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Tools Listed Alphabetically

Tool	Applications	Free	Recently Updated
1 3 A B C D E F G H I J K L M N O P Q R S T U V W Z ¡
1D-HAM	heat, air, moisture transport, walls
3E Plus	insulation, insulation thickness
AAMASKY	skylights, daylighting, commercial buildings
ABACODE	Residential code compliance, IECC
ACOUSALLE	acoustics, codes and standards
Acoustics Program	HVAC acoustics, sound level prediction, noise level
ADELINE	daylighting, lighting, commercial buildings buildings
AFT Fathom	design, pump selection, pipe analysis, duct design, duct sizing, chilled water systems, hot water system
AFT Mercury	optimization, pipe optimization, pump selection, duct design, duct sizing, chilled water systems, hot water systems
AGI32	lighting, daylighting, rendering, roadway
AIRPAK	airflow modeling, contaminant transport, room air distribution, temperature and humidity distribution, thermal comfort, computational fluid dynamics (CFD)
AkWarm	home energy rating systems, home energy, residential modeling, weatherization
Analysis Platform	heating, cooling, and SWH equipment, commercial buildings
Animate	animated visualization of data, XY graphs, energy-use data
AnTherm	thermal bridges, heat flow, steady state, transfer coefficients, temperature distribution
Apache	thermal design, thernal analysis, energy simulation, dynamic simulation, system simulation
ApacheCalc	heat loss, heat gain, load calculation
ApacheHVAC	buildings, HVAC, simulation, energy performance
ApacheLoads	heat loss, heat gain, load calculations
ApacheSim	thermal simulation, energy consumption
Athena Model	life cycle assessment, environment, building materials, buildings
AUDIT	operating cost, bin data, residential, commercial
Awnshade	solar shading, awnings, overhangs, side fins, windows
BASECALC	foundations, basements, slab-on-grade, residential buildings
Be06	energy performance, building regulations, house, office, commercial and institutional
BEAVER	energy simulation, thermal analysis
BEES	environmental performance, green buildings, life cycle assessment, life cycle costing, sustainable development
BESTEST	exterior envelope simulation program capability tests
BE$T	electric motors, energy efficiency
BinMaker Pro	weather data, binned weather data, design weather data
BLCC	economic analysis, ESPCs, federal buildings, life-cycle costing
BSim2002	building simulation, energy, daylight, thermal analysis, indoor climate
BTU Analysis Plus	HVAC, heating, cooling, heat load studies
BTU Analysis REG	HVAC, heating, cooling, heat load studies
Building Design Advisor	design, daylighting, energy performance, prototypes, case studies, commercial buildings
Building Energy Analyzer	air-conditioning, heating, on-site power generation, heat recovery, CHP, BCHP.
Building Energy Modelling and Simulation: Self-Learning Modules	energy simulation, buildings, courseware, self-learning, modeling, simulation
Building Greenhouse Rating	operational energy, greenhouse performance, national benchmark
BUS++	energy performance, ventilation, air flow, indoor air quality, noise level
BV2	annual energy use, durational diagram
CAMEL	load estimation, psychrometrics, plant sizing
CATALOGUE	windows, fenestration, product information, thermal characteristics
CELLAR	cellar, heat loss, design rules
CHP Capacity Optimizer	CHP, cogeneration, capacity optimization, distributed generation
CHVAC	commercial hvac, load calculations, CLTD
CL4M Commercial Cooling and Heating Loads	cooling loads, heating loads, commercial buildings
CLIMATE 1	climate data, climatic maps, sun chart
Climate Consultant	climate analysis, psychrometric chart, bioclimatic chartm wind wheel
Climawin 2005	building thermal regulations
C-MAX	pumps, fans, chillers, compressors, energy conservation, facility design
Cold Room Calc	refrigeration load, heat gains, heat loads, cold room, cooler, freezer, refrigerated warehouse
COMcheck-EZ	energy code compliance, commercial buildings, codes training, energy savings
COMFIE	energy performance, design, retrofit, residential buildings, commercial buildings, passive solar
COMIS	multizone airflow, pollution transport
