• General

  • Release 441 - Scheduled Export fix

Ifgow We could do yeah - though it would mean that you may risk drawing from the grid during a time when the prices are expensive, as we would only revert Eco back at the end of your export window.

      admin last night again export stopped about 3h early and about 40% higher than stop export SOC - surely that can’t be right?

      Regards,

      Iain

          Ifgow Your SOC was 88%, your target stop SOC specified was 15%, at a discharge rate of 3.0kW and a battery capacity of 9.5, it would take roughly 138 mins, or at 2:23.

          It does look like your battery discharge rate was 1500W if I read the chart correctly?

          It might make sense for us to set that to max rate, which the calculation relies on.

              admin I’ll try that, but one battery mantra seems to to charge/discharge at around 50% to prolong the life of the battery. Could the calculation not read the set discharge. Rate and use that value?

                  Ifgow Yep - we can do. We'll make it an option for Giv users. Much trickier to do on Growatt due to undocumented and not officially public API.

                      admin sounds good, have reset battery rates for now, and left settings to run tomorrow morning if the solar energy prospects meet the criterion.

                        @Ifgow This has now been rolled out and is available in Release 640.

                        By default, for Giv users the export schedules will calculate the adjusted end time based on the currently configured discharge schedule.

                        If toggled off, 100% discharge rate will be used.

                          a month later

                          I'm sorry but, having read carefully through this thread, I still don't understand why my Scheduled Discharges are stopping earlier nd at higher SOCs than set. My AIO charge and discharge is set to 6kW, as per specifications. I'm away from home with only fridges and freezers running and I want to get through 2 complete charge and discharge cycles per day to get max benefit from Agile and solar but the discharges never complete.
                          grounded-child

                            JRWM47 Maybe the discharges don't happen at the 6kW rate?

                            With your 13.5 battery and leaving some margin, for an export between 6:00 and 9:00, you would expect the battery to be empty at shortly past 8:00AM at a discharge rate of 6kW.

                            Clearly, if there is some DC-AC conversion going on too due to some solar generation, this likely has an impact as well.

                            With many more schedules now available, you could work around this by setting up a subsequent second export schedule with a SOC trigger condition, and space it 5 mins or so apart from the previous export.

                              Thanks for the reply.
                              I've just checked back using the GE app and, yes, over the last few days all my AIO discharges have all been limited to around 3.5kW. The question now is 'why?'.
                              The GE AIO is rated at 6kW for charge and discharge which is what I have told WW. It can't be due to solar generation as discharges starting at 22:00 when it's dark are also limited to 3.5kW.
                              I understand your suggested work-around but I'm obviously eager to export my excess stored energy as often and as rapidly as possible.
                              Any suggestions from WW admin or other users would be most welcome.

                                On further investigation, I think it's a G98/G99 issue with my DNO. With GE now shipping AIOs which can discharge at more than the single-phase G98 limit of 3.68kW, I imagine this will be an increasingly common problem. I am applying for G99 and meanwhile will set my discharge period to 4.5 hours. Thanks for pointing me in the right direction.