Re: Dang - missed Earth Hour again

From	Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au>
Newsgroups	aus.electronics
Subject	Re: Dang - missed Earth Hour again
Date	2017-04-01 10:39 +1100
Message-ID	<ek881dFj6o5U1@mid.individual.net> (permalink)
References	(3 earlier) <ek5f5fF2l4kU1@mid.individual.net> <ek5l3uF3lhaU1@mid.individual.net> <ek5mmbF3tgtU2@mid.individual.net> <ek5n0uF3vscU2@mid.individual.net> <9axDA.503041$3a3.133724@fx43.am4>

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On 1/04/2017 5:25 AM, Benderthe.evilrobot wrote:
>
> "Sylvia Else" <sylvia@not.at.this.address> wrote in message
> news:ek5n0uF3vscU2@mid.individual.net...
>> On 31/03/2017 11:31 AM, Trevor Wilson wrote:
>>> On 31/03/2017 11:10 AM, Sylvia Else wrote:
>>>> On 31/03/2017 9:22 AM, Trevor Wilson wrote:
>>>>> On 31/03/2017 9:17 AM, Sylvia Else wrote:
>>>>>> On 31/03/2017 7:21 AM, Benderthe.evilrobot wrote:
>>>>>>>
>>>>>>> "Sylvia Else" <sylvia@not.at.this.address> wrote in message
>>>>>>> news:ejp7o7Fj307U1@mid.individual.net...
>>>>>>>> I wish they'd advertise it better, so that I can ignore it
>>>>>>>> deliberately.
>>>>>>>
>>>>>>> Is that an Australian thing? - Never heard of it here in the UK.
>>>>>>>
>>>>>>
>>>>>> It was started here, to our shame, but it got picked up in a
>>>>>> number of
>>>>>> other countries.
>>>>>>
>>>>>> Showing support by turning off efficient lighting, and burning
>>>>>> inefficient CO2 emitting candles instead, is a common theme.
>>>>>>
>>>>>> Earth hour is, above all, a demonstration of ignorance.
>>>>>>
>>>>>
>>>>> **Well, not really. It was designed to make people aware of the
>>>>> problems
>>>>> this planet faces and that we ALL need to work together to make a
>>>>> difference. Certainly, turning off pool pumps (or filling in a pool,
>>>>> like I did), or air conditioners will make several orders of magnitude
>>>>> more impact on the environment than turning off some LED lighting, but
>>>>> lighting is easy to see.
>>>>>
>>>>>
>>>>
>>>> Whatever the intent behind it, all it's managed to demonstrate is that
>>>> people have little understanding of the issues.
>>>
>>> **How do you know?
>>>
>>>
>>
>> Because if they did, they're realise that burning candles is not the
>> way to show support.
>
> Most people don't even think about all electric cars mostly still
> require burning fossil fuel to generate the electricity in the first
> place - countries with coal fired power stations didn't win much at all.
>

**Probably more than you think. Electric cars have some major advantages 
over IC cars. Including:

* Maximum toque at zero RPM.
* Around 90%+ efficiency at ALL RPM figures. My last couple of cars were 
fitted with fuel consumption computers. When cold, the car consumed 
around 20L/100km on flat ground, with moderate throttle opening. When 
warm, that figure fell to around 6L/100km. An electric vehicle consumes 
the same amount, regardless of temperature (within obvious limits). No 
warm-up is required. Since many city vehicles are operated over short 
trips, fuel efficiency can be spectacularly bad. Long trips suit IC 
engines quite well.
* Regenerative braking. This is the big one and particularly for city 
drivers. As much as 60% of the energy which would be otherwise wasted as 
heat, can be used to recharge the batteries.

All of which demonstrates the the average fuel economy of an electric 
vehicle can be quite low, in terms of CO2 production/km. That said, for 
me, if I had an electric vehicle, I could easily meet my transport needs 
by using an array of PV cells on the roof of my garage. Thus the total 
nett CO2 contribution would be zero. YMMV.

