NC State Extension

Glossary of Home Energy Terms

  Last Updated 4/9/14

– To assist residents in understanding home energy, how to assess a home’s energy issues, and how to conduct energy saving projects.

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Terms:  A   B C   D -E   F – J  K – O   P – R    S – Z

Air Barrier 

Air Duct

Air Leak

Air Leakage

Air Sealing

Air Sealing Products

Aluminum and/or Butyl Tape

Attic Decking

Attic hatch

Attic Safety

American Recovery and Reinvestment Act of 2009

Audit (EnergyAudit)

Auditor (Energy Auditor)

Band Joist (and sill plate)

Behavior-Based Programs

Blower Door

Blown insulation

BTU – British Thermal Unit

Building Enclosure

Building Envelope -See Building Enclosure.

Building Performance Institute (BPI)

Butyl and/or Aluminum Tape

Can (Recessed ) Light

Cantilever

Caulk

CCF

Central Air Conditioner

CFL

CFM

Closed Cell Spray Polyurethane Foam
Compact Fluorescent Light

Compression Band / Drawbands

Conditioned Space

Conduction

Convection

Continuous Air Barrier

Cooling Degree Day – See Degree Day

Cooperative Electric Utility

Crawlspace

Cumulative Savings

Current

Degree Day

Demand Charge

Demand Reduction

Demand Side Management (DSM)

Double-pane Window – See Insulated Glazing

Drawbands / Compression Band

Dryer Vent

Duct / Ductwork 

Duct Blaster

Efficiency

Energy

Energy Audit (Professional)

Energy Auditor (or Energy Rater)

Energy Conservation

Energy Efficiency Measures (ECMs)

Energy Efficiency Potential

Energy Efficiency Resource Standard

Electric Grid

Electric Potential Difference – See Voltage.

Energy Efficiency Measure (EEM)

Energy Efficiency Ratio (EER)

Energy Star

Energy Tax Credits

Envelope (Building Envelope) – See Building Enclosure.

Enviroscaping

Expanding/Spray Foam

Federal Energy Regulation Commission (FERC)

Flexible Duct

Foam Board Insulation

Furnace

Gable Vent

Great Stuff© expanding foam

Green Building

Greenhouse Gas

Greywater

Grid

Heat Pump

Heating, Ventilation, and Air Conditioning system (HVAC)

HCFCs

Heating Degree Day – See Degree Day

Heating Seasonal Performance Factor (HSPF)

HERS (Home Energy Rating System)

Home Energy Rating System – See HERS

Hose Bib

“House as a System”

HVAC

Indoor Air Quality

Infiltration (also called air leakage)

Incentives – see Energy Tax Credits

Insulated Glazing

Insulation

Joist

Kneewall

Kilowatt (kW)

Kilowatt hour (kWh

kW (kilowatt)

KWh (Kilowatt hour)

LED (Light-Emitting Diode)

Load

Load management See also Demand Reduction

Low E glass

Low flow showerheads

Low flush toilet

Lumen

Lumens/Watt (lpw)

Mastic

Mechanical Ventilation

Megawatt (MW)

Multimeter

Natural Ventilation

Non-utility supplier

Peak demand

Plumbing PipesInsulating plumbing pipes

Power

Power Factor

Programmable Thermostat

Radiant Barrier

Rafter Vent

Recessed “Can” Light

Renewable Energy Certificates (RECs)

Renewable Portfolio Standard (RPS)

Resistance

RESNET

Retrofit

Retrofit Measure

Ridge Vent

Rural Electric Cooperative

R-Value

Sealant 

Seasonal Energy Efficiency Ratio – See SEER

SEER – (Seasonal Energy Efficiency Ratio)

Sill Plate

Smart Meter

Soffit

Soffit Vent

Spray Foams

Stack Effect

Tax Credits – see Energy Tax Credits

Therm

Thermal Envelope

Time of Use Rates

Total Annual Savings

U-Factor

Vapor Barrier

Vapor Diffusion Retarders

Ventilation

Voltage

Watt (W)

Weatherization

Sources:

Written By

Photo of Laura LanghamLaura LanghamEnergy Conservation Program Manager (919) 515-8474 laura_langham@ncsu.eduAgricultural and Human Sciences - NC State University
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