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Politics : Politics of Energy -- Ignore unavailable to you. Want to Upgrade?

To: Maurice Winn who wrote (70230)	5/26/2016 4:30:56 PM
From: TimF	Read Replies (3) \| Respond to of 86350

If half the cars on the road are electric (which isn't going to happen any time soon, esp. if your not counting plug-in hybrids but only pure electrics), then having quick batter change infrastructure could make sense. It would require a redesign of cars, - Your not going to replace this cleantechnica.com or this insideevs.com in 7 seconds, or 7 minutes I think, maybe 70 minutes. - but current electric cars are such a small fraction of the existing stock of cars that there wouldn't be a huge problem with current inventory, the few with pure electrics could just rely on chargers. That would be one reason you would still want chargers to be common if your going to have a lot of electric cars. The other is that that its cheaper to put one in place. In high demand areas (cities and heavily trafficked routes, esp. the cities where space is at a premium) a quick batter swap setup could be supported by the demand. In out of the way places not so much. Even for redesigned cars I'm skeptical about 7 second (and maybe 70 second) swaps because the batteries needed for a decent range pure electric are massive and bulky. Its not on good sized battery, its batteries taking a noticeable fraction of the total cars space. I supposed if quick change was common you could go with lower range, because you could "fill up" quickly, but there is a bit of a chicken and egg problem there, the cars are not going to be redesigned to use a single module battery pack with less range, so that they can use 7 (or 30 or whatever) second replacement until such change setups are reasonably common.