Commodity Server	energy database server, time series energy, portfolio management
CompuLyte	lighting, daylighting, rendering
Construction R-value Calculator	R-value, thermal bridging
CONTAM	airflow analysis; building controls; contaminant dispersal; indoor air quality, multizone analysis, smoke control, smoke management, ventilation
Cool Roof Calculator	reflective roof, roofing membrane, low-slope roof
Cool Room Calc	cooling load, heat gains, heat loads, air-conditioned room, air conditioner, HVAC, air conditioning
Co$tWorks98	HVAC systems, energy costs, energy economics, heating and cooling systems
CtrlSpecBuilder	HVAC controls, specifications, CSI Section 15900 HVAC Instrumentation and Controls
Dataplus-online	monitoring and targeting, energy management, self-billing
Daylight	daylighting, daylight factor
Daylight 1-2-3	climate-based daylighting metrics, integrated lighting/thermal simulations, lighting controls
DAYSIM	annual daylight simulations, electric lighting energy use, lighting controls
DD4M Air Duct Design	duct design, air-conditioning, heating
Degree Day Forecasts	degree days, historical weather, mean daily temperature
Degree Day Reports	degree days, historical weather, mean daily temperature
Demand Response Quick Assessment Tool	demand response, load estimation, EnergyPlus
DEROB-LTH	energy performance, heating, cooling, thermal comfort, design
DesiCalc	desiccant system, air-conditioning, system design, energy analysis, dehumidification, desiccant-based air treatment
Design Advisor	whole-building, energy, comfort, natural ventilation, double-skin facade
DesignBuilder	Building energy simulation, visualisation, CO2 emissions, solar shading, natural ventilation, daylighting, comfort studies, CFD, HVAC simulation, pre-design, early-stage design, building energy code compliance checking, OpenGL EnergyPlus interface, building stock modelling, hourly weather data, heating and cooling equipment sizing
D-Gen PRO	distributed power generation, on-site power generation, CHP, BCHP
Diag DPE	energy performance directive
DIALux	lighting design, daylight and artificial lighting, emergency lighting, road lighting
DIN V 18599	DIN V 18599, EPBD, energy performance of buildings directive
Discount	present value, discount factors, future values, life-cycle cost
DOE-2	energy performance, design, retrofit, research, residential and commercial buildings
DOLPHIN	duct sizing, duct and fitting pressure loss, fan pressure
DONKEY	duct sizing, equal friction, static regain, balanced pressure drop, duct acoustics, self generated noise, room sound pressure level
DPClima	thermal load calculation, equipment sizing
Duct Calculator	duct-sizing, design, engineering, calculation
DUCTSIZE	duct sizing, equal friction, static regain
EA-QUIP	building modeling, energy savings analysis, retrofit optimization (work scope development), investment analysis
EASY: Whole House Energy Audit	energy audit, residential buildings, retrofit, economic evaluation, DSM
e-Bench	energy benchmarking, environmental benchmarking, energy audit, invoice verification and reconciliation, performance contract verification
EBS	utility billing, energy management
ecasys	energy program management
EcoAdvisor	online interactive training, online multimedia training, sustainable commercial buildings, lighting, HVAC
ECO-BAT	environmental performance, life cycle assessment, sustainable development
Eco Lumen	lighting design, energy efficient
ECOTECT	environmental design, environmental analysis, conceptual design, validation; solar control, overshadowing, thermal design and analysis, heating and cooling loads, prevailing winds, natural and artificial lighting, life cycle assessment, life cycle costing, scheduling, geometric and statistical acoustic analysis
eDNA	energy data management, on-line data archive
EE4 CBIP	whole building performance, building incentives
EE4 CODE	standards and code compliance, whole building energy performance
EED	Earth energy, boreholes, ground heat storage, ground source heat pump system (GSHP)
EEM Suite	energy management, energy accounting, benchmarking, energy use analysis, energy forecasting
