The world’s first "Biological House" opens in Denmark

November 29, 2017 by  
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Danish firm Een til Een just unveiled the world’s first “Biological House.” The designers developed a process that converts agricultural waste (including grass, straw and seaweed) into raw building materials – and the resulting home leaves virtually zero impact upon the environment. Supported by the Danish Ministry of the Environment Fund for Ecological Construction, the architects built the eco-friendly home in secret for the new BIOTOPE ecopark in Middelfart, Denmark. The project – which was designed by advanced digital production technology – was first and foremost guided by sustainability at every stage. The architects sourced various agricultural “leftovers” for the project’s building materials. Mounds of recovered grass, straw and seaweed – all of which would, under normal circumstances, be burned for energy – were processed into raw materials to be used in the home’s construction. Not only were the products upcycled, but the environmental impact of burning them was avoided. Related: Man builds ultra-efficient green home as a love letter to the environment The home’s sophisticated cladding was also chosen for its strong eco-friendly profile. Kebony modifies sustainably-sourced softwoods by heating the wood with a bio-based liquid, basically polymerising the wood’s cell wall. This innovative process, which was developed in Norway, coverts softwood pieces into durable hardwood panels, perfect for building. In the case of the Biological House, the silver-grey cladding will develop a patina over time, giving the home a beautiful rustic character. The home’s construction process was also environmentally-forward. The architects tested and developed many innovative technologies during the construction process that would reduce the project’s impact. Instead of building on a typical concrete foundation, for example, the home was built on screw piles. This allows the home to be easily removed at any point, without causing damage to the terrain. + Een til Een Via World Architecture News Images via Kebony Technology

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The world’s first "Biological House" opens in Denmark

New rooftop solar hydropanels harvest drinking water and energy at the same time

November 29, 2017 by  
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Sunlight + Air = Water . It’s a seemingly befuddling equation, but it’s at the heart of a new solar hydropanel developed by Arizona-based startup Zero Mass Water . Called SOURCE, the panels can be installed atop any building just like a standard photovoltaic, but instead of just harvesting solar energy, it uses the sun’s rays to pull water from the air. Indeed, each panel has the potential to draw up to 10 liters (2.64 gallons) of water per day. So how does it work? Each SOURCE array consists of a standard solar panel flanked by two hydropanels. As explained by The Verge in the video above, the photovoltaic at the center of the array drives a fan and the system’s communication with the hydropanels. The hydropanels themselves consist of two different proprietary materials, one that can generate heat, and another that can absorb moisture from the air. Together they are able to condense water into an onboard, 30-liter reservoir where it is mineralized with calcium and magnesium. From there, the water can be siphoned directly to a drinking tap. As one might guess, the amount of humidity in the atmosphere and solar energy available will affect the payout. However, Zero Mass Water says that even low-humidity and arid regions can effectively benefit. The company’s CEO, Cody Friesen, cited the array atop his headquarters as an example. “Our array on the Zero Mass Water headquarters in Scottsdale, Arizona makes water year-long despite low relative humidity. The Phoenix-Metro area can get below 5% relative humidity in the summer, and SOURCE still produces water in these incredibly dry conditions,” he said. Additional panels can also be added to optimize water collection, but there is the matter of cost. Right now, the two-panel array costs $4000, plus installation, which runs $500. The whole system has been engineered to last 10 years, which according to  Treehugger ’s calculations, this averages out to about $1.23 per day, or between $0.12 and $0.30 per liter of H2O. To date, hundreds of panels have been set up in eight countries around the globe. Zero MassWater says the installations represent a combination of early adopters who have paid out of pocket for the technology and developing areas and emergency situations where funding has been provided by donors, NGOs, or other institutions. +  Zero Mass Water Via Treehugger  and  The Verge Images via Zero Mass Water

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New rooftop solar hydropanels harvest drinking water and energy at the same time

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