Library

Report providing builders in the hot-dry and mixed-dry climates with guidance for building homes that have whole-house energy savings of 40% over the Building America benchmark with no added overall costs for consumers.

A guidebook helping builders in hot-humid climates design and construct homes for energy efficiency, durability, health, safety, and comfort.

Research study estimating potential energy savings relative to conventional ducted air distribution, and identifying equipment requirements, costs, and barriers.

Case study providing homeowners guidance on installing window air conditioners.

Report describing an air distribution system composed of a series of uniformly-sized ducts that terminate in rooms throughout the home and return to a central manifold, similar in fashion to a “home-run” cross-linked polyethylene plumbing system.

Research study describing how envelope modifications in heating, ventilation, and air conditioning, and domestic hot water and renewable resources can result in considerable energy reductions, using the first full year of detailed data collected about a single-family home that experienced a series...

Document providing guideance and considerations for duct design in an energy efficient house.

Report describing two retrofit duct sealing techniques - manually-applied sealants and injecting a spray sealant, that were implemented in several low-rise multi-unit buildings in North Carolina.

Report summarizing systems research activities for new housing in hot-humid climates, including NightCool, interior duct systems in manufactured housing, ventilation and dehumidification, plug load reduction and solar and conventional hot water.

Report on adding insulation to load-bearing mass masonry buildings.

Report outlining workflow and results of regression models on monthly and daily utility data (meter readings of electricity consumption), outlining a process for screening and gathering useful results from inverse models.

Report analyzing design heating load sizing methods for superinsulated homes in cold climates and comparing them to the actual energy usage to determine if the building load calculation methodology should be changed for calculating the design heating load of these homes.

Report describing partner approaches to achieving the Building America goal of 30% whole-house source energy savings using packages adopted at the community scale, using building projects in Florida as a reference.

Report about a building project in the marine climate.

Report summarizing commissioning, short-term testing, utility bill data analysis, and results of on-site monitoring of a deep energy retrofit.

Case study describing solar thermal and photovoltaic systems in new construction.

Brochure intended to provide readers with a working knowledge of residential heating and cooling duct systems.

Information sheet offering general recommendations on supplemental humidity control and outlines viable system configurations.

Article describing selecting insulation for minimizing condensation risks.

Report describing the recommended best practices to achieve energy savings without compromising health or safety.

Document providing a resource to help builders large and small build high-quality, energy-efficient homes that achieve 30% energy savings in space conditioning and water heating in the cold and very cold climates.

Document providing a resource to help builders large and small build high-quality, energy-efficient homes that achieve 30% energy savings in space conditioning and water heating in the hot and humid climate.

Document providing a resource to help builders large and small build high-quality, energy-efficient homes that achieve 30% energy savings in space conditioning and water heating in the hot-dry and mixed-dry climates.

Document providing a resource to help builders large and small build high-quality, energy-efficient homes that achieve 30% energy savings in space conditioning and water heating in the mixed-humid climate.

Document providing a resource to help builders large and small build high-quality, energy-efficient homes that achieve 30% energy savings in space conditioning and water heating in the marine climate.

Report provides a proposed set of guidelines for estimating the energy savings achieved by a package of retrofits or an extensive rehabilitation of an existing home.

Document describing the Building America research benchmark for the residential building program.

Document testing feasibility of constructing a new single-family home engineered to reduce the home's energy loads to an absolute minimum so that most needs could be met by solar systems.

Report summarizing research results for the 30% energy savings level and demonstrates that lead builders can successfully provide 30% homes in the Marine Climate Region on a cost-neutral basis.

Report summarizing research results for the 30% energy savings level and demonstrates that lead builders can successfully provide 30% homes in the Hot-Dry / Mixed-Dry Climate Region on a cost-neutral basis.

Web report explaining how correct filter sizing is an issue that applies to all new and existing homes that use ducted HVAC systems.

Report describing ventilation system design, including a central fan integrated supply (CFIS) system, made up of a 6-inch outdoor air intake duct connected to the return side of the air handler with a fan cycling control to make sure the fan runs a programmed minimum amount of time.

Report about City of Meriden Housing Authority's (MHA) collaboration with Jonathon Rose Companies to complete a gut renovation of 126 residential units in the Chamberlain Heights retrofit project.

Report on improving passive design adoption rates.

Report describing combined space- and water-heating (combi) systems using a high-efficiency direct-vent burner.

Report summarizing one year of monitoring and analysis of the effectiveness of a space conditioning system at maintaining temperature and relative humidity levels in a test home, as well as room-to-room differences and the actual measured energy consumption by the space conditioning system.

Part I of the Guide addresses walls constructed with 2x6 wood frame studs, wood structural panel (WSP) sheathing as exterior sheathing, gypsum board as interior sheathing, and a cladding system installed over WSP sheathing in low-rise residential buildings up to three stories in height. Walls with...

Research report anayzing the results of a large retrofit project, turining an old school into near zero energy consumption apartments in Greenfield MA.

Report on experiments comparing the cooling and heating seasonal and peak demand performance of different variable-capacity air conditioning and heat pump units.

Part of a larger LBNL report (Deep Energy Retrofit Guidance for the Building America Solutions Center), the Occupant Behavior chapter discusses how to assess homeowner behavior patterns and use these patterns to enhance overall energy savings.

Part of a larger LBNL report (Deep Energy Retrofit Guidance for the Building America Solutions Center), the Over Time, Phased Guidance chapter presents a phased approach to deep energy retrofits.

Part of a larger LBNL report (Deep Energy Retrofit Guidance for the Building America Solutions Center), the Reducing costs and Increasing Cost-Effectiveness chapter provides suggestions for controlling deep retrofit costs, including both 'do's' and 'don'ts'.

Part of a larger LBNL report (Deep Energy Retrofit Guidance for the Building America Solutions Center), the Source Energy and Carbon Decisions chapter helps users carefully assess the impacts of switching from gas to electricity for heating end-uses, using source energy and/or carbon emissions...

Report presenting a parametric analysis using a numerical model of a new concept in desiccant and evaporative air conditioning.

Report examining the use of smart thermostat data to detect performance degradation and optimize comfort control in home AC systems.

Report outlining the issues with using existing ducts with a new low-load HVAC system, which reduces throw at supply registers causing decreased mixing of supply and room air, leading to potential thermal comfort complaints.

Report identifying two barriers that limit the ability of builders to explore opportunities for higher levels of energy efficiency in housing: the use of duct system materials that inherently achieve airtightness and are right-sized for low-load houses, and, the ability to air seal fire separation...

Research study analyzing the effects a nonlinear enthalpy profile has on thermal performance and expected energy benefits for PCM-enhanced insulation.

Document comparing simulation results from a modified version of the EnergyGauge program to include various HVAC runtime strategies.

Report investigating performance and energy savings potential of heat pump water heaters.