EffTrack	chiller efficiency, chiller performance
EMISS	atmospheric pollution, energy-related pollution emissions
EMODEL	data processing, graphing and regression modeling of energy-use data
EN4M Energy in Commercial Buildings	energy calculation, commercial buildings, bin method, economic analysis
EnerCAD	building energy efficiency, early design optimisation, architecture oriented, solar toolbox, SIA 380/1 compliance
Energy-10	conceptual design, residential buildings, small commercial buildings
EnergyAide	Energy audits, home energy analysis, retrofit
Energy Auditor	energy audit
Energy CAP Enterprise	energy information, energy accounting, energy tracking, utility bill management, energy management, utility bill accounting, benchmarking, degree days, M&V, energy measurement, FASER
Energy CAP Professional	energy information, energy accounting, energy tracking
Energy Estimator	Variable frequency drive, energy savings, fans, pumps
EnergyGauge USA	residential, energy calculations, code compliance
Energy Lens	energy management, half-hourly data analysis, business energy saving, monitoring and targeting
EnergyPlus	energy simulation, load calculation, building performance, simulation, energy performance, heat balance, mass balance
EnergyPro	California Title 24, compliance software, energy simulation, commercial, residential
Energy Profiler	load profiles, rate comparisons, data collection
Energy Profiler Online	online, energy usage, load profiles, bill estimation
Energy Profile Tool	benchmarking, energy efficiency screening, end-use energy analysis, building performance analysis, utility programs
Energy Scheming	design, residential buildings, commercial buildings, energy efficiency, load calculations
EnergyShape	energy load, end-use, energy profile
Energy Trainer for Energy Managers HVAC Module	training, HVAC, operation and maintenance, existing buildings
Energy Usage Forecasts	degree days, historical weather, mean daily temperature, load calculation, energy simulation
Energy WorkSite	energy benchmarking, facility checklist, utility bill manager
ENERPASS	energy performance, design, residential and small commercial buildings
ENER-WIN	energy performance, load calculation, energy simulation, commercial buildings, daylighting, life-cycle cost
ENFORMA	data acquisition, energy performance, building diagnostics, HVAC systems, lighting systems
Engineering Toolbox	Refrigerant line sizing, air properties, fluid properties, power factor correction, duct sizing
Envest	sustainable design, green buildings, life cycle analysis, environmental impact analysis
ENVSTD and LTGSTD	Federal commercial building standard, code compliance, energy savings
EPB-software	EPBD implementation, Flemish region, primary energy consumption
EQUER	life cycle assessment, design, retrofit, residential and commercial buildings, simulation
ERATES	electricity costs, electric utility rates schedules
e-Sankey	Sankey diagram, flow chart, energy efficiency, visualization
ESP-r	energy simulation, environmental performance, commercial buildings, residential buildings, visualisation, complex buildings and systems
EXTREMES	extreme weather, weather sequences, simulation, energy calculation
EZDOE	energy performance, design, retrofit, research, residential and commercial buildings
E-Z Heatloss	heat loss, heat gain, residential calculation
EZ Sim	energy accounting, utility bills, calibration, retrofit, simulation
FASER	energy information, resource accounting
FEDS	multibuilding facilities, energy simulation, retrofit opportunities, life cycle costing, emissions impacts, alternative financing
FENSIZE	fenestration, solar heat gain coefficient, thermal transmittance, visible transmittance, windows, skylights, code compliance
FenSpec	fenestration, product information, glazing, windows, doors, skylights, glazing manufacturers information
FENSTRUCT	structural performance, fenestration, deflection, stress, moment of inertia, centroids, AAMA
FindSolar	solar, photovoltaics, ppol, spa, calculations, economics
flixo	2D heat transfer, cold bridge, fenestration, thermal bridge
FLOVENT	airflow, heat transfer, simulation, HVAC, ventilation
