tag:blogger.com,1999:blog-1290809703489220260.post1154116785237568110..comments2023-07-18T21:48:28.948-10:00Comments on Light on the Earth: Solar Powered Live-aboard CatamaranJonathan Colehttp://www.blogger.com/profile/00753295858455006026noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-1290809703489220260.post-91953036783324248232017-07-04T21:43:42.580-10:002017-07-04T21:43:42.580-10:00This is interesting project regarding live aboard....This is interesting project regarding <a href="http://www.tawali.com/mv-spirit-of-niugini/" rel="nofollow">live aboard</a>. Cool!Elishahttps://www.blogger.com/profile/14661674165920487095noreply@blogger.comtag:blogger.com,1999:blog-1290809703489220260.post-44720396815906471122013-08-06T01:06:36.820-10:002013-08-06T01:06:36.820-10:00Thanks for sharing such informative post. It was r...Thanks for sharing such informative post. It was really worth reading the post.<br />lightweight flat roofshttp://www.polarracking.comnoreply@blogger.comtag:blogger.com,1999:blog-1290809703489220260.post-85235399417133129222012-12-09T19:01:13.736-10:002012-12-09T19:01:13.736-10:00Hello,
Currently an engineering student. Love the ...Hello,<br />Currently an engineering student. Love the idea of your company. Is it a publicly traded? I would by stock if that option exists. <br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1290809703489220260.post-25832071471936084032010-01-20T05:42:05.597-10:002010-01-20T05:42:05.597-10:00I just want too take time too thank the posters fo...I just want too take time too thank the posters for doing what you do and making the community what it is im a long time reader and first time poster so i just wanted to say thanks.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1290809703489220260.post-9799837898035104152009-02-05T06:43:00.000-10:002009-02-05T06:43:00.000-10:00A boat to take 30 people to sea for 2 weeks would ...A boat to take 30 people to sea for 2 weeks would be much bigger than the design we have been working on. More like 100 meters than our 16 meter catamaran. <BR/><BR/>In our design work we have noted that the solar equipment that powers our all electric boat is in the same range of cost as a sailboat's masts, booms, sails, rigging, winches and internal combustion engines. That would most likely hold true on scaling up. <BR/><BR/>I am familiar with the Solomon Technologies system that charges batteries through the props while underway using sail power. All good so long as the wind is sufficient to propel the boat at speed with surplus to generate electricity. Of course, nature does not operate on a firm schedule, so there are certainly times when this system would not provide sufficient energy, particularly if you are envisioning such a large group. So you would still need backup such as solar or a fueled generator.Jonathan Colehttps://www.blogger.com/profile/00753295858455006026noreply@blogger.comtag:blogger.com,1999:blog-1290809703489220260.post-23610867036146410512009-02-05T05:48:00.000-10:002009-02-05T05:48:00.000-10:00Thanks for your very prompt response. I'm interest...Thanks for your very prompt response. I'm interested in potential commercial uses where waiting a day or two is not an option hence my concern over power. The vessel I'm envisioning will need to be continuously habitable (20-30 people including crew) for extended periods (say 2-3 weeks at a time at sea) and need to be equipped accordingly.<BR/><BR/>Also, would you care to compare and contrast the acquisition and operational costs of such a vessel with conventional sailing catamarans equipped with electric motors which already derive their propulsion from wind and presumably have a pretty small carbon footprint. For example sailing catamarans outfitted with electric motors from <A HREF="http://www.solomontechnologies.com/advantages.htm" REL="nofollow">Solomon Technologies</A> or similar devices.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1290809703489220260.post-21652266423059220912009-02-02T16:49:00.000-10:002009-02-02T16:49:00.000-10:00This can be scaled up to and including floating so...This can be scaled up to and including floating solar powered cities. <BR/><BR/>There can be a conventional generator for backup, although it will be rarely used, because this all electric boat can charge up with grid power when at the dock or utilizing on board solar charging with its 15 Kw array. Its 60Kw/Hr battery allows for lots of running time even on a cloudy/windless day. In any case, photovoltaics will put out up to 50 percent of their rated output in cloudy weather. <BR/><BR/>Since this is a boat that is meant for recreational purposes, if you are short on power you can always wait a day or two. If you use such a craft like a vacation home, you will always be charged up when you are ready to party.Jonathan Colehttps://www.blogger.com/profile/00753295858455006026noreply@blogger.comtag:blogger.com,1999:blog-1290809703489220260.post-20058043044049017702009-02-02T16:23:00.000-10:002009-02-02T16:23:00.000-10:00I think this is a great idea! Can this design be ...I think this is a great idea! Can this design be scaled up to accommodate 25-40 people? Is there a conventional engine for backup? What happens on cloudy/windless days?Anonymousnoreply@blogger.com