Hi Bill and All, So you think it takes 50,000kwhrs of energy to make 1kw of PV produces US average site? Of a 1kw panel array of 50sq' or so? What have you been drinking/smoking?
That is equal to 1200gals gasoline at 100% eff which gasoline is not, only 7% eff to the road. Vs 65% or so an EV gets from solar. You are quoting the same big energy propaganda lying machine they use against EV's and now against biofuels. , EV's, home, building made power because they know they are toast as more of their own power for a fraction of utility power now. Fact is utilities are already shrinking the last 3 yrs despite more, larger buildings, people because of RE, eff. That will accelerate now PV is well under $1/wt-$1k/kw which if shopped, installed well is only $.03-.06/kwhr. sunelec for parts, local electrician to install among other sources. Lastly if PV took so much energy to make, how do they sell them so cheap? Please take your big energy propaganda somewhere else or just stop misleading people with such falsehoods. Solar roadways don't stand a chance being cost effective because of so, so many reasons. We only need 25% of US roofs to supply much of the power we need so they are not needed. Now solar overhead covered parking lots give added value;^)) Jerry Dycus On Sunday, May 25, 2014 3:38 PM, Michael Ross via EV <[email protected]> wrote: A roof mounted PV system has a mitigating effect on the cooling needs of the building. The PV maybe less efficient, but it needs to do less work. I have no idea how that really balances out. On Sun, May 25, 2014 at 1:52 PM, Lawrence Rhodes via EV <[email protected]>wrote: > > > > Studies have shown having PV in cool climates is a bit more efficient than > hot climates as the cool air improves how the PV works and extends working > life. Lawrence Rhodes > > > > > >The last studies I saw (which I can try to dig up) showed PV energy > payback at between 1 and 4 years -- so with a 25+ year lifespan, they > should easily pay back, even in a climate like Seattle or Germany. > > > > > >Now, if you put it on a highway, which they seem to tear up and resurface > every 3 or 4 years around here to add lanes or just have fun with orange > cones, it doesn't make as much sense. I really question the sense of > putting solar where semi trucks and snowplows and studded tires and chains > have a chance to tear it up... even concrete wears down pretty bad after > 10+ years of that. Much better in my mind to put it above the highway as a > canopy. > > > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140525/f39527ca/attachment.htm > > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA ( > http://groups.yahoo.com/group/NEDRA) > > -- Put this question to yourself: should I use everyone else to attain happiness, or should I help others gain happiness? *Dalai Lama * Tell me what it is you plan to do With your one wild and precious life? Mary Oliver, "The summer day." To invent, you need a good imagination and a pile of junk. Thomas A. Edison<http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> A public-opinion poll is no substitute for thought. *Warren Buffet* Michael E. Ross (919) 550-2430 Land (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Google Phone (919) 631-1451 Cell (919) 513-0418 Desk [email protected] <[email protected]> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20140525/8aac70bc/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use 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/20140525/ebafe016/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
