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Last seen: May 26, 2026
Check the image below for a typical charge/discharge curve at different rates for LFP. The 'middle' part is, for all intents and purposes, fl...
LiFePO4 (LFP) does not mind going to 100% and 0% state of charge. In practice, stay below 3.55V per cell at the top, and say 3.0V at the bott...
You can not accurately determine state-of-charge of a LiFePO4 battery by voltage, with the exception of the so-called 'knees', that is, where the batt...
Actually not that far, however, the cost of my initial system (10kW solar and 28kWh battery, with inverters, charge controllers, etc.) was sl...
I have 120kWh of LiFePO4 batteries (DIY), which I will likely expand this year to 200kWh. The original configuration 7 years ago was 28kWh with cells ...
In my opinion, it's useless then. If you are considered to have authority over who can do the work, and are intended to be a form of vetting ...
For reference, my house heat loss only gets to 8kW with an inside temperature of 22C when it's -40C outside...
Yes, you need something like this: This kind of set-up is very common in places that use wood boilers here in Finland. ...
Or as we call it here, Tuesday 😉
@toodles The difference between Tukes and MCS, as far as I can see, is that MCS is optional, and has no power to enforce anything. Tukes is a gover...
So, I'm off-grid here in Finland. I have around 14kW of solar installed at the moment, and will be adding another 5kw of vertical solar panels this ye...
This seems insane to me. It feels like there are several issues in the UK, not even technical, that make heat pump installs fail. Let me preface this ...
Latest Posts
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RE: Heat Pump Overpromising – What Were You Actually Told Before You Bought?
No, I agree entirely. There shouldn't be a need for an ...
By Majordennisbloodnok , 1 hour ago
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RE: How many people are happy with their ASHP and do you believe them?
I agree, and not. Energy prices are a largely politica...
By JamesPa , 2 hours ago
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RE: Solar Produced vs Home Consumed
All inverters will use solar power in preference to dra...
By JamesPa , 2 hours ago
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Yes, you will need to notify them even if the inverter ...
By Old_Scientist , 2 hours ago
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RE: Heat Pump Manufacturers Recommending Buffer Tanks
@tony-stolz, I think @jamespa has already covered the h...
By Mars , 15 hours ago
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RE: Heat Pump Operation in Summer - Valliant 7kW
I do the same: cool my large buffer (3000L) to 10C, pum...
By upnorthandpersonal , 24 hours ago
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@editor "The interesting bit is that many modern invert...
By Singlespeed , 1 day ago
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RE: Ecodan & MelCloud scheduling
With the prospect of warmer weather this week, I brough...
By downfield , 1 day ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
I reached out to MCS directly last week on this and her...
By Mars , 1 day ago
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RE: Help me keep the faith with my air source heat pump installation
My heating developed a really severe case of noise and ...
By JamesPa , 2 days ago
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
@l2jad I was just thinking all things being equal. Our ...
By AndrewJ , 2 days ago
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Hi, Does anybody have experience with Heat Geek insta...
By sttpd1917 , 3 days ago
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I will soon be struggling. Admittedly it is the summer,...
By Batpred , 3 days ago
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RE: Indevolt Batteries UK Support & Info Thread
Not known yet. I've asked a local Councillor to follo...
By Transparent , 4 days ago