FLUCS	illumination, daylighting
FlucsDL	daylight simulation
FlucsPro	luminaires, lighting design, lighting analysis, photometric data, radiosity
foAudits	Energy audit
FRAME4	fenestration, framing, heat transfer, building components, thermal characteristics
FRAMEplus	windows, fenestration, framing, building components, thermal characteristics, optical characteristics
FRESA	renewable energy, retrofit opportunities
FSEC 3.0	energy performance, research, advanced cooling and dehumidification
GaBi 4	environment, life cycle assessment, LCA, ecoprofiles, system analysis, design, research
Gas Cooling Guide PRO	gas cooling, hybrid HVAC systems
GenOpt	system optimization, parameter identification, nonlinear programming, optimization methods, HVAC systems
GIHMS	industrialized housing production operations
GLASTRUCT	structural performance, fenestration, deflection, stress, ASTM
Green Building Studio	CAD, energy performance, building information modeling, interoperability, DOE-2, EnergyPlus
GS2000	geothermal heat pump, heat exchanger sizing, ground source heat pump
HAMLab	Heat air and moisture, simulation laboratory, hygrothermal model, PDE model, ODE model, building and systems simulation, MatLab, SimuLink, FemLab, optimization
HAP	energy performance, load calculation, energy simulation, HVAC equipment sizing
HAP System Design Load	Cooling and heating load calculation, HVAC equipment sizing, zoning and air distribution
HBLC	heating and cooling loads, heat balance, energy performance, design, retrofit, residential and commercial buildings
HEAT2	heat transfer, 2D, dynamic, simulation
HEAT3	heat transfer, three-dimensional heat conduction, transient heat flow, steady-state heat flow
Heat Pump Design Model	heat pump, air conditioner, air-to-air heat pump, equipment simulation
HEED	whole building simulation, energy efficient design, climate responsive design, energy costs, indoor air temperature
HiLight	lighting, energy code, code compliance
Home Energy Saver	internet-based energy simulation, residential buildings
HOMER	remote power, distributed generation, optimization, off-grid, grid-connected, stand-alone
HOT2000	energy performance, design, residential buildings, energy simulation, passive solar
HOT2 XP	energy performance, design, residential buildings, energy simulation, passive solar
HPSIM	heat pump, research
HVAC 1 Toolkit	energy calculations, HVAC component algorithms, energy simulation, performance prediction
HVACSIM+	HVAC equipment, systems, controls, EMCS, complex systems
HVAC Solution	boilers, chillers, heat exchangers, cooling towers, pumps, fans, expansion tanks, heat pumps, fan coils, terminal boxes, louvers, hoods, radiant panels, coils, dampers, filters, piping, valves, ductwork, schedules
Hydronics Design Studio	hydronic heating, radiant heating, simulation, design, piping
IAQ-Tools	indoor air quality, 'sick' buildings, ventilation design, contaminant source control design, tracer gas calculations
I-BEAM	indoor air quality, IAQ education, IAQ management, energy and IAQ
IDA Indoor Climate and Energy	design, energy performance, thermal comfort, indoor air quality, commercial buildings
IDEAL	electric utility analysis, electricity costs, bill analysis
Indoor Humidity Tools	indoor air humidity, dryness, condensation
INDUS	ductwork sizing, ductwork design, HVAC
InterLane Power Manager	energy metering, monitoring, power management
ION Enterprise	energy management, power quality, power reliability, cost allocation
IPSE	solar architecture, passive solar, residential buildings, primer, introduction, educational, reference
ISE	thermal model, building zone simulation, MatLab/SimuLink
ISOVER Energi	energy performance, heat loss, U-value, profitability, Danish building regulations
IWEC	international weather, weather data, climate data, energy calculations
IWRAPS	water planning, water management, water use forecasting, water conservation, water rights, military installations
IWR-MAIN	water demand analysis, municipal and industrial water demand, water conservation, water resource planning
J-Works	load calculation, commercial buildings, residential buildings
