Battery based electric vehicles of today and tomorrow.

goeduck · Jul 24, 2021

Gale Hawkins said:
Yes
It is a pain however because cables are only 20 ft long so every 40 ft you have to disconnect and connect to the next one up the line.

Are the EV cables slinky type where the snap back to the next driver? I would like to see a video. Crazy.

Gale Hawkins · Jul 24, 2021

goeduck said:
Are the EV cables slinky type where the snap back to the next driver? I would like to see a video. Crazy.

Maybe they're just in the parking lot after all

3930dave · Jul 25, 2021

Jchonline said:
You aren’t considering off grid applications.

Well said, all of this post of yours.

You'd have no way of knowing it, but you are Preaching to the Choir.

Late '80s, I worked for a company that designed and built PV production equipment. Our major clients were in India, and China - even back then, they wanted to own their own PV supply chain, top to bottom, but most importantly, their own energy production. I've been following HomePower for about that long too.

PV energy has come a very long way since then, and I welcome it - as one option in the energy toolbox.

Remote area, high line-in cost (as you personally described) has always been a top reason for going PV. Cost efficiency is now driving it into broader applications.

For many people, the grid is kinda like being a tiny kid with two parents - they are just "there", and what they do day-to-day and the fact that one day they won't be there, never crosses your mind...

I lobbed in a softball with my recent post, and you knocked out at least a 2-base run with it.......... And, that was exactly where I was trying to go with my point....... The grid has more vulnerabilities than most people realize.

I don't think it was in this thread, but ultrarunner has posted about surgeons coming up to him at the hospital he engineers for, asking for advice. They were wealthy enough to afford multiple Teslas (only) at home, and large PV arrays on their expensive houses.

What they didn't know (it obviously was not an issue of affordability), was that the grid-tied arrays they liked to gloat about not costing them anything to drive with could be set up in Island mode.

When Cali did the lengthy preemptive Safety Shutdowns, these surgeons had Teslas sitting in their driveways and large PV arrays on their mansions, but no (turn-key) way to charge the vehicle.

Advance knowledge - presents opportunity for better personal outcomes.

Rgds, D.

Jchonline · Jul 25, 2021

3930dave said:
Well said, all of this post of yours.

You'd have no way of knowing it, but you are Preaching to the Choir.

Late '80s, I worked for a company that designed and built PV production equipment. Our major clients were in India, and China - even back then, they wanted to own their own PV supply chain, top to bottom, but most importantly, their own energy production. I've been following HomePower for about that long too.

PV energy has come a very long way since then, and I welcome it - as one option in the energy toolbox.

Remote area, high line-in cost (as you personally described) has always been a top reason for going PV. Cost efficiency is now driving it into broader applications.

For many people, the grid is kinda like being a tiny kid with two parents - they are just "there", and what they do day-to-day and the fact that one day they won't be there, never crosses your mind...

I lobbed in a softball with my recent post, and you knocked out at least a 2-base run with it.......... And, that was exactly where I was trying to go with my point....... The grid has more vulnerabilities than most people realize.

I don't think it was in this thread, but ultrarunner has posted about surgeons coming up to him at the hospital he engineers for, asking for advice. They were wealthy enough to afford multiple Teslas (only) at home, and large PV arrays on their expensive houses.

What they didn't know (it obviously was not an issue of affordability), was that the grid-tied arrays they liked to gloat about not costing them anything to drive with could be set up in Island mode.

When Cali did the lengthy preemptive Safety Shutdowns, these surgeons had Teslas sitting in their driveways and large PV arrays on their mansions, but no (turn-key) way to charge the vehicle.

Advance knowledge - presents opportunity for better personal outcomes.

Rgds, D.

Sometimes a little knowledge is a bad thing. Just because they have years of medical training it in no way means they understand other subjects to the same degree.
The electric company will not easily let go of our dependency on them. I wonder if anyone’s electric co allows Island mode?

Jchonline · Jul 25, 2021

Found this new potential battery tech.

3930dave · Jul 25, 2021

Jchonline said:
The electric company will not easily let go of our dependency on them. I wonder if anyone’s electric co allows Island mode ?

I don't install PV systems commercially, but would like to think that as long as the installation is up to electrical code, and the Island capable Inverters have the correct UL etc approvals, it should be a go.

That said, I've learned to never underestimate govt's capacity to generate new crippling legislation. In Cali, it might be years and $$$$ just to get battery pack approved.

Grid-tie+Island Mode should be OK with any enlightened utility. It keeps a resident feeding power into the grid when things are normally operating, and allows them emergency (non ICE) backup when the grid is down.

That ^ keeps a citizen about where many utilities would like them to be today, and the benefit to the homeowner is that they only Have To size the battery pack for short-term emergencies, rather than continuous off-grid operation. You already know how much money that takes

.

Rgds, D.

cqaigy2 · Jul 25, 2021

Jchonline said:
Found this new potential battery tech.

I swear i drove by "teardrop" camping trail, and saw 4 of those on the top trailing part of it. It caught my attention as it was not a flat shape, but followed the slight curve of the roof.

Gale Hawkins · Jul 25, 2021

Jchonline said:
Found this new potential battery tech.

It is simply amazing what will be out in the next 10 years. Over the years the light bulb went off that science fiction is not fiction at all but it is just a picture of future reality.

Grumpycat · Jul 25, 2021

Jchonline said:
Show me some math and a implementation plan for this please. You must know way more about PV systems than I do!

I would like to see exactly what type of system you ”think” you can put in for $10k (please include array, inverter, and storage if you expect to charge at night).