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TheMachinewon

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Thanks for that info. Almost every review I've read for consumer grade wind turbines was negative. At least you kids are getting value out of it, lol
Wind Turbine's are a complete waste of time and energy, from small to large. The ROI is to long. Solar is hands down a better producer of power.
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Woodrick

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Ummm all your points have not only been addressed but called out in the OP. Some people create, some are reply guys who got no life so they do what you do.
Great, show me the money. How many miles were added in two days charging?
 
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Great, show me the money. How many miles were added in two days charging?
LOL, are you like this in real life? I doubt it, nobody can function with social skills this poor. It's only on the internet where people can pretend role play as a boss. Seems to be a pattern with you.

Tesla Cybertruck Homemade mobile solar charging panels, Starlink, & other mods on my Cybertruck 1729695430716-i
 

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LOL, are you like this in real life? I doubt it, nobody can function with social skills this poor. It's only on the internet where people can pretend role play as a boss. Seems to be a pattern with you.

Do you mean that in real life that I want to know reality? Absolutely.

As an engineer, I know that there are big issues in doing this. And from all the different threads and posts, it does seem to be pretty obvious that IT DOESN'T WORK.

As I mentioned, in only one instance (and it was for a car, not the truck) has someone been successful with portable solar charging. And it was basically a $20k solution.

So yes, before people spend money on solutions, I do think that it is fair to figure out what reality is.

Is my question such a hard question? Isn't it the question that people are asking? How many miles can I add to my Cybertruck in a day?
 
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Cybertechnical

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Do you mean that in real life that I want to know reality? Absolutely.

As an engineer, I know that there are big issues in doing this. And from all the different threads and posts, it does seem to be pretty obvious that IT DOESN'T WORK.

As I mentioned, in only one instance (and it was for a car, not the truck) has someone been successful with portable solar charging. And it was basically a $20k solution.

So yes, before people spend money on solutions, I do think that it is fair to figure out what reality is.

Is my question such a hard question? Isn't it the question that people are asking? How many miles can I add to my Cybertruck in a day?
?You really are a tool ?
 


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Tesla Cybertruck Homemade mobile solar charging panels, Starlink, & other mods on my Cybertruck 20241024_130542


CIGS panels are here! Did a prelim test today, got 6 miles on a partly cloudy day (although it mostly cleared up after 3pm), which is less than the 12 miles (as calculated) with the other setup using folding panels which had more surface area and was tested on a full sun day.

Still working on a number of things but will do a detailed writeup in the coming weeks. Challenges mentioned weren't hard to overcome, just took a little engineering (real engineering, not internet expert engineering, lol). One thing I will do with the top row panels is run them just past the tonneau applique to create an "awning" and solve the dreaded water intrusion problem!

Final form envisioned (for now at least) is the top row bonded to the roof, 1 panel on the frunk (feeding the low wattage 5521 input on the "solar generator"), and the bottom row of panels mounted to a movable Aluminum panel that will be held just bellow the tonneau. Rolling up the tonneau will expose the bottom row.

MC4 connectors will be removed and replaced with low profile flat wiring, with black trim to clean up the look and seal the edges of the panels which are prone to delamination. Anybody doing this and expecting 10 years of life from the panels will be disappointed. As mentioned in the OP, we gotta calibrate expectations when dealing with solar on vehicles.

The onboard integrated panels should provide ~8 miles/day when finished, and will require zero setup. When boondocking, my plan is to supplement them with panels set up on the ground. I got ~3kW of foldable solar panels that would take up half the bed (folded), and provide ~40 miles/day. Realistically, I would probably need half that for most of my trips.

Turns out controlling everything remotely worked fine. Using the Pecron app with Starlink, and the Tesla app, I could control everything from my phone. Was able to maximize charge rate (3kW) to reduce overhead, monitor state of charge of "solar generator", and turn off inverters when not charging to reduce drain. My use case is boondocking though, so doing it manually is fine for me also. Scheduling the charging during peak hours to balance the inflow/outflow can reduce/eliminate the need for multiple start/stops.

Sidenote: Always a good idea to check your panels for hot spots while in the return window. Easily done with a thermal imager if you have one.
Tesla Cybertruck Homemade mobile solar charging panels, Starlink, & other mods on my Cybertruck 20241024_165359
 

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20241024_130542.jpg


CIGS panels are here! Did a prelim test today, got 6 miles on a partly cloudy day (although it mostly cleared up after 3pm), which is less than the 12 miles (as calculated) with the other setup using folding panels which had more surface area and was tested on a full sun day.

Still working on a number of things but will do a detailed writeup in the coming weeks. Challenges mentioned weren't hard to overcome, just took a little engineering (real engineering, not internet expert engineering, lol). One thing I will do with the top row panels is run them just past the tonneau applique to create an "awning" and solve the dreaded water intrusion problem!

Final form envisioned (for now at least) is the top row bonded to the roof, 1 panel on the frunk (feeding the low wattage 5521 input on the "solar generator"), and the bottom row of panels mounted to a movable Aluminum panel that will be held just bellow the tonneau. Rolling up the tonneau will expose the bottom row.

MC4 connectors will be removed and replaced with low profile flat wiring, with black trim to clean up the look and seal the edges of the panels which are prone to delamination. Anybody doing this and expecting 10 years of life from the panels will be disappointed. As mentioned in the OP, we gotta calibrate expectations when dealing with solar on vehicles.

