Alternative Energy Sources http://machinedesign.com/taxonomy/term/7699/more en Wind power without wind turbines http://machinedesign.com/archive/wind-power-without-wind-turbines <div class="field-byline"> Leland E. Teschler </div> <div class="node-body article-body">Electrostatic wind power harvests wind energy with no turbine blades, gearboxes, or other expensive hardware. But there are still challenges to be overcome before the concept is ready for prime time.</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/archive/wind-power-without-wind-turbines" target="_blank">read more</a></p> http://machinedesign.com/archive/wind-power-without-wind-turbines#comments Alternative Energy Sources Features Power Generation Sustainable Engineering Wind Power Energy Archive Tue, 09 Apr 2013 04:42:03 +0000 24531 at http://machinedesign.com Plastic-film sensor may double as energy harvesting device http://machinedesign.com/news/plastic-film-sensor-may-double-energy-harvesting-device <div class="field-byline"> Leland E. Teschler </div> <div class="node-body article-body">A special silicone-based material normally used to sense movement could double as an energy harvesting device in situations characterized by relatively large strain and relatively low forces.</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/news/plastic-film-sensor-may-double-energy-harvesting-device" target="_blank">read more</a></p> http://machinedesign.com/news/plastic-film-sensor-may-double-energy-harvesting-device#comments Alternative Energy Sources Electronics & Semiconductors News Silicone Sustainable Engineering Energy Controllers Plastics and Composites News Fri, 22 Mar 2013 07:58:08 +0000 24529 at http://machinedesign.com Less wind than you might think http://machinedesign.com/news/less-wind-you-might-think <div class="field-byline"> Leland E. Teschler </div> <div class="node-body article-body">A recent analysis of worldwide wind energy by UNC and Harvard researchers indicates that geophysical and climate considerations reduce the amount  of energy available for harvest from the wind to well below prior estimates.</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/news/less-wind-you-might-think" target="_blank">read more</a></p> http://machinedesign.com/news/less-wind-you-might-think#comments Alternative Energy Sources News Sustainable Engineering Wind Power Energy News Thu, 21 Mar 2013 07:20:58 +0000 24528 at http://machinedesign.com Windpower challenge: Building better blades http://machinedesign.com/news/windpower-challenge-building-better-blades <div class="field-byline"> Stephen J. Mraz </div> <div class="field-deck"> <p>Companies are developing new technologies to improve wind-turbine blades.</p> </div> <div class="node-body article-body">Companies are developing new technologies to improve wind-turbine blades.</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/news/windpower-challenge-building-better-blades" target="_blank">read more</a></p> http://machinedesign.com/news/windpower-challenge-building-better-blades#comments Alternative Energy Sources News Sustainable Engineering Energy News Sat, 09 Feb 2013 07:03:16 +0000 11991 at http://machinedesign.com Harvesting energy from water vapor http://machinedesign.com/news/harvesting-energy-water-vapor <div class="field-byline"> Leland E. Teschler </div> <div class="node-body article-body">MIT researchers have figured a way to move piezoelectric material with polymers that react to water vapor. The technique harvests enough energy from water vapor to do useful work.</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/news/harvesting-energy-water-vapor" target="_blank">read more</a></p> http://machinedesign.com/news/harvesting-energy-water-vapor#comments Alternative Energy Sources News Sustainable Engineering Energy News Fri, 25 Jan 2013 07:56:31 +0000 11984 at http://machinedesign.com Superconducting generators could make big wind turbines less expensive http://machinedesign.com/news/superconducting-generators-could-make-big-wind-turbines-less-expensive <div class="field-byline"> Leland E. Teschler </div> <div class="node-body article-body">A European effort could result in the first superconducting generator sitting in a utility scale wind turbine.</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/news/superconducting-generators-could-make-big-wind-turbines-less-expensive" target="_blank">read more</a></p> http://machinedesign.com/news/superconducting-generators-could-make-big-wind-turbines-less-expensive#comments Alternative Energy Sources News Sustainable Engineering Energy News Thu, 24 Jan 2013 09:42:28 +0000 11983 at http://machinedesign.com Navy tries turning seawater into fuel http://machinedesign.com/news/navy-tries-turning-seawater-fuel <div class="field-byline"> Stephen J. Mraz </div> <div class="node-body article-body">Engineers at the U.S. Naval Research Laboratory are developing a way to turn seawater into fuel.</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/news/navy-tries-turning-seawater-fuel" target="_blank">read more</a></p> http://machinedesign.com/news/navy-tries-turning-seawater-fuel#comments 2012-11-22 Alternative Energy Sources News Sustainable Engineering Energy News Archive Wed, 21 Nov 2012 03:29:42 +0000 11937 at http://machinedesign.com Forklift motor lets eMotorcycle take the checkered flag http://machinedesign.com/news/forklift-motor-lets-emotorcycle-take-checkered-flag <div class="field-byline"> Stephen J. Mraz </div> <div class="node-body article-body">Engineering students at Virginia Tech University designed an electric motorcycle that ran in the TTXGP, a series of 20-mile races.</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/news/forklift-motor-lets-emotorcycle-take-checkered-flag" target="_blank">read more</a></p> http://machinedesign.com/news/forklift-motor-lets-emotorcycle-take-checkered-flag#comments 2012-11-22 Alternative Energy Sources News Sustainable Engineering Energy News Archive Wed, 21 Nov 2012 02:12:02 +0000 11933 at http://machinedesign.com Vertical wind turbines: An offshore option? http://machinedesign.com/news/vertical-wind-turbines-offshore-option <div class="field-byline"> Stephen J. Mraz </div> <div class="node-body article-body">Offshore wind turbines have problems that include high construction and maintenance costs and the risk of toppling in high seas or strong winds, especially for floating turbines. These problems can be eliminated </div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/news/vertical-wind-turbines-offshore-option" target="_blank">read more</a></p> http://machinedesign.com/news/vertical-wind-turbines-offshore-option#comments 2012-09-06 Alternative Energy Sources News Sustainable Engineering Wind Power Energy News Archive Thu, 06 Sep 2012 23:07:40 +0000 11828 at http://machinedesign.com Holland’s newest power plant: A centuries-old windmill http://machinedesign.com/news/holland-s-newest-power-plant-centuries-old-windmill <div class="field-byline"> Stephen J. Mraz </div> <div class="node-body article-body">There are over 1,000 old mills spread over the Holland countryside, Last year, one of them was the first to be retrofit with an add-on package for generating electrical power</div> <div class="og_rss_groups"></div><p><a href="http://machinedesign.com/news/holland-s-newest-power-plant-centuries-old-windmill" target="_blank">read more</a></p> http://machinedesign.com/news/holland-s-newest-power-plant-centuries-old-windmill#comments 2012-08-23 Alternative Energy Sources News Sustainable Engineering Wind Power Energy News Archive Thu, 23 Aug 2012 23:09:40 +0000 11796 at http://machinedesign.com