zHomes Use Zero Net Energy in Issaquah
zHome is a contemporary, new, townhome development in Issaquah, Washington. The homes go on sale this month and have received national attention, such as in the video embedded below with the Wall Street Journal. Homes in this community will use zero net energy — after considering all energy used and produced during a year — and zHome may just be the first townhome project in the country to achieve such a feat.
In order to achieve zero net energy, the project team first sought ways to reduce total energy demand and ended up cutting annual energy use from about 14,000 kWh per year to about 5,000 kWh per year. Next, the remaining 5,000 kWh is offset with solar PV mounted on the roof.
zHomes have super-insulated walls (2×6 walls with EPS and a 3″ jacket of EPS), double-paned windows, a ground-source heat pump, heat recovery ventilator, hydronic heating, high-efficiency lighting and appliances, and an energy feedback monitor.
Other than energy efficiency and on-site solar energy, zHomes have a rainwater catchment system that reclaims water for use in toilet flushing and clothes washing. There’s also high-efficiency toilets, clothes washers, dishwashers, showerheads, and bathroom faucet aerators.
zHome is developed by Matt Howland and Ichijo USA with the sponsorship of the City of Issaquah and the assistance of Built Green, King County, Port Blakely Communities, Puget Sound Energy, and the Washington State University Energy Program.
Related Articles on JetsonGreen.com:
- Zero Net Energy Homes at Sage Green
- 12 Platinum Net Zero Energy Homes
- Platinum Net Zero Energy Yannell House
Posted: 2011-09-27 00:11:10
- Video: Invest an Acre 21 May 2013 | 4:00 am
- Fighting the Fury Once Again: 14 Actions We Can Take 21 May 2013 | 3:55 am
- Union Pacific Recognizes Companies for Chemical Transportation Safety 21 May 2013 | 3:15 am
- Cisco BIG Awards: Calling All UK Entrepreneurs 21 May 2013 | 3:15 am
- Henry Schein Opens Its Disaster Relief Hotline to Support Customers Affected by the Tornado in Oklahoma 21 May 2013 | 3:15 am