"The DOE Zero Energy Ready Home is the pathway to decarbonization."


Key Features

  • Walls: 2x6, 24" o.c., panelized, R-24 total: advanced framed. Cavity insulation is either flash and batt 1" open-cell spray foam + R-19 unfaced fiberglass or sprayed-in cellulose. R-3.5 coated OSB sheathing; fiber cement lap siding.
  • Roof: Truss gable roof: plywood sheathing, self-adhered underlayment, 30-year architectural shingles, ridge vent, storage "cradle" built into trusses.
  • Attic: Vented, 14" R-49 blown-in cellulose.
  • Foundation: Unvented crawl space: poured concrete and CMU walls, R-10 EPS on interior, termite inspection strip. Exterior foundation drain. 8-mil poly vapor barrier.
  • Windows: Double-pane, argon-filled, low-e2, vinyl frame, U=0.28, SHGC=0.22.
  • Air Sealing: 0.67 ACH50. Open-cell foam in rim bands, over top plates, over garage, in cantilevers. Sill gaskets.
  • Ventilation: ERV to air handler, MERV 8 or 13 filter. Bath fans humidity sensored.
  • HVAC: Central air-source heat pump, 10 HSPF, 19.8 SEER. Ducts in crawl.
  • Hot Water: Heat pump water heater, 50-gal, 3.42 COP.
  • Lighting: 100% LED, motion sensors, day lighting.
  • Appliances: ENERGY STAR dishwashers, clothes washer, clothes dryer, refrigerator.
  • Solar: 6.1 kW rooftop panels. Passive solar design.
  • Water Conservation: ENERGY STAR WaterSense-certified house, compact plumbing design.
  • Energy Management System: Smart home system, PV monitoring system.
  • Other: Accessible floor plan, hallways, doorways, showers. Low/no-VOC finishes, flooring.

Building Specifications

Conditioned Area 1,869 ft2
Bedrooms 3
Bathrooms 2.5
Stories 1
Climate Zone 4A
Completion Date July 2021

Modeled Performance

  With PV No PV
HERS Index 1 45
Annual Energy Cost $250.00 $1,150.00
Annual Energy Cost Savings $2,450.00 $1,500.00
Annual Energy Savings 21,300 kWh 12,900 kWh
First 30 Years Savings $99,400.00 $60,000.00