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Electricity, Tariffs, Monitoring & Providers
Last Post by Kev M 4 years ago
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 batalto
(@batalto)
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Joined: 4 years ago
Posts: 1091
Topic starter 22/11/2021 4:05 pm  

Hi All,

I will getting my November bill from Octopus shortly (in the next day or two) so I'll be sharing on here my costs. I'll share how much it is total, how much comes at the 5p rate and how much on the 15p rate plus a blended costs.

I will also breakdown the cost per m2 of my house so people can compare costs. Of course total power bills wont be the same for everyone and our house has two small children so we use the washing machine and tumble drier every day. But given November is supposed to be 12% of your total yearly costs for heating (give or take) it should provide an interesting feed. I'll also share total kW used by the ASHP for the month too.

12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 3384
23/11/2021 8:46 am  

Sounds interesting. Looking forward to hearing more.

Pre-order: The Ultimate Guide to Heat Pumps

Subscribe and follow our Homeowners’ Q&A heat pump podcast


   
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 batalto
(@batalto)
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Joined: 4 years ago
Posts: 1091
Topic starter 23/11/2021 11:38 am  

Just waiting on the full bill to appear, but I can see I used 1031.88 kW from the 21st of October to the 20th of November at a cost of £110.33

Cost per kW works out at 10.689p

Of course this is my whole bill for all power. I am tracking my ASHP, but not 20th - 20th. I am tracking monthly, so will have figures at the end of the month

12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
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 batalto
(@batalto)
Famed Member Member
Joined: 4 years ago
Posts: 1091
Topic starter 23/11/2021 2:08 pm  

below is the detailed breakdown of my use

image

Here is an extract from a cold, high use day

image

Currently I also have an issue with solar shading due to building work next door. Essentially my solar is making, maybe 1/4 of what it should be. So my batteries are more or less useless at the moment in the day.

12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
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2
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Jeff
 Jeff
(@jeff)
Noble Member Member
Joined: 4 years ago
Posts: 482
23/11/2021 5:47 pm  

Does this include any EV charging? 


   
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 batalto
(@batalto)
Famed Member Member
Joined: 4 years ago
Posts: 1091
Topic starter 23/11/2021 6:28 pm  

@jeff if you work for octopus... Yes of course...

12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
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2
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 witchcraft
(@witchcraft)
Reputable Member Contributor
Joined: 4 years ago
Posts: 91
30/11/2021 10:14 am  

@batalto My fix on Octopus Go is about to finish, the most of the replacement tariff is quite simply staggering.


   
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 3384
30/11/2021 10:20 am  

@witchcraft, what’s the new tariff likely to be? Around 21p/kWh?

Pre-order: The Ultimate Guide to Heat Pumps

Subscribe and follow our Homeowners’ Q&A heat pump podcast


   
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 witchcraft
(@witchcraft)
Reputable Member Contributor
Joined: 4 years ago
Posts: 91
30/11/2021 10:29 am  

@editor Much worse than that!  This is with a loyal customer discount, the basic GO tariff is worse

Day rate 29.36p per kWh
 
Night rate 15.36p per kWh
 
Standing charge 24.10p per day

   
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 batalto
(@batalto)
Famed Member Member
Joined: 4 years ago
Posts: 1091
Topic starter 30/11/2021 11:06 am  

Heat pump used 1,012kw for the whole month: Avg: 33.7kw per day or 3.8kw per m2 of floor space for the whole month

 

@witchcraft I just had a look at the current GO tariff to see what it is:

Night (00:30 - 04:30) - 5p/kw

Rest of the day: 24.14p/kw

Standing: 18.35p per day

As a note, I am in the south.

12kW Midea ASHP - 8.4kw solar - 29kWh batteries
262m2 house in Hampshire
Current weather compensation: 47@-2 and 31@17
My current performance can be found - HERE
Heat pump calculator spreadsheet - HERE


   
ReplyQuote
Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 3384
30/11/2021 11:06 am  

@witchcraft, that is a massive increase. I've been following the developments in energy circles and recent saw that if it had not been for the price cap, many energy providers would be charging upwards of 40p/kWh to be profitable. It's a very unfortunate situation for heat pump owners.

Pre-order: The Ultimate Guide to Heat Pumps

Subscribe and follow our Homeowners’ Q&A heat pump podcast


   
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 witchcraft
(@witchcraft)
Reputable Member Contributor
Joined: 4 years ago
Posts: 91
30/11/2021 11:17 am  

@batalto Yup I am in Suffolk and was on 5p off peak 14p peak.  If you look on Octopus as a customer there are no other options (including Agile) I strongly got the feeling they're are not looking for new customers at the moment

 

This post was modified 4 years ago by witchcraft

   
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