Non-motoring > Smart Meters Miscellaneous
Thread Author: maltrap Replies: 91
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New Mon 6 Apr 20 09:09 
 Smart Meters - smokie
Thought I'd add a comment to this thread rather than create a new one. Someone may find it of interest...

Yesterday saw the deepest and most sustained negative energy costs for users on Octopus's Agile tariff. Agile is the one where the daily tariff for the next day is published around 4pm so you can plan when you want to run your energy hungry appliances the following day, charge your car or you battery bank.

The prices are published for each half hour window of the day. The people who would benefit with least effort are those with energy management systems, which take the data and determine and control when certain loads are switched on and off - so for instance for a washing machine with a two hour cycle they would look for the cheapest consecutive two hours as you wouldn't want to interrupt a run, whereas to charge your car for two hours you just choose the four cheapest half hour periods. I don't recall ever seeing the pricing in negative during the day before, since I stated with them in Nov 2018.

I don't use Agile at the moment as I am on a different tariff which gives me very cheap electricity for 4 hours overnight which is when I charge the car (when it needs it, and if the sun isn't shining during the day). But my program mentioned above does summarise what the previous day consumption did, and would have, cost me. The rate varies slightly from region to region.

Overall the average cost per unit over 24 hours yesterday was 3.73p. The cheapest period ran from 10:30 to 16:00 when elec averaged -1.32p which means they were paying you to take it away. Not much I know but better than most of us did! My actual usage in the same time period cost me just over 20p for the same period (although it was sunny we had a Sunday roast which probably cost about 12p to cook). The whole day cost for me was 96p but only 22.6p on the Agile tariff.

Note - figures are without VAT and there is obviously a standing charge to be added.


(Actually, typing this has made me wonder how easy it is to swap tariffs then swap back, as while I'm not charging the car, and over the summer, Agile might be the right tariff for me)
Last edited by: smokie on Mon 6 Apr 20 at 09:10
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