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developer_mh last won the day on September 17

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  1. Hi Math, sorry for the late answer - I was a bit irritated as well, as the usual uninstall option seemed to have disappeared.. but then a colleague pointed me to the solution: You have to use the "old" version of the WIndows system settings feature to remove or change programs: Click on "Programs and features", search for PhotoPlan in the list, right click and select "Change". Dialogs will appear that let you uninstall PhotoPlan. Good luck, and kind regards, Martin
  2. Hallo Simon, sorry für die späte Antwort - deine Frage ist irgendwie untergegangen. Den Dachüberstand kann man ganz gut für alle vier Seiten einstellen, indem man den Haken "Gegenüberliegende Dachflächen gemeinsam editieren" rausnimmt, und dann für jede Dachfläche nur den Wert für die Trauf-Überstände eingibt: Beste Grüße, Martin
  3. Hi Burak, 2 MWp is really already a very large system, with about 6000 to 10000 modules depending on their power. If you use the 3D environment to design the system, PV*SOL might bring your computer to the edge of its power. Also note that PV*SOL is (still) a 32bit application, so there is a RAM limit of about 1.2 to 1.3 GB set by the operating system (Windows). This is - amongst other things - what limits PV*SOL in its capabilities. But good news is that we optimized RAM usage especially for roof top or open area mounting systems in the next release of PV*SOL premium (2020 R10), wh
  4. Dear Hugo, thank you for the input. We already have this feature request on our list. For very regular time shifts by 15 minutes you could use this feature here: But we know that this doesn't cover every tariff design (like yours for example). In order to estimate the cost effects of the 15 time shift, you could simulate it once with 0 minutes shift, and once again with 15 minutes. This should give you an idea of how the economics will behave. Kind regards, Martin
  5. Hey Miguel, the lifetime of the batteres is influenced by two effects: cycle loads and time. So there are the "cyclic lifetime" and the "calendar lifetime", the first of which we can calculate, and the second is more a number that is given by the manufacturer (determined by tests). The calculation of the cyclic lifetime is described here (at the end of that page, applies also for li ion batteries: https://help.valentin-software.com/pvsol/2020/calculation/battery-systems/lead-acid-batteries/ According the standards, we consider a battery as "dead" when it has reached 80% of
  6. Hi Joao, that is correct, our simulation core doesn't support simultaneous DC and AC coupling modes. We have it on our list but we can't give a scheduled date for that feature, I am afraid. In fact, there are a plenty of device topologies and most of all energy management algorithms implemented in battery systems available on the market that we are not able to reproduce in our simulation core. As you pointed out, the topology of a system, but also the management algorithms can heavily influence the energy flow through the system. We are aware of that and as I mentioned, we have that
  7. ps: die Quellenangaben zu den anderen Lastprofilen werden wir demnächst in der Hilfe beschreiben, danke fürs Drauf-Aufmerksam-Machen, dass da was fehlt. Viele Grüße, Martin
  8. Hallo Leman, in diesem Fall würden wir stark zur Nutzung der Lastprofile in der ersten Kategorie raten - Lastprofile aus Messwerten. Dort gibt es auch Lastprofile von der HTW Berlin und dem BDEW, die bestens dokumentiert sind: https://pvspeicher.htw-berlin.de/veroeffentlichungen/daten/lastprofile/ https://www.bdew.de/energie/standardlastprofile-strom/ Diese sind auch von der Auflösung her qualitativ höherwertig. Viele Grüße, Martin
  9. Hi Alexander, es handelt sich bei dem Absturz nicht um ein Performance-Problem, sondern um einen (zum Glück seltenen) Fehler bei der Zuordnung von Modulen und deren Schatten in 3D zu den Wechselrichtern. Für neue Fragen gerne einen neuen Thread erstellen, so bleiben sie auch für andere besser auffindbar. Danke! Viele Grüße, Martin
  10. Hallo Alexander, schönes Projekt hast du da! Hoffentlich wird das auch so gebaut Der Grund für den Absturz der Simulation ist mit dem nächsten Release (2020 R10) behoben. Ich hoffe, das es in nicht allzu langer Zeit auf den Markt kommt. Beste Grüße, Martin
  11. Hi Miguel, you can change the type of coupling in the battery system itself. Note that you can't change system database entries, you'll have to create your own, e.g. by copying an existing one: What I meant with connecting 3 equal DC coupled battery systems to 3 equal inverters is that. On the inverter page you have 3 times the same inverter: And then on the battery system page you'll have the battery system amount set to 3: Hope that clarifies the doubts. If you have questions, please let me know! Kind regards, Martin
  12. Hallo Stefan, guter Punkt, wir nehmen das mal auf. Danke und viele Grüße, Martin
  13. Hallo Alex, könntest du mir das Projekt mal schicken, dann kann ich schauen, woran es liegt und was man evtl. machen könnte. Gerne hier im Forum per privater Nachricht. Danke und viele Grüße, Martin
  14. Hi Reint, the easiest way would be to import the comma separated values in Excel so that they appear in their own column. Refer to this short guide here : https://support.microsoft.com/en-us/office/import-or-export-text-txt-or-csv-files-5250ac4c-663c-47ce-937b-339e391393ba The result would look like this: Then it should be easier to eliminate the columns that you don't need and compile the dat file as required. Hope that helps, kind regards, Martin
  15. Hi Miguel, that is correct, at the moment the battery systems can only be connected to one inverter if the battery systems are DC coupled. You can change the amount of (equal) battery systems, however, so if your three inverters are the same, you can have 3 x inverter "xy" connected to 3 x dc battery system "abc". Hope that helps, kind regards, Martin
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