Hello,
@BLUETTI
I’m very interested in this new product that’s starting to be shown at trade shows: the “Balco Transfer” (image below). Do you have any specifications? In particular, is there a system equivalent to a Shelly meter/Current sensor that allows for modulating the power injected into the outlet to achieve “zero injection” into the grid? What is the maximum power that can be injected ? And what is the AC output/AC input efficiency? Thank you!
Hello,
Thank you for your interest in our new Balco Transfer. We appreciate your enthusiasm.
We expect it to go on sale on May 12. It will support third‑party meters including Shelly and EverHome. Key specifications are:
If you have any other questions or need further details, feel free to ask.
Thank you very much for your very detailed response. I have a follow-up question: would it be possible to go beyond 800W, if the user is warned, fully aware of the risks, and has checked that his electrical wiring (AWG/mm²) is sufficient to avoid the risk of overheating ?
Looks great. I am very interested in this product. In the UK we are currently passing legislation to support plug in solar. Please keep the UK in mind and hopefully the Balco Transfer can launch here as well. The last micro inverter didn’t get a UK release. Perhaps Bluetti can time this well for early introduction to the UK when the new rules come in. A lot of people seem interested in this technology.
Edit-
It would be even better if it had the capability to connect to the expansion battery or the Charger 2. I have a Shelly Pro 3EM so am excited about the news that Shelly could be supported. Let me know if you need any UK testing I have an Apex300, AC300, Elite100 and Charger 2 and Bluetti gold member now 
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Hello, this product is currently designed for 800W power; it cannot exceed 800W.
Definitely interested in this assuming the UK plug in solar regs get updated by the end of summer as promised.
Curious about two things however
The Balco Transfer is available for pre-order in Europe !! 
I just ordered one! Here’s the link to the manual.
If you understand German, check out the live performance by the excellent Selfmadestrom.
Bluetti Balco Transfer Hub: Vorstellung, Verlosung + eure Fragen! - YouTube
If not, turn on English subtitles on your phone/Youtube !
Interesting that it has an EN(UK) manual
Disappointing that it seems to have no support for standard existing power meters and that they too don’t support a simple wifi CT clamp and taking the voltage info from the fact it’s plugged in. That makes it much harder to install in the UK as our regs don’t permit anyone but a qualified electrician to fit things into the consumer unit/main panel.
Still want to know what the efficiency looks like. Bluetti really ought to give some estimate on that. It’s not like the day it comes out someone isn’t going to measure it and do a youtube video 8)
I ordered a Balco Transfer unit, and as soon as I receive it, the first thing I’ll do is measure its efficiency. Indeed, for it to work, AC must be activated on the bluetti, so there’s already an initial loss… and then the Balco Transfer unit, and I don’t know if it performs an AC-DC conversion and then AC conversion (synchronous with the grid) or if it simply shifts the phase of the AC coming out of the Bluetti to be in sync with the grid, without requiring DC conversion.
For the electrical panel: you still have the option of installing a compatible smart meter-outlet between the electrical grid and the electrical equipment, and the balco transfer will inject only the power consumed as measured by the smart outlet.