Charging an EV from rooftop solar

[DiscoMick]

I thought this was a good discussion and I would share it.
Basically, he says we need about 2kW of rooftop solar to charge an EV.
How Many Solar Panels Do You Need To Charge An Electric Car? (https://www.solarquotes.com.au/blog/charging-electric-cars/)

[DiscoMick]

So why can't we just charge an EV directly from solar panels mounted on the vehicle? Because too many panels would be required to be practical. But it could still work if you went camping and left the vehicle parked for a few days.

The number of solar panels required to power an electric car (https://greentransportation.info/energy-transportation/solar-panel-ev-car.html)

[PhilipA]

Utopia here we come.
what if it is cloudy for a week?
pensioners do not drive during the day? Tell my wife that.

And how do pensioners actually buy an EV at 50k and for that matter solar panels.
Also AFAIK controlled load in NSW is tightly reserved for storage hot water.
It would be an advance to allow use for say battery charging but I reckon that pigs might fly first.

that whole article is just speculative BS written by a true religious convert.

regards Philip A

[DiscoMick]

Solar radiation doesn't stop on cloudy days, it just reduces, so charging takes longer.
There are people already charging their EVs off their solar houses, so it can be done.
If charging in the daytime and you have batteries it's all good. I have also read of people altering their solar setups so the solar directly charges the vehicle during the day.
If at night you need batteries.

[PhilipA]

BTW on the subject of controlled load, the contract that I recently signed increased the tariff by 30%.
I was recently talking to a coal and gas turbine consultant who advised that this is because there is not as much excess coal supplied power now available.
He also told me that the new inter connector between NSW and SA will be paid by all taxpayers,so once again we pay more for the SA stupidity.
on the bright side he is currently working with several investors planning HELE station and Gas stations.
I don't know about you but my panels only give about 5-10% output on cloudy days.
regards Philip A

[goingbush]

Heres a clue . My EV Landy has a 3.3Kw onboard charger,

I have a 5Kw rooftop system, (on the shed not the Landy) given losses etc it puts out 3.5kw on a good day .

Guesstimation It does about 80km per charge & takes 8 hours to charge. So 10km per hour charge rate on a good day .

If I crammed 330W of panel onto the roof of my Landy , in a perfect world with no inverter losses, it would take 80hours to charge - ( 10 days of good sunlight ) , I'd be driving really carefully in Eco mode to stretch that charge out to 150km and thats not practical.




.... but There is a couple touring the world in a motorhome with a solar roof array .

https://scontent-syd2-1.xx.fbcdn.net/v/t1.0-9/41907719_10155911296753269_1473059227160281088_n.j pg?_nc_cat=110&_nc_eui2=AeF6hp0Mhx3NViZWl5zmj9C_DyvO6MbSk73Z18dje aAtUYvdufVNtl1AIDRKXge3-BWtZ-2rY-uataWwETecCW6UoBlW7yzvwqR8ZMl1wT3h5w&_nc_ht=scontent-syd2-1.xx&oh=c2f094a656427cb7827e39e30501e42f&oe=5C433B39


https://scontent-syd2-1.xx.fbcdn.net/v/t1.0-9/41991963_10155911295748269_6330197880615206912_n.j pg?_nc_cat=101&_nc_eui2=AeEpv48B9K5bu2_6Tr8ynq-odKaJMI0v-Pdwp1BFEkLRTjzI7BPgTY3NcKCWhzRcxx52inLiZnRl1ipithb IIpW16zhDaaq2sVmXHeI4zOpcRA&_nc_ht=scontent-syd2-1.xx&oh=bbac204ece11a3a54e5ebb306224403c&oe=5C4A1FD5

[goingbush]

Haven't seen his videos before , the bloke sounds Australian ?? The 'car' is the blue solar EV from the above post.


https://youtu.be/v7fYEplBg4Q

[goingbush]

Mark French, of Marks 4x4 fame drove his Electric Suzuki across the Simpson on Solar alone.

https://scontent-syd2-1.xx.fbcdn.net/v/t1.0-9/38480734_1810342759047506_5653208196068671488_o.jp g?_nc_cat=105&_nc_eui2=AeExnjCrA3yZH33-LITDvf8hwLNm2uv1ItPqXYbMcuT8nmh337_5PDHSweHZq1u3Eg ykb-ba5-XgVotSqg0B3veZsNDn2xBsA6G0_bVRMGhzHg&_nc_ht=scontent-syd2-1.xx&oh=fb882fdca30cbaf57a0b7cb6db1f5416&oe=5C514F1C

https://scontent-syd2-1.xx.fbcdn.net/v/t1.0-9/38446573_1810342625714186_90886494440390656_o.jpg? _nc_cat=104&_nc_eui2=AeFLC52mCWicb6Ymi7RCfrWiDXs1tzVYcLhOVeMaR laeeVeheZgswJ0MTEF84Hpg_lY1OSHSF9XOZ9RJU1hwKLjz9fu IuY4e7Pj1wMZpsoO-zQ&_nc_ht=scontent-syd2-1.xx&oh=9d3d9c3ab0429b5485a8d65a5bccf393&oe=5C4FED9E

https://scontent-syd2-1.xx.fbcdn.net/v/t1.0-9/38494746_1810342362380879_4603336056543117312_o.jp g?_nc_cat=110&_nc_eui2=AeGtVEMUuT_JcmMRjwmdSHXfceyspbL9DXWb76fVe GWdvu-rSEXYCOpnsw34llj2J7mPbxuCav-sAqlEh0r5J_NOkLyBjaSRVYLtAcBbr1v_aQ&_nc_ht=scontent-syd2-1.xx&oh=14675df221c5c46c9250ef976b5281c0&oe=5C510359

[bee utey]

Utopia here we come.
what if it is cloudy for a week?
pensioners do not drive during the day? Tell my wife that.

