For what it is worth, I researched the improvements in battery capacity since the Edison Nickel-iron EV battery in the 1900's. Looks like it went from 20 Whr/kg to 400 Whr/kg on the latest Tesla cells. A 20-to-1 improvement.
For solar, I use the factor of about 200-to-one since 1970. Bob, On Sat, May 8, 2021 at 5:22 PM EVDL Administrator via EV <[email protected]> wrote: > > On 8 May 2021 at 10:10, (-Phil-) via EV wrote: > > > Biofuels can at least be carbon neutral, as you can close the > > carbon cycle. It will take a long way to get there of course, as the > > complete biofuel production cycle is also still a carbon intensive > > operation, but this can be fixed over time. > > With all due respect, "this can be fixed over time" is a bit too much hand- > waving for my taste. > > The problem with biofuels is that growing and harvesting crops, processing > them, and transporting the fuel to the use point requires substantial energy > input, and most of it comes from carbon based fuels. Even fertilizer and > pesticides are made from petroleum. I just don't see that equation changing > fast enough to get us to carbon-neutral in time. > > The only biofuel application I can think of that *might* get closer sooner - > and I'm not 100% sure about even this - is electricity generation. For > example, Uruguay's power system runs largely on pulverized Eucalyptus wood. > The problem with this is that petroleum giants have governments bought and > paid for, and they can't make money from distributing wood chips as easily > as they can from corn processed into ethanol. > > There's also the fact that food turned into fuel while people are starving > round the world has some ... ethical considerations. > > > To get to electrification quicker, I still think some hybridization is > > good. > > Your point about improving utilization of limited battery-production > capacity is a good one. We need to keep plugging ahead (sorry) with battery > recycling, and with developing batteries that use less exotic materials. > NiMH, anyone? Hello? > > But at the consumer level, I think that the use case for hybrids - I mean > real ones, not "you naver have to plug it in" pseudo-hybrids - is fading as > true BEV battery capacity grows and rapid charging facilities multiply. > > It's also easier and more efficient to add PV capacity to EV charging than > it is to add "renewability" to ICEV refueling. > > Finally, a BEV is mechanically much simpler and at least theoretically more > reliable than an ICEV, let alone a hybrid with the complexity of both. I > haven't run the numbers, but intuitively, manufacturing a BEV has to be less > carbon intensive than manufacturing a hybrid, and it should have a longer > service life. > > Like LPs and phono cartridges in 1980, today's ICEVs are highly complex, > almost impossibly refined machines only made affordable by serial production > and massive amounts of long-term development. > > Like CD players in the late 1980s and early 1990s, EVs are evolving rapidly > and quickly declining in cost, thanks to economy of scale and research into > battery optimization. > > Perhaps I'm being uncharacteristically overoptimistic, and I could certainly > be wrong, but I think that what CDs did to LPs by 1995 is what EVs are > poised to do to ICEVs now - if politicians will let them. True hybrids may > still have a place, but I think (and hope) not for much longer. > > David Roden, EVDL moderator & general lackey > > To reach me, don't reply to this message; I won't get it. Use my > offlist address here : http://evdl.org/help/index.html#supt > > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > That's not a "cloud," It's just someone else's computer. > > -- Anonymous > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > > _______________________________________________ > Address messages to [email protected] > No other addresses in TO and CC fields > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > ARCHIVE: http://www.evdl.org/archive/ > LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org _______________________________________________ Address messages to [email protected] No other addresses in TO and CC fields UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
