Breaking News
Comments
Oldest First | Newest First | Threaded View
Page 1 / 5   >   >>
junko.yoshida
User Rank
Author
State-by-state analysis
junko.yoshida   8/20/2013 1:09:50 PM
NO RATINGS
I think many of us might have already known the answer...but Climate Centra's state-by-state analysis gives us a clear picture on the degree of greenenss of your EV depends on the electricity grid in you state -- how the energy is generated...it's all interconnected.

pinhead1
User Rank
Author
Re: State-by-state analysis
pinhead1   8/20/2013 1:33:16 PM
NO RATINGS
It's pretty interesting, but doesn't really lead to a clear conclusion.  It does seem like a conventional hybrid is a safe bet in any state, although it may not be optimal in every state.

chanj0
User Rank
Author
Green?
chanj0   8/20/2013 1:34:37 PM
NO RATINGS
Green sounds compelling. We assimilate green to vegetable, trees and forest. I can understand "Green" is chosen to be one of the market terms in promoting hybrid and EV. IMO, the movement indeed protect the environment regionally. To be precise, it lows the carbon dioxide emission in your neighborhood. You may feel the air around you fresher if there are enough people driving in your community.

Unfortunately, the reality is we have to see a bigger picture when we are trying to tackle a global situation. Just as the article said, we could make a zero emission vehicle; yet, the manufacturing process emits higher amount of CO2. The report even suggests, in some models, the CO2 emission from operation may not offset that from manufacturing.

What's a better measure to the environment friendliess of any vehicle? Carbon footprint has been one of the most talkable measures. How do we quantify it? What can be done to inform consumers how much carbon footprint the vehicle is?

Duane Benson
User Rank
Author
It's never easy
Duane Benson   8/20/2013 1:51:02 PM
Unfortunately, any advantages of one approach over the other are subtle enough to be difficult to discern. Add that the issue is highly politicized and it becomes even more difficult to tell.

The real issue, in my opinion, is that gasoline holds quite a lot of potential energy by weight and volume. It's got a very high energy density. It's very easy to extract a significant amount of that energy as well. Until there is some way of collecting, storing and using clean and inexpensive energy with roughly the same potential by weight and volume, the economics will be very difficult to justify.

The problem, of course, is that, while it's easy to extract the energy from gasoline, it's not possible to put it back. It's a one way trip into the atmosphere.

As a society, I think we need to be exploring all electric and hybrid vehicles as well as other types of vehicles, but I don't see a solid answer until we can solve the energy density challenge.

junko.yoshida
User Rank
Author
Re: State-by-state analysis
junko.yoshida   8/20/2013 2:24:16 PM
NO RATINGS
@pinhead, true. There is no single clear, easy answer. And yet, I was actually pleasantly surprised to see how far we have come, in some states that have electrical grids with substantial amounts of hydro, nuclear, and wind power, essentially producing no carbon emissions. 

That is definitely changing the picture in some states. 

geekmaster
User Rank
Author
Much greener when using your own solar
geekmaster   8/20/2013 3:00:05 PM
NO RATINGS
I guess EVs are much greener when you charge them with your own solar generated energy such as solar panels. That could be an option to make it greenr. The only problem is that most EV cars or EV hybrid cars offered in the US do not offer the range many people drive.

rick merritt
User Rank
Author
Re: It's never easy
rick merritt   8/20/2013 3:07:25 PM
NO RATINGS
@Duane: Good analysis of Junko's good analysis.

We need to keep moving down this road with some faith that it gets greener and more economically sound as we progress.

junko.yoshida
User Rank
Author
Re: Green?
junko.yoshida   8/20/2013 3:13:22 PM
NO RATINGS
Chanj0, the easiest way to communicate with consumers about carbon footprint of a car is through the mileage of a car, but naturally, there are other factors, beyond tailpipe CO2, that need to be considered. 

As a starter, here's something we can all work with:

http://www.fueleconomy.gov/feg/climate.shtml

junko.yoshida
User Rank
Author
Re: Much greener when using your own solar
junko.yoshida   8/20/2013 3:21:25 PM
NO RATINGS
GoGoGeek, the idea of preserving and storing energy -- generated by solar panels of your home, for example -- in your own EV has been often discussed in Japan:

http://www.eetimes.com/document.asp?doc_id=1264342&page_number=1

mike_m
User Rank
Author
Re: State-by-state analysis
mike_m   8/20/2013 7:32:33 PM
NO RATINGS
Unfortunately this report does not factor in other important aspects such as the large pull that the gasoline lobbyist have on our government.

Even in states where electrics appear to have an advantage today, well tomorrow may bring a different story especially when revenues of gas companies may go down in the so called green states.

 

As an example here in Oregon the talk is on taxing electrics heavily due to the fact that the gas tax money is dwindling and money for road repairs that comes directly from gas taxes and such are no longer there.

 One plan is to install sophisticated GPS trackers in EV's which would then record and report the mileage driven via some type of RF link and at the years end the state tax department would then send a tax bill with the dollar amount comparable to what a gas vehicle user would pay at the pump.

As  a result even though we may have a distinct electric advantage today, tomorrow due to lobbyist for the gasoline industry and such I'm afraid that this advantage may dissapear very fast.

 

 Never underestimate the grred of a multi billlion, or is it trillion, dollar industrys pull on maintaining profits in double digit numbers.

Page 1 / 5   >   >>


Radio
LATEST ARCHIVED BROADCAST

What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.

Brought to you by:

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Like Us on Facebook
Special Video Section
With design sizes expected to increase by 5X through 2020, ...
01:48
Linear Technology’s LT8330 and LT8331, two Low Quiescent ...
The quality and reliability of Mill-Max's two-piece ...
LED lighting is an important feature in today’s and future ...
05:27
The LT8602 has two high voltage buck regulators with an ...
05:18
Silego Technology’s highly versatile Mixed-signal GreenPAK ...
The quality and reliability of Mill-Max's two-piece ...
01:34
Why the multicopter? It has every thing in it. 58 of ...
Security is important in all parts of the IoT chain, ...
Infineon explains their philosophy and why the multicopter ...
The LTC4282 Hot SwapTM controller allows a board to be ...
This video highlights the Zynq® UltraScale+™ MPSoC, and sho...
Homeowners may soon be able to store the energy generated ...
The LTC®6363 is a low power, low noise, fully differential ...
See the Virtex® UltraScale+™ FPGA with 32.75G backplane ...
Vincent Ching, applications engineer at Avago Technologies, ...
The LT®6375 is a unity-gain difference amplifier which ...
The LTC®4015 is a complete synchronous buck controller/ ...
10:35
The LTC®2983 measures a wide variety of temperature sensors ...
The LTC®3886 is a dual PolyPhase DC/DC synchronous ...