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    • sabelu
    • By sabelu 4th May 04, 11:08 PM
    • 1,078 Posts
    • 100 Thanks
    sabelu
    • #2
    • 4th May 04, 11:08 PM
    Re: Economy 7
    • #2
    • 4th May 04, 11:08 PM
    1 unit is about five times cheaper I believe
    • Fastflys
    • By Fastflys 4th May 04, 11:36 PM
    • 338 Posts
    • 72 Thanks
    Fastflys
    • #3
    • 4th May 04, 11:36 PM
    Re: Economy 7
    • #3
    • 4th May 04, 11:36 PM
    Hi Juanita,

    Not sure but I believe that your night time use should be at least 20% of your day time use to make Economy 7 worthwhile.
  • silverlady
    • #4
    • 5th May 04, 7:03 PM
    Re: Economy 7
    • #4
    • 5th May 04, 7:03 PM
    Don't forget you can increase your night time use with the use of cheap plug in time clocks I use my washing machine, tumble dryer,dish washer etc during the night.
  • Crayola
    • #5
    • 5th May 04, 11:46 PM
    Re: Economy 7
    • #5
    • 5th May 04, 11:46 PM
    although u get a cheaper rate during the night, your day rate is higher than that of a standard meter

    you need to be using at least 60% of your total consumption during night (any 7 hours between 7 n 7 i think)

    • Fastflys
    • By Fastflys 6th May 04, 1:45 AM
    • 338 Posts
    • 72 Thanks
    Fastflys
    • #6
    • 6th May 04, 1:45 AM
    Re: Economy 7
    • #6
    • 6th May 04, 1:45 AM
    although u get a cheaper rate during the night, your day rate is higher than that of a standard meter

    you need to be using at least 60% of your total consumption during night (any 7 hours between 7 n 7 i think)

    Not so.

    I’m on Economy 7 and have calculated my last bill’s consumption using London Energy’s Standard and Economy 7 tariffs.

    Total consumption = 965 units
    Day units = 781
    Night units = 184 [23.56% of day rate]


    London Energy’s Standard tariff

    10.96 pence first 225 units
    6.69 pence the rest

    Consumption charge = £74.17


    London Energy’s Economy 7 tariff

    12.05 pence first 225 units
    7.23 pence rest of day units
    2.84 pence night units

    Consumption charge = £72.55……………. £1.62 cheaper.


    As I posted above…… Your night time use should be at least 20% of your day time use to make Economy 7 worthwhile.


    Unless I've missed something :-/




  • Smartasss
    • #7
    • 6th May 04, 2:19 PM
    Re: Economy 7
    • #7
    • 6th May 04, 2:19 PM
    Hi Fastflys

    Unless I've missed something
    There is another element.

    The standing charge for Economy 7 is usually higher than the charge for just having a single rate supply - though your own personal tariff may be a 'no standing charge' one.
  • Crayola
    • #8
    • 6th May 04, 10:16 PM
    Re: Economy 7
    • #8
    • 6th May 04, 10:16 PM

    Not so.

    I’m on Economy 7 and have calculated my last bill’s consumption using London Energy’s Standard and Economy 7 tariffs.

    Total consumption = 965 units
    Day units = 781
    Night units = 184 [23.56% of day rate]


    London Energy’s Standard tariff

    10.96 pence first 225 units
    6.69 pence the rest

    Consumption charge = £74.17


    London Energy’s Economy 7 tariff

    12.05 pence first 225 units
    7.23 pence rest of day units
    2.84 pence night units

    Consumption charge = £72.55……………. !£1.62 cheaper.


    As I posted above…… Your night time use should be at least 20% of your day time use to make Economy 7 worthwhile.


    Unless I've missed something !:-/




    your units on the standard meter would work out at £63.36

    making your Economy 7 meter more expensive by £9.19

    am pretty sure your night rate has to be 60% of your total elec usage

    • Fastflys
    • By Fastflys 6th May 04, 10:32 PM
    • 338 Posts
    • 72 Thanks
    Fastflys
    • #9
    • 6th May 04, 10:32 PM
    Re: Economy 7
    • #9
    • 6th May 04, 10:32 PM


    your units on the standard meter would work out at £63.36

    making your Economy 7 meter more expensive by £9.19

    am pretty sure your night rate has to be 60% of your total elec usage


    Crayola, your calculation is incorrect.


    London Energy’s Standard Tariff

    Total units = 965

    225 @ 10.96 pence = £24.66
    740 @ 6.69 pence = £49.51

    Total charge = £74.17

  • Crayola
    Re: Economy 7
    sorry - didnt account for your night usage



    ur totally right and i am just thick and shall go bow my head in shame

    • Fastflys
    • By Fastflys 6th May 04, 11:17 PM
    • 338 Posts
    • 72 Thanks
    Fastflys
    Re: Economy 7
    Hi Smartasss

    Yes, London Energy tariffs are “No standing charge” ones.

    I’ve been on Economy 7 for 10 years. In that time I have been a customer of Eastern Electricity, Independent Energy, London Energy, PowerGen, Atlantic E & G etc., etc.
    Most with a Standing Charge built into their Standard and Economy 7 tariffs.

    In all cases Economy 7 has proved slightly cheaper for me.

    I would however not recommend that anyone on a Standard meter change to Economy 7 if their ratio of day/night units are similar to mine [23.56%]. The saving per year does not in my opinion warrant it.

    The original post by Juanita Ping asks how much electricity has to be used at night to make Economy 7 worthwhile?

    I still stand by my original post – No less than 20% of your day time use.
  • archived user
    Re: Economy 7
    Sorry if this is a silly question.Never had economy10 before.Should my hot water tank be heating up during the day (ie now) when no hot water has been run?
    Also,just got estimated bill from powergen.Doubt if I`ll use that much by Christmas.What is the point of having the meter outside if they are not going to read it?
  • wagon
    Re: Economy 7
    First Post, so here goes...


    On your Economy 7 water heater, you should have 2 switches; One is only for the Economy 7. The other switch can be switched on and off as desired if you need more hot water during the day, but if you have a large tank and a good tank insulation this should not be necessary
  • MattieT
    Re: Economy 7
    If you're not on Economy 7 it doesn't matter when your boiler heats up (ie it's the same price if it's done at night or not).

    So there's actually no point in having a timer on. The boiler's own thermostat will regulate when it comes on, so you make sure that you always have hot water!

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