Comments on: NASA GROVER Solar-Powered Robot Performs In Harsh Greenland Climate http://cleantechnica.com/2013/07/15/nasa-grover-solar-powered-robot-covers-harsh-greenland-terrain/ Clean Tech News & Views: Solar Energy News. Wind Energy News. EV News. & More. Sun, 28 Dec 2014 14:06:00 +0000 hourly 1 http://wordpress.org/?v=4.0.1 By: JamesWimberley http://cleantechnica.com/2013/07/15/nasa-grover-solar-powered-robot-covers-harsh-greenland-terrain/#comment-171759 Tue, 16 Jul 2013 12:03:00 +0000 http://cleantechnica.com/?p=53945#comment-171759 Electronic components work better in the cold, cf. Mars rovers.

]]> By: Ronald Brakels http://cleantechnica.com/2013/07/15/nasa-grover-solar-powered-robot-covers-harsh-greenland-terrain/#comment-171748 Tue, 16 Jul 2013 08:58:00 +0000 http://cleantechnica.com/?p=53945#comment-171748 On account of how the sun never gets very high in Greenland.

]]> By: Bob_Wallace http://cleantechnica.com/2013/07/15/nasa-grover-solar-powered-robot-covers-harsh-greenland-terrain/#comment-171670 Mon, 15 Jul 2013 22:11:00 +0000 http://cleantechnica.com/?p=53945#comment-171670 I see it fairly simple to mount these panels as single axis tilts that fold flat when the wind is up. The rover should be able to spin itself around so panels face the Sun.

It also wouldn’t be involved to install retractable down-wind outriggers. Just one with a semi-wide foot should keep the unit from going side-over in a sudden gust while the panel was folding down.

As it is the current angle is wrong and the ‘backside’ panel is out of the game.

]]> By: Wayne Williamson http://cleantechnica.com/2013/07/15/nasa-grover-solar-powered-robot-covers-harsh-greenland-terrain/#comment-171666 Mon, 15 Jul 2013 21:51:00 +0000 http://cleantechnica.com/?p=53945#comment-171666 Looks like they might work until the first 60 mph gust….need some little outrider stabilizers, just little cheapy spring loaded wheels or skids to keep it from turning on its side. Oh and I do like the comments on the picture…the sun is coming from the back of the guy so the panels aren’t getting any;-)

After thinking again, the platform should be over 2 meters on a side and put 4 panels on it, one on each side tilted in, probably make sure the interior is sealed..ok now while we are at it, put a couple of panels on top.

See I just fixed the engineering issue and probably raised the cost by 300 percent;-) Ok, not such an elegant solution….

]]> By: Hans Dampf http://cleantechnica.com/2013/07/15/nasa-grover-solar-powered-robot-covers-harsh-greenland-terrain/#comment-171664 Mon, 15 Jul 2013 21:50:00 +0000 http://cleantechnica.com/?p=53945#comment-171664 Note the importer (US-military) and the job of the machine: collecting data

]]> By: Bob_Wallace http://cleantechnica.com/2013/07/15/nasa-grover-solar-powered-robot-covers-harsh-greenland-terrain/#comment-171625 Mon, 15 Jul 2013 18:12:00 +0000 http://cleantechnica.com/?p=53945#comment-171625 Looks like someone slept through the class on panel orientation.

I’m not getting the voices on the video, only sound effect/music.

Maybe next year’s students will arrive with a clue….

]]> By: jburt56 http://cleantechnica.com/2013/07/15/nasa-grover-solar-powered-robot-covers-harsh-greenland-terrain/#comment-171618 Mon, 15 Jul 2013 17:48:00 +0000 http://cleantechnica.com/?p=53945#comment-171618 Note vertical orientation of the panels.

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