Thread: Interesting article on BMW's transition to EV .

Originally Posted by Arapiles

Yes, but there's a range extender version too.

I still think Hydrogen will be the range extension we all might like once Korea and Japan get to the numbers they are planning on. I see Toyota has a lease plan for electric cars in US and Japan 2018 model and "By 2025, Toyota now says, it aims to have sold 4.5 million or more hybrids and plug-in hybrid vehicles, and 1 million battery-electric and fuel-cell cars. That’s approximately five years earlier than the company was predicting as recently as December 2017. Those numbers would mean that roughly half of Toyota’s global sales would be of electrified models." Link

Still hoping a solar pannel on my roof rack, solar hydrogen generation unit, hydrogen fuel cell and electric motor could make my disco run for free one day

Originally Posted by NavyDiver

Still hoping a solar pannel on my roof rack, solar hydrogen generation unit, hydrogen fuel cell and electric motor could make my disco run for free one day

Assuming the disco roof area is 2m x 2m = 4m^2. A 30% efficient solar panel with 700 W/m2 insolation = 210W x 4m^2 = 840 Watts from your roof. But lets be generous and assume your at low latitude and its very sunny so we get 1kW from your roof. A typical battery capacity for a small, light EV is 75kWh so it would take 75 hours continuous to charge. But you only get that 1kW during 8 hours of the day at best so it would take three times longer than that so 75 hours x 3 = 225 hours = 9 days for a charge. And that's being generous :-)

500 km, wait 9 days, 500 km, wait 9 days ..... loop :-)

Mike

Originally Posted by speleomike

Assuming the disco roof area is 2m x 2m = 4m^2. A 30% efficient solar panel with 700 W/m2 insolation = 210W x 4m^2 = 840 Watts from your roof. But lets be generous and assume your at low latitude and its very sunny so we get 1kW from your roof. A typical battery capacity for a small, light EV is 75kWh so it would take 75 hours continuous to charge. But you only get that 1kW during 8 hours of the day at best so it would take three times longer than that so 75 hours x 3 = 225 hours = 9 days for a charge. And that's being generous :-)

500 km, wait 9 days, 500 km, wait 9 days ..... loop :-)

Mike

My EV Landy runs for free. Done 8200 km so far , daily driver.
The idea is to put your solar panels on the house, not on the car .

Solar goes into the grid during the day for $0.80 FIT, plug it at night any buy it back for $0.28c per kwh . stupid to do it any other way really.

Originally Posted by NavyDiver

Out running and had a little BMW glide past me. Never seen one like it before Only a short range I note.

BMW i3 : Introduction

Have you checked carsales.com.au? Last time I checked there were several. But the Hyundai Kona EV and Nissan Leaf are better value for money. There is also a little Mitsui EV.

Er doesn't this article ignore the hundreds of individual batteries in the 500Kg to 800Kg battery pack which have to be absolutely protected from water entry and physical damage.
if one or a number of batteries fail the performance is reduced.
if one battery self destructs as has happened quite a bit in China with Nio and Tesla then you lose the car.
So shouldn't each battery be considered an individual part?

Regards Philip A

I could also point out that my 110 at 640,000km, the only engine repairs on the moving parts of the engine have been four repairs to the starter and another three to the alternator.

Lets compare that to the 400KK Tesla which has required 2 battery packs in that mileage at what $25,000 each.
I really don't think the enthusiasts for EVs can just forget about the cost and vulnerability of battery packs which are after all an integral part of the car.
Regards Philip A

Originally Posted by goingbush

My EV Landy runs for free. Done 8200 km so far , daily driver.
The idea is to put your solar panels on the house, not on the car .

Solar goes into the grid during the day for $0.80 FIT, plug it at night any buy it back for $0.28c per kwh . stupid to do it any other way really.

Love to have your FIT. 9.9 to 14cents in Vic now. Hang on to yours mate. At work I just use 99% of my solar. Wish I could at home. Free cooling in summer is nice.

a small Hydrogen plant is still to expensive Once they scale to a Disco size and my price point ( tight arse me )

Came across this story that basically says BMW cant sell EV's in Europe.....

https://www.carsales.com.au/editoria...salesc.8318325

Regards,
Scott.