The onboard integrated panels should provide ~8 miles/day when finished, and will require zero setup. When boondocking, my plan is to supplement them with panels set up on the ground. I got ~3kW of foldable solar panels that would take up half the bed (folded), and provide ~40 miles/day. Realistically, I would probably need half that for most of my trips.

Turns out controlling everything remotely worked fine. Using the Pecron app with Starlink, and the Tesla app, I could control everything from my phone. Was able to maximize charge rate (3kW) to reduce overhead, monitor state of charge of "solar generator", and turn off inverters when not charging to reduce drain. My use case is boondocking though, so doing it manually is fine for me also. Scheduling the charging during peak hours to balance the inflow/outflow can reduce/eliminate the need for multiple start/stops.

Sidenote: Always a good idea to check your panels for hot spots while in the return window. Easily done with a thermal imager if you have one.

Interesting numbers, thanks for the additional information.

What was the state of the Pecron battery before and after the day? Did you start empty, fill it up during the day and then just empty it into the truck at night? The amount of power that you indicated sounded like that.

And the CIGS cells that you are using, you mentioned that they are expensive, and I believe that you mentioned. I'm looking at prices, you mentioned that they are expensive, I'm seeing maybe around $8k for 3kW. Is that in the ballpark?
 

Old_Mil

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This is a very interesting thread for me. I'm considering a Cybertruck as my boondock tow vehicle. The use case is to go somewhere for a week or two, camp, and then go somewhere else, rinse and repeat. I've already converted my Catamaran to electric drive, and use a pair of 3s1p arrays to charge the 48v engine batteries. The conversion works very well for a sailboat, but it would be less efficient for a system that went DC-AC-DC as in this case.

If I did this, I'd be interested in deploying flexible CIGS panels as has been previously mentioned but instead of using a prerolled power station picking out the best of breed Victron solar controllers and inverters and permanently mounting them in the bed of the truck. I might even consider permanently mounting rigid panels above the tonneau cover so that there would be no question of stowing the panels and the battery bank could even charge while driving.

Has anyone done something like this?
 

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This is a very interesting thread for me. I'm considering a Cybertruck as my boondock tow vehicle. The use case is to go somewhere for a week or two, camp, and then go somewhere else, rinse and repeat. I've already converted my Catamaran to electric drive, and use a pair of 3s1p arrays to charge the 48v engine batteries. The conversion works very well for a sailboat, but it would be less efficient for a system that went DC-AC-DC as in this case.

If I did this, I'd be interested in deploying flexible CIGS panels as has been previously mentioned but instead of using a prerolled power station picking out the best of breed Victron solar controllers and inverters and permanently mounting them in the bed of the truck. I might even consider permanently mounting rigid panels above the tonneau cover so that there would be no question of stowing the panels and the battery bank could even charge while driving.

Has anyone done something like this?
The biggest issue is just the amount of battery and power needed to do anything for the truck.
You 48V, if 100AH batteries, while quite sizable, only represents 12 miles to the Cybertruck.
12 miles can be a lot of fun time on the lake, but it isn't much when driving.
 
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Cybertechnical

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That's a cool idea. If I went that route, I'd put some LiPo batts in the under bed storage and mount the charge controller/inverter to the side wall. Your method would save a ton of space (I normally don't use the under bed compartment because my bed often is carrying something and digging it out is a hassle).

Talked to Pecron and they said my inverter was bad and replaced it. The new unit has very little parasitic drain. Bought a 2nd one which can be paired together to provide 240V. Works pretty well. Got it to do 30A @ 240V charging.

Tesla Cybertruck Homemade mobile solar charging panels, Starlink, & other mods on my Cybertruck 20241219_142615


You can do pass through charging so unlike what Woorick says with his usual foolishness, battery size isn't much of a problem. Really you only need enough to act as a buffer.

Still working on my panels. I am now drawing up a rigid CIGS system that can fold out.
 


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You can do pass through charging so unlike what Woorick says with his usual foolishness, battery size isn't much of a problem. Really you only need enough to act as a buffer.

Still working on my panels. I am now drawing up a rigid CIGS system that can fold out.

And my simple ask, can you provide some details of how much charge you were able to get with your pass-through charging?
 

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Has anyone tried feeding current into the 48v bus on the CT to see if the DC-DC is bidirectional?

That could be a way to slowly charge the main pack, even while driving, without needing to plug into the charge connector, and without the inefficient DC-AC conversion. You'd want to get a clamp ammeter onto a main battery cable and connect a CC/CV bench supply to the 48v to check this safely. I assume no liability if anyone tries this lol.
 

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Also here's your solar when you want to get serious:

http://mldevices.com

38% efficiency. Price probably around $100 per watt.
 

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Has anyone tried feeding current into the 48v bus on the CT to see if the DC-DC is bidirectional?

That could be a way to slowly charge the main pack, even while driving, without needing to plug into the charge connector, and without the inefficient DC-AC conversion. You'd want to get a clamp ammeter onto a main battery cable and connect a CC/CV bench supply to the 48v to check this safely. I assume no liability if anyone tries this lol.
I believe that I can definitively say that it won't work. And FYI DC-DC conversion has pretty much the same efficiency that AC-DC or DC-AC inverters do. And with today's inverter, they are all well above 90%, often 97%+. You aren't really losing much.
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