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Old 09-04-2019, 09:21 AM   #21
rumatt
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Originally Posted by kognito View Post
Someone must be working on trailers where the wheels are also generators. You can't get something from nothing, but if your trailer wheels can help charge the batteries it would have to extend the range.
I don't see how that helps. The vehicles wheels can regen on the downhills.

Now, fill that trailer with batteries and it's a different story

How about trailer sharing? Leave your dead tralier and pickup a charged one?
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Old 09-04-2019, 10:05 AM   #22
Nick M3
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Originally Posted by rumatt View Post
I don't see how that helps. The vehicles wheels can regen on the downhills.

Now, fill that trailer with batteries and it's a different story

How about trailer sharing? Leave your dead tralier and pickup a charged one?
Given the absolutely rigid enforcement of driver seat time / down time these days (automatic logbooks), you don't really even need trailer exchanges. You just need to figure out how to get truck endurance to the point where they can cover the duty period. They are only actually allowed 11 hours of driving in a 24 hour day. (14 hour duty period, allowing for short breaks, 10 hour rest period.)

So you could cover a huge share of the usage simply by offering 11 hours of use (with margin), and a 10 hour charge time. That's not a small ask, but I'd have to imagine that it's doable.
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Old 09-04-2019, 10:13 AM   #23
kognito
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53 foot long, 8.5 foot wide trailer, could put a lot of solar panels on the trailer roof
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Old 09-04-2019, 10:53 AM   #24
Nick M3
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53 foot long, 8.5 foot wide trailer, could put a lot of solar panels on the trailer roof
In ideal conditions, that might actually be enough to sustain cruise. Would be interesting to see the math of diverting to the sunbelt vs. taking the direct route for cross country trips.
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Old 09-04-2019, 05:34 PM   #25
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Originally Posted by rumatt View Post
Is there a way to filter by charging speed on that site?

I'm finding a lot of (what I believe to be) level 2 chargers, and I don't see that as useful except for overnight charging. I'm not sitting in my car outside some dudes house for 6 hours while my car charges.
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Originally Posted by JST View Post
Yes, if you click on the hamburger menu on the upper left, there's a "Filter" field, and you can filter by specific charger type--Tesla, Supercharger, J1772, CHAdeMO, SAE/CCS, etc. You can select as many of those as you want to include.
Plugshare also color-codes the chargers. Green are L2, Orange are L3. L2 are AC and basically good for overnight charges (at hotels on a road trip). L3 are DC and are fast chargers -- although the speed will vary depending on the output and the car.

You'd have to click on the charger to see details on a the kW output though. Generally speaking:

- L2 chargers (regardless of plug type) -- assume 7kW max output. Some might be more
- CHAdeMO -- most of the current ones out there are capped at 50kW. Some 25 and a few 100kWs are out there
- SAE/CCS -- Most of these are either 75 or 125kW. But Electrify America has included some 350kW chargers out there already...
- Superchargers -- These are either 72kW ("urban" style) or 120kW. Tesla started rolling out the 250kW Superchargers over the summer -- but very few locations so far. I'd expect most of the 120kW locations to eventually be updated to 250 over the next couple years...

Also, if you create a plugshare account, it will automatically filter for your car (and you can always play with the filters too)...
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