Tommy Cookers wrote: ↑
Tue Feb 18, 2020 5:00 pm
properly current UK mpg '95g/mile carbon' equivalents are 76.3 (diesel) and 70.6 (petrol) - via changes in bio content rules ?
regarding the official fuel consumption/carbon emission figures ... they are a mess ....
the old (infamously optimistic) NEDC test was gradually replaced in 2017-18 by a 'WLTP-type' test
pre-2017/18 models at present use their NEDC test figures arithmetically translated into a notional equivalent of the above
so official economy figures for such vehicles have fallen - and will fall further when this concession ends in April
figures for newer models are often worse than with their NEDC-tested predecessors
on January 2021 a modified 'WLTP-type' test as per EU 2017/1151 will replace the current 2020 version
presumably even this will be optimistic (relative to ownership experience)
buyacar also says the Tesla Performance S figures put it in the 'might as well have a fuel burner' category
https://www.buyacar.co.uk/cars/1524/ele ... -explained
The US regulatory agencies have been through similar changes over the years, adopting more strict standards in testing as far as drive cycles and such. The idea was to move testing towards the real world (or in this case the real country) overall averages vs testing that allowed more leeway and loopholes.
There was a study not long back from the European Parliament, as well as many others I'm sure, that came to the conclusion that though the EU standards were overall more stringent than the US, the testing and policy procedures to enforce the standards were lacking. Over time they will all likely gradually merge to be more in line with each other, though I'm sure standards will continue to vary by specifics. The US takes more of an approach of "combined greenhouse gas impact" where the EU seems to focus on specific output levels of CO more, and less concern with other greenhouse gasses.
Since several have mentioned military use of EVs, just my opinion on the matter.
Not any time in the near future. Probably not even in the distant future.
The military will continue to be driven by speed and flexibility. With mountains of heavy vehicles designed for rapid deployment into forward operations, diesel will remain the fuel of choice for many more decades most likely. Even as it currently stands, most forward fighting armor (both heavy and light) can easily outrun the fuel supply chain that it depends on. As such, the speed of operations is often limited by the supply chain capabilities, which would be further diminished by the move to EVs.
Tactical movement of charging capabilities would be an absolute nightmare.
On the flip side, if we could somehow convince all the worlds powers to convert military equipment to EV only use, it would greatly limit the scope of conflicts in the world. The concern over tanks rolling into another country would be gone.