06 May '11, 10pm

On oldie but a goodie: Local power: tapping distributed energy in 21st-century cities

On oldie but a goodie: Local power: tapping distributed energy in 21st-century cities

Hammarby Sjostad "eco-cycle" Source: HammarbySjostad.de Residents of Hammarby Sjöstad, a district on the south side of Stockholm, Sweden, don't let their waste go to waste. Every building in the district boasts an array of pneumatic tubes, like larger versions of the ones that whooshed checks from cars to bank tellers back in the day. One tube carries combustible waste to a plant where it is burned to make heat and electricity. Another zips food waste and other biomatter away to be composted and made into fertilizer. Yet another takes recyclables to a sorting facility. Meanwhile, wastewater is taken to a treatment plant, from whence it emerges as biosolids for more compost, biogas for heat and transportation fuel, and pure water to cool a power plant, which also runs on biofuels grown with the biosolids. Looking at a chart of all this is enough to induce dizziness. "In ter...

Full article: http://www.grist.org/article/2010-06-16-local-power-tappi...

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