Recent content by ericlesley

https://mobile.twitter.com/davidleeNZ/status/1109261591327854592 Seen this, from New Zealand? First time I've seen double deckers opportunity charging

Think the diesel generator was temporary and they're on full grid electric now. Though, I could be wrong.

Have you seen there's a trial going on in Harrogate using this system? Volvo buses, but not sure who's supplying the charging gear. And you're right, the tech is there now. Just needs the willpower and some funding.

The "board at flag" policy is the best thing about Lothian Buses>

Sorry, should've made this clear when I said like-for-like performance. At the moment there aren't any battery electric buses that can match a diesel bus in terms of capacity and range. 1KWh of battery storage is roughly £1000, so in order to facilitate extended range the bus becomes...

I guess a lot of this discussion is imagining a Battery Electric Bus (BEB) as a like-for-like replacement for a diesel bus. The days when you can charge a bus once and run it all day are a long way off. However, flash charging throughout the day is very much viable. However there are major...

sorry, hope you didn't think i was patronising you, or anyone else.... Absolutely, if the infrastructure is already there it makes perfect sense... But I did read that Berlin and Stockholm are seriously considering re-introducing trolleybuses (because on intensive routes it is very efficient...

This is an excellent point, and perhaps one of the reasons that SOLARIS are so well placed in the electric bus market - their experience designing trolleybuses and trams? Another point is the type and chemistry of batteries available. The big car makers are piling money into R&D of solid state...

Sorry to go off topic, but here's a paper from 2017 that shows, similarly, that euro vi emissions are higher in real world tests. And especially in urban operation. "Our analyses revealed that up to 85% of the NOx emissions measured during the tests performed are not taken into consideration if...

In the paper EEV is euro VI. And it deals extensively with the technologies used. Not sure the age is relevant. Sorry to repeat myself but low carbon is different to low NOx and PM. Euro standards are aimed at reducing the later 2, in particular. And it is those particles which cause the most...

Unfortunately the evidence is that Euro VI does not necessarily reduce emissions at all. The crucial variable is engine operating temperature which needs to be high. This is achievable with extended high speed running on motorways and the like but real world operations have found it difficult to...

As other posters have mentioned, the total cost of ownership of electric buses is already on par or lower than diesel buses. The problem is the upfront capital costs which are prohibitive. To put it in context, 1000kWh of battery storage is around £1000. Bloomberg New Energy Finance estimates...

Diesel, for sure, is the current fuel of choice. But both the reports I posted show that the Total Cost of Ownership of electric (BEB) is already on a par and in some cases lower than that of a diesel bus (however productivity can be an issue, requiring larger fleets). The Bloomberg report...

The future of buses is most likely to be electric. At the moment that looks like smaller batteries with opportunity charging or trolleybuses with discontinuous over head. Prague (route 58)has reintroduced a trolleybus route and is looking to extend. Likewise Berlin and Stockholm are considering...

Was just at craigentinny depot and there's a modified rake there. Have to say, it looks smashing from up close (looking though a fence). Unfortunately my phone battery was dead so couldn't take any snaps.