Next Drive time change to GMT

  • digger's Avatar
    Level 6
    Hello,
    I am currently on the Next Drive tariff and have my solar inverter set to charge my battery between 00.00 and 07.00. What happens on the night we change from BST to GMT as there will actually be 8 hours between 00.00 and 07.00?
    Thank you
  • 3 Replies

  • Rovarious's Avatar
    Level 4
    The FAQ on the new (but pretty useless) home app has this (it is about EV scheduling but electricity is electricity):

    When clocks move forward in spring and back in Autumn your EV schedule will maintain the correct schedule automatically. There is however an impact of one hour less charging in spring and one more hour in autumn.


    For example, in Spring a schedule 01:00 to 06:00, normally 5hrs of charging, will experience only 4 hrs of charge as 06:00 is moved forward, just like we get one hour less in bed. In autumn the opposite will happen and there would be 1hr more charging expected.



  • rwh202's Avatar
    Level 5
    The FAQ on the new (but pretty useless) home app has this (it is about EV scheduling but electricity is electricity):
    Yep, that's what should happen if you are on a meter configured as single rate and E.ON use the 30 minute data to calculate, so a bonus hour of cheap in autumn.
    However, if you are on a 'Next Drive 2R' tariff where they use a meter configured with 2 rates, you are at the mercy of whatever configuration has been set there - the default is to remain slaved to GMT.
  • geoffers's Avatar
    Level 32
    Yep, that's what should happen if you are on a meter configured as single rate and E.ON use the 30 minute data to calculate, so a bonus hour of cheap in autumn.
    However, if you are on a 'Next Drive 2R' tariff where they use a meter configured with 2 rates, you are at the mercy of whatever configuration has been set there - the default is to remain slaved to GMT.
    The single/dual rates on the meter are actually irrelevant in relation to billing - they are just there for information purposes in terms of displaying your approximate costs on your ihd.

    The actual ½ hourly kW power usage on the meter is always stored in UTC format (ie GMT) and when calculating the bill EON will add the one hour offset for BST in the summer months.

    So it's exactly like someone said: you get an hour extra in bed in the autumn and an hour less in bed in the spring - same with your hours of cheap electricity 🤓