Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Sustainable Sidetra...
Electricity, Tariff...
Who's your electric...
 
Notifications
Clear all

Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!

Who's your electricity provider and what's your tariff?

 
Page 66 / 66
Electricity, Tariffs, Monitoring, Electrics & Providers
Last Post by Old_Scientist 51 minutes ago
781 Posts
61 Users
400 Reactions
223.5 K Views
RSS
 Old_Scientist
(@old_scientist)
Honorable Member Member
Joined: 2 years ago
Posts: 533
26/08/2026 4:59 pm  

@papahuhu I prefer to look at it simplistically.

We drive around 8k miles per year, so at 4 miles/kWh that's around 2000kWh of electricity added to our consumption. Even charging at SVR, it's cheaper per mile than the diesel alternative at 13p/mile (currently). 

Having the car also opens up IOG as an option for us. I shall simply plug in the numbers to Tim and Kat's tariff optimiser and see what falls out the other end. No tariff is going to be optimal - IOG is cheap overnight but our house battery is not big enough to cover our use in winter. Cosy is great for the ASHP, and 13p per kWh to charge the car is still significantly cheaper than diesel in winter. Flux should still be highly profitable in summer as we export a significant amount at the low 10p day rate which could go into the car whilst still emptying the house battery at peak rate.

We are both retired and the car often sits on the drive for days, so we can be flexible around when we charge, especially in summer to capture excess solar before the Flux export peak.

I get what you mean about the car charger. We are on an 80A connection, so some common sense is required if charging at 7kWh. I may even start on a granny charger and see how we get on. I believe the car we are looking at is 'intelligent' in it's own right, so doesn't require a compatible intelligent charger to qualify for IOG. If the DNO refused permission, I'd probably just install a 32A CEE 'commando' socket and use a 7kW charger like this:

https://www.amazon.co.uk/dp/B0H9Y716C2?ref=emc_p_m_6_i&th=1

 


This post was modified 42 minutes ago by Old_Scientist

Samsung 12kW gen6 ASHP with 50L volumiser and large radiators. 7.2kWp solar (south facing), Tesla PW3 (13.5kW). Net Zero


   
ReplyQuote
Page 66 / 66
Forum Jump:
Next Topic  
Related Topics
Topic Tags:  electricity (5) , tariff (9) ,

Currently viewing this topic 2 users ( Toodles, Old_Scientist ) and 41 guests.

Recently viewed by users: Majordennisbloodnok 18 minutes ago.

Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Click to access the login or register cheese
Protected By
Shield Security PRO