d******g
发帖数: 6966 | 1 http://www.insideline.com/chevrolet/volt/2011/comparison-test-2011-chevrolet-volt-vs-2010-toyota-prius-phv.html
"Here's another way to look at this: If you had the same amount of money to
spend on a normal car's regular unleaded gasoline every month, what EPA
combined mpg rating would that car have to achieve to cover the same 1,250
miles? This is what we like to call mpg-c, the cost-based mpg equivalent.
2011 Chevrolet Volt 37 mpg-c
2010 Toyota Prius PHV 54 mpg-c
You may notice that our 37 mpg-c number for the Volt differs quite a bit
from the 60 mpg-e "combined composite" number that's found on the EPA label.
That's largely because the EPA does not use cost as a basis for converting
electricity consumption into mpg. Instead, it uses energy content to equate
the two.
This is great for scientists, but gasoline and electricity are independent
commodities that are not priced on an energy content basis, meaning the EPA'
s mpg-e unit is pretty much meaningless. Our mpg-c unit is far more useful
if you're accustomed to using window sticker mpg as a cost yardstick." |
F***y
发帖数: 141 | 2 这个算得不公平，把人家电放光了算汽油机效率，prius也要先高速跑20mile之后再算
mpg
to
label.
【在 d******g 的大作中提到】
: http://www.insideline.com/chevrolet/volt/2011/comparison-test-2011-chevrolet-volt-vs-2010-toyota-prius-phv.html
: "Here's another way to look at this: If you had the same amount of money to
: spend on a normal car's regular unleaded gasoline every month, what EPA
: combined mpg rating would that car have to achieve to cover the same 1,250
: miles? This is what we like to call mpg-c, the cost-based mpg equivalent.
: 2011 Chevrolet Volt 37 mpg-c
: 2010 Toyota Prius PHV 54 mpg-c
: You may notice that our 37 mpg-c number for the Volt differs quite a bit
: from the 60 mpg-e "combined composite" number that's found on the EPA label.
: That's largely because the EPA does not use cost as a basis for converting
|
f********m
发帖数: 8397 | 3 2mile就够了。关键是要看一次跑多远，1-2mile,可能差不多，2-40 miles,volt完胜。
40
miles以上prius可能占便宜，电池小呀。
考虑到大多数人平时在40miles一下，volt还是更有效率。而且慢慢充电站也多起来了
，office,
mall都能充电。我记得充电站建起来很便宜的。
【在 F***y 的大作中提到】
: 这个算得不公平，把人家电放光了算汽油机效率，prius也要先高速跑20mile之后再算
: mpg
:
: to
: label.
|
c*********r
发帖数: 19468 | 4 各地的电费、油价也不一样吧？这个mpg-c看样子并不是一个可靠的测量
btw
科学美国人还是哪个杂志有过一篇文章讨论一个相关的问题
就是plug-in是否能比普通的full hybrid进一步降低排放
结论当然是因地而异，较多使用化石燃料发电的州，plug-in其实不如hybrid
但如果较多使用其它能源，plug-in就还是有优势
to
label.
【在 d******g 的大作中提到】
: http://www.insideline.com/chevrolet/volt/2011/comparison-test-2011-chevrolet-volt-vs-2010-toyota-prius-phv.html
: "Here's another way to look at this: If you had the same amount of money to
: spend on a normal car's regular unleaded gasoline every month, what EPA
: combined mpg rating would that car have to achieve to cover the same 1,250
: miles? This is what we like to call mpg-c, the cost-based mpg equivalent.
: 2011 Chevrolet Volt 37 mpg-c
: 2010 Toyota Prius PHV 54 mpg-c
: You may notice that our 37 mpg-c number for the Volt differs quite a bit
: from the 60 mpg-e "combined composite" number that's found on the EPA label.
: That's largely because the EPA does not use cost as a basis for converting
|
f********m
发帖数: 8397 | 5 这个用什么发电是电厂根据什么决定的？
【在 c*********r 的大作中提到】
: 各地的电费、油价也不一样吧？这个mpg-c看样子并不是一个可靠的测量
: btw
: 科学美国人还是哪个杂志有过一篇文章讨论一个相关的问题
: 就是plug-in是否能比普通的full hybrid进一步降低排放
: 结论当然是因地而异，较多使用化石燃料发电的州，plug-in其实不如hybrid
: 但如果较多使用其它能源，plug-in就还是有优势
:
: to
: label.
|
c*********r
发帖数: 19468 | 6 水电/风电/太阳能/地热/潮汐……这些都受地理限制很大，其次是政治因素
核能应该受政治因素限制最大
火电也有政治因素限制，但更多的是取决于运输成本之类的（也因此与地理因素有关）
以上是我胡说的
【在 f********m 的大作中提到】
: 这个用什么发电是电厂根据什么决定的？
|
F*********e
发帖数: 2696 | 7 基本考虑还是怎么赚钱怎么来
政治因素最终还是要通过补贴之类转化成钱的因素
【在 f********m 的大作中提到】
: 这个用什么发电是电厂根据什么决定的？
|
