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Showing content with the highest reputation since 06/09/2020 in all areas

  1. 1 point
    i tried to record a similar video for one of our projects but the animation is available only for year 2017. is it possible to select the current year. i know, this may not make a big difference but, you know, marketing people can be really annoying to get these details right. no offense to marketing people reading this 😜
  2. 1 point
    Hi Ricardo, thank you for notifying us of the missing inverter. I will forward this request to our database team, so that they can take care of it. You can also write to them directly for future requests at database@valentin-software.com. Kind regards, Martin
  3. 1 point
    This is a screenshot recording of the above residential development in Cornwall, UK. •90 x Candidate Properties •750 x SunPower Maxeon3 370W All Black panels in-roof •1,320m² total solar PV roof coverage •Annual Energy yield of 270,000kWh •Annual 〖CO〗_2 emissions avoided 163,000 kg •25 year Solar Panel warranty •12 year Inverter warranty •10 year Workmanship warranty Development 5.mp4
  4. 1 point
    Dear Natheera, the climate data we use in PV*SOL is from Meteonorm, that is correct. The Meteonorm climate data are based on various sources of radiation measurements (ground stations, satellite) , with different time ranges (e.g. 1961 - 1990 or 1991 - 2010 and so on). The availability of climate dataset source varies from location to location. You can find more on that topic here in the manual of Meteonorm in Chapter 3.1: https://meteonorm.com/assets/downloads/mn73_software.pdf This information refers to a another type of product by Meteonorm, historical time series with one hour resolution. These are not climate data files which we normally use for simulation, as they are not representative. Generally it is advised to use the climate datasets with the most recent years that are available, that is correct. The availability of high quality long term measurements however is distributed very unevenly around the globe, however. Hope that helps, kind regards, Martin
  5. 1 point
    Hi K24, as Vishnu pointed out, the activation of minute values is most of all important if you have sizing factors fo above 115 %, or if you have battery systems or electrical appliances that are involved. If your DC/AC ratio ist about 1, and you just want to analyse the feed in, you might be well off with hourly values. But I would always recommend to compare the results at least once. Just simulate your PV system with hourly values, save the results somewehre, and then simulate the same system with one-minute values. Then you'll directly see the differences for your specific case. Our recommendation for the diffuse model is Hofmann (disclaimer: that is me), but we don't recommend it just like that, we have scientific evidence that it performs best under nearly all conditions (especially when using one-minute resolution). See more on diffuse irradiation models here: https://help.valentin-software.com/pvsol/calculation/irradiation/diffuse-irradiation/ Kind regards, Martin
  6. 1 point
    I am not sure about diffused radiation model but it is a good pratice to activate minute values when DC/AC ratio is above 1,15 and with batteries. It almost takes forever for the simulation but still
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