KCL-ECO	life cycle, inventory, assessment, LCA
LESO-COMFORT	thermal comfort, load calculation, energy
LESOCOOL	airflow, passive cooling, energy simulation, mechanical ventilation
LESODIAL	Daylighting, early design stage, user-friendliness
LESOKAI	thermal tranmission, water vapor, building envelope
LESOSAI	heating energy, energy simulation, load calculation, standards
LESO-SHADE	shading factors, solar shading, building geometry
LifeCycle	life-cycle cost, economics
LightPro	luminaires, lighting analysis, photometric data
LISA	life cycle analysis, sustainability, utilisation, embodied energy
Load Express	Design, light commercial buildings, heating and cooling loads, HVAC
Look3D	three-dimensional, full-color surface plots from columnar data, energy-use data
LoopDA	airflow analysis, indoor air quality, multizone analysis, natural ventilation
Macromodel for Assessing Residential Concentrations of Combustion Generated Pollutants	indoor air quality, research
MarketManager	building energy modeling, design, retrofit
METEONORM 6	weather data, solar radiation, temperature, typical years, climate analysis
METRIX4	monitoring and verification, utility bill analysis, utility accounting
MHEA	retrofit opportunities, audit, mobile homes
Microflo	CFD, airflow, air quality, thermal performance
Micropas6	energy simulation, heating and cooling loads, residential buildings, code compliance, hourly
ModEn	object-oriented simulation, energy simulation, controls, energy audit, energy-saving, energy performance, dynamic simulation, research, education, heating, air conditioning
MOIST	combined heat and moisture transfer, envelope
MotorMaster+	motors, energy efficient motors, motor database, motor management, industrial efficiency
myupgrades.com	HVAC updates, HVAC equipment selection, energy savings, up-sell
National Energy Audit (NEAT)	retrofit, energy, audit, efficiency measures
NewQUICK	Passive simulation, load calculations, natural ventilation, evaporative cooling, energy analysis.
OHVAP	venting design, oil-fired equipment
Opaque	wall thermal transmission, U-value
OptoMizer	lighting audit, lighting retrofit, lighting efficiency
Overhang Annual Analysis	window, overhang, shading, solar
Overhang Design	solar, window, overhang, shading
ParaSol	solar protection, solar shading, windows, buildings, solar energy transmittance, solar heat gain coefficient, energy demand, heating, cooling, comfort, daylight
PASSPORT	heating requirements, passive solar, residential buildings, standards
PEAR	design, retrofit, residential buildings
Pervidi	, building systems, performance, preventative maintenance, analysis, residential and commercial buildings
PHOENICS	computational fluid dynamics, air pollution, smoke and fire, air flow
Physibel	heat transfer, mass transfer, radiation, convection, steady-state, transient, 2-D, 3-D
Pipe Designer	fluid systems, piping design, existing systems
Pipe-Flo	piping analysis, pump selection, piping design, hydraulic analysis, pump sizing, pressure drop calculator, hydraulic modeling, steam distribution, chilled water, sprinkler system
Pisces	pipework, heating, cooling
PocketControls	PDA, controls, front end, handheld
PRISM	utility billing data, demand-side management, statistical energy savings
Prophet Load Profiler	energy analysis, load profiling, cost comparison, energy budgeting, rate analysis, data collection, real-time monitoring, load shedding
PsyCalc	psychrometric, temperature, moisture content, atmospheric pressure
Psychrometric Analysis	psychrometric analysis, HVAC
PVcad	photovoltaic, facade, yield, electrical
PV-DesignPro	photovolatiac design, tracking systems, solar, electrical design
*PVSOL**	photovoltaic systems simulation, planning and design software, grid connected systems, stand-alone systems
PVSYST	PV system sizing, PV system simulation, grid-connected PV systems, stand-alone PV systems, shading, solar tools
PYTHON	pipe sizing, pump sizing, control valve selection
Quick BLCC	multiple project LCC analysis, simplified LCC analysis
Quick Calc	lighting design, 3d drawing, indoor lighting
Quick Est	lighting, 3d drawing, indoor lighting
