Last seen: Oct 7, 2025
Thanks for posting this, it's really useful, especially on the total cost of your system + installation costs. That's what always gets me - I know I'm...
They've all tooled up for 2030. Switching to a 2035 roadmap now, only for a potential Labour government to change it back to 2030 in 2 years would be ...
@allyfish Yeah, the Cosy tariff is particularly interesting with its two cheap periods: it means that I can charge the same battery twice a day, effec...
One thing to consider about buying a larger battery with the intention of charging cheaply overnight is how fast the battery is able to charge. If you...
My thinking was the same as yours - keep the battery on the DC side as there's one fewer AC/DC conversion loss. In my experience, the one-way loss i...
Selling electricity below wholesale cost at any given time is surely not economical in the long run, but I'd imagine that most people aren't as "savvy...
What have folks here made so far? My net electricity cost (i.e. import + standing charge - export) for my first month on Flux has been -£61.26 includi...
@noob Nope, I have a similar setup to you (full EV rather than PHEV is the main difference I think) and it's the same for me. Flux in summer and Go in...
Thanks! I'll be patient then and wait for my bill. Got a few things going to estimate it already, but it would be nice to know how accurate my calcs a...
I just signed up to Flux as the numbers made loads of sense for me (I'll be a net exporter for at least until September and have a battery too). Whe...
@Kev-M Understood - thanks for the clarification! Not pedantic at all and I'm always happy to be corrected 🙂 I do have a power trace and it does in...
I actually have some data on this from my own system: Hopefully you can see this rather ugly graph. What it shows is the flow and return temperatu...
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@agentgeorge unfortunately mine is a structure borne no...
By swwils , 1 minute ago
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RE: Controlling Daikin Altherma via P1P2 and Home Assistant
So to clarify (and rephrase the problem into my own ter...
By Majordennisbloodnok , 40 minutes ago
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RE: Free Ecoheat Heat Pump Install
This is an interesting way of looking at it, and I can ...
By Mars , 1 hour ago
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RE: Configuring third party dongle for Ecodan local control
That's a good spot and a valuable insight, @sheriff-fat...
By Majordennisbloodnok , 1 hour ago
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RE: Are We Sleepwalking Into Another Race to the Bottom?
@majordennisbloodnok And did ‘Honey’ order it for you? ...
By Toodles , 2 hours ago
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RE: Setback savings - fact or fiction?
@robs — thanks again for your detailed comments. Some r...
By cathodeRay , 15 hours ago
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RE: A Smarter Smart Controller from Homely?
@papahuhu I hope you get a swift resolution. Regards, T...
By Toodles , 19 hours ago
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RE: Poll for Time of Use, tariffs, technology
That’s fine by me too Major, I feel it is a sad reflect...
By Toodles , 20 hours ago
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Bingo. Sometimes a judiciously placed size 10 bovver bo...
By Majordennisbloodnok , 21 hours ago
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RE: Mitsubishi Ecodan 11.2kW heat pump with low COP
@ciocoiu-alexandru I can't provide the same level of di...
By Sheriff Fatman , 21 hours ago
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The three technical issues I'm considering are: BMS...
By Transparent , 23 hours ago
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RE: LiFePO4 lithium battery fires and explosions
@transparent Your post may fit better in th...
By Batpred , 23 hours ago
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RE: British Gas vs Octopus Energy vs Heat Geek vs EDF vs Aira vs OVO vs EON.Next vs Boxt
@jamespawhite, if you could be bothered, you could also...
By Mars , 1 day ago
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RE: Commencing on an ASHP Installation Process
I've got a bit of time to draft something today, so the...
By Sheriff Fatman , 2 days ago
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RE: Help with heat pump sizing
@amin I dont think materially relative to t...
By JamesPa , 2 days ago
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@majordennisbloodnok I have decided to take the plunge....
By TechnoGeek , 2 days ago
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RE: Different dT on each radiator?
I cant sorry. Its based on some calculations I did fro...
By JamesPa , 3 days ago
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RE: Help me keep the faith with my air source heat pump installation
@simonf thats interesting as I’ve noticed my flow and r...
By AdamK , 3 days ago

