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> electric 914 kit guy
spare time toys
post Aug 8 2007, 09:20 PM
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hooked on grilling food.
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is this someone from here?

http://www.youtube.com/watch?v=hWPiUd9nMWA...ted&search=
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swl
post Aug 10 2007, 07:37 PM
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PJF,
Good analysis. You might be pushing some of the numbers a little bit but close enough.

The 10-20 million e-cars without a new power plant doesn't pass my personal 'reasonableness' test. They would have to be relying pretty heavily on a model where the cars are all being charged during the night when there is not as much stress on the grid.

Still think Peter has the only really green answer. Put up your own solar panels. Ontario has a pretty good system going. They will give you a 20 year contract to feed power into the grid from solar panels. The $/Kwh is much higher than what we buy electricity for - enough that you can finance the solar setup over the 20 years and it doesn't cost you anything. The thinking is that the cost of building a new power plant is more than buying solar energy from individuals even at an inflated price. Works pretty well since the grid hits it's peak during the daylight hours when the sun is there to produce extra power.

Again though, as much as I'd like to have one I don't think we are ready for large scale adoption of e-cars. Scares me a bit to think of the brake and suspension repercussions of carrying around an extra half ton all the time. Lead Acid will never do the trick well.
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914Mike
post Aug 10 2007, 09:18 PM
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QUOTE(swl @ Aug 10 2007, 06:37 PM) *

PJF,
The 10-20 million e-cars without a new power plant doesn't pass my personal 'reasonableness' test. They would have to be relying pretty heavily on a model where the cars are all being charged during the night when there is not as much stress on the grid.


Exactly, nighttime the plants just coast along, so the is plenty of capacity for lots of slowly charging cars. No one ever factors in the added fuel to keep the plants running at the higher capacity though...

QUOTE(swl @ Aug 10 2007, 06:37 PM) *

PJF,

Still think Peter has the only really green answer. Put up your own solar panels. Ontario has a pretty good system going. They will give you a 20 year contract to feed power into the grid from solar panels. The $/Kwh is much higher than what we buy electricity for - enough that you can finance the solar setup over the 20 years and it doesn't cost you anything. The thinking is that the cost of building a new power plant is more than buying solar energy from individuals even at an inflated price. Works pretty well since the grid hits it's peak during the daylight hours when the sun is there to produce extra power.


CAlifornia currently rebates about 30% of your costs for a solar install. (I got mine in last year when the entire amount came back in a lump sum, I hear now it only comes back to you once you produce power.) With the rebate , the payback time is about 20 years, assuming rates stay the same. (Any increase in rates will shorten the payback time.) We have a 3-tier rate system with the ON-PEAK rate, PART-PEAK rate and OFF-PEAK rates at different times of the day, and weekends and Holidays all OFF-PEAK. (Winter and Summer rates vary also.)
ON-PEAK corresponds to daylight hours when my panels are producing the most, so I sell power during the day at the highest rate, and consume at the lower rates when I'm home.

You can see my solar output @ http://view2.fatspaniel.net/FST/Portal/Sol...dAdminView.html


QUOTE(swl @ Aug 10 2007, 06:37 PM) *

PJF,
Again though, as much as I'd like to have one I don't think we are ready for large scale adoption of e-cars. Scares me a bit to think of the brake and suspension repercussions of carrying around an extra half ton all the time. Lead Acid will never do the trick well.


Purpose built E-Cars can do a LOT better than converted gas cars since they are designed from the git-go to handle the greater mass. Above 3-40 MPH, aerodynamics play a larger and larger part in the amount of energy need to move you, so a small, slippery shape is also a plus, not something you can do anything about on a conversion either. 914 is only so-so with it's cd of 3.18, but better than a bug or a truck! (Small pickups have the advantage though, already designed to carry extra mass and lots of room for batts!)

I have taken a different approach to converting my 914. I looked at the VoltsPorsche kit and decided it was too heavy, and the batteries were mounted too high. I can do without the range for now, so I will be using smaller 12V Gel batts, mounted as low as possible, and in approximately the same locations as the original motor and gas tank mass to try to keep the handling close to what I'm used to. I am only adding 400LBs in the rear and 200 in the front. Trade off is only 20 miles range. When batteries get better, I can always upgrade!

I looked at the ElectroAutomotive kit 10 years ago, and have seen a few conversions since, one thing that decided me was the regen in the AC kit. I drive my 914 with the throttle, and having a DC kit that did not slow the car down on lift just wouldn't work for me! So 22mm front bars and 165LB/in. rear springs should be just right, though I may want to go with a larger anti-sway bar (19mm now).
I have also upgraded the brakes, M in front with Mikey's hubs and V-Kits in the rear. (IMG:style_emoticons/default/beerchug.gif)

(IMG:style_emoticons/default/type.gif) See my progress @ http://www.roadglue.com/forum/showthread.php?t=62 (IMG:style_emoticons/default/welder.gif)
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Posts in this topic
spare time toys   electric 914 kit guy   Aug 8 2007, 09:20 PM
racunniff   is this someone from here? [url=http://www.youtu...   Aug 8 2007, 09:54 PM
lotus_65   you know, it's worth a discussion. but someone...   Aug 9 2007, 07:22 AM
jimtab   you know, it's worth a discussion. but someon...   Aug 9 2007, 07:48 PM
Sparky   $13,415.00!!!! :blink: No...   Aug 9 2007, 09:09 AM
racunniff   $13,415.00!!!! :blink: N...   Aug 9 2007, 10:00 AM
scotty   As I've said before in other threads :) you...   Aug 9 2007, 10:37 AM
PThompson509   [quote name='racunniff' post='933272' date='Aug 9...   Aug 9 2007, 01:02 PM
pjf   I have a vested interest in this as I am trying to...   Aug 9 2007, 05:55 PM
swl   Don't mean to be negative but electric cars wi...   Aug 9 2007, 09:15 PM
pjf   Don't mean to be negative but electric cars w...   Aug 10 2007, 05:28 PM
Vacca Rabite   I think that Electric 914s are way cool, and would...   Aug 9 2007, 10:02 PM
racunniff   I also am building the Electro Automotive AC kit: ...   Aug 9 2007, 11:57 PM
So.Cal.914   I also am building the Electro Automotive AC kit:...   Aug 10 2007, 07:11 PM
racunniff   [quote name='racunniff' post='933535' date='Aug 9...   Aug 10 2007, 07:19 PM
JPB   Until the perfection of fuel cells and super condu...   Aug 10 2007, 05:57 PM
degreeoff   yeah...I must concur with the above....10K minimum...   Aug 10 2007, 06:05 PM
JPB   :trophy: Let 914 wisdom shine!   Aug 10 2007, 06:09 PM
JPB   Hold up here ya high dollar homey, if you doin thi...   Aug 10 2007, 07:34 PM
swl   PJF, Good analysis. You might be pushing some of ...   Aug 10 2007, 07:37 PM
Mike914   PJF, The 10-20 million e-cars without a new power...   Aug 10 2007, 09:18 PM
Bartlett 914   Trade off is only 20 miles range. When batteries...   Aug 11 2007, 09:18 AM
Mike914   [quote name='Mike914' post='933880' date='Aug 10 ...   Aug 11 2007, 09:55 PM
pjf   Thanks SWL. That sounds like one sweet solar pane...   Aug 10 2007, 07:54 PM
scotty   If that 20 mile range is with a 12 second 1/4 mile...   Aug 11 2007, 11:00 AM
Mike914   If that 20 mile range is with a 12 second 1/4 mil...   Aug 11 2007, 09:57 PM


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