Why has no one mentioned the obvious: the Stella Lux and Stella Vie which achieve practical solar power because they are extremely lightweight and sport a 1.2 to 1.5 solar PV. The Dutch team that has produced these street legal vehicles (4-5 passengers, top speed of 77 mph) is also working on a production model named "LightYear"
On Sat, Dec 8, 2018 at 9:40 PM paul dove via EV <[email protected]> wrote: > (Eight hours of charging Tesla’s Model 3 from a wall socket will > give you your expected 200-plus miles of range.) > Someone's math is off. You can only get 1KW/h from a wall socket. Maybe 30 > miles in 8 hours. > > On Saturday, December 8, 2018, 8:05:15 PM CST, brucedp5 via EV < > [email protected]> wrote: > > > > https://qz.com/1482588/why-teslas-dont-and-cant-have-solar-roofs/ > Why Teslas don’t—and can’t—have solar roofs > December 3, 2018 Kabir Chibber > > [images > https://cms.qz.com/wp-content/uploads/2018/12/RTX1A0WZ.jpg > The only solar-powered cars that work > > https://cms.qz.com/wp-content/uploads/2018/12/RTS1WEN8.jpg > The Sono prototype / REUTERS/Andreas Gebert > ] > > It’s a pretty intuitive question. “Why don’t electric cars have solar > roof[s?]” asked one person in the “No Stupid Questions” area of Reddit. > “Wouldn’t it make sense to have a self sustaining charging capabilities.” > There are similar questions on Quora and elsewhere. > > Teslas and other cars run off electricity, drawing from an electric-power > infrastructure that often runs off of dirty fuels. Solar power generates > lots of electricity for free from the sun. Why don’t electric cars have > solar roofs to power them for free? > > For one thing, the math makes it quite difficult. Elon Musk briefly > suggested that solar roofs would be an option for the Tesla Model 3, but > later walked it back and explained why. “Putting solar panels on the car > itself?” Musk said in July 2017. “Not that helpful, because the actual > surface of the car is not that much, and cars are often inside. The least > efficient place to put solar is on the car.” It turns out that he had meant > a solar roof that unfolds from the trunk and overs the current car hood. > > A Tesla rival, the Karma Revero, actually has a solar roof as an option. As > Wired noted (paywall), modern solar panels are inefficient and convert just > 15-20% of the energy that reaches them. So that Revero solar roof, having > received eight hours of pure sunshine, will generate enough power to drive > 1.5 miles. (Eight hours of charging Tesla’s Model 3 from a wall socket will > give you your expected 200-plus miles of range.) > > On Quora, Chris Harget, a product-marketing manager in the Bay Area, > summarizes the problems (emphasis added by him): > > The top of an electric car has maybe 3–5 square meters of flat space. > > Solar panels, even at high noon, usually only produce about 200 > watt-hours per square meter. > > The most efficient production electric vehicles today (probably the > Hyundai Ioniq and the Tesla Mod 3) would only be able to travel 2–4 miles > on > that amount of electricity…in an hour. Most people could walk faster. > > Financially, the cost of the panels and electronics, R&D and assembly > would never pay for itself in the life of the vehicle, compared to charging > from the wall in your garage. > > That doesn’t mean no one is trying. There’s a German startup called Sono > Motors that wants to build cars with solar panels. Toyota last year > announced that upcoming Prius hybrid cars would come with Panasonic solar > roofs (paywall). > > Still, even as solar panels become more common and more efficient, they > won’t be on most cars anytime soon. > [© qz.com] > > > + > > https://www.businessgreen.com/bg/news/3067447/vattenfall-begins-rollout-of-wind-powered-ev-chargers-in-norfolk > Vattenfall begins rollout of wind-powered EV chargers > 04 December 2018 Vattenfall is set to begin rolling out its first UK > electric vehicle (EV) chargers in Norfolk this week, after today announcing > a new partnership with BMM Energy ... > > https://www.businessgreen.com/w-images/0e05a981-078a-438e-a16e-cca8813b0f5f/3/InchargeatPyC-580x358.jpg > > > > > For EVLN EV-newswire posts use: > http://evdl.org/archive/ > > > {brucedp.neocities.org} > > -- > Sent from: http://electric-vehicle-discussion-list.413529.n4.nabble.com/ > _______________________________________________ > 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/20181209/5e5718ed/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) > > -- Larry Gales -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20181208/2b821e00/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)
