venting.

Publication Date: September, 2015
Case study describing how researchers monitored heat output and electricity consumption of air-source heat pumps
Publication Date: September, 2015
Case study on high-performance ducts in hot-dry and mixed-dry climates.
Publication Date: August, 2015
Report on the long-term monitoring of mini-split ductless heat pumps.
Publication Date: August, 2015
Report on low-load options in heating, ventilation, and air conditioning equipment used in multifamily homes.
Author(s): CARB
Organization(s): CARB
Publication Date: November, 2013

Case study about maximizing efficiency of hydronic systems in single and multifamily buildings.

Author(s): ARIES
Organization(s): ARIES
Publication Date: May, 2014

Case study about the benefits of replacing resistance heating systems with mini-split heat pumps in cold and mixed-humid climates.

Author(s): PNNL
Organization(s): PNNL
Publication Date: August, 2012

Case study about retrofitting a leaky air handler. 

Author(s): CARB
Organization(s): CARB
Publication Date: December, 2014

Case study aimed at helping contractors and building owners choose the best ventilation for existing homes.

Author(s): PARR
Organization(s): PARR
Publication Date: October, 2013

Case study that identifies best practices, costs, and savings associated with balancing steam distribution systems through increased main line air venting, radiator vent replacement, and boiler control system upgrades.

Author(s): NREL, Habitat for Humanity of Metro Denver
Organization(s): NREL, Habitat for Humanity of Metro Denver
Publication Date: April, 2008

Case study describing a Habitat for Humanity zero net energy home in Denver.

Author(s): IBACOS
Organization(s): IBACOS, NREL
Publication Date: December, 2010

Case study describing innovative technologies, construction techniques, products, and design trends in new home construction.

Author(s): Steven Winter Associates
Organization(s): CARB, Steven Winter Associates
Publication Date: August, 2009

Case study describing a retrofit project in the cold and very-cold climate zones.