On 11/03/2019 23:21, John Rumm wrote:
On 11/03/2019 17:37, harry wrote:
On Monday, 11 March 2019 17:00:28 UTC, John RummÂ* wrote:
On 11/03/2019 08:19, harry wrote:
On Sunday, 10 March 2019 13:08:19 UTC, dennis@homeÂ* wrote:
On 10/03/2019 07:48, harry wrote:
On Sunday, 10 March 2019 02:15:56 UTC, Johnny B GoodÂ* wrote:
On Sat, 09 Mar 2019 10:23:31 +0000, dennis@home wrote:

====snip====


25kW for motor running a car at about 35-40mph.

Â*Â*Â* More like 2 to 5 KW at a steady 35 to 40mph on the level...

So five miles will use about 8 minutes at 25kW.
That is about 3.4 kWHr.

Â*Â*Â* Assume 5KW consumption and 35mph. That's 8.57 minutes which
works out to
some 0.7KWH's worth of energy from the battery.

You haven't allowed for energy recovery by regeneration.

Yes I have, there isn't any unless you keep slowing and stopping.
Then it takes more to accelerate back to speed.

What there is is seriously exaggerated by greens too.

How would you know?
Obviously there are no hills where you live.

What part of "steady 70 mph on a motorway" do you fail to understand?

Even if there are hills, all that will change is an increase in power
required when going up, and a reduction when coming down. At 70 mph you
will require power output at all times to maintain the speed even going
downhill, so there will be nothing to recover.


There are no steep hills on motorways.
The regenerative braking is adjustable. Set according to terrain an
bends in road.

And at a constant speed on a motorway, as much use a chocolate fire guard.



It doesn't even work on a 50 mph road.
About the only time it works is in traffic jams.
Even then you are lucky to get a few percent back.
You will of course use more through the AC/heating because your journey
takes longer than you can get back from any regeneration in those
circumstances.