Diesel, the future?

[olley]

At the moment a 60Kwh lithium battery weighs around 500kg which gives car about 250 miles range, how big does it need to be for a 4250kg motorhome?

 

[Onemanandhisdog]

Unless trucks and motorhomes are charged less at the diesel pump than cars, sooner or later we won't be able to afford to fill up as they try and price the last remaining diesel cars off the road.

 

[two]

This surely depends what voltage you run at. I think a CV roof designed with solar in mind could generate a fair few watts, dont forgot you are only trying to supplement the power plant not replace it totally.

I think you'd only be getting a couple of miles per kWh, at best. So a range of 100miles using electricity would require at least 50kWh of batteries.
Even if you could squeeze 1000W of solar panels onto your roof, they won't produce the full potential for much of the day, if at all. They might produce 10kWh if you could get at least 10 hours of perpendicular sun, so replenishing a modest 50kWh battery bank would take 5 days minimum from solar alone. Better than nothing but, in practice, I'd expect it to take more like 20 days.

 

[tacr2man]

Unless trucks and motorhomes are charged less at the diesel pump than cars, sooner or later we won't be able to afford to fill up as they try and price the last remaining diesel cars off the road.

You can buy a lot of diesel for the differential of electric propulsion .
The cost of lithium/solar set up to power the hab of a non gas no ehu unit is £15k from info by builder of same .

 

[The Dotties]

Spain appears to be going down the "2050 nothing but electric allowed on roads route ".Not even hybrids. Like to see that one.

So would I. Make me 101

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[jongood]

I just meant unless you want to go in the centre of Paris and possibly a couple of other big towns there is little point in having one for France, now get out and enjoy yourselves or is it raining.

Martin

Its hard out here mate been out for lunch and now getting out of the sun for a bit.

But Au contraire mon ami, have a look at the ZPads, now include the whole of the Gironde, Niort and autoroutes and many other regular haunts.

 

[jongood]

I think you'd only be getting a couple of miles per kWh, at best. So a range of 100miles using electricity would require at least 50kWh of batteries.
Even if you could squeeze 1000W of solar panels onto your roof, they won't produce the full potential for much of the day, if at all. They might produce 10kWh if you could get at least 10 hours of perpendicular sun, so replenishing a modest 50kWh battery bank would take 5 days minimum from solar alone. Better than nothing but, in practice, I'd expect it to take more like 20 days.

I'm taking hybrid not EV - electrical power requirements are different.

 

[funflair]

Its hard out here mate been out for lunch and now getting out of the sun for a bit.

But Au contraire mon ami, have a look at the ZPads, now include the whole of the Gironde, Niort and autoroutes and many other regular haunts.

Yes but will they ever enforce those areas?

Martin

 

[two]

I'm taking hybrid not EV - electrical power requirements are different.

So was I, actually.
We'll have to wait and see how much capacity they provide in their batteries.

 

[jongood]

Yes but will they ever enforce those areas?

Martin

Thats what I've been wondering and if so how. I asked my friend who has lived in France for 15 years and he didnt know a thing about it.

If its gendarmes its not a problem but cameras these days are a different issue.

Again, if the French refuse to do it en masse it might be like the breathalyser and get quietly dropped.

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[jongood]

So was I, actually.
We'll have to wait and see how much capacity they provide in their batteries.

A CV roof full of solar should surely help the case with a hybrid. If they are like the bipvcos running at 48v should be some serious amps to be had.

 

[gus-lopez]

Unless trucks and motorhomes are charged less at the diesel pump than cars, sooner or later we won't be able to afford to fill up as they try and price the last remaining diesel cars off the road.

The advantages of being able to run on anything I can fill at aldi's if I'm desperate

 

[jongood]

I knew I had seen one somewhere


The E Home at the Dusseldorf Motorhome Show

As well as impressive new motorhome styling and some interesting new layouts, we saw innovation too in the form of new concepts such as the “E-Home” – an electric drive motorhome (pictured above, and yes, it is covered in solar panels!)

 

[tonyidle]

This surely depends what voltage you run at. I think a CV roof designed with solar in mind could generate a fair few watts, dont forgot you are only trying to supplement the power plant not replace it totally.

Voltage is irrelevant - solar output of any size can be arranged to suit. Wattage is the problem. Most motorhomes with careful initial design of the roof layout could manage round 500W - 750W maximum. In summer, at the Equator.

 

[tonyidle]

I'm taking hybrid not EV - electrical power requirements are different.

A hybrid with 50 miles battery-only range could manage any town or city low-emission zone and is, as you suggest, a sensible possibility.

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[jongood]

Voltage is irrelevant - solar output of any size can be arranged to suit. Wattage is the problem. Most motorhomes with careful initial design of the roof layout could manage round 500W - 750W maximum. In summer, at the Equator.

Well just as a quick reckon up a 100w solar panel is about 1100mm x 600mm, my roof is 7500 x 2350 so I could in theory get about 1500 watts on allowing a bit of room for heki's etc.

Jon

 

[tonyidle]

Well just as a quick reckon up a 100w solar panel is about 1100mm x 600mm, my roof is 7500 x 2350 so I could in theory get about 1500 watts on allowing a bit of room for heki's etc.

Jon

You may be correct. I have a 250W panel + 100W original on a 9M motorhome. It has four rooflights and an auto satellite dish. I reckon I could manage another 250W panel + some smaller infill ones. I based my 750W on current roof layouts that aren't optimised for solar and a lot is lost because of front & rear curvature as well. A vehicle designed for solar fitment would do a lot better but there rooflights in places relevant to the internal layout would still be needed. From experience on dull days (most) the output from 1500W would still be almost irrelevant to the needs of propulsion.

 

[jongood]

A hybrid with 50 miles battery-only range could manage any town or city low-emission zone and is, as you suggest, a sensible possibility.

I think we may be talking cross purposes here - I'm suggesting PVs on a Commercial hybrid as a way of extending the electric range.

 

[Robin McHood]

There may be another potential replacement for carbon based fuels again using hydrogen but generated on board the vehicle and an ability to 'refill' quickly :-

https://eandt.theiet.org/content/ar...engines-developed-to-solve-electric-car-woes/