Another Michigan Net Zero Home

Written by  //  January 31, 2011  //  LEED Platinum, Michigan, Net Zero, Single-Family Projects  //  1 Comment

This 3-bedroom home with an attached 2-bedroom mother-in-law cottage provides living, workshop and home-office space for the homeowners and their mothers. It features barrier-free design throughout with zero-step entry, low thresholds, roll-in showers, grab bars, and knee-space under sinks and cooktops.

Saranac, Michigan net zero energy home

Go here to see an interactive website of the home with data on energy use compared to energy captured through PV

The super-insulated shell uses double-stud wall construction with 24,000 pounds of recycled cellulose insulation in the walls and attic, and a 6-inch layer of reclaimed foam insulation under the stained concrete floor. Heat from six flat-plate solar collectors is stored in an insulated 2,500-gallon water tank, which warms the floor and also provides most of the heat for domestic hot water.

High-efficiency wood stoves make up the balance of winter heating needs, and a small electric backup heater maintains temperatures when necessary. The home is designed to produce more electricity than it consumes on an annual basis.

The home has no lawn and is surrounded instead by gardens. The steel roof collects 2,000 gallons per inch of rainwater, which is stored in an 11,000 gallon cistern for garden irrigation and flushing toilets. A root cellar built into the hill behind the house provides zero-energy cold storage of fruits and vegetables.

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