Hi,
I am on build 147 and today I noticed that the % solar calculation does not work anymore.
It remains at 0%.
Also the number of sunshine hours has stopped working.
I do have data for solar and UV coming from my WeatherFlow Sky station.
I am running 147 for quite a while now and haven’t got a problem since today.
Also I haven’t changed anything in the setup or solar setup.
Restarting Windows and WD does not help.
Anyone else experienced this or has a solution on what to do.
TIA
Several of us here have been having issues with sunshine hours in WD. All I can suggest is that you email Brian directly and explain your issue. Something has not been correct for some time with the latest version.
Stuart
Is Brian the only official support contact?
yes, he is the author
I have exactly the same issue - % solar calculation does not work anymore from a few days ago.
Using 1 wire solar in jar
Andy
Update.
WD Version 147
It seems sunshine hours and % solar are still being calculated but not at the moment I checked those.
% is always 100 for the whole day.
That wasn’t the case always, always lower then 100% and I have been checking this frequently.
WeatherDisplay thinks it is much later then it really is.
WD says my Max radiation for lat/date is 0% at 19:02
At that time my WeatherFlow Sky still measures about 80 to 100 W/m2
The logfile shows the radiation is 0 at 20:30.
That is 1 and a half hour later then WD.
That brings me to my solar setup window.
I am always struggling with these settings when wintertime/summertime transition.
No transition yet but I doubt now if these settings are correct.
Daylight saving in use (Does auto set)
Do not auto set time zone
I am east of GMT and my timezone is GMT+1 (When NO Summertime)
Please email Brian directly about this. It has not worked correctly since version 146 (I think). I have tried emailing him about this but had no reply. He does not as far as I am aware frequent this forum any more so direct contact is the only way (hopefully) to get anything done about this issue.Something is very wrong in the WD code when it comes to the calculation of the expected max solar value for each minute but there is nothing we can do to fix this.
Stuart
Ok Thanks
I understand but I like to know if my settings are correct.
CJ
I’m no expert, but try un-ticking Do not set auto time zone.
These are my settings. But remember I’m in Western Australia…
Well I emailed Brian about this and got this “i have made no changes that i can think of so i have no idea sorry ” so I think emailing Brian is your next coarse of action
The issue some of us have is with the expected max value which is used in the % sunshine hours calculation. In my case I’ve not touched my setting for some years since Brian sorted it originally. However now I can’t rely on it and the other day WD showed over 10 hours of sunshine which patently was not possible. I also have CumulusMX running and it uses the same sensors, showed 0 sunshine hours. On looking at my custom log file recording expected max values showed WD had values at solar mid day over 200w/m2 too low which explains why sunshine hours was wrong.
Also when checking expected max values at other times the error was inconsistent, sometimes reasonable others too high and others too low. None of this happened prior to version 147.
Stuart
looking at that the max solar is wrong should follow over the top of your yellow solar plot so yours has the same problem
today was cloudy with rain here build 145 had no sunshine but build 149 (latest) shows 1.47hrs so sunshine i believe b145 is correct
Just to indicate the issue with expected max solar I have gathered data from CumulusMX and WD to show the discrepancies between them. The data is from 11th September and is around solar noon. The columns are Date, Time, Actual Solar Reading, CumulusMX Expected Max, WD Expected Max and you can see that the WD values are significantly lower than the CumulusMX values which in turn increases the sunshine hours recorded. All values are w/m².
2023-09-11 12:00:00 548 677 528
2023-09-11 12:01:00 544 677 529
2023-09-11 12:02:00 535 678 529
2023-09-11 12:03:00 536 679 529
2023-09-11 12:04:00 532 679 530
2023-09-11 12:05:00 544 680 531
2023-09-11 12:06:00 488 681 531
2023-09-11 12:07:00 503 681 532
2023-09-11 12:08:00 517 682 532
2023-09-11 12:09:00 534 683 533
2023-09-11 12:10:00 545 683 533
2023-09-11 12:11:00 542 684 533
2023-09-11 12:12:00 546 684 534
2023-09-11 12:13:00 546 685 534
2023-09-11 12:14:00 551 685 535
2023-09-11 12:15:00 555 686 535
2023-09-11 12:16:00 556 687 536
2023-09-11 12:17:00 519 687 536
2023-09-11 12:18:00 554 687 536
2023-09-11 12:19:00 543 688 537
2023-09-11 12:20:00 536 688 537
2023-09-11 12:21:00 549 689 537
2023-09-11 12:22:00 555 689 538
2023-09-11 12:23:00 554 690 538
2023-09-11 12:24:00 558 690 538
2023-09-11 12:25:00 554 691 538
2023-09-11 12:26:00 556 691 539
2023-09-11 12:27:00 558 691 539
2023-09-11 12:28:00 557 692 539
2023-09-11 12:29:00 558 692 539
2023-09-11 12:30:00 560 692 539
2023-09-11 12:31:00 559 693 540
2023-09-11 12:32:00 564 693 540
2023-09-11 12:33:00 562 693 540
2023-09-11 12:34:00 555 693 540
2023-09-11 12:35:00 555 694 540
2023-09-11 12:36:00 563 694 540
2023-09-11 12:37:00 567 694 540
2023-09-11 12:38:00 521 694 541
2023-09-11 12:39:00 558 694 541
2023-09-11 12:40:00 582 695 541
2023-09-11 12:41:00 569 695 541
2023-09-11 12:42:00 363 695 541
2023-09-11 12:43:00 242 695 541
2023-09-11 12:44:00 597 695 541
2023-09-11 12:45:00 607 695 541
2023-09-11 12:46:00 598 695 541
2023-09-11 12:47:00 610 695 541
2023-09-11 12:48:00 578 695 541
2023-09-11 12:49:00 574 695 540
2023-09-11 12:50:00 550 695 540
2023-09-11 12:51:00 566 695 540
2023-09-11 12:52:00 559 695 540
2023-09-11 12:53:00 589 695 540
2023-09-11 12:54:00 602 695 540
2023-09-11 12:55:00 601 695 540
2023-09-11 12:56:00 596 695 539
2023-09-11 12:57:00 582 695 539
2023-09-11 12:58:00 569 695 539
2023-09-11 12:59:00 569 695 539
Stuart
@dcrooks I have used your settings in my maxsolar calculator to determine what your expected max should be and find you do have an issue which has already been said!
The first screen showed 204 as expected max and should be 300, the second showed 626 and should be 750, so these lower values will increase your sunshine hours potentially, if it is actually a ‘gin clear’ sky then you might expect the high values of sunshine hours but when the sky is not ‘gin clear’ then you can expect artificially high sunshine hours which is what those of us here have been seeing.
Stuart
I was responding to the OP issues to show my build 149 and Tempest is providing data.
Apologies sometimes it is easy to misconstrue what is going on.
Stuart
Cronweatherflow 7.1
I have no problem with solar from my weatherflow sky.
My sunshine hours are being calculated until 19:00
Max expected solar reading after 19:00 is 0 which is incorrect.
That’s why the sunshine hours stop counting.
Max expected solar reading should be 0 at around 20:30 for my position.
I have Unchecked Do not auto set timezone but that makes no difference.
Max expected solar reading still 0 at around 19:00.
My sunshine hours today 9:28.
Official numbers for my place was 3.8