JoanTheSpark

I did download the manual from a solarshop website in Thailand. Pricewise they compare to the Infinisolar models from Voltronics, judging by that website (which is at least 200% over alibaba prices btw). The supplier that made me aware of the unit from a shop on alibaba doesn't seem to know much. But as it's from China the company might actually have extended holidays right around now, so probably just need to be a bit patient with them - but I don't have high hopes of this unit being the right one for me. ;-) PS: I imported my infinisolar myself. Local distris put insane amounts of profit on top and if something breaks I can repair it myself.

Well, I sent their contact mail address 2 messages so far and got no reply yet. Will try a 3rd time. The manual definitely doesn't mention anything about stackability and/or zero export - two features I certainly need. I really hate being dragged into needing to do this myself in the end ya know :-(

I stumbled upon a - for me - new inverter that is hybrid, IP65.. Lantrun Aegis series. Now I naturally wonder (as that unit seems to tick all my boxes, except for stack-ability were I don't have a nay or yay yet) if anyone has experience with them? Thanks.

Any brand out there that shares the 'internal' DC bus between the units (400VDC) to reduce conversion losses? I really don't like the European approach of using the mains line between the separate components as it just means more conversion losses. The other end of that spectrum are those blue boxes - afaik, please correct me if I'm wrong - that usually share the energy via the battery bank, that usually means 48VDC or thereabouts. The Infini's for example have a 400VDC bus internally that is used to move energy from the sources to the sinks (battery <> solar <> mains), the grid - at least on the 3kW unit I got here - is separate and only 'patched' through. Naturally they do not share that bus with the other units if you stack them, but it would be nice - especially considering that some server centers are using 380/400VDC distribution within their buildings - there could be synergy effects there (no need to reinvent the wheel for parts of the system). Also a lot of loads around the house these days would work perfectly fine with 400VDC as the first thing they do with the mains is rectify it (even fridges or AC.. they come with VFDs these days to make economic partial load and low-in-rush-currents possible). The parts this puzzle is missing are 400VDC sockets/plugs and safety devices for the DB. PS: we got hager RCBOs as well here.

Oh, French design.. well that explains the internals of the Infinisolar 3kW I got here - especially the bolt-on-attitude in there. You wouldn't know - by any chance - where the Growatt x000MTL series originated from? On the inside they look pretty well designed, the complete opposite of the Infini. Funnily enough, the Growatt company now also sells rebadged Infinis and Axperts under their label it seems. Currently waiting on them for a PI of the 5000HYP model. To bad there isn't a hybrid Growatt based on the MTL series with stacking option - I'd be totally over that.

So Imeon inverters (is that brand or model name) are the blue prints for the Voltronic Infinisolars? Are the Imeons IP65+ and stackable by any chance?

Well - was worth a shot ;-) I'll get my hands on the 5kW model then. Thanks for the responses. Will keep you posted how I go.

Specifically I'm referring to the Infinisolar 3kW unit (no plus). I'm fully aware that the manual and any brochures say it's not possible, but I read you guys talking about firmware and exploring stuff, I thought I might just ask in case someone got something done in that area. As the bigger brothers of the same concept do have that feature and 'all there seems to be needed' is a 14 pin connector to the controller board + a 2 pin connector for I suppose power of that parallel board. It's also that during my recherche's on the net I stumbled upon a lot of rebadged units of that Voltronic - Infinisolar 3kW unit and one of the preliminary manuals looked like this: That gives food for thought, right? So yeah, that particular distributor/reseller definitely didn't go through the trouble making this graphic up, it will certainly be created by Voltronic at some point. That's why I thought parts of the hardware might still be available in a normal 3kW unit, just not ready-to go as with the Axperts or the 5kW/10kW Infini units, where you just get a parallel board and plug it into place and you're ready to roll.

Hi folks. I was wondering if anyone has an idea where the parallel board of the 5kW/10kW unit attaches to the MCU/FPGA that drives those units and if it would be possible to do the same on the smaller 3kW unit? I'm from OZ, Far North Queensland. Regards, JTS

Just to make sure, I think you mentioned it earlier or somewhere else, those are not stack-able (parallel output on a single phase), right? Thx The websites of those manufacturers are hard to navigate - easier to ask someone who does know them.