Energy Star Prototype

  • Description: The William Ryan Energy Star prototype specifications include:  Energy Star windows, appliances, bath fans and lights; properly sized and efficient HVAC equipment; a tight envelope and "air-tight" ducts; a programmable thermostat with energy efficient recovery; and additional wall insulation.  Envelope and duct leakage meet the Energy Star requirements of less than 7 air changes per hour at 50 Pa and less than 4 CFM duct leakage to the outdoors per 100 ft2 of finished floor area.    The upgraded envelope and an efficient heat pump will reduce the heating energy use by a projected 57% over the Benchmark home.  The upgraded windows and high-efficiency cooling system will lower cooling energy by approximately 66%.  The high-efficiency electric water heater and Energy Star dishwasher installed will reduce domestic hot water energy use by 16%.

Weather Info:

  • Location: Tampa, FL
  • Elevation: 10.0
  • Fact: 0.75
  • End Type: Yes
  • Regional Office: Atlanta
  • Submitted: No
  • Approved: Yes
  • Modified: 2010-01-17
  • Stage: Completed
  • Visit: No

Specification 4193

  • Percent Energy Savings: 7
  • Submitted: No
  • Approved: Yes
  • Modified: 2008-05-05 00:00:00
  • Floor Plan: Unknown
  • Roof Radiant: No
  • Wall Radiant: No
  • Space Heating Capacity: 0.0

Specification 4194

  • Percent Energy Savings: 35
  • Submitted: No
  • Approved: No
  • Editor: Srikanth Puttagunta
  • Modified: 2010-01-19 00:00:00
  • Floor Plan: Del Mar
  • Style: Single-family detached, site built
  • House Type: Prototype/Research House (G2)
  • Number of Stories: 1.0
  • Number of Bedrooms: 3
  • Floor Area: 2145.0
  • Basement Area: 0.0
  • Conditioned Volume: 19854.0
  • Surface Area: 3962.0
  • Roof Framing: Vented attic - truss framing
  • Roof Insulation: Sprayed cellulose
  • Roof R Value: 30.0
  • Roof Radiant: Yes
  • Wall Framing: Concrete masonry
  • Wall Insulation: None
  • Wall R Value: 0.00999999977648
  • Wall Sheathing: Polysocyanurate
  • Wall Sheathing R Value: 6.5
  • Wall Radiant: No
  • Foundation Type: Slab on grade
  • Foundation Insulation: None
  • Foundation R Value: 0.00999999977648
  • Window Glazing: Double pane - low-e
  • Window Framing: Aluminum with thermal break
  • Window U Value: 0.550000011921
  • Window SHGC: 0.34999999404
  • Window Glazing Area: 252.0
  • Space Heating Type: Air Source Heat Pump
  • Space Heating Combustion: N/A
  • Space Heating Capacity: 26.0
  • Space Heating Efficiency: 8.0
  • Space Heating Efficiency Type: HSPF
  • Space Heating Location: N/A
  • Space Heating Energy Proto: 6.0
  • Space Heating Energy: 14.0
  • Space Heating Fuel: Electric
  • Lighting Energy: 28.0
  • Lighting Energy Proto: 29.0
  • Light Appliance: 62.0
  • Light Appliance Proto: 63.0
  • Cooling Type: Air Source Heat Pump
  • Cooling Capacity: 2.5
  • Cooling SEER: 14.0
  • Cooling Fuel: Electric
  • Cooling Energy Proto: 42.0
  • Cooling Energy: 121.0
  • Duct Type: Sheet metal / Flex
  • Duct Location: In unconditioned space
  • Duct R Value: 6.0
  • Air Distribution Location: Garage
  • Vent Type: Other
  • Hot Water Type: Electric resistance
  • Hot Water Combustion: Not Applicable
  • Hot Water Location: Garage
  • Hot Water Capacity: 50.0
  • Hot Water Efficiency: 0.949999988079
  • Hot Water Energy Proto: 27.0
  • Hot Water Energy: 32.0
  • Hot Water Fuel: Electric
  • Energy Star Rating: Yes
  • HERS Rating 2006: 82.0
  • Modeler's Name: Gayathri Vijayakumar
  • Benchmark Version: 12/29/2004
  • Total Energy Use: 257.0
  • Total Energy Use Proto: 167.0
  • Percent Energy Savings: 35.0
  • Total Energy Savings: 35.0

Data and Resources

Additional Info

Field Value
Author Srikanth Puttagunta
Maintainer Srikanth Puttagunta
Last Updated September 16, 2016, 22:08 (Etc/UTC)
Created September 16, 2016, 22:08 (Etc/UTC)
Construction Type New Construction
Evaluation Level Test House
Climate Hot - Humid
City Tampa
State FL
Zip Code 99999
Phase Before 2010
Project Start Date 2006-02-01
Project Estimated End Date 2006-12-31
Project Actual End Date 2006-12-31
Completed House Count 1
Expected House Count 1
Energy Savings Percentage 21
Average Estimated Annual Source Energy (MMBtu) 1
Average Conditioned Floor Area (sqft) 1

Dataset extent

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