Bluedog225
Texas
- Joined
- Nov 18, 2019
- Messages
- 2,974
I suspect the idea of a carport with solar charging without having to run wire from the house or touch the grid stuff will have some appeal.
Solar to electric vehicle-direct
- Thread starter Bluedog225
- Start date
rustythorn
New Member
most of the telsa drivers i see/know drive like they are in an ICE. i can get my leaf down to 225 Wh/mile but then again i started driving electric 18 years ago on my home built cars/bikes that had very limited range
rustythorn
New Member
this reminds me of tablets/e-readers with cell phone connection. for the past 25+ years we have had hand held devices, some even the same size as cell phones, most more powerful than cell phones with a cell phone connection but yet we can't use them as a cell phone? it is not a lack of tech
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Lt.Dan
Solar Wizard
I can get it down very low if I actually try, Ive seen sub 200wh/mile in the city. I was a hypermiler back in the day. Today, solar=free fuel for me. I don't mind going a little faster.
Nobodybusiness
Collecting the leftovers of the Great Sky Reactor.
I believe the Level 3 Tesla supercharger are DCFC but at probably 400VDC or something.
Maybe if you get a 120s battery ( Little over 100KW) then you would need a Charge controller to charge at 400+ volts.
Also would need a straight DC charger with the ability to talk to the car.
Spitballing but perhaps possible or maybe a future thing.
JeepHammer
Solar Wizard
- Joined
- Nov 15, 2019
- Messages
- 1,149
The issue most people run into is vehicle and panels you own at the same place during daylight hours...
While solar charged DC batteries to EV batteries isn't ideal, it's surprisingly efficient when compared to grid losses overall.
You do indirectly pay for grid losses... Your meter costs cover the losses.
If you research batteries, some work better than others for quick discharge to charge that EV. It's the time frame for quick charge that trips you up.
Battery to battery, you could have all night to do the charge, but that's not guaranteed.
If you research chargers, you find out how much power you actually need to do the job quickly, and like I wrote before, your EV and panels have to be in the same place during peak sun hours.
There ARE direct from panels to EV chargers, but again, charge time is the hangup. Having a field full of panels to do direct fast charge isn't economically feasible.
Right now, with current panel efficiency, and average home consumption, you need about 4X the square footage of living area and a crap load of batteries for no sunlight hours.
Some slide by without this (like me), but my consumption is way less than the 'Average' household. I manage my consumption, and I still need more panels than the square footage of my home...
While solar charged DC batteries to EV batteries isn't ideal, it's surprisingly efficient when compared to grid losses overall.
You do indirectly pay for grid losses... Your meter costs cover the losses.
If you research batteries, some work better than others for quick discharge to charge that EV. It's the time frame for quick charge that trips you up.
Battery to battery, you could have all night to do the charge, but that's not guaranteed.
If you research chargers, you find out how much power you actually need to do the job quickly, and like I wrote before, your EV and panels have to be in the same place during peak sun hours.
There ARE direct from panels to EV chargers, but again, charge time is the hangup. Having a field full of panels to do direct fast charge isn't economically feasible.
Right now, with current panel efficiency, and average home consumption, you need about 4X the square footage of living area and a crap load of batteries for no sunlight hours.
Some slide by without this (like me), but my consumption is way less than the 'Average' household. I manage my consumption, and I still need more panels than the square footage of my home...
Nobodybusiness
Collecting the leftovers of the Great Sky Reactor.
Yea I can see that.
JeepHammer
Solar Wizard
- Joined
- Nov 15, 2019
- Messages
- 1,149
While I have a min-grid (off grid) that produces more power than we use most times, we hesitated a long time getting an EV.
That excess power potential wasn't here until about 2-3 years ago when I rebuilt, and expanded the system.
My wife drove the most, and her car wasn't here all day, so it had to charge off batteries at night, and that would have been a first generation with current battery technology, I never want to the 'Bata' tester that pays full retail... With a car that only goes 100-150 miles between charges.
So last year we bought an EV. Her job offered free charging all day long as a perk.
That was the clincher, I ordered a charger for home, but even traveling 50 miles a day for her work, she still gets about 300 mile range when my lead foot isn't on the throttle pedal.
Until last year, there wasn't a single charge station between home and her work either... now there are two, the second just opened.
Yes, we live off the beaten path, and we like it that way sometimes, other times it takes 10 years to catch up with the rest of the country...
timselectric
If I can do it, you can do it.
- Joined
- Feb 5, 2022
- Messages
- 18,913
My boss offers free charging, too.
Not that much of a perk, since I am self employed. lol
Not that much of a perk, since I am self employed. lol
JeepHammer
Solar Wizard
- Joined
- Nov 15, 2019
- Messages
- 1,149
Perks of being self-employed...
I've been asked why I beat myself getting my own businesses up and running when I could have just got a paycheck job.
I had a hard time explaining that I couldn't sell a job when I was ready to retire or just got an offer I couldn't refuse. I got a lot of blank looks...
