That is indeed the reason.
No the allow positive is working fine, when you think about it, your consumption (use_kwh) will always be positive so the “allow positive” has no effect as everything passes it.
You really need to concentrate on the current values not the history, that’s why this hasn’t come to light sooner. If your import and use are always the same, that means generation is having no impact, this should stand out when you look at the current values because when you are producing more than you are consuming you are exporting, you should be showing zero import power and import_kwh should not be increasing.
This explains why the mysolar values at the foot of the page are consistently wrong (0%,100%,100%).
I have looked back through the threads and found the inputprocessing is in fact still incorrect. The correction made by Glyn to emoncms.org is not right and we are wrong to copy that.
There is a “quick fix” to add a minus input “solar” just above the “allow positive” but I would be tempted to just redo the input processing “correctly” by following the guide for type2
Although I have to say that guide could be clearer, that’s a whole lot of bold text given the statement in the blue box.
If you follow that guide your input process lists should end up as
| power1 | power2 | |
|---|---|---|
| 1 | allow positive | log2feed “solar” |
| 2 | log2feed “import” | power2kwh “solar_kwh” |
| 3 | power2kwh “import_kwh” | +input “power1” |
| 4 | log2feed “use” | |
| 5 | power2kwh “use_kwh” |
However, IMO that arrangement is vulnerable to minor errors creeping in because the input1 could change and/or not be the value that is persisted if using feedwriter. Plus I like to record the raw input data for debugging etc. So I would use
| power1 | power2 | |
|---|---|---|
| 1 | log2feed “grid” | log2feed “solar” |
| 2 | allow positive | power2kwh “solar_kwh” |
| 3 | log2feed “import” | +feed “grid” |
| 4 | power2kwh “import_kwh” | log2feed “use” |
| 5 | power2kwh “use_kwh” |
[although on emoncms.org, this will cost you slightly more because of the additional feed.]
Sorry i originally missed the error as we assumed emoncms.org to be correct, but in my defence I did refer to the current values being wrong at the bottom of the “correct” mysolar app. I hope this finally gets you sorted.