Library

Report describing the performance, economics, space heating impacts, and user satisfaction of heat pump water heaters (HPWHs) in the upper Midwest, based on a field study and survey of participants in the MECA HPWH incentive program.

Factsheet describing techniques for installing ductless heat pumps in cold climate locations.

Report describing the objective evaluation of space conditioning interactions between heat pump water heaters and home heating systems during winter 2016-2017, revealing a smaller than anticipated impact on space conditioning loads.

Video course by the Lighting Controls Association presenting an overview of the basic functionality of today’s lighting controls, benefits and the basic questions to ask when identifying an appropriate lighting control strategy

Article discussing the downside to recessed can lights.

Report on performance of current diagnostics as well as a draft test method for use in future air flow evaluations.

Guidance on performance of current diagnostics as well as a draft test method for use in future air flow evaluations.

Report presenting lab evaluation of five heat pump water heaters available in the US market today.

Report proposing mini-split heat pumps as a new retrofit option to replace resistance heating in the Pacific Northwest.

Report describing research conducted to support California’s Title 24, Part 6 Building Energy Efficiency Standards by analyzing the impact of installation location and ventilation on heat pump water heater (HPWH) performance, emphasizing the need for proper installation to maximize efficiency...

A website explaining the measurement of light bulbs, measurable in lumens, & brightness levels that ENERGY STAR products produce.

A website explaining the basics of LED lightning, their lifespan, their use in general lighting applications, the amount of heat produced, and why you should choose ENERGY STAR certified LED products for your home.

Information about LED lighting technology.

A fact sheet providing information on ENERGY STAR certified LED bulbs & how to find the right one to fit your lighting fixture.

Webpage describing a lightbulb exchange program in Fairfax county, VA.

The light-emitting diode (LED) is one of today's most energy-efficient and rapidly-developing lighting technologies.

ENERGY STAR lightbulb criteria.

A website explaining why homeowners should install ENERGY STAR certified lightbulbs, which helps to save homeowners on utility bills and protect the environment.

American Lighting Association website homepage.

Webpage describing high-efficiency lighting choices for homeowners including LEDs, CFLs, and halogen bulbs.

A website exploring the use of lighting controls products like dimmers, motion sensors and timers to save energy in the home.

Presentation detailing key challenges with lighting controls, best practices for the design and implementation of lighting controls, and best approaches for return on controls.

Link for the webpage of the Lighting Controls Association, an industry organization dedicated to supporting adoption of advanced lighting controls in commercial buildings through education. Their webpage contains a variety of resources regarding advanced lighting controls.

Webpage for the Lighting Design Lab (LDL), an organization which provides educational resources regarding advanced lighting controls and other electric building technologies.

A website explaining basic lighting principles and terms & how they are applied to the home.

Web article describing two options for sizing ductless minisplit heat pumps, including a free HVAC sizing tool.

Report on the long-term performance of mini-split heat pumps.

Report identifying the target market for solar water heaters and potential pathways and cost/performance targets that must be met for these systems to realize large energy savings.

A website explaining lumens & how to compare the amount of light that lightbulbs can produce when shopping for replacements.

Document with evaluation of 14 heat pump water heaters (including three recently released HPWH products) installed in existing homes in the northeast region of the United States.

Research study outlining results of monitoring a low temperature heat pump.

This report investigates whether mini-split heat pumps can live up to their potential for one market segment: multifamily retrofits.

Study in which a central heat pump water heater system was monitored in detail and used to create a model for assessing similar systems in various climates.

Database compiling extended capacity data for numerous cold climate heat pump manufacturers and models.

Document on the development of two simple in-home efficiency test methods that can be used by technicians, researchers, or interested homeowners to verify the correct operation and energy efficiency of a homes air conditioning and heating equipment.

Report describing the key findings from the first third-party field validation of 120-volt heat pump water heater (HPWH) technology, addressing the significant barriers to their adoption and emphasizing their potential role in reducing carbon emissions from residential water heating.

Report describing a laboratory assessment on the performance of Rheem 120-volt heat pump water heaters (HPWH), aimed at identifying optimal installation locations for these new "plug-in" models based on comprehensive testing under various conditions.

Information about recycling CFL lightbulbs.

A website explaining the benefits of recycling compact fluorescent lightbulbs and how the process can prevent the release of mercury into the environment.

Fact sheet describing best practices in installing leak-free refrigerant systems, including specifics on creating flare joints and brazed joints, pressure testing, vacuum testing, and charging the system with refrigerant.

Report describing information from DOE about rules and standards for residential air conditioners and heat pumps.

Webpage describing a DOE Cold Climate Heat Pump Challenge. The challenge engages industry partners and focuses around the Cold Climate Heat Pumps, a more environmental and efficient heating alternative to traditional heating.

Paper covering a parametric study of foundation heat exchanger-based ground source heat pump systems for several house configurations in a range of European locations, with an emphasis on determining feasible combinations.

Report discussing instrumentation methods and field operation characteristics of two GSHPs in test houses, including a comparison between the manufacturers listed COP values and the COPs calculated from field data.

This project analyzed combined condensing water heaters or boilers and hydronic air coils to provide high efficiency domestic hot water (DHW) and forced air space heating. Called "combi" systems, they provided similar space and water heating performance less expensively than installing two...

Article explaining the energy cost reduction and other benefits associated with installing a heat pump clothes dryer

Document serving as a resource to assist decision-makers in understanding how networked lighting control system attributes can satisfy project objectives at an appropriate cost and functionality

Technical study exploring the impact of different installation faults on heat pump performance in a single-family house.

Information sheet describing how to select a properly sized water heater based on household usage patterns, peak demand, and heater type—whether tankless, solar, or storage-based—to ensure efficiency and adequate hot water supply.

Webpage describing the STEP campaign encouraging the use of smart diagnostic tools to reduce installation faults.