Posted by: @hcas

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Interesting to see whether the market will move to Time of Use (Octopus) or Type of Use (OVO) tariffs... 

Time of use is the one which makes economic sense, its a way to balance the grid load thus reducing the infrastructure build needed to electrify the country. 

In a few years a typical house will be able to store 100kWh+ in a car plus a tank of water, many houses with multiple cars a lot more.  It makes sense to encourage people to use this to to the maximum extent possible to equalise the load on the grid.  People will need to be incentivised to suffer a small inconvenience, but with a suitably slick control capability, whether via an app or physical, its not difficult to imagine the inconvenience being very small.  I think we are experiencing the tip of an iceberg with ToU tariffs and energy storage.  Its going to be massive IMHO.

Posted by: @jamespa

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think we are experiencing the tip of an iceberg with ToU tariffs and energy storage.  Its going to be massive

But it depends on smart meter being possible. We have one, with zero communications to the outside world. In this day and age it's a complete joke. Is anything being done to get rid of smart meter black spots - no as far as I can tell.

Why Scotland needs to rely on long wave radio, and not mobile network or internet, I have no clue.

Posted by: @Anonymous

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Posted by: @jamespa

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think we are experiencing the tip of an iceberg with ToU tariffs and energy storage.  Its going to be massive

But it depends on smart meter being possible. We have one, with zero communications to the outside world. In this day and age it's a complete joke. Is anything being done to get rid of smart meter black spots - no as far as I can tell.

Why Scotland needs to rely on long wave radio, and not mobile network or internet, I have no clue.

Indeed so.  I am told by a reliable source (someone who was working on the software) that the smart meter 'back end' infrastructure is being substantially upgraded. 

I don't actually know if the upgrade extends also to the underlying comms.  I think the challenge with this is that almost nothing is universal, so more than one carrier type needs to be supported; remember that there are mobile and internet black spots also.  Im guessing also long wave radio is an option in some comms blackspots, it propagates rather well. 

Posted by: @Anonymous

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Why Scotland needs to rely on long wave radio, and not mobile network or internet, I have no clue.

Because Arquiva have met their contractual obligation with 99.25% population coverage and the geographical rest is in the -  To bad, So sad, Never mind - category.

Posted by: @jamespa

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don't actually know if the upgrade extends also to the underlying comms.

Pretty sure they can pull off the shelf, smart meters that do long wave, cell phone or WiFi to suit the property and then just point it the correct IP address or communications centre. Installer then arrives at site with a phone app that checks the various signal strengths, then pulls the right tech out of his van, successful installs, first time, every time.

But that maybe a little too simple. Instead try 4 smart meter installations, before you give up and say it can't be done.

@johnmo They can use H-Lan which works at 5ghz for better communication but they only fit those when there's a 'failure' because it costs lots more than the usual smart meter comms gear.

But it still won't work in total black spots - that probably needs some kind of deal with Elon. Heaven help us... 

This thread seems to continue to be very relevant..

We have an EV overnight tariff and even a home battery. 

We are now considering installing a small heat pump but will need to work on our figures before progressing. This is since the 16kwh battery is unlikely to have capacity to run the pump, particularly during the winter months where we will have the pump, but also higher normal usage. 

I will need to research of there is a special tariff combining Intelligent Go with a few day periods for the pump.. I suspect otherwise, the business case will colapse ..

@batpred I am still on Cosy tariff and so far, have managed with the battery, to ‘weather the storm’ between the 3-3-2 hours each day. I have looked at the possibility of using an EV tariff (assuming I could avail myself of such a scheme without even a push bike to my name) but, suspect that the ~5 hours of overnight cheapest rate would not allow me to ride through the other ~19 hours relying on 27 kWh of battery storage. I am too lazy to try the calculations on this - but I suspect that even current peak charges would leave me worse off than Cosy rates allow for. Crystal ball is missing right now so who knows what November 2026 tariffs are going to look like! Arrrrggghhh!

As you may remember, I did write to Greg J. a while back suggesting that Solar +Battery + Heat Pump users might be considered as a group worth a special tariff and an assistant replied thanking me for me suggestions and that he would forward the details to the appropriate department. I might go blue in the face meanwhile but one can but hope, for as I pointed out, Heat Pump users might well equate to some EV Car users’ consumption.

Regards, Toodles.

@toodles Hi. I am quite happy with Cosy Fixed at the moment as i dont have an EV or Solar but I do now have batteries to 18.2kw. 
The 3-3-2 enables me to discharge to the home and then recharge at the cheap cosy slots to the extent that all my usage is at the lowest Cosy rate.
In fact in these milder temperatures I can export to Axle VPP (very lucrative) and export to Agile Outgoing Octopus, admitably only for pennies.

If i could only charge the batteries at very cheap rate in the night on an EV tariff then my batteries would soon run out before the next charging slot. So happy with Cosy as is and probably that demonstrates the varying tariff needs, in my case without an EV or solar but with Heat pump and batteries.

By the way, I think its really a stretch to call Cosy a heat pump tariff if you dont have Batteries.
I couldnt get on with the periodic heat and off that cosy seems to expect so added the batteries.

@richard24738 Indeed, Cosy tariff wouldn’t work very well without a battery - unless one’s home was super insulated! Axle VPP isn’t yet compatible with my Tesla Powerwall 2 kit but I have been exporting a few kWh’s per day more recently (that is, when the Sun doesn’t have a fit of shyness all day). My Tesla kit is set to charge the battery, then the MyEnergy Eddi charges the Sunamp Thermino heat battery, any left over goes to the grid, but I make sure the all-electric household needs are met before the grid sees any! Regards, Toodles.

@toodles Thats a shame you cant export to Axle. Currently pay £1 / kWh with a guarantee minimum of £10 per month. Surprising with the number of tesla batteries around. It will be interesting when tesla start offering tariffs.

@richard24738 Yes, I’m waiting in anticipation for Elon’s offer… Toodles.