-- 
Trevor Wilson
www.rageaudio.com.au

Thread

Dang - missed Earth Hour again Sylvia Else <sylvia@not.at.this.address> - 2017-03-26 18:08 +1100
  Re: Dang - missed Earth Hour again "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-03-30 21:21 +0100
    Re: Dang - missed Earth Hour again Colin Horsley <horsley-spam@westnet.com.au> - 2017-03-31 08:13 +1100
    Re: Dang - missed Earth Hour again Sylvia Else <sylvia@not.at.this.address> - 2017-03-31 09:17 +1100
      Re: Dang - missed Earth Hour again Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2017-03-31 09:22 +1100
        Re: Dang - missed Earth Hour again Sylvia Else <sylvia@not.at.this.address> - 2017-03-31 11:10 +1100
          Re: Dang - missed Earth Hour again Rheilly Phoull <rheilly@bigslong.com> - 2017-03-31 08:25 +0800
            Re: Dang - missed Earth Hour again Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2017-03-31 11:28 +1100
              Re: Dang - missed Earth Hour again Rheilly Phoull <rheilly@bigslong.com> - 2017-03-31 11:37 +0800
              Re: Dang - missed Earth Hour again "Rod Speed" <rod.speed.aaa@gmail.com> - 2017-03-31 15:21 +1100
              Re: Dang - missed Earth Hour again F Murtz <haggisz@hotmail.com> - 2017-03-31 16:29 +1000
                Re: Dang - missed Earth Hour again Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2017-03-31 16:39 +1100
                Re: Dang - missed Earth Hour again "Rod Speed" <rod.speed.aaa@gmail.com> - 2017-03-31 17:17 +1100
          Re: Dang - missed Earth Hour again Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2017-03-31 11:31 +1100
            Re: Dang - missed Earth Hour again Sylvia Else <sylvia@not.at.this.address> - 2017-03-31 11:43 +1100
              Re: Dang - missed Earth Hour again Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2017-03-31 11:58 +1100
                Re: Dang - missed Earth Hour again Sylvia Else <sylvia@not.at.this.address> - 2017-03-31 12:13 +1100
                Re: Dang - missed Earth Hour again F Murtz <haggisz@hotmail.com> - 2017-03-31 16:30 +1000
                Re: Dang - missed Earth Hour again "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-03-31 19:29 +0100
              Re: Dang - missed Earth Hour again "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-03-31 19:25 +0100
                Re: Dang - missed Earth Hour again Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2017-04-01 10:39 +1100
                Re: Dang - missed Earth Hour again "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-04-01 19:51 +0100
                Re: Dang - missed Earth Hour again "Rod Speed" <rod.speed.aaa@gmail.com> - 2017-04-02 10:10 +1000
                Re: Dang - missed Earth Hour again Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2017-04-02 14:21 +1000
                Re: Dang - missed Earth Hour again "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-04-02 18:17 +0100
                Re: Dang - missed Earth Hour again "Rod Speed" <rod.speed.aaa@gmail.com> - 2017-04-03 03:58 +1000
                Re: Dang - missed Earth Hour again "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-04-02 19:27 +0100
                Re: Dang - missed Earth Hour again "Rod Speed" <rod.speed.aaa@gmail.com> - 2017-04-03 10:03 +1000
                Re: Dang - missed Earth Hour again "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-04-03 19:50 +0100
                Re: Dang - missed Earth Hour again "Rod Speed" <rod.speed.aaa@gmail.com> - 2017-04-04 06:43 +1000
                Re: Dang - missed Earth Hour again "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-04-03 21:49 +0100
                Re: Dang - missed Earth Hour again "Rod Speed" <rod.speed.aaa@gmail.com> - 2017-04-04 08:55 +1000
                Re: Dang - missed Earth Hour again "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-04-04 20:13 +0100
                Re: Dang - missed Earth Hour again "Rod Speed" <rod.speed.aaa@gmail.com> - 2017-04-05 06:21 +1000
                Re: Dang - missed Earth Hour again not@telling.you.invalid (Computer Nerd Kev) - 2017-04-03 21:44 +0000
                Re: Dang - missed Earth Hour again "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-04-04 20:16 +0100
                Re: Dang - missed Earth Hour again "Rod Speed" <rod.speed.aaa@gmail.com> - 2017-04-05 06:22 +1000
                Re: Dang - missed Earth Hour again "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-04-06 19:26 +0100
                Re: Dang - missed Earth Hour again "Rod Speed" <rod.speed.aaa@gmail.com> - 2017-04-11 14:30 +1000
                Re: Dang - missed Earth Hour again "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-04-11 19:43 +0100
                Re: Dang - missed Earth Hour again "Rod Speed" <rod.speed.aaa@gmail.com> - 2017-04-12 05:35 +1000
                Re: Dang - missed Earth Hour again Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2017-04-03 08:23 +1000
                Re: Dang - missed Earth Hour again F Murtz <haggisz@hotmail.com> - 2017-04-03 12:55 +1000
                Re: Dang - missed Earth Hour again "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-04-03 19:52 +0100
            Re: Dang - missed Earth Hour again "Rod Speed" <rod.speed.aaa@gmail.com> - 2017-03-31 15:22 +1100
        Re: Dang - missed Earth Hour again "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-03-31 19:19 +0100
      Re: Dang - missed Earth Hour again Gordon Levi <gordon@address.invalid> - 2017-03-31 15:51 +1100
        Re: Dang - missed Earth Hour again Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2017-03-31 16:37 +1100
          Re: Dang - missed Earth Hour again keithr0 <user@account.invalid> - 2017-03-31 20:06 +1000
          Re: Dang - missed Earth Hour again Gordon Levi <gordon@address.invalid> - 2017-04-01 17:06 +1100
            Re: Dang - missed Earth Hour again Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2017-04-01 17:03 +1100
              Re: Dang - missed Earth Hour again F Murtz <haggisz@hotmail.com> - 2017-04-01 21:05 +1000
                Re: Dang - missed Earth Hour again Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2017-04-02 07:42 +1000
      Re: Dang - missed Earth Hour again "Benderthe.evilrobot" <Benderthe.evilrobot@virginmedia.com> - 2017-03-31 19:15 +0100

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