There’s A Hole In The Bus
If you’re musical, you can sing it to the tune of the famous Harry Belafonte song.
If you not, then give us a rest, or take singing lessons.
I took this picture of the seat in front of me on the new BYD battery-electric bus this morning.
Has the stop button been nicked or has it just fallen out?
Or it could be the centuries old problem of finding good, reliable slaves?
A Nightmare Coming Home
I nearly always come home via Moorgate station, as it has good train and bus connections and I can get both the 141 and 76 buses to near my house.
- The 76 bus is my preference as it is a reliable New Routemaster.
- But the 141 bus takes me all the way home. Unfortunately, it is generally a Chinese BYD battery-electric bus.
Coming home, I arrived at the Northchurch Road in a 76 bus.
- The time was 11:29 and a text said that 141 buses were due in 1, 8, 19 and 20 minutes.
- A second text at 11:39 said that buses were due at 4 and 12 minutes.
Eventually, I got on a 141 bus at 11:44.
This is typical, as the buses don’t seem to synchronise with Transport for London’s bus reporting system.
But today in the cold weather, they have been particularly unreliable.
So I asked Google AI, if hydrogen buses are more reliable in the cold and received this answer.
Yes, studies show hydrogen fuel cell buses generally outperform battery-electric buses (BEBs) in cold weather, experiencing less range reduction because their fuel cells generate waste heat that helps warm the cabin, while BEBs must draw significant energy from the battery for heating, drastically cutting range. While BEB range can drop significantly (over 30%), hydrogen buses see a smaller dip (around 23%), making them more reliable for cold climates.
Sixty years ago, I was using nickel-cadmium batteries to make portable instruments in a chemical factory and I think that they hated the cold, but that lithium-ion solved the problem. Obviously, it doesn’t!
But I do have my suspicions about the design and build quality of these BYD buses!
The Diesel-Hybrid 141 Buses Always Seem To Get Through
Today, I had an all-too-typical bus-rid back from Moorgate after breakfast and a bit of shopping.
My direct bus is a 141, which is a second-rate, Chinese BYD bus, which has a number of problems as I pointed out in My 78-Year-Old Legs Are More Reliable Than The New Chinese Buses On London’s 141 Bus Route.
- I just missed a 141, so I caught the next bus that was going my way.
- It was a New Routemaster on the 76 route, so I took a chance, that it might pass the previous 141 bus, as they often do.
- As we passed Moorfield’s Eye Hospital, we passed the 141, but it was stopped at the side of the road, with all its lights flashing.
- I decided to change two stops from home and left two stops from home, from where I could walk.
- I waited perhaps five minutes before an elderly Wrightbus diesel-hybrid arrived to take me home,
After today’s experience, I can’t help but remember the old joke!
- Question: What’s red and lies in the gutter?
- Answer: A dead bus!
Other colours are available.
My 78-Year-Old Legs Are More Reliable Than The New Chinese Buses On London’s 141 Bus Route
So we all know what we’re talking about, here’s a few pictures.
Note.
- The buses seem to have no serious faults from a passenger point of view.
- One middle-aged lady on the plump side, said she didn’t like the buses.
- The aisle between the front seats doesn’t seem to be built for large people.
- The seats are reasonably comfortable.
- One morning, I stood on a long journey and I felt the road-holding wasn’t as good as a New Routemaster.
- On several buses, the interior route display has not been working.
- As I don’t wear a watch, I find a non-working display annoying.
- I haven’t been upstairs yet.
- As picture numbers three and four show, the bus looks a bit pokey at the back downstairs.
But I am very suspicious about the buses’s reliability or ability to handle the route, which is fairly long.
Take this morning, when I was coming home from London Bridge station.
- There was only a 43 bus at the shared stop with the 141 bus.
- As the routes are identical until Old Street station, I took the 43 bus to Moorgate station.
- At Moorgate station, I took a 76 bus, which gets me within walking distance of where I live.
- Someone said, that a 141 bus would mean a wait of ten minutes.
- In the end my 78-year-old legs delivered be home.
I didn’t see a 141 bus going my way on my journey.
I have seen behaviour like this several times, since some Chinese electric buses were introduced on to the route.
As a graduate Electrical and Control Engineer, it looks to me, that there is one of two problems with these buses.
- The batteries aren’t large enough for the route.
- Not enough time is allowed for charging the batteries at the end of the route.
This page on the Wrightbus website is entitled Wrightbus Electroliner ‘Most Efficient Double-Deck Battery-Electric Bus’, and it contains this paragraph, which probably explains their philosophy and ambition.
We have already gained a strong reputation for our hydrogen double deck but we want to lead the world in zero-emissions full stop. Wrightbus has the best brains in the business when it comes to technology and our StreetDeck Electroliner puts us squarely at the front of the pack. We haven’t weighed the bus down with a high battery volume just so we can say it’s got the most power or range; instead, we’ve made it the most efficient vehicle on the road by combining optimum power with a class-leading rapid charge, meaning our electric bus spends more time on the road than any other.
It also probably sets a very high bar, which the Chinese can only achieve by adding battery volume and making their buses pokey.
To be fair to the buses, the 141 route is probably nearly 20 miles long.
In Sutton Station To Gatwick Airport By Hydrogen-Powered Bus, I wrote about what it says in the title.
In that post, I said this about hydrogen buses running on the 141 route.
Wrightbus Hydrogen Buses For My Local Bus Route 141
Consider.
