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!
OK, sorry I didn’t get it…. we have almost 8kwp, half of them facing S/SE and half N/NW
I guess you know though that the grass is always greener on the other side!
We may have had a nice energy yield but we are facing a draught… last December, Athens was declared in a state of emergency as the water reserves level had dropped to 40% of what it should normally be. Fortunately we had a lot of rain in January and February plus some snow and the situation has improved.
@mk4 We have 8.1 kWp. but less than ideally orientated with some degree of shading at times. As to the rain, well …. we seem to have had our fair share lately! (SE England) Regards,Toodles.
Toodles, heats his home with cold draughts and cooks food with magnets.
Posted by: @toodles@mk4 We have 8.1 kWp. but less than ideally orientated with some degree of shading at times. As to the rain, well …. we seem to have had our fair share lately! (SE England) Regards,Toodles.
If your inverter can support two strings, perhaps you could have all the shaded panels in one string and the ones that are never shaded in another. We did this with our panels, the ones placed W/NW do not get much light during winter but they thrive in the summer, so we have them in a separate string.
BTW, I love your trailing signature, I’ve meaning to tell you for some time, but only after our last interaction did I get its full meaning. I guess humor is not my strongest of points….
@mk4 All 21 panels have their own Enphase IQ7a microinverter and these are sent as two arrays to the Tesla Gateway. 5 on house roof, 4 on flat roof, 2 on workshop roof and 10 mounted in the garden. Glad you like my sig. line😊. Toodles.
Toodles, heats his home with cold draughts and cooks food with magnets.
Just checking with you. Did your batteries dump all their charge in the small hours of this morning please and then didn’t recharge until the cosy cheap rate starting at 13.00? Mine did, for no good reason I can find. In the past there was an occasional battery calibration event, but I think I can remember being informed somehow when this was the case. Very odd.
I’ve also noticed they fully discharged, to 0%, rather than the 5% minimum charge level I set. I guess that suggests a recalibration.
@papahuhu Hello, err… no, I still saw some 32% or so battery capacity left this morning but, I had set my system to prioritise the solar supply yesterday morning as we have had several days of charging from the grid only to then send solar generated energy back to the grid later in the day! I have never seen any ‘recalibration’ messages or evidence of a full discharge that I had not set up myself. Regards, Toodles.
Toodles, heats his home with cold draughts and cooks food with magnets.
This is it, but I never saw any banner. Maybe PW2 didn’t do it, isn’t the battery chemistry different if I remember.
Powerwall 3 Calibration
Powerwall 3 periodically calibrates to ensure optimal battery performance. Calibration ensures that your Powerwall 3 continues to operate accurately and efficiently for your home.
Note: The calibration process is normal and is not an indication of any issues with your Powerwall 3.
When Will Calibration Happen
Due to normal cycling of the battery during daily use, calibration can occur naturally and will have no impact on your system’s operation. However, if daily cycling is not sufficient, the system will undergo a dedicated calibration cycle every 30-90 days.
How to Know When Calibration Is in Progress
When your Powerwall 3 is undergoing calibration, you will see a ‘Calibration in Progress’ banner in the Tesla app. This banner will remain visible until the process is complete.
Posted by: @papahuhuI’ve also noticed they fully discharged, to 0%, rather than the 5% minimum charge level I set. I guess that suggests a recalibration.
It looks like a battery calibration operation to me. When my system (GivEnergy) does a battery calibration the reserve value of 4% in my case is ignored and the battery is drained to zero before doing a 100% charge.
Regards
5 Bedroom House in Cambridgeshire, double glazing, 300mm loft insulation and cavity wall insulation
Design temperature 21C @ OAT -2C = 10.2Kw heat loss, deltaT = 8 degrees
Bivalent system containing:
12Kw Samsung High Temperature Quiet (Gen 6) heat pump
26Kw Grant Blue Flame Oil Boiler
4.1Kw Solar Panel Array
34Kwh GivEnergy Stackable Battery System
-
Plug and play solar. Thoughts?
2 months ago
-
Supplier choices for PV system
2 years ago
-
Any advice for new solar installation? SW facing extension
3 years ago
-
First 6 months
4 years ago
Currently viewing this topic 9 guests.
- 27 Forums
- 2,792 Topics
- 66 K Posts
- 3,613 Online
- 7,197 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Heat pump branding. Clever, contemporary… or a bit too much?
I think Heat Geek have done an amazing job on their bra...
By Tomtheheatingengineer , 7 hours ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
I have just had 3 heat loss surveys, one by heat geek o...
By David , 7 hours ago
-
RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
I think that's the key question. After all inverter uni...
By Prunus , 9 hours ago
-
RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 9 hours ago
-
RE: How should the Boiler Upgrade Scheme be reformed?
A unit which uses water to transfer the heat/chill from...
By Temperature_Gradient , 10 hours ago
-
RE: Renewables & Heat Pumps in the News
With regards to the BUS grant raid, I gave it more thou...
By ASHP-BOBBA , 10 hours ago
-
RE: Why are ASHP installs so expensive?
The whole system seems to work on the basis of...
By ian33a , 11 hours ago
-
RE: Missing flow temperature in Heat Geek proposal
Good plan. If you can get half hourly meter readings a...
By JamesPa , 16 hours ago
-
RE: Heat Pumps Without Grants: Would You Have Installed One & Will You Now?
@editor Most certainly. The heat pump was an ideal s...
By Abernyte , 16 hours ago
-
Although regulations may well vary from country to coun...
By Majordennisbloodnok , 16 hours ago
-
RE: Does anyone have experience of a smart water meter?
Yep I caught our slow leak from a £100 bill rise 8)
By EtchedPixels , 16 hours ago
-
RE: Do You Need a Buffer Tank or Low Loss Header for Underfloor Heating in a Large Property?
@jamespa in some cases, failing the Turing test might b...
By GrahamF , 20 hours ago
-
RE: Passiv Smart Thermostat - Help & Forum Support
@energystoragetech The heat capacity of some...
By JamesPa , 21 hours ago
-
RE: tepeo ZEB UK Support & Info Thread
Sorry you are correct, I was remembering figures from t...
By JamesPa , 1 day ago
Members Online
No online members at the moment