Radiance	lighting, daylighting, rendering
Radiance Control Panel	radiance, lighting, daylighting, ray tracing, glare
Radiance Interface	Lighting, daylighting, ray tracing, glare
RadOnCol	solar radiation, solar collector
RadTherm	convection, conduction, radiation, weather, solar, transient
REEP	energy- and water-efficiency strategies, economic analysis, pollution abatement, DOD installations
Rehab Advisor	high performance housing, single family, multifamily, housing renovation, energy efficiency
REM/Design	energy simulation, residential buildings, code compliance, design, weatherization, equipment sizing, EPA Energy Star Home analysis
REM/Rate	home energy rating systems, residential buildings, energy simulation, code compliance, design, weatherization, EPA Energy Star Home analysis, equipment sizing
REScheck	energy code compliance, residential buildings, codes training, energy savings
RESEM	retrofit, institutional buildings
RESFEN	fenestration, energy performance
RHVAC	residential HVAC, residential load calculations, ACCA, Manual J
Right-Suite Residential for Windows	residential loads calculations, duct sizing, energy analysis, HVAC equipment selection, system design
RIUSKA	Energy calculation, heat loss calculation, system comparison, dimensioning, 3D-modelling
RL5M	residential, cooling, heating, energy, economic analysis.
Room Air Conditioner Cost Estimator	air conditioner, life-cycle cost, energy performance, residential buildings, energy savings
SBEM	energy consumption/performance, carbon dioxide emissions, UK building regulations, compliance checking, non-residential buildings
SenseDat Analyzer	energy monitoring, building energy analysis, energy education
ShadowFX	shading calculations, sun modelling, solar shading
SIMBAD Building and HVAC Toolbox	transient simulation, control, integrated control, control performance, graphical simulation environment, modular, system analysis, HVAC
SIP Scheming	stressed skin insulating core panels
SkyVision	Skylight, light well, fenestration, glazing, optical characteristics, daylighting.
SLAB	slab on the ground, heat loss, design rules
SMILE	object-oriented simulation environment, building and plant simulation, complex energy systems, time continuous hybrid systems
SMOC-ERS	energy efficiency program, auditing, reporting
SMOG	energy calculation, heat loss calculation, system comparison, dimensioning, 3D-modelling
solacalc	passive solar, house design, building design, building services, design tools
SOLAR-2	windows, shading fins, overhangs, daylight
SOLAR-5	design, residential and small commercial buildings
SolArch	thermal performance calculation, solar architecture, residential buildings, design checklists
SolarPro 2.0	solar water heating, thermal processes, alternative energy, simulation
SolarShoeBox	Direct gain, passive solar
Solar Tool	overhang sizing and position, shading devices, louvers,
SolDesigner	design, solar thermal, solar hot water, solar heating plants, solar design
Sol Path	solar, sun, sun path
Sombrero 3.01	Solar shading, solar radiation, building geometry, solar systems
SPACER	fenestration, spacer, THERM, thermal modeling, IGU, sealants
SPARK	object-oriented, research, complex systems, energy performance, short time-step dynamics
SPOT	daylighting, electric lighting, photosensor, energy savings
Star Perfomer	energy performance diagnostic, energy audit, office building
STE	thermal regulations, residential and commercial buildings, energy certification
SunAngle	Solar, sun, angle
SunAngle Professional Suite	sun angle, solar calculator
Suncast	solar shading, insolation
SUN_CHART Solar Design Software	sunchart, solar position, sun path, shading
SUNDAY	energy performance, residential and small commercial buildings
SUNDI	solar shading, solar irradiance, solar patterns
SunPath	solar geometry, sun position
SunPosition	solar angle design, solar altitude, solar design
SunPosition online	sun position, solar angle design, solar azimuth, solar altitude, sun path
SUNREL	design, retrofit, research, residential buildings, small office buildings, energy simulation, passive solar
Sunspec	solar radiation, illuminance, irradiance, luminous efficacies, solar position
