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Batteries and saving sessions

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  • 94JDH said:
    Octopus saving session £3.37 per kWh tomorrow 5pm to 6pm
    So a good way to abuse that is what... set my batteries to charge for a few hours in the day beforehand? 
  • Spies
    Spies Posts: 2,267 Forumite
    Part of the Furniture 1,000 Posts Photogenic Name Dropper
    94JDH said:
    Octopus saving session £3.37 per kWh tomorrow 5pm to 6pm
    So a good way to abuse that is what... set my batteries to charge for a few hours in the day beforehand? 
    Use as much as you can between 1pm to 4pm
    4.29kWp Solar system, 45/55 South/West split in cloudy rainy Cumbria. 
  • 94JDH
    94JDH Posts: 146 Forumite
    Fourth Anniversary 100 Posts Name Dropper
    94JDH said:
    Octopus saving session £3.37 per kWh tomorrow 5pm to 6pm
    So a good way to abuse that is what... set my batteries to charge for a few hours in the day beforehand? 
    Yes, as much as possible even charge your batteries for this period, for reference max load is about 18kWh for an 80 amp fuse!
    PV total 19.8 kW system:
    23 x 420W East/West split over two flat roof areas at 10 degrees inclination.
    13 x 390W South spit over two flat roof areas at 5 to 20 degrees inclination.
    6 x 390W south wall mounted at 90 degrees inclination.
    7 x 390W West wall mounted at 90 degrees inclination.
    2 x 5 kW hybrid inverters
    4 x 9.5 kWh batteries (38 kWh total)
  • Spies said:
    94JDH said:
    Octopus saving session £3.37 per kWh tomorrow 5pm to 6pm
    So a good way to abuse that is what... set my batteries to charge for a few hours in the day beforehand? 
    Use as much as you can between 1pm to 4pm

    interesting  - so how much could i expect to get back then if i do that, i dont understand how it works really... the point being i am on octopus GO so if im using grid elec at those times, i will be paying 40p+ per kwh... so do i get BACK what i used in the period earlier in the day? confused...
  • 94JDH said:
    94JDH said:
    Octopus saving session £3.37 per kWh tomorrow 5pm to 6pm
    So a good way to abuse that is what... set my batteries to charge for a few hours in the day beforehand? 
    Yes, as much as possible even charge your batteries for this period, for reference max load is about 18kWh for an 80 amp fuse!

    thanks - most i use at any time is generally about 10kw, i dont have a charge point, but my batteries can charge from grid at around 5kw
  • Alnat1
    Alnat1 Posts: 3,865 Forumite
    1,000 Posts Third Anniversary Photogenic Name Dropper
    Charge batteries, run washer/dryer,dishwasher, cook a nice slow casserole for 3 hours......all things I would normally do (well, maybe not the casserole) I'm only altering when I would normally do them, which is the point of the Saving Session I think.
    Barnsley, South Yorkshire
    Solar PV 5.25kWp SW facing (14 x 375) Lux 3.6kw hybrid inverter installed Mar 22 and 9.6kw Pylontech battery 
    Daikin 8kW ASHP installed Jan 25
    Octopus Cosy/Fixed Outgoing 
  • agree - the whole point is to encourage people to shift their usage from peak hours - which we are :smile:
  • michaels
    michaels Posts: 29,117 Forumite
    Part of the Furniture 10,000 Posts Photogenic Name Dropper
    Had one on Hugo 9-10AM a couple of days ago - moved a lot of our nighttime usage (27kwh!) to 5-8AM and got about £25 back at a cost of £10.80

    Will do the same tomorrow.  Shame the iboost can only be overridden manually by going into the loft.  Do have a second immersion on the top half of the tank, may add a 16a wifi switch into the circuit for that one.
    I think....
  • JKenH
    JKenH Posts: 5,138 Forumite
    Seventh Anniversary 1,000 Posts Name Dropper

    More than a million British homes will be PAID to cut their electricity tonight as National Grid prepares to roll out its emergency scheme for the first time to avoid blackouts amid plunging temperatures - here's how to sign up


    This time it’s for real.

    https://www.dailymail.co.uk/news/article-11664197/National-Grid-activates-Demand-Flexibility-Scheme-5pm-6pm-Monday.html

    Meanwhile in this more detailed (paywalled) article in the DailyTelegraph:

    During testing, suppliers have been paid £3 per kilowatt-hour saved, but they are likely to get more outside of testing. Some are understood to have agreed  £6 per kilowatt hour for Monday evening.  

    They can choose whether to pass on the full amount to their customers, or even pay more. 


    https://www.telegraph.co.uk/business/2023/01/22/national-grid-ready-cut-energy-use-temperatures-plummet/

    Northern Lincolnshire. 7.8 kWp system, (4.2 kw west facing panels , 3.6 kw east facing), Solis inverters, Solar IBoost water heater, Mitsubishi SRK35ZS-S and SRK20ZS-S Wall Mounted Inverter Heat Pumps, ex Nissan Leaf owner)
  • 94JDH
    94JDH Posts: 146 Forumite
    Fourth Anniversary 100 Posts Name Dropper
    JKenH said:

    More than a million British homes will be PAID to cut their electricity tonight as National Grid prepares to roll out its emergency scheme for the first time to avoid blackouts amid plunging temperatures - here's how to sign up


    This time it’s for real.

    https://www.dailymail.co.uk/news/article-11664197/National-Grid-activates-Demand-Flexibility-Scheme-5pm-6pm-Monday.html

    Meanwhile in this more detailed (paywalled) article in the DailyTelegraph:

    During testing, suppliers have been paid £3 per kilowatt-hour saved, but they are likely to get more outside of testing. Some are understood to have agreed  £6 per kilowatt hour for Monday evening.  

    They can choose whether to pass on the full amount to their customers, or even pay more. 


    https://www.telegraph.co.uk/business/2023/01/22/national-grid-ready-cut-energy-use-temperatures-plummet/

    Octopus are being paid £4.50 /kWh and customer is paid £3.37 /kWh tonight 
    PV total 19.8 kW system:
    23 x 420W East/West split over two flat roof areas at 10 degrees inclination.
    13 x 390W South spit over two flat roof areas at 5 to 20 degrees inclination.
    6 x 390W south wall mounted at 90 degrees inclination.
    7 x 390W West wall mounted at 90 degrees inclination.
    2 x 5 kW hybrid inverters
    4 x 9.5 kWh batteries (38 kWh total)
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