Point of order - 100% biodiesel (if they can be adjusted to run on that) is carbon neutral because the crops you make it from have taken in the carbon that is then emitted when it's burnt. It is however not pollution free as particulates etc are emitted.
It can only be carbon neutral if the land has always been used for growing that crop and continues to be used for that purpose (so that the carbon is re-absorbed by the next batch). If the land used was previously built-over then it might be carbon negative but most likely the land would previously have been used for food production in which case an area of rainforest has probably been cleared to replace the food-production land and therefore the land-use change has a carbon impact.
I'd argue that what's an awful lot more stupid than that is having ordered FLIRTs without a pantograph!
Yes, that was pretty stupid unless they have worked out that it adds to much weight and they actually burn less fuel this way AND a pantograph can be added later. I'm not sure but I think there's even a pantograph well on the 231s so adding a pantograph should be as easy as putting it back on the TfW 769s - I sure hope it is that easy.
I fundamentally don't agree with you that wide doors are a bad thing on regional expresses.
Sorry, I cannot see any justification for additional standing capacity on a regional express. There is always something more useful you could do with the space.
Out of curiosity which parts of the TfW network are likely to be electrified by 2040?
And how much of the entire UK rail network still won't be electrified so the 197s can be cascaded to other TOCs?
Who knows. My concern is that the existence of 161 relatively new DMUs (the Civity fleets being the only pure DMUs built recently) gives the DfT/treasury an excuse to kick the can down the road on electrification makes it likely that less electrification will be authorised by 2040 than would be the case with only 110 newish DMUs (110 Civity DMUs being what we would have if only 26 class 197s are built instead of the full 77).
Only the parts that are already electrified, plus the Valley lines. Even busy lines line the North Wales coast have an appalling business case for it. In a post Covid cash strapped UK, I think the chances of further electrification in an area like Wales is virtually nil.
As rail infrastructure in Wales is not devolved (apart from the Core Valley Lines), and so is the responsibility of the DfT and Westminster, as things stand, the answer is STJ to Cardiff Central only.
Which is why the 197s were ordered by Keolis Amey in the first place. Chris Grayling was UK transport secretary at the time, who was cancelling electrifictaion schemes all over England & Wales in 2017-18 when the new W&B franchise bids were being prepared. In that environment, I'm not sure what else could have been ordered.
I agree, in that environment there was little prospect of anything other than DMUs being ordered (except perhaps DEMUs, which would have been a better choice if designed for an easy version of Project Thor to be undertaken later), but they did not need to order 77 of them and with Climate Change moving rapidly up the agenda and the publication of Network Rail's TDNS the decision to order so many DMUs is now looking extremely outdated. If you are proved to be correct and no more electrification has been delivered by 2040 then government will not have been taking climate change seriously and humanity will be facing a crisis far bigger than COVID.
If the traffic doubles again I would like to see the engine rafts in the units converted to hybrid models. Now we have electric motors and batteries in the mix, perhaps a pantograph car with additional batteries could then be inserted to feed the motor cars, a-la project Thor, lengthening the trains also.
Thor was filled in the too expensive/difficult pie - in part because of lack of existing cables/systems to feed motors from other cars. Not insurmountable I'm sure but I fear still too difficult to get the go ahead.
The hyperbole on how awful the new fleet is going to be is really a bit excessive. And in any case, they're coming whether you like it or not. For your own health and sanity I'd advise trying to come to peace with this fact!
I came to terms with the fact that
some of them are coming whether I like it or not a long time ago. But all 77? I cannot come to terms with that.
Yes, powered by biodiesel we could end up in a position where classes 195, 196 and 197 are cascaded to cover the UK's entire DMU requirement, which will be a requirement for a while (unless there is a bonfire of the branch lines in favour of electric buses). Even 170/175/180 are old tech now, and 185 are heavy and polluting.
I agree that the UK will eventually end up with the Civity DMUs being the entire DMU fleet, supplemented by bi-modes and perhaps the odd DEMU (eg. 231s) - it's just that the timeframe doesn't tie up with when we need to decarbonise (ie. ASAP). The map of recommended solutions to decarbonise each route is on page 79 of
Network Rail's TDNS (but the page number you need to enter in Adobe Reader is 85). While I would love to see pathway 4 (net-zero by 2040), even without the 197s I think that is undeliverable. Thus the best-case scenario which I am trying desperately to preserve is completion of the full TDNS programme by 2050. The problem with that is that the 197s could potentially operate until 2062 (if the government sits on their hands and gives them 40 years as the 150s seem likely to get) and full TDNS implementation involves zero DMUs.
Scotland has already pledged to be rid of diesel passenger trains by 2035 with most of their electrification to be done by then and all bar the West Highland due to eventually have a signficant portion under the wires. So they won't need any of the Civity DMUs, and neither will Anglia thanks to their FLIRTs. The only routes on the TDNS map where a Civity DMU could run without wasting investment in electrification by running under the wires for a substantial part of the trip are:
- Newport - Ebbw Vale (Cardiff - Ebbw Vale has more under-wires running)
- Conwy Valley Line
- Wrexham Central - Bidston
- Oxenholme - Windermere (if you don't run through to Manchester)
- Looe, Falmouth, Gunnislake and St. Ives branches
- Henley and Marlow Branches (assuming no through running onto the GWML)
- Middlesborough - Whitby
- Darlington - Bishop Auckland
Based on
this topic, that's about 22 units in service daily. Everything else really ought to be able to draw power from OHLE and/or third rail and even then I get nowhere near 161 self-powered units. Admittedly that's the end game and we've a long way to go before we get there, but if we want to decarbonise rail by 2050 with a steady rate of electrification we are looking like having a surplus of diesel units sometime after 2040.