solar for poor Archives – The Green Optimistic green tech news, since 2008 Fri, 26 Jun 2015 10:47:15 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 3D Printed Flexible Solar Cells to Provide Cheap Electricity Everywhere https://www.greenoptimistic.com/3d-printed-solar-cells/ https://www.greenoptimistic.com/3d-printed-solar-cells/#respond Fri, 26 Jun 2015 10:47:15 +0000 https://www.greenoptimistic.com/?p=55372 New technology to make cheap, super thin and flexible, 3D printed, solar strips, could provide affordable electricity around the world. Solar is heading fast towards becoming the world’s main source of energy, with super efficient and more affordable technologies emerging every day. But if for us in the developed  world this could only mean drop […]

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]]> https://www.greenoptimistic.com/3d-printed-solar-cells/feed/ 0 55372 Solvatten: Solar Powered Water Purifier for the Poor https://www.greenoptimistic.com/solvatten-solar-powered-water-purifier-for-the-poor-20090113/ https://www.greenoptimistic.com/solvatten-solar-powered-water-purifier-for-the-poor-20090113/#comments Tue, 13 Jan 2009 10:06:50 +0000 https://www.greenoptimistic.com/?p=1553 While most new inventions are for wealthy people, with some social status, once in a while there are inventions aimed to help the poor and provide the minimal sanitary conditions through simple and inexpensive methods.To get one liter of boiling water you need one kilo of firewood. People living in areas with no safe water usually spend 3-10% of total income/year on water.

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