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samotage
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Post Comments - The EV fleet: our future energy storage network


Hey Steve,

The electro transport world in my opinion will be quite different from what we have today, and it could possibly be even better that we could ever imagine.

Much research has shown that the vast majority of trips are less than 30 kilometres, and sizing and pricing battery storage (which is expensive) will mean that we won't size our cars for 4-500 kilometres before empty.

I was thinking about this the other day, and in fact this is for “convenience” as re-fuelling a petrol car is a pain, as you need to

   1. find a petrol station (which are getting rarer and rarer these days) and
   2. stop and fill it with the stinky fuel.

It occurred to me the electro car will be great, I get home, it charges and I'm done.

We don't always use our cars, and mine sit at home almost all the time, while I ride my bike wherever I need to go, and my wife takes the “pram” anywhere within walking distance.

Add solar panels to our roof (which will be going up on the @samotage household soon) and all of a sudden it makes good economic sense (with a bit of management) to use an electro car's battery to power the house when not out and about.

Interestingly I read of a story about a US dude caught in a recent ice storm, which tend to take out the power lines. He used his Prius with an inverter to power his home during the outage!

I rekon the battery swap system you mention is a great idea, though I wonder about the following however I wonder if the car makers could ever standardise? There are so many engineering variable s that go into stuffing batteries into an electro car.

One thing that will happen is that battery technology will get better, and fast charge will become a reality, like the A123 batteries today which can get to 80% of their capacity in around 10 minutes. This brings a new aspect into the the equation, as such a fast charge requires a huge amount of electrical current to “fill up” the battery. What's the answer, I suspect this could well be local and distributed storage, something we've never seen before.

I think cost economics will be the biggest impact on human behaviour. As the price of petrol sky-rockets, people will evaluate their needs vs. wants and make the appropriate decision within the realms of their available cash resources. This could however mean that in the future we all find ourselves riding push-bikes...

Sam.

@samotage

Hi Sam,

Great post mate - perfect length to easily digest your thoughts.

I like this, but wonder whether this may actually work for the EV. Can we really provide power to the grid BUT still have a car that runs when we need it to? I see this as the biggest barrier to reducing the impact our cars have on the environment - because currently we need them to be ready at all times (or at least think we do) and then be able to drive x00's of kilometers at a time.

I like how the www.betterplace.org guys have gone about addressing this issue, with a large infrastructure plan to put in place 'refill stations' (similar to petrol stations) where you can simply install a new, ready to go battery into your car and keep going, 2 minutes later.

What are your thoughts on how we avoid this current trend in human behaviour?

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