A solar trailer with a conventional EV is not well suited to sustained highway speed transport. It can however be useful for range extension (if you can charge while driving or use the trailer as a pusher) or for slow charging while camping at non-electric camp sites. Getting 1 kW on a trailer is definitely possible, and that in turn can get you about 3-4 kWh per day depending on solar orientation and day length. 3-4 kWh is 12-16 miles/day for a 250 Wh/mile EV. For someone camping in a particular place for several days at a time, this could work out alright.
On December 28, 2017 1:21:41 PM CST, EVDL Administrator via EV <[email protected]> wrote: >On 28 Dec 2017 at 5:05, ROBERT via EV wrote: > >> I do not know who does your math. The email states "Leaf gets 4.5 >miles per >> kw at 55mph more or less depending on wind." Therefore, 1000 W / 4.5 >miles = >> 222 W per mile. This appears to be a little low to me. However, if >it is >> accurate, you would need 222 W to go one mile. > >First of alll, that should be kilowatt hours (KWH) and watt-hours, not >just >watts. Watts per mile is a meaningless unit. Saying your EV uses 222 >watts >per mile is like saying your ICEV uses 120 horsepower per mile. > >Second, I don't see anything wrong with the math in the message you're >replying to. My only quibble would be with "you would need a minimum >input >of 12,220 watts." I would say that he needs a minimum AVERAGE input of > >about that amount of power. > >Others have posted the amount of square PV area needed, so I won't >rehash >that. I'll just remind you that the sun doesn't shine 24 hours a day, >and >that insolation is lower on cloudy days and in the winter. Even if you >can >design a trailer to keep your EV going 55 at noon on a clear summer >day, >what will you do at other times? > >Putting PVs on a vehicle (or its trailer) probably isn't the most >efficient >use of your PV dollars. Is it really worth it? Your call. > >David Roden - Akron, Ohio, USA >EVDL Administrator > >= = = = = = = = = = = = = = = = = = = = = = = = = = = = = >EVDL Information: http://www.evdl.org/help/ >= = = = = = = = = = = = = = = = = = = = = = = = = = = = = >Note: mail sent to "evpost" and "etpost" addresses will not >reach me. To send a private message, please obtain my >email address from the webpage http://www.evdl.org/help/ . >= = = = = = = = = = = = = = = = = = = = = = = = = = = = = > > >_______________________________________________ >UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub >http://lists.evdl.org/listinfo.cgi/ev-evdl.org >Please discuss EV drag racing at NEDRA >(http://groups.yahoo.com/group/NEDRA) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20171228/e4bcefd1/attachment.html> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