SuperLite	daylighting, lighting, residential and commercial buildings
System Analyzer	Energy analyses, load calculation, comparison of system and equipment alternatives
TAPS	pipe sizing
Tariff Analysis Project	bill calculator, utility bills, tariff, schedules, rates, rate schedules, utility rates, utility tariffs, cost savings, energy savings analysis, investment analysis
TAS	Building dynamic thermal simulation, building simulation , comfort, CFD, thermal analysis, energy simulation
Tetti FV	photovoltaic, PV, energy performance, design, PV system sizing, PV system simulation, grid-connected PV systems
Therm	two-D heat transfer, building products, fenestration
Thermal Comfort	thermal comfort calculation, comfort prediction, indoor environment
ThermoSim	dynamic heat transfer, wall systems, simulation algorithms, interactive simulation, Java
Toolkit for Building Load Calculations	building loads, energy calculations, heat balance model, heat transfer
TownScope II	solar energy, urban design, visual reasoning
TRACE 700	Energy performance, load calculation, HVAC equipment sizing, energy simulation, commercial buildings
TRACE Load 700	Heating and cooling load calculation, air distribution simulation, HVAC equipment sizing, commercial buildings
TREAT	weatherization auditing software, Home Performance with Energy Star auditing tool, retrofit, single family, multifamily residential, mobile homes, HERS ratings, load sizing.
TRNSYS	energy simulation, load calculation, building performance, simulation, research, energy performance, renewable energy, emerging technology
tsbi3	energy performance, design, retrofit, research, residential and commercial buildings, indoor climate
*TSOL**	solar thermal heating, swimming pool heating, solar planning and design
Umberto	material and energy flow analysis, process optimization, environmental impact assessment, material flow cost accounting, life cycle assessment (LCA), life cycle costing (LCC)
UMIDUS	moisture calculation, latent and sensible conduction loads, heat and mass transfer through building envelopes
UM Profiler	utility metering, utility accounting
Varitrane Duct Designer	duct sizing, static regain, equal friction, fitting loss
VentAir 62	ventilation design, ASHRAE Standard 62
VIP+	energy performance, code compliance, design, research, residential and commercial buildings, costs, environmental sustainable
VIPWEB	energy performance, code compliance, design, research, residential and commercial buildings, costs, environmental sustainable
VISION4	fenestration, solar optical characteristics, thermal performance, windows, glazing
Visual	lighting, lighting design, roadway lighting, visual, lumen method
VisualDOE	energy, energy efficiency, energy performance, energy simulation, design, retrofit, research, residential and commercial buildings, simulation, HVAC, DOE-2
Visualize-IT Energy Information and Analysis Tool	energy analysis, rate comparison, load profiles, interval data
Visual TTH	thermal regulation, compliance, EN 12831, RT 2000, RT 2005
WaterAide	water audits, water analysis, water end-sue allocation, retrofits, domestic hot water
WATERGY	water conservation opportunities, energy savings
Weather Data Viewer	weather, climate, extreme weather, design data, design temperature, humidity, dew point, dry bulb, wet bulb, temperature, enthalpy, wind speed
Weather Tool	weather data visualization, psychrometry, passive design analysis, optimum orientiation, data synthesis
Weather Year for Energy Calculations 2	weather data, energy calculations, simulation data
Window	fenestration, thermal performance, solar optical characteristics, windows, glazing
Window Heat Gain	Solar, window, energy
WISE	hygrothermal model, building simulation, MatLab/SimuLink Tool
WUFI-ORNL/IBP	moisture modeling, hygrothermal model, combined heat and moisture transport, building envelope performance
ZIP	economic insulation level, residential buildings
¡Get Psyched!	psychrometric chart, moisture, humidity, dry bulb temperature, wet bulb temperature

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U.S. Department of Energy