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The easier math is this. On an average day, you can charge about 30 miles of charge per1000 watts of panels in good weather for a regular ev (not the cybertrash). But that is well placed panels that are going from sunrise to sunset. You didn't really start yours until 11am? I mean I looked at :15 and you were setting your panels out in the shade and it was clearly daylight already. 30miles per 1000 watts per day.

those 1.5 solorpanels are worthless and those 7 watt are the same

Very clever thank you so much.

just go to an online voltage drop calculator. It will tell you all you need to know.

Because that cheap, high frequency, transformerless inverter offers no galvanic isolation between its DC boost stage and its AC output, one day you will fry your EV's onboard charger and will void your EV's warranty. If you want to safely charge your EV with solar, you should be using a low frequency, transformer based inverter.

25-30 Miles is my guess @3:00

Without calculations I was expecting 60 panels ~400-450W. So power range of 24-27kWp. Later I've checked and Cybertruck have ~123kWh battery - what should be charged in roughly 4.5-5.1 hours at "full sun".

I'm pretty sure the math would cut the number of needed panels in around half, at least nearly with 700w panels. The issue is the startup cost, The higher wattage panels you get the less panels you'll actually need which means you can fit more that accomplish more in less space. But also those same panels cost more making it hard for many to justify buying the better ones when they can barely afford the average 300ish watt panels from Amazon or what have you as is. Regardless I would be interested in seeing the difference on a diy settup using a few 700 watt panels In the same ground configuration or even leaving the truck bed on the cyber truck open and letting it charge through at least one of them while you're driving around to see if it makes a good dent or not. Regardless awesome video, the more information people get on these types of situations and setups the better informed they can be about making a decision.

Anyone except a moron thinks.... a lot, obviously.

I am adding this comment because I am not sure if the online calculator is clear enough for someone without technical background to fully understand it. The calculator is simply showing that one needs to use an inverter with ten 360-watt panels for 4.2 hours to add 30 miles to the Cyber Truck or 12KWH (0.4 KWH/mile * 30 miles). However, the calculator doesn't use KWH unit and is not aware of any battery storage (KWH). For example, you mentioned that you have 4KWH+4KWH of battery storage. So, "ideally", one can add 30 miles to the Cyber Truck much under 4.2 hours if the batteries are charged and the inverter is rated for the output current. The calculator is a good start but needs more parameters (e.g., battery KWH and amount of charge level). Average driver uses 30-50 miles per day and I have looked at the KWH numbers to get those miles and it requires a very small solar system (i.e., 10KWH for battery storage and 5KW rated inverter).

You should mention that not all EVs and EVSEs can change their amps. So if you use a 40 AMP EVSE with say a Bolt EUV, it would not work with this setup. I own a Bolt and ID4 and had to buy a EVSE that I could change the amps to charge at family and friends places. Great Video!

Obviously if you do a lot of driving, you will need a lot of solar panels to charge your Tesla. Or a grid connection. Now for a word problem in mathematics. Calculate going across the US in your Tesla using nothing but the solar system it can carry along. How long would the trip take?

This is good to show for the sake of reality. I get asked all the time why Tesla doesn't make their roofs out of solar panels. People who have never used solar don't really understand the amount of panels and consistent sun it takes. That being said, whole home solar is very affordable these days and people also do not understand how quickly a solar system pays for itself when you're offsetting the cost of gasoline or diesel fuel in a vehicle. Residential solar paired with an EV or two is a very good combination for personal finances.

We really need a DC to DC charging option for EV's the Conversion of DC solar input to AC battery output, back to DC battery is also inefficient.

In reality, you could build a 10kW solar charging array for about $10-15k DIY and that would be basically perfect for 80-120 miles per day depending on the vehicle.

Question: I have the Delta Mini with 300w solar input max. If I connect two EF 160W panels that are within the voltage (& amps) but the equated rated wattage being 320w, will the mini still accept the power flow, but limit to receiving 300w or will it not work entirely at all?

So $9000 solar system to offset driving in a tesla truck For 18 miles. Or one gallon a gas in any comparable truck for 3$ a day. It will take 3000 days to pay for the panels. Sounds like a great eco friendly option. Lol.

for all that utility im suprised they did not add a mppt in the bed for direct solar. and they do have bidirectional..

This test shows how using 3000 watts of rated solar panels only outputs 1980 watts in real world.

You can charge a EV with solar cells, but is it practical? I have 3 solar cells on my RV and that just charges the house batteries to run a gas Ref, lights and 2 computers and that only last for a day. If no sun the next day, it is generator time.

