Jason, The Conext XW+ in grid support, either grid support sell or self-consumption and during solar hours. The inverter operates in parallel with the grid but prioritizes renewable energy. At the end of the day, the inverter will decide which mode to switch next based on the battery voltage. Since in most cases the batteries are in reserve for a power outage, the inverter will go into passthrough mode. In passthrough mode the inverter support 100% of the loads utilizing power from the source (grid). In some cases, it is possible that inverter may be required to also charge batteries from the source provided that the charger inside the inverter is enabled, then the inverter will enter into charging while still supporting 100% of the loads with the source, this is not common, since it is preferable to only charge batteries with the array. Additionally, the Conext XW+ is not a power conditioning device, which means that it will not clean the source, the passthrough power quality that the loads will see is the quality of the source.
Sandra Herrera [email protected] From: RE-wrenches <[email protected]> On Behalf Of Jason Szumlanski Sent: Friday, November 1, 2019 5:16 AM To: RE-wrenches <[email protected]> Subject: [RE-wrenches] Conext Inverter Grid Support Mode [External email: Use caution with links and attachments] ________________________________ When the inverter is using this mode, at night or when there is not much PV power, are the laods seeing inverter output power or does the grid pass through the inverter, as in bypass the inverter directly to the loads. The manual says: "In the morning, the PV system begins 3-stage charging of the batteries at bulk stage and power from the grid passes through the XW+ (including XW) to the loads." That is not really clear. What does "passes through" mean? Does that mean the grid charges the batteries with the integrated charger simultaneously with the inverter outputting AC power, or does that mean the utility power bypasses the inverter and powers the loads directly while the PV system gets the batteries charged up? While on the subject, and I don't think this is possible, but I have a Conext off-grid client that wants to have "clean" inverter power all the time rather than the generator power bypassing the inverters and powering the loads directly during battery charging. I told him it is not possible without using an external battery charger and eliminating the generator AC input to the inverter. I think I am correct on that, but I'll take any suggestions! Jason Szumlanski ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. ______________________________________________________________________
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