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burnerr:
Which does the growatt hope belong to? It says lithium-ion in the title but LiFePo4 in the description.

I wouldn't completely trust that page description if I was you. Growatt has both Lithium battery technologies. Just do your due diligence before making the purchase.

maklelemakukula:
Good morning people, I've been following this thread and it's been very useful.

I want to setup a solar system in my house, preferably with a 7-8kwh battery.
I intend getting jinko panels 615 watts for this setup(please how many would I need). I also intended on getting a growatt spf 5000ES(1 mppt, 5kw) inverter but then I saw the spf 6000ES(2 mppt, 6kw) at fouani and shockingly the 6000ES was cheaper(this gave me concerns) and what gave me more doubt was that they both had a 2 year warranty while the sph 5000 tl-bl-up which is twice the price has a 5 year warranty(I suspect it's transformer based), is it advisable I get this instead as I'm concerned about long term quality.

Also, is felicity 7.2 kwh battery good to go for this project cos I wanted to get growatt but the highest stand alone growatt battery I saw at fouani was 5.5kwh and it's a bit more expensive than the 7.2 kwh felicity battery.

I also would like a system that would give priority to my load during the day and use what's left to charge the batteries. Would the growatt sph 5000 tl-bl-up inverter be able to do this ?

The image is the sph 5000 tl-bl-up

The 6000ES and 5000ES are sufficient. Just because they have 2 years warranty doesn't mean that's remotely close to their half-life or how long they'd last. There are those using theirs for 5 years plus without a single issue. It depends on your taste, funds and preference. They are all good

maklelemakukula:
Thanks for your input. This is my first solar project so I intend to use a well known brand. When it's time for the next one I'll use Valto.
I haven't bought any panels yet but intend to buy 8 615watt jinko panels, will these be sufficient ?

It's impossible to discern what's sufficient for you without stating your loads or planned daily usage