SINTEF Archives – The Green Optimistic green tech news, since 2008 Sun, 08 Jan 2012 19:59:27 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 NEXT-Drill: Norway's New $4 million Geothermal Project https://www.greenoptimistic.com/norway-next-drill-geothermal-project-20120108/ https://www.greenoptimistic.com/norway-next-drill-geothermal-project-20120108/#respond Sun, 08 Jan 2012 19:59:27 +0000 https://www.greenoptimistic.com/?p=21870 Two things do geothermal and solar heat have in common: they are both clean and “bottomless bags.” Still, unlike solar, geothermal heat does not vary according to the weather forecast, the moment of the day or the season we’re in. It’s there to stay and make our lives better, less dependent on perennial sources like […]

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]]> https://www.greenoptimistic.com/norway-next-drill-geothermal-project-20120108/feed/ 0 21870 Zinc Air Batteries Just Got Rechargeable https://www.greenoptimistic.com/zinc-air-batteries-just-got-rechargeable-20091029/ https://www.greenoptimistic.com/zinc-air-batteries-just-got-rechargeable-20091029/#comments Thu, 29 Oct 2009 06:59:54 +0000 https://www.greenoptimistic.com/?p=5031 A Swiss company based in Staefa, claims it developed zinc-air batteries, capable to hold three times the energy of lithium ion batteries, by volume, while costing only half as much," and compared with other existing air batteries, this one would be rechargeable.

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