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PMW

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About PMW

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    Over 500 posts

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  • Gender
    Male
  • Location
    Leics, UK
  • Interests
    Caravanning, of course
  • Towcar
    Mercedes E350 CDi Blutec Cabriolet
  • Caravan
    Lunar Freelander 640EW Twin Axle 1700kg

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  1. In a research capacity in the past, though due to the nature of the beast I am not a liberty to say in what manner or who for. I am no longer involved as the contract ended. I genuinely find it a fascinating debate. Looking at facts, A vs B there seems no contest between the two systems to me, but as we have seen in the past where conflicting technologies emerge, the best or more sensible option doesn't always become the one adopted.
  2. Let me intercede at this point and say how refreshing it is to have a well informed and well mannered discussion on this subject, which for some can be quite emotive and has in some places around the web disintegrated into nothing better than a slanging match. There are some good points I want to come back on, firstly regarding passive, or induction charging. There are some cars which don't have to be plugged in to charge, I believe Mercedes made an induction charging option for their S class, so instead of plugging in you drive into your garage or driveway and position the car ov
  3. nice job, I have given you your first thumbs up. I can't believe you haven't got some already!
  4. And that is quite correct, as long as you live in a location where you can plug it in overnight, rarely travel beyond the range (real world range, not "quoted" range) of your EV and are willing to wait whilst it charges when you do exceed it. What I call the "long range" market, be they sales reps in the Mondeos, Van drivers in their Sprinters, HGV or National Express coaches will demand the creation of a Hydrogen infrastructure, both manufacture and distribution and their use, coupled with the planned use by railway locomotives means that the light car market can almost "piggy back" that deve
  5. The price of graphene has dropped dramatically over the last ten years, but don't get too excited, 90% of that drop was between 2010 and 2013 since which the fall in price has leveled out and currently prices are not falling. That would suggest that the most common form of CVD Mono Layer Graphene has seen already any noticeable drop in cost. Current costs are around 20,000 euro per m2. That's down from 10,000,000 just a decade ago but over the last few years the change has been much less and going forward is not likely to change much, if at all. That cost is not a major issue in the tine amoun
  6. A good question. There are four distinct methods of producing hydrogen and currently 96% of it comes from fossil fuels with steam reforming the most common. This is the cheapest method but is not carbon neutral and is being phased out. Steam reforming passes methane and steam over a catalyst but about 30% of the carbon from the methane escapes as greenhouse gasses. This uses 5.7MW per 1.1 tonnes of hydrogen. The most likely method of forward production is known as water splitting, a form of electrolysis and produces what is commonly known as green hydrogen. Currently this accounts
  7. my first thought would be not to Talk about where i wanted to hide a set of spare keys on a public forum
  8. I read that article when it was first published nearly two years ago, and it is more to do with the use of Hydrogen to replace natural gas as a heating fuel. It's also quite tainted in the way it interprets certain aspects of the report it was based on, which has been superseded a number of times anyway. The UK oil and gas industry has been rumbling on about using hydrogen as a heating fuel for a number of years, perhaps not surprisingly as otherwise it has no role to play in a fully electric future. It is just the same as Elon Musk talking down fuel cell vehicles as he has billi
  9. There is a lot of rubbish misinformation on this thread about Hydrogen Fuel Cells, but if anyone really wants to understand what they are, how they work and why they will be the ultimate answer to zero carbon cars then it is all on the web, it will not take you long to find. Toyota and Hyundai already sell FCVs in the UK, so to say it will never happen is obviously errant, it already is. BMW exhibited an FCV X5 in Frankfurt this year with production beginning in 2022. Mercedes have just driven three FCV vehicles around the world with zero carbon emissions. To suggest that Hydrogen
  10. Most manufacturers have determined that the future will be Hydrogen, or more likely a mix of Electric and Hydrogen/Electric hybrids.
  11. I guess you'll be asking them when you can expect to see a saving on your council tax then? OK, maybe not When we bought the Benz two years ago I seriously tried to make an argument for a plug in hybrid at least, the available all electric cars would not suit what we need. I looked at the Mitsubishi, the V60 Diesel PHEV but after a lot of research I decided taking the risk on the battery pack of a second hand 60-80k vehicle was a risk too far. OK, some people are happy to trumpet their vehicle at 100k, 120k even 150k on original batteries but you don't have to look to far to find
  12. I worked with one of those briefly, and they are still used in some shops to transfer large denomination notes to the cash office.
  13. I will admit the ones I have seen were a bit more professionally adapted. It struck me as a good idea, in principle but you would be stuck to pitches that offer a suitable facility, I doubt it would be easy if possible at all to go back.
  14. Please please please don't ever use a power drill for road wheel nuts, if it has enough torque to break the nut then it has enough torque to do some serious damage to your hands and wrists if the nut binds, whereas an impact gun will simply enter hammer mode. There is a reason, a very good reason why professionals use impact guns, be they pneumatic or battery powered and not drills despite being much more expensive. I too use a De Walt impact gun, have been doing so for years. Whenever we go away it always goes in my tool bag. If ever I need to change a wheel at the r
  15. VW do use the MLB and MLB Evo platforms. Skoda don't use it as they don't, or are not allowed to build a vehicle which needs it. I used to run parts for VW Audi group for a couple of years and the parts depot was full of .... Skodas. No quibble there that Skoda were considered the best marque in the group. That said, of the original options I would go for the Volvo, I don't know what it is but I don't like the Kodiaq. It's a totally unqualified opinion and as which is of no use to the OP whatsoever, for which I humbly apologise.
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