Ichijo won the Builders Challenge Award

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Ichijo won the Builders Challen... BASF and the U.S. Department of Energy (DOE) honored 10 U.S. homebuilders during the 2012 International Builders Show at the Orange County Convention Center, Orlando, Florida.
Builders Challenge Award pay tribute to builders who achieve significant benchmarks under the DOE Builders Challenge Program.
http://www1.eere.energy.gov/buildings/challenge/

Thanks to high performance of insulation and airtightness as well as PV systems, Ichijo's zHome have scores ranging from 0 to -12 point (Net Zero Energy) in Home Energy Rating System (HERS) which is far below the benchmark of Builders Challenge homes which must be 70 points or lower.
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