Any experience with Sigenergy?

[Gill]

Hi folks 

 

After a longer than expected break from house renovations, finally getting back to it and restarting the solar /battery search. I got a quote for panels that came with a recommend for Sigenergy kit (inverter, battery and gateway). Looks like it's in givenergy AIO territory but more modularised. UK user feedback is light and wondered if anyone in here had any experience.  

 

Thanks 

[Kelvin]

No but I am currently getting quotes for the same system. I like the look of it. Very flexible, highly modularised, some very good options for future proofing. They also have multiple battery sizes to allow you to size the system to more closely match your needs. The Tesla PW3 and GivEnergy AiO have the same problem in that one battery is too small and two is a bit more than I need. I’m getting quotes for: 

 

PW3

GivEnergy

Sigenergy

Powervault 

Solar Edge

Foxx 

 

This is largely down to what the local installers sell. 

[Alan Ambrose]

I see that Artisan Electrics are installing Sigeenergy equipmwnt currently - which is a good sign as Artisan generally install high-end. Their content is a bit light as they don’t fully explain why.

 

Am I right in thinking that with the rate of innovation and the inevitable industry consolidation that choosing a brand based on, say, their current app features is a bit fruitless?

 

Has anyone done the homework or have the experience to be able to differentiate well between the brands?

[Mattg4321]

Artisan sell whatever they get the best deal to promote imo. 

[Kelvin]

2 hours ago, Alan Ambrose said:

I see that Artisan Electrics are installing Sigeenergy equipmwnt currently - which is a good sign as Artisan generally install high-end. Their content is a bit light as they don’t fully explain why.

 

Am I right in thinking that with the rate of innovation and the inevitable industry consolidation that choosing a brand based on, say, their current app features is a bit fruitless?

 

Has anyone done the homework or have the experience to be able to differentiate well between the brands?

It’s all relatively new technology so companies will come and go and technology will develop at a rapid pace. Therefore there is a degree of risk buying any of it. Look at the Tesla Powerwall 2 for example which is a bit of a dead end and somewhat risky given its battery chemistry and not compatible with Powerwall 3.

What attracted me to SigEnergy Sigenstor is its modular so very easy to expand and you can mix and match batteries so it’s as future proofed as it can be. However the risk is that they are a relatively young company so could go pop or get acquired and everything changes. It’s run by ex Huawei execs who ran their renewables business. It’s also rapidly growing so are hopefully building a long term sustainable business. 

[Gill]

So I took the plunge.

 

Our solar / sigenergy system went in today - 11.2 kW array (south facing and west facing roof) , 16 kWh battery and 10 kw inverter. Initial thoughts post install - nice compact and unobtrusive system which we've sited outside at the front of the house. Install took 2.5 days and would probably been faster had we not gone with company based 70 miles away. That said, they were by far the most knowledgeable, least saleslike and most pleasant installer by some way so I think we got that right. 

 

Out the box monitoring is very clear and clean. Control wise it's easy to configure out the box. Installer has set up for self consumption and until we have export agreed, we're good. 

 

Next steps are EV testing (hopefully we'll have one in 2 weeks), export integration (4 weeks approx) and testing out the AI controller vs manual config. I've got the modbus unlocked but I doubt I'll have any time to play with that any time soon. 

 

Will come back once we've had a few months bedding in with updates should anyone be interested. 

[Kelvin]

Good stuff. We’ve had ours running for almost two weeks now. 8.45kWp array (East/West roof), 24kWh battery storage, and gateway for whole home backup. Also on self-consumption. Working really well and easy to configure. A few outstanding issues with the install but happy enough with it. 

[SteamyTea]

I would hope that any PV system works well this time of year.

Better to report back later when you have October 21 to March 21 numbers.

[Bonner]

On 24/07/2025 at 22:19, Gill said:

So I took the plunge.

 

Our solar / sigenergy system went in today - 11.2 kW array (south facing and west facing roof) , 16 kWh battery and 10 kw inverter. Initial thoughts post install - nice compact and unobtrusive system which we've sited outside at the front of the house. Install took 2.5 days and would probably been faster had we not gone with company based 70 miles away. That said, they were by far the most knowledgeable, least saleslike and most pleasant installer by some way so I think we got that right. 

 

Out the box monitoring is very clear and clean. Control wise it's easy to configure out the box. Installer has set up for self consumption and until we have export agreed, we're good. 

 

Next steps are EV testing (hopefully we'll have one in 2 weeks), export integration (4 weeks approx) and testing out the AI controller vs manual config. I've got the modbus unlocked but I doubt I'll have any time to play with that any time soon. 

 

Will come back once we've had a few months bedding in with updates should anyone be interested. 

I am looking at a similar system, how have you got on with it?

[Gill]

@Bonner I'm generally very happy with it. I've had one issue running AI mode where the clock change messed up the battery charge which Sigenergy sorted the same day. Wouldn't have impacted time based control but I enabled AI mode knowing it's still an evolving offering. I just plug in my tarrif, my batteries charge on cheap rate, solar goes to self consumption then grid sale and if my battery has spare capacity before cheap rate starts, the system will force discharge and sell that back to grid. There's more aggressive AI modes that will do that throughout your cheap rate if you're inclined. I'm balancing battery cycles /warranty /ROI. The system just does what it's supposed. The app is good and even my non techy other half has geeked out with the nice graphs. The ev charger integration is solid and I like having everything monitored in one place. 

 

Now that we're hitting colder weather I expect to be buying some peak rate power.  I did like the easy ability to expand battery capacity but I think we're probably about right - we still have a lot of improvements we can make to the house to reduce heat loss /consumption before I'd consider expanding.  

 

Things that you may not like - system needs to be connected to the Internet. No offline mode. Edit - It will handle Internet drop outs but after 90 days of no connection I think it'll go into safe mode. The backup solution (gateway) is expensive. I don't have it as power outs are very rare for us. You're tied to one company and if their service deteriorated then that could be a problem. I've heard of Givenegy customers having issues and getting poor support. With any single supplier all in one solution, it's a risk you take. Sigenergy support is good at the moment but who can say what might happen down the line. Battery warranty isn't as generous as some others - it's based on cycles so depends on how aggressively you use the batteries. Also octopus dynamic tarrifs not integrated yet - belive this is being tested at the moment with q1 release penciled in. I don't use octopus so wasn't a factor for me. 

 

Hope that helps. 

 

Edited 23 hours ago by Gill

[Bonner]

Thanks, appreciate the honest review. A few points to think about but I am not put off, still seems a good system

[Gill]

44 minutes ago, Bonner said:

Thanks, appreciate the honest review. A few points to think about but I am not put off, still seems a good system

We're very happy with it and no hesitation recommending. I do try to be objective as it's not a small investment and we went in eyes open to potential pitfalls.

 

There is a  FB group (sigenergy customers & installers group - UK) and which I joined before buying the system to get insight from current users. You might find it useful if you're gathering opinion or looking for specifics. 

 

Good luck with the journey!