Sunsynk (DEYE) Hybrid Inverters

I wonder what the derating will be on the Solis 6th gen. I am eyeing the 125A

125A Solis 6G 6kW won't be available in Ireland until summer of next year (heard from the horse's mouth) and given the difficulty Solis have with the current gen, which basically does not conform to its spec sheet, that doesn't inspire confidence. The 8.8kW Sunsynk ticks all the boxes, I'll enquire about their availability tomorrow morning. If in stock my mate and myself will buy one. Or order one.

The thought of charging / discharging at 10kW 😎

Thanks will check them out.

Victron works fine on grid and off grid too. My aim is off grid entirely but that's not for a while yet.

I had typed "will check them out" before the video loaded. They are one of the folks I already follow on YT. Victron is expensive but works well for integrating other stuff. Especially Multiplus or Quattro. Same with Pylontech, they are more - substantially more - expensive than buying cells, building the battery yourself with busbars etc but tbh I like the integration of plug and play.

It's very expensive to go from 80-90% off grid to fully off grid anyway, I'm not sure it can be cost effective. Has to be an interest or self sufficiency requirement rather than purely cost basis. Think of it like buying an EV in the 90's. Not cost effective.

I got my house at a bargain so I don't mind spending money to make it off grid. I wont be moving anywhere. If it's a house full of blue victron stuff and suitcase batteries with pylontech or dyness written on them or so, so be it

Also. They just released a video criticising pylontech!

Aye. That sounds logical. A reactive response. They obviously should have checked that before they bought the property. Very naive. But once bought, maybe the only viable option as they might have been financially ruined having to sell the land on for a fraction of what they paid for it. They were ripped off. Might be completely wrong here, but that scenario would make sense

BTW Victron look nice but I don't know why some people think it's top of the range. It's not. Most of their stuff is made in India. If you do want top of the range, get the likes of SMA

Burning locally sourced wood / turf is fine as long as you live remotely. If not it affects people with breathing difficulties and it will cause cancer to people inhaling the PM2.5 spit out by the fire. Many more people in Ireland die from this each year than die in road traffic accidents.

The aim should be (apart from the financials) to burn as little as possible or have others burn as little as possible. So PV is good, buying electricity from the grid is also good, provided it is mostly clean (and getting cleaner every year), burning stuff is bad. In your case with your serious goal, serious budget and a one off property, your own serious wind generator might be an option. If you have a stream / lots of height difference, hydro would be even better.

Plenty of US prepper channels you could watch then 😂 David Poz is one of the more serious ones, afaik he is completely off grid in his family home.

Personally I never really get the prepper / doomsday stuff. If a nuke lands anywhere in the country, we're all dead. I can understand people want to be self-sufficient just as some sort of life goal, but that should also include growing all your food imho

Unkel - Yes we are also growing some food, have chickens for eggs, will have a couple of sheep and a goat next year hopefully.

Slave1 - I see production going as low as 3-4kWh a day already, I understand there is a deficit. I'm looking at ways to augment our setup to mitigate getting a run of bad days. Currently the max has been 1-2 bad days before a good enough day to replenish the buffer so we're not yet in a situation that we run out of power.

Wait till you see the "really bad days" ahead in December - LOL!

No, fair play to you. It was mentioned before, I for one respect anyone wanting to give it a go and try and get off grid in Ireland. I think from crunching the numbers myself that it's not a realistic proposition even with a variety of reasonable sources in addition to solar such as wind and hydro, but the willingness to give it a look is always nice to see. I don't say that sarcastically either.

It's nearly doable, but I think for many not a realistic proposition. I genuinely think you can develop the infra to get yourself fully "off grid" for 9 maybe 10 months a year. Never having to import one single unit.... but not having power on Christmas day would be .....problematic.

If only you could disconnect from the grid in Feb and then rehook it back up in Oct and not pay standing charges or disconnection/reconnection fees. :-)

Any update on how this is going for you? Contemplating replacing my Solis 6kw with one of these for the higher charge rates

Hey Chris,

The Deye is going great. I've definitely been impressed with it's capabilities. That said, I haven't tested high battery currents as I've only a wee AGM battery.

By the time you replace the inverter though, would you not just AC couple another one and go the NC7 route?

Yup

Do you mean grid-tied? The Deye is a DC coupled hybrid inverter! But yes I am grid tied ! Exporting plenty

No I have it configured as hybrid with my solar.

I've noticed small differences between the external CT and the internal reading yeah. You can tweak the settings (e.g. CT current ratio) to bring them into line. I haven't really bothered. MY suspicion is that the internal reading is slightly underestimated as both my MyEnergi CT readings and my external CT on the Deye inverter agree more closely at a slightly higher value.

Yes indeed - CT ratio is the ratio of the current signal delivered by the CT to the current flowing through it. So a bias of 10% can be accounted for by adjusting the CT ratio by 10%. If it's a fixed offset (like constant 100W) you can adjust using the export margin setting (which you may have set at 100W already). Changing the export margin won't change the CT reading like adjusting the CT ratio though.

Thanks for that, I'll give it a go.

As you thought I already had it set to trickle feed 100w from the grid. I'd rather have the data coming from the inverter to be accurate though.

Let me know if your selling the Solis I may be interested

Will let you know once get bit more info on 6kw deye and source one as will be putting the Solis up for sale then

EN50438 is long dead - but yes they have the EN50549 certs! ;)

The monitoring is decent enough, I have visibility of everything I want anyway and if you email Deye, they'll give you remote control too.

Unfortunately I can't offer you any insight to Seplos but it's certainly grand with my AGM diy job.

3Ph inverter still sitting inside the front door in the box with the wife giving out about it. I dunno what to do to be honest

Yes that's the plan, problem with the plan is that Solis UK do not tend to answer phones or reply to emails.