- The 141 bus route is my local bus, which gets me to Moorgate, Bank, London Bridge and Manor House.
- The length of the full route is twenty miles and it takes about an hour to go from London Bridge station to Palmers Green.
- The route is currently run by older Wrightbus hybrid diesel-electric buses.
- I suspect that modern hydrogen buses could last almost all day on one fill of hydrogen, with perhaps a top-up at lunchtime.
They would have no difficulty handling the route and would greatly increase the customers current rock-bottom satisfaction.
I am sure, they would improve the horrendous reliability of the route.
I also wonder, if Wrightbus have another solution.
In UK Among Tri-Axle Zero-Emission Wrightbus StreetDeck Prospects, I talk about Wrightbus’s new Tri-Axle Zero-Emission Wrightbus StreetDeck bus and how it would be ideal for the 141 bus route.
- The 141 bus route is the old 641 trolleybus route, so all clearances are generous.
- The tri-axle design can probably carry a better-optimised battery.
- There used to be two bus routes on the route and now there is only one, so more capacity is needed.
- The 141 bus route bridges the gap between the Northern section of the Piccadilly Line and the Elizabeth Line, Bank and London Bridge.
- The new air-conditioned Piccadilly Line trains, will increase the passengers on the line.
- There will be a lot more housing built in Enfield, at the Northern end of the Piccadilly Line and more bus capacity will be needed between Manor House and the City of London.
Some of TfL’s rerouting of buses in North London, was a crime against mathematics.
A Lonely Electric Bus
I found this bus at its terminus by the old Barts Hospital.
It is an Alexander Dennis Enviro200ev.
They are built in Britain on a Chinese chassis from BYD.
This week, I read the obituary of Simon Norton, who was a mathematician, who had an interest in group theory and bus routes and timetables.
He could have worked out a strategy, of how to keep London’s fleet of electric buses fully charged.
Consider.
- London’s single-deck routes are generally the shorter ones, so are probably ideal for electric buses.
- My instinct is telling me, that if all small buses were to be replaced with electric ones, the tight network would show up places for charging points.
- Would some be at the end of routes and some where several routes crossed?
It would be a fun calculation.
I suspect, I would solve it using a graphical method.
Riding On A Battery-Electric Double-Deck Bus
This morning I rode on a battery-electric double-deck bus.
Some of these buses are russing on route 98 between Holborn and Willesden Garage, which includes a run down Oxford Street.
There’s more on the buses in this page on the Metroline web site.
I went upstairs and the experience was little different to that of a normal hybrid bus.
My Thoughts
My thoughts in various areas.
Design
It is a well-designed bus, that is easy to use for this seventy-year-old.
Passenger Experience
Travelling along Oxford Street, the passenger experience was equal to that of a New Routemaster, without the occasional low noise of the engine.
Performance Of The Bus
As we proceeded along Oxford Street, the performance of the bus, was very much in line with current hybrid buses.
The bus wasn’t full on the upper deck, but I suspect that the total weight of the passengers is very much lower than the weight of the battery, so this might mean that a full bus performs well compared with an empty bus.
Limited Space On The Lower Deck
There is one obvious problem and that is that the size of the battery reduces the number of seats downstairs.
As I said earlier, I doubt the weight of the passengers is a problem, but the available space, where they sit and stand could be.
Economics Of The Bus
The bus will obviously be expensive to purchase and to run, as batteries are expensive and need to be replaced every few years.
Coupled with the fact that capacity is smaller than current hybrid buses, which probably means more buses are needed to perform the required service, the economics of the buses may not be suitable for many routes.
I also wonder, if a battery-electric double-deck bus has better economics than a single-deck bus, as the extra weight of the top deck and the extra passengers is small compared to the weight of the battery.
But the economics will get better with improved battery technology.
The Marketing Advantages
BYD and Metroline could be big winners here, as corporate videos and marketing material showing buses in Central London, can’t be a bad thing!
The Competition From Diesel Hybrid Buses
I believe that one competitor to the battery-electric bus will be the next generation of diesel hybrid buses.
Take the current modern hybrid buses like a New Routemaster or any other hybrid bus built in the last couple of years. These have a battery that can power the bus for perhaps a couple of miles.
As the battery is smaller, it can be squeezed into an unlikely space. On a New Routemaster, the diesel engine is under the back stairs and the battery is under the front stairs.
A technique called geo-fencing can be retro-fitted, which forbids the use of the buses diesel engine in sensitive areas, based on GPS technology.
So a route like London’s route 98 could work through the ULEZ on battery power and charge the battery between Edware Road station and Willesden Garage.
The Competition From Hydrogen Hybrid Buses
This will surely be similar to that from diesel hybrid buses.
- Battery size will probably be as for a diesel hybrid bus.
- As hydrogen doesn’t give out noxious emissions, this will be an advantage and you won’t need the geo-fencing.
- But you will need to store the hydrogen.
As hydrogen technology improves, I feel that the hydrogen hybrid bus could become a formidable competitor.
The Competition From Converting Old Diesel Buses To Diesel Hybrid Buses
I talked about this in Arriva London Engineering Assists In Trial To Turn Older Diesel Engine Powered Buses Green.
Never underestimate good engineers with a good idea, that has a good financial payback.
Conclusion
There is going to be a lot of competition between the various technologies and the passengers, bus operators, London and London’s air will be big winners.
As all of this technology can be applied anywhere, other parts of the UK will benefit.
The Anonymous Widower 