pretty OT: boats...

[ke...@kjwdesigns.com]

On Saturday, 26 September 2020 at 13:15:41 UTC-7, dcaster@krl.org wrote:
....
> I was thinking a lot more power. Say 2 kw peak power and parked at work for 8.5 hours. So maybe 8 kwh. or 10 times your estimate. So maybe a $600 a year Not really worth while at this time. Maybe reasonable ten years from now.

2kW peak might need ~140 sq feet of panels. That\'s much more than the available space on a car. Add in the loss due to unfavourable aspect most of the time or shading due to clouds etc and you will need even more area.

The weight of the panels and the compromises to aerodynamics may reduce efficiency to the point that they are a net loss.

Why do you say it would have to be flexible panels?

Most cars are not comprised of flat surfaces.

kw

 

[Bill Sloman]

On Sunday, September 27, 2020 at 2:43:31 AM UTC+10, dcaster@krl.org wrote:

On Saturday, September 26, 2020 at 9:24:18 AM UTC-4, Bill Sloman wrote:
On Saturday, September 26, 2020 at 10:38:38 PM UTC+10, dca...@krl.org wrote:
On Tuesday, September 15, 2020 at 9:24:03 PM UTC-4, Ricketty C wrote:
On Tuesday, September 15, 2020 at 6:04:55 PM UTC-4, ke...@kjwdesigns.com wrote:
On Monday, 14 September 2020 at 23:44:12 UTC-7, Ricketty C wrote:

snip

Oh, the cars can certainly be made to feed AC back into the line, but it\'s not so simple as putting boards in the cars.

https://en.wikipedia.org/wiki/Vehicle-to-grid

There are numerous safety issues involved in addition to various regulatory issues. Try connecting a solar generation capability that isn\'t 100% hard wired. It won\'t be approved for you to throw the switch. not

Obviously. But this is something that would help the grid, and they\'d pay the car owner for the service.

Bottom line is once EV owners realize how expensive batteries are to replace they will never consider burning them up with this sort of plan.

Until they realise how much the grid is likely to pay for the use of the battery in this way.

One idea _I have not seen discussed is putting some solar cells on the car roofs. That could either extend the range of the car or reduce the amount of batteries needed.

https://en.wikipedia.org/wiki/World_Solar_Challenge

It goes back to 1987. Dutch teams have won it quite frequently so we heard about it from time to time when we lived in the Netherlands. It\'s a totally impractical form of transport, but an exceptionally good educational opportunity.

Airplane wings offer more surface area.

https://en.wikipedia.org/wiki/Solar_Impulse

There seem to have been a lot of discussions that went on when Dan wasn\'t paying attention.

I forgot that every thing has to be spelled out for Bill. I assume the rest of the readers of this newsgroup were able to understand what I was suggesting.

Sure. Dan was suggesting that he doesn\'t have much grasp of reality. Nothing new there.

--
Bill Sloman, Sydney

 

[Bill Sloman]

On Sunday, September 27, 2020 at 4:32:50 AM UTC+10, Flyguy wrote:

On Saturday, September 26, 2020 at 9:43:31 AM UTC-7, dca...@krl.org wrote:
On Saturday, September 26, 2020 at 9:24:18 AM UTC-4, Bill Sloman wrote:
On Saturday, September 26, 2020 at 10:38:38 PM UTC+10, dca...@krl.org wrote:
On Tuesday, September 15, 2020 at 9:24:03 PM UTC-4, Ricketty C wrote:
On Tuesday, September 15, 2020 at 6:04:55 PM UTC-4, ke...@kjwdesigns.com wrote:
On Monday, 14 September 2020 at 23:44:12 UTC-7, Ricketty C wrote:

snip

Oh, the cars can certainly be made to feed AC back into the line, but it\'s not so simple as putting boards in the cars.

https://en.wikipedia.org/wiki/Vehicle-to-grid

There are numerous safety issues involved in addition to various regulatory issues. Try connecting a solar generation capability that isn\'t 100% hard wired. It won\'t be approved for you to throw the switch. not

Obviously. But this is something that would help the grid, and they\'d pay the car owner for the service.

Bottom line is once EV owners realize how expensive batteries are to replace they will never consider burning them up with this sort of plan..

Until they realise how much the grid is likely to pay for the use of the battery in this way.

One idea _I have not seen discussed is putting some solar cells on the car roofs. That could either extend the range of the car or reduce the amount of batteries needed.

https://en.wikipedia.org/wiki/World_Solar_Challenge

It goes back to 1987. Dutch teams have won it quite frequently so we heard about it from time to time when we lived in the Netherlands. It\'s a totally impractical form of transport, but an exceptionally good educational opportunity.

Airplane wings offer more surface area.

https://en.wikipedia.org/wiki/Solar_Impulse

There seem to have been a lot of discussions that went on when Dan wasn\'t paying attention.

I forgot that every thing has to be spelled out for Bill. I assume the rest of the readers of this newsgroup were able to understand what I was suggesting.

Adding solar panels to a car\'s roof MIGHT produce 0.8 KWh per day (not much if you park in a parking garage or if buildings block the sunlight). That will get you about 2.3 mi for Tesla Model 3 at a cost of around $2,000 to $3,000 because you would have to use flexible modules. And most of the time you would not need it because you can recharge at night.

Even Flyguy can spell it out for Dan. And is stupid enough to waste the time to do it.

--
Bill Sloman, Sydney