My panels are very cool so...

Great video man.

MY model 3 charges at 8 kw max (32amp) so i expect it to be a lot. Something like 30 300w panels (probably more due to losses).

Did you get a Cybertruck?

Seems like we’re miles away from solar car charging being a feasible option. No pun intended.

$0.12/kwh... hilarious... here on No. Cal PGE burns the state down and charges up to $0 53/kwh. Thanks Gavin...

Anything to show off the cybertruck lol

I watched a video of a guy in the middle of the desert charging his Tesla with a massive 100w array during a road trip. He had to charge it to 100% to get to the nearest charging station. It took him nearly 5 days (he had camping gear)! Maybe he was just using 110v to charge the vehicle?

Nice test, good info.

An intelligent man and yet can't see the wholly impossible nature of sustainably running a behomoth like a cybertruck. I wonder what proportion of the world could live this way even only charging a small, city style ev, when you factor in the resources for the car, the panels, the Delta. Really, unless we all think globally, this is a losing battle. If one has a very, very good reason to drive a small-bungalow-on-wheels like the cybertruck, ok, but otherwise this electric "revolution" will be as dirty as the fossil one. Every home will resemble a small power station and the overall resource use and pollution will be similar.

Here is my Theory, you did your Tests and its a great Explanation which made me think more about the "Wattage Loss" going into the Charge Controller, your "12AWG" wiring you lost 90.4 watts just from wire length and 32.7 watts from 10AWG, what if you reversed the setup, going from the Array with say under 10ft directly to charge controller, then have Inverter power line to be the 100' length pulling from stored capacity over to the home/off-grid cabin, then voltage drop or "Wattage Loss" would be reduced dramatically giving you better charging capabilities utilizing the most out of your solar panels. My Theory is if the Stored Energy in the batteries has voltage drop from the inverter wires to the house VS Array wires to Charge Controller/Batteries in the home, its just less power being taken from Stored Capacity and Technically the AH Stored is never lost from "Voltage Drop/Wattage-Loss" like it would be Entirely lost from the Array wires to Charge Controller. Let me know what you think, or possibly another Test lol

its kind of crazy how much the capacity of EV batteries is. I would've thought 3kw would do more but that's the sad reality.

How many people would have this kind of house and yard ?

*@**2:16**: Uhhh, It's not 30 Amps at 220 Volts is it Sir ? It's 16.666 Amps @ 240 Volts !!! THe calculation for this is Divide the number of rated output in WATTs by the amount of Voltage, which will give you the rated Amps. Therefore, 4000/240 = 16.6666666 AMPS ! NOT 30 AMPS ! ABSOLUTE SMOKE & MIRRORS !!!! Your net result is INCORRECT Sir, because you based it on an output margin of 32 Amps from The DP3 ! You putup a graphic demonstrating a calculation based on 17 @ 32 Amps = 233 Volts !!! YOU'RE CHEATING !!! Do you think we are clued out, or are you just hoping you can sneak this one by us ?*

There are some losses when going PV -> battery then battery -> inverter. How much less overhead would there be if your battery was pre-charged to N% and the car was directly charged at a rate similar to what the panels would generate? The battery would serve as a volltage buffer for clouds/etc.

Omg, just get a vehicle where you just pour a flamable liquid down a hole. Waay too technical for most people.

How much was your setup?brake it down

Per your Cybertruck calculation: 30m/day * 365 days = 11,000 miles for a 3.57kW system. For actual results, I get 10.0 MWh per year from my roof system (7.62 kW rated, eastern WA, 4.4 solar hours, ~83%). That will give me about 20,000 miles per year at 0.48 kWh/mile in my F150 Lightning. (F150 Lightning is not on your list in the calculator, consider adding!)

When solar panels are good enough to cover the car itself and be capable of powering the car entirely, then maybe I’ll be interested in one.

Ya, that’s pretty garbage.

Holy cow, that’s a lot more panels that I thought! Great video.

dude sick truck

You need to test this in Los Angeles

Damn, cyber truck! Jealous!!

Is it acceptable to simply choose the lithium/lifepo04 setting on two Victron 100/30 charge controllers connected to 400 watts of panels each and both connected to a busbar with 6 awg short cable going to a 12v 300ah LiFeP04 battery, 200 amp?

Love the videos but hate the truck. That is one ugly truck.

Cybertruck and a Delta Pro 3. You the man. I really enjoy your videos. Keep them coming and thanks for sharing.

Smart putting the cardboard insulation. 👍

👋😎

great, another fucking spam link that just farms for your information, thanks, jerk.