I'm amazed that pensioners cope at all with things that aren't perfect every day. Some weeks you charge off the grid?


And how do pensioners actually buy an EV at 50k and for that matter solar panels.

Alas poor pensioners, they have so mismanaged their retirement funds that they have to subsist on bread and dripping so they can buy petrol for their decrepit Range Rovers... meanwhile self funded retirees take cruises every year and enjoy themselves to the hilt and also buy stuff that saves them money in the longer term.


Also AFAIK controlled load in NSW is tightly reserved for storage hot water.
It would be an advance to allow use for say battery charging but I reckon that pigs might fly first.

Move your hot water to mop up excess day time solar and you would think that off peak could be repurposed and smoothed by staggering charge starts. I've looked at SA generation charts and every night 200MW of HWS hits the grid all at once at around 11pm, (about 15% of grid load). How stupid is that?


that whole article is just speculative BS written by a true religious convert.

You should then report the post for breaking forum rules... [bigrolf]

[DiscoMick]

Pensioners live on baked beans and dog kibble, don't they?

[PhilipA]

You blokes seem to have no idea about living on 36k per year.
I think your replies are flippantAnd insulting to those who exist on a pension.
I have an SMSF combined with pension and we live Ok but I and anyone in my situation would have no intention of buying a 50 k car.
sshow me the savings. They are just not there.
regards Philip A

[bee utey]

Clearly some pensioners are so poor that they need to give up cars entirely and shift to electric transport to survive, firstly an e-bike then a Gopher. One bloke I knew was still riding his e-bike at 93 because he could ride it up to the door of the premises he needed to visit, cars and public transport were a poor second choice for this sort of task.

As for buying an electric car, of course the right thing to do is wait a few years, then buy a second hand one. At the rate that electric cars are advancing I'd expect a modest range vehicle should be available second hand within 5 years of them hitting the market at a price that won't frighten the most timid old fogey.

[DiscoMick]

I didnt mean to insult pensioners, as I will soon be one.I don't see pensioners as the target market for EVs, so I'm not sure why we're even talking about them.
EVs will go first to urban 'early adopters', I assume. Plenty of people pay $50k for a new car.
There are already used EVs for sale on carsales.com, such as those from Nissan, Mitsubishi and BMW. $30k would buy a quite serviceable one for pottering about. A Mitsubishi EV left me in its dust near the Gold Coast recently. There are also plenty of hybrids from Toyota and Mitsubishi around.

[goingbush]

Hang on !

What about the bloody self funded retirees, not eligible for a pension.

Have to pay Full price for Registration , Full Comp insurance , Private Health funds , No free public transport either . Its not easy beating off the taxman either . Go easy FFS !

[bee utey]

I didnt mean to insult pensioners, as I will soon be one.I don't see pensioners as the target market for EVs, so I'm not sure why we're even talking about them. EVs will go first to urban 'early adopters', I assume. Plenty of people pay $50k for a new car. There are already used EVs for sale on carsales.com, such as those from Nissan, Mitsubishi and BMW. $30k would buy a quite serviceable one for pottering about. A Mitsubishi EV left me in its dust near the Gold Coast recently. There are also plenty of hybrids from Toyota and Mitsubishi around.

I just looked on carsales and $20-23K will pick you up a reasonable Leaf.

[4bee]

they have to subsist on bread and dripping



One can still purchase Dripping? I wish you could still buy good Beef Dripping with all the meaty bits in it.[happycry]

[DiscoMick]

My BIL the vet reckons some dog kibble is highly nutritious and people could easily live on it, if they wanted too.

[4bee]

I suspect we already do except they are called 'Energy Snack Bars'. It's probably the pong that would put us off but a drop of honey in the mix probably would fix that. [smilebigeye]

[loanrangie]

My BIL the vet reckons some dog kibble is highly nutritious and people could easily live on it, if they wanted too.

A la Mad Max style.

[LRJim]

A la Mad Max style.Can you even get dinky di still?https://uploads.tapatalk-cdn.com/20181026/700a32e2563c7fca7517f007a9254e9d.jpg

[donh54]

One can still purchase Dripping? I wish you could still buy good Beef Dripping with all the meaty bits in it.[happycry]

Get out of the shopping malls and go to a "real" butcher shop! The local one here has it in tubs. [biggrin]

[LRJim]

One can still purchase Dripping? I wish you could still buy good Beef Dripping with all the meaty bits in it.[happycry]Got a bowl of it in the cupboard collected from all the roasts over the years, best roast potatoes you will eat in your life [emoji106]
I showed my grandma a few years back and it brought back all her childhood memories of dripping on toast yukk.
Cheers Jim

[austastar]

......childhood memories of dripping on toast yukk.
Cheers Jim
Hi,
The gravy underneath was the best bit!
Cheers

[LRJim]

Hi,
The gravy underneath was the best bit!
CheersShe said it was like a treat and sweet, apparently they couldn't get enough of it. My FIL who's the same age says the same thing, it's the generation I guess
Cheers Jim