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Deep Energy Retrofit



OVERVIEW

OVERVIEW


15%

19%

8%

27%

23%

8%

(This house reported 26 resource efficient features.
Percentages above indicate the distribution of features and total 100%)

GOALS

  • The owners of this 1970's ranch house were seeking to both add space (700 sq ft) and make dramatic energy improvements (energy efficiency retrofits and solar electric system).
  • To develop a Zero-Energy home, both to obtain utility cost savings and "passive survivability" or the ability of a building to remain habitable when utility disruption occurs during extreme outside temperatures.
Before Deep Energy Retrofit

HOME DETAILS

  • Location: Boulder, Colorado
  • Climate Zone: Cold
  • Type of Project: Renovation
  • Home Completed: 2007
  • Setting: suburban
  • Energy Source: - solar - solar electric
  • Layout: Single-Family; 2 bedroom; Attached garage
  • Lot Size: Unknown
  • Square Footage: 1700
  • Sales Market: Middle-income
  • Cost/Square Foot: $ 250.00

PRIMARY CONTACT

Eric Doub, Owner
Ecofutures Building Inc
- Builder - Designer

Website:
Phone: (303) 415-9694
Email: ericdoub@ecofuturesinc.com

Note
Creating homes that are comfortable, healthy, eco-friendly, and free of energy bills; Ecofutures was in charge of designing the Energy & Comfort Systems for the Deep Energy Retrofit Project.

SPECIAL INFORMATION

The owners of this 1,000 square foot 1970's ranch house were seeking to both add space and make dramatic energy improvements. Intensive renovation has made this modest ranch house a net zero energy home.

Energy efficient retrofits include super-insulating and air sealing throughout the home, and an all-electric design supported by a 6kW photovoltaic array which will produce an estimated 130 percent of the home's energy needs. The system will feed excess energy back into the electrical grid and, once plug-in electric vehicles become available, power the family car. An evacuated-tube solar hot water system will provide hot water and space heating through a radiant floor system.

Ample daylight access, hard surface flooring and an EPA certified wood stove

After the Zero Energy Retrofit

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