Price of a kilowatt

Discussion in 'Prime Plug-in Charging' started by stanley soroka, Oct 6, 2016.

  1. stanley soroka

    stanley soroka Junior Member

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    Does anyone take in the price of a kilowatt of electric when calculating the cost of operating the 2017 Prius Prime?
     
  2. Lee Jay

    Lee Jay Senior Member

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    A kilowatt-hour is a measure of energy (a kilowatt is a measure of power), and its cost ranges widely around the world, from a low in the 5 cent range to a high in the over $1 range in remote places like Alaskan villages where it's generated by diesel. Average in the US is a dime or a little more, often over 20 cents in Europe.
     
  3. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    It is possible that Largo is in Florida.

    Residential electricity rates in Florida average 11.42¢/kWh, which ranks the state 22nd in the nation.
    The average residential electricity rate of 11.42¢/kWh in FL is 3.87% less than the national average residential rate of 11.88¢/kWh.
    The approximate range of residential electricity rates in the U.S. is 8.37¢/kWh to 37.34¢/kWh.

    Florida Electricity Rates | Electricity Local
     
  4. Trollbait

    Trollbait It's a D&D thing

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    Haven't checked yet if the Prime is up yet, but Fueleconomy.gov posts an annual fuel cost along with the window sticker MPG numbers for cars. The default uses average fuel prices, including electric for the nation, but it can be personalized. There is even an in depth calculator on the PHEV entries.
     
  5. er86

    er86 Junior Member

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  6. bisco

    bisco cookie crumbler

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    we pay 24 cents per kWh, and i drive a plug in for kicks, not to save money.
     
  7. DavidA

    DavidA Prius owner since July 2009

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    Gads! That's high. We're at 6.37 cents per kWh here. A plug in is a no-brainer. I'll still wait until the price of the Prime comes down to Earth, though.
     
  8. Prius Maximus

    Prius Maximus Senior Member

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    I'm paying about $0.13 per KWH. I'd agree with the use of an average kilowatt hour price in figuring Prime operation costs. Electric prices vary but not as much as gasoline. If you took a yearly average of both I think you'd be pretty close.

    I seem to remember somebody posting that at 13 cents/KWH, breakeven would be around $2.00/gallon.

    Found it...

     
  9. Jan Treur

    Jan Treur Active Member

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    You still pay far too much; see the graph below. By using your own solar panels you should be able to approximate 2 ct/kWh!

    [​IMG]
     
  10. bisco

    bisco cookie crumbler

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    i don't live in any of those countries.:)
     
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  11. Jan Treur

    Jan Treur Active Member

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    Same for me, but you still can buy similar solar production equipment for yourself (if you do not already have it). Or why not move to Abu Dhabi?
     
  12. RRxing

    RRxing Senior Member

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    Where's "Chili?"
     
  13. Lee Jay

    Lee Jay Senior Member

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    It's a very large state in the south of the US where they often mix meat, beans, and spicy fruits into a soup-like substance.
     
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  14. bisco

    bisco cookie crumbler

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    you would think solar would pay at 24 cents, but it depends on you latitude, roof area and shading, etc.
     
  15. Jan Treur

    Jan Treur Active Member

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    Yes, my own system's production will also not be close to these 2 ct/kWh; a main reason is that I installed it in 2013 and since then prices for PV systems have reduced a lot.

    Nowadays you can have solar panels for less that 50 ct/Wp. This means (with an inverter of less than 1000 euro) that you can have a 4000 Wp PV system for 3000 euro. Such a system can produce almost 4000 kWh per year. Over 30 years this is 120 000 kWh. Within these 30 years you have to renew the inverter halfway, so total investment will be around 4000 euro. Dividing these numbers will get 3 ct/kWh, which is not very far from the 2 ct/kWh.
     
    #15 Jan Treur, Oct 8, 2016
    Last edited: Oct 8, 2016
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  16. 05PreeUs

    05PreeUs Senior Member

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    ~$0.12/Kw-Hr here in East Texas.
     
  17. kevins007

    kevins007 Active Member

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    Can someone please tell me how to compute the cost to charge the Prius?

    Thanks
     
  18. Lee Jay

    Lee Jay Senior Member

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    8.8kWh * cost/kWh = cost to charge from Ev mode drained.
     
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  19. KrPtNk

    KrPtNk Active Member

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    The battery after ev mode is depleted isn't 8.8 kw. There is a reserve kept in the battery for hv operation. I don't know the exact number, but I think the recharge would be between 6 and 7 kw.
     
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  20. Lee Jay

    Lee Jay Senior Member

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    The add the charge efficiency (probably about 85%) losses, and you're back to about 8.8kWh.
     
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