Concerned with the long-term effects of drought and the Texas Water Development Board’s projection that municipal water demand will double as the population of Texas doubles over the next 50 years, NexusHaus focuses on water conservation, treatment, and reuse.
To reduce reliance on city water, NexusHaus will capture rainwater to provide all of its potable water needs and will only be connected to the city supply by a small refill line. The minimal supply from the city will serve as a backup during long dry spells. This potable rainwater harvesting system minimizes added stress to the region’s water supplies and minimizes the additional load of more residents on the existing neighborhood water and wastewater infrastructure while increasing density in the city. Additionally, the on-site treatment system avoids the water losses along the municipal distribution system by approximately 10 percent, and the thermal storage tank acts as a secondary storage volume for rainwater, giving the system additional capacity while also providing beneficial load shifting.
In addition to providing potable water for the home, NexusHaus’ integrated rainwater thermal storage system shifts cooling off peak to low-demand nighttime hours while reducing storm water runoff which taxes the aging infrastructure in the City of Austin.
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