dirk pitt

Hi, this post is old but I answer my experience. using an infinisolar 10kw tri with zero output to grid function and it is working well. the overshoot is sometimes about 20W when charge is changing too quickly. the energy meter is the EASTRON SDM630 conntected to the modbus card in the inverter. I have writen a document to explain in details how to setup this but this is in French. zéro injection infinisolar 10kW triphasé.pdf

Hi to everybody, I thought it is a good start my first post with showing what I have made. the existing grid is 3 phases on a large area with 3 small lodges for vacancies rental. (+ workshop + office) the target was to reduce grid counsumption and being able to feed the internal grid between the 3 lodges in case of black out (quite often in summer) the main issue was that each lodge has its own elec board, the distance between lodges is large and distance to PV is large also. because of black out, the idea is to have battery storage. so if battery storage, the next idea is to use it, so zero feed into grid. So I end up with 100% injection solution in the local private network with zero grid injection and a supply switch to be able to feed the private network in case of black out. it took me some time to setup the energy meter, the modbus card and the 3P inverter to work correctly in this mode but it is so satisfying to see the energy meter regulating import power to ZERO !!!! If some are interested for same configuration, I can help. the PV field is made of 28 panels 290W each arranged in two fields of 14 series(Est and West field for more efficiency with sunrise and sunset shadows) other intereting point is the use of second hand small electric car batteries that I reworked to accordate as a 48V 300Ah Lifepo4 battery. here are some pictures