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Home Energy Saver & Score: Engineering Documentation
Welcome
Accuracy
FSEC high-fidelity sub-metered residential energy data used for model validation
Home Energy Scoring Tool accuracy
Oregon EPS Study
Validation Reference House Decision Rules
Appendices
Appendix A - Default House Characteristics
Characteristics Based on Climate Zone
National Default Characteristics
Appendix B - Default Energy Consumption
Appendix C - Local Climate Parameters
Appendix D - Normalized Hourly Factors
Appendix E - HVAC Modeling
Calculation Methodology
Bill Calculation
Bill Calculation Scoring Tool
Calculation of Energy Consumption
Appliances
Appliance Efficiencies
Clothes Dryer Energy Consumption
Drying Energy
Machine Energy
User Inputs to the Clothes Dryer Model
Clothes Washer Energy Consumption
Calculating Machine Energy
Calculating Water Heating Energy
User Inputs to the Clothes Washer Model
Dishwasher Energy Consumption
Machine Energy
User Inputs to the Dishwasher Models
Water Heating Energy
Freezer Energy Consumption
User Inputs to the Freezer Model
Miscellaneous Equipment Energy Consumption
Default Energy Consumption of MELs
Well-pump energy calculation method
Oven Energy Consumption
Refrigerator Energy Consumption
Refrigerator annual efficiency - Legacy system
User Inputs to the Refrigerator Model
Stove Energy Consumption
Heating and Cooling Calculation
Building Envelope, Shape and Dimensions
Ceiling Construction Types
Floor Construction Types
Roof Construction Types
Wall Construction Types
Window & Skylight Construction Types
Combined Boilers
DOE2-inputs, assumptions, and calculations
DOE-2 Post-processing
DOE2 Inputs
Internal DOE2 Calculations
The Doe2 Model
Heating and Cooling Equipment
Heating and Cooling Equipment
Heating and Cooling Equipment Efficiencies
Room Air Conditioner Consumption
Infiltration
Infiltration
Infiltration - Legacy system
Internal Gains
Thermal Distribution Efficiency
Thermal Distribution Efficiency
Thermal Distribution Efficiency - Legacy System
Thermostats and Thermostat Schedules
Thermostat Schedules Scoring Tool
Thermostats and Thermostat Schedules Legacy
Weather Modeling
TMY3 Weather Locations
Weather Modeling - Legacy System
Legacy
Heating and Cooling Calculation
Building Envelope, Shape and Dimensions
Heating and Cooling Equipment
Heating and Cooling Equipment Efficiencies - Legacy System
Heating and Cooling Equipment Legacy System
Window & Skylight Construction Types - Legacy System
Lighting Energy Consumption
User Inputs to the Lighting Model
Water Heater Energy Consumption
Ambient Air Temperature
Annual Water Heater Energy Use
Daily Hot Water Use
Daily Hot Water Use - Legacy system
Daily Hot Water Use - Scoring Tool
Daily Water Heater Energy Use
Standby Heat Loss Coefficient
User Inputs for Water Heater Analysis
User Inputs to the Water Heater Model
Water Heater Energy Factor
Data & Analysis Sources
Data Dictionary and Object Model
Data Dictionary
Object Model
References
Upgrades
Upgrade Costs
Upgrades Logic
User Reports
Carbon Emissions
Carbon Emissions Scoring Tool
Carbon Footprint Map
Summary by End Use
Home Energy Saver
Defaults
HES Pro/Consumer API
About APIs
Home Energy Saver Release History
HES Release History Old
Known Issues & Release Notes
User Interface
Entry Page
Error Handling
Inputs Page
Reports
Results Page
Multi-Family
Calculation Methodology
DOE2 inputs
Domestic Hot Water Energy Calculation Multifamily Buildings
DHW detailed calculations
Defaults
HES Multi-Family Release History
Multifamily Release History Archive
Known Issues & Release Notes
Multi Family API
calculate
User Interface
Page Archive
API Archive
HES Pro/Consumer API (archived)
About APIs
HES Pro API v2.0
1. Create Building Method
2. Submit Inputs Method
3. Calculate Method
API Object Model - Single Family
Building
Envelope
Glazing Construction
Occupancy
Opaque Construction
Schedule
Systems
About
Appliance Unit
Attic
Bill
Building Location
Cooling
DHW
Distribution
Economics
Equipment
Foundation
Geometry
Heating
Layer
Lighting
Meter
Occupancy
Schedule Week
Shade
Thermostat
Wall
Appliance Property
Appliance Use
Cooling equipment
Door
Heating Equipment
Lighting Fixture
Pool
PV
Schedule Day
Skylight
Spa
Water Heater
Well
Window
Cooling property
Heating Property
Schedule Value
Water distribution
Water Heater Property
Water use
Multi Family API (archived)
1. Submit Method
API Object Model - Multi-family
Building
Building Configuration
Glazing Construction
Opaque Construction
Pump
Schedule
Domestic Hot Water
Opaque Construction Layer
Schedule Week
Space
Appliance
DHW Water Heater
Lighting
Schedule Day
Space Occupancy
Water Fixture
Zone
Appliance Unit
DHW Distribution
DHW Property
HVAC
Lighting Fixture
Schedule Value
Zone Floor
Zone Roof
Zone Wall
Appliance Property
DHW Pipe
HVAC Control
HVAC Distribution
HVAC Equipment
Zone Door
Zone Window
HVAC Property
Zone Attached Shade
2. Calculate Method
3: Retrofit Method
4. Retrieve Method
5. Nearest Weather Method
Scoring Tool API (archived)
Retrieve Inputs
Scoring Tool API-GUI Field Mapping
Submit Inputs Method
Calculation Methodology
Calculation of Energy Consumption
Default House Characteristics
Default Method
Defaults
Average Energy Bills for Existing Houses
Bill Savings in Typical Houses due to Energy Efficiency Upgrades
Carbon Emissions in Typical Houses
Bill Savings: Details
House Configuration & Operations
Doe2 inputs
HES Pro/Con API
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temp
test crumbs
Tariff Method
Bill Allocation to Specific End-Uses
Input Values to TAP Utility Tariff Web Service
Load Processing Algorithms
Annual Energy Consumption by End-Use
Heating and Cooling Hourly Loads
Load Aggregator
Non-HVAC hourly loads
TOU Mask
Utility tariff data
TAP Web Service
Bill Calculation Methods
OnTAP SOAP Server Interface Description
Tariff Description Methods
Tariff Listing Methods
Utility Listing Methods
Tariff Analysis Project Database
User Interface for Tariff Module
Presentation of Results
Tariff Selection
Release Histories
The Home Energy Scoring Tool
Defaults
Dependencies on Occupancy and House Size
Interpreting the Label
Known Issues & Release Notes
Known Issues Scoring Tool - V2014 Beta
Scoring Methodology
Scoring Tool API
Scoring Tool Release History
HEScore Release History 6-15-12
Scoring Tool Release History Old
Scoring Tool workarounds
User Interface
What's New
Home Energy Saver & Score: Engineering Documentation
Object Model
The chart below provides a visual representation of the HES API object model.
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