Hey guys, I’m running 2x 8kWp Solar-Arrays, one beeing 30° South on the upper roof, one is 0° on the lower roof (easy access). During winter we have snow fall, and freeing the upper pv (3 story tall building) is a bit dangerous, so that one usually ends up in a snowy sleep from time to time. The 0…

@dognose Have you looked at enphase micro inverters?

[image] LX: Have you looked at enphase micro inverters? Yes, but these are a bit “too micro” for my taste. (One per panel, directly wired to a 230V-Connection, if I understand that system correctly) And the Main Design-Idea of running 230 VAC from Panel to Panel would be the opposite of my t…

Im using a Hoymiles HM300 to feed from a battery to grid. Thats its grid profile that it came with: [Screenshot_20240902-175010] [Screenshot_20240902-175019] [Screenshot_20240902-175028] [Screenshot_20240902-175037] [Screenshot_20240902-175045] [Screenshot_20240902-175053]

So for you the most interesting is this [image] Im reading this as: Up until 50.2Hz it will not limit its output power. From 50.2Hz upwards, it will derate 40% per Hz, i guess with no delay Going back down from the derate, it will ramp up the power again at 0.16% per second

Thx for the detailed answer, I checked the Hoymiles inverter, they look like an option. Do you know if the (optional) DTU unit is required at all? To me, it reads that this is mainly for infotainment purpose, but I would use a regular wired meter to measure production anyway. Tried to ask their su…

The inverter works out of the box, no DTU required. Im not sure about the functionality of the original DTU. Im using an open source version, ahoyDTU. Theres also another available, openDTU. Both require an ESP32/8266 and a NRF24L01+ RF module Im using it to set the inverters power as well as read…

Micro-Inverter that support MicroGrids / GridMG / Frequency-Shifting

DIY

m_ach (Michael Achenbach) 3 September 2024 16:18 8

With the openDTU/AhoyDTU and https://github.com/henne49/dbus-opendtu the Hoymiles microinverters will be visible in your GX device.

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Micro-Inverter that support MicroGrids / GridMG / Frequency-Shifting

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