energy efficiency

Energy conversion efficiency (η) is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The input, as well as the useful output may be chemical, electric power, mechanical work, light (radiation), or heat. The resulting value, η (eta), ranges between 0 and 1.

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  1. Loveclose

    Range concerns on S5

    Hi everyone..... Had my S5 over a month and generally very pleased with it so far. However, I am a little concerned over the range I'm getting. I know it's the wrong time of year to be expecting big range numbers near to what the manufacturer claims, but this is worse than my previous MG4...
    • Loveclose
    • Thread
    • air conditioning battery range energy efficiency long trip mgs5 range prediction winter driving
    • Replies: 20
    • Forum: MG MGS5 EV Forum
  2. S

    Cold weather motorway mi/kWh?

    Having had my MG4 Trophy for around 3 months now, i have been getting an average of 3.6 mi/kWh from my 50 mile round commute, of mostly A/B road driving. I am planning on using it for a snowboard trip to Austria (St. Anton) in February. What sort of mi/kWh should i expect at 70mph at say 0...
    • Sparky Matt
    • Thread
    • charging energy efficiency mg4 michelin crossclimate motorway driving snow performance winter driving
    • Replies: 21
    • Forum: MG4 EV Forum
  3. Everest

    The sweet spot

    I was musing over the thread about IM5/6 consumption of around 2.8 miles/kWh and wondering if anyone has done a study to find the sweet spot in terms of battery capacity vs. range - or at least a graph plotting the relationship graphically. In other words, are we really gaining much by increase...
    • Everest
    • Thread
    • battery capacity diminishing returns driving range electric vehicle energy efficiency mg im5 mg im6
    • Replies: 18
    • Forum: General Chat Forum
  4. R

    EV Range & Battery Consumption Calculation

    I have been using MG HS PHEV 2025 for a year now. One thing that really bugs me is that I start driving with 100 km range battery full, but if my driving consumption is around 18 kwh/100 km, the range decreases more than it should. So in my opinion if the battery is 21.4 kwh as per the...
  5. Jamesrr

    Replacement Tyre suggestions?

    I've done over 30,000kms now and am thinking about what tyres to replace the original Bridgestone Turanza T005 that our "Long Range 77" (aka Trophy ER) came with. My primary concern is energy efficiency. This is our "long distance trips" car and so distance on a charge is the key metric. Yes I...
    • Jamesrr
    • Thread
    • australia bridgestone turanza t005 continental econtact energy efficiency hankook ventus s1 as h125 mg4 pirelli p zero e tyre
    • Replies: 2
    • Forum: MG4 EV Forum
  6. ukslim

    Indications for using battery heating (now the weather is getting colder)

    Does the bug affect cabin pre-heat, battery pre-heat or both? I decided to do a battery pre-heat this morning. Started it 90 minutes before departure; app said it was on. Looked again 30 minutes before departure and app said it was off.
    • ukslim
    • Thread
    • app battery battery heating battery technology charging driving electric vehicles energy efficiency heating intelligent mg4 preheat preheating
    • Replies: 99
    • Forum: MG4 EV Forum
  7. halogen

    energy efficiency comparison.

    i was watching youtube video on energy efficiency on multiple current cars in the market... i was suprised we're just below Tesla..Bravo MG.
  8. tsedge

    Informational: EV units explained

    Hi, this came up in another discussion and may help people who are bit confused about all this talk about killer-wots and owwww-ers. The experienced will already know it. Energy is measured in Joules (J). Power is measured in Joules-per-second (J/s), which is also known as Watts (W), a...
  9. J

    Miles per kWh 2020

    Is there a way to get the 2020 zs ev to display miles per kWh? [ Edited Coulomb: correct subject for easier searching later. ]
    • janitor
    • Thread
    • dashboard display energy efficiency mg zs ev
    • Replies: 4
    • Forum: MG ZS EV Forum
  10. R

    Coveted 3p per mile

    Do the MG car apps or display show mileage per kwh or a way to find out if you are achieving 3p per mile? Or is a manual calculation required?
    • rigby44
    • Thread
    • electric vehicle energy efficiency mg4 mg4 ev
    • Replies: 6
    • Forum: MG4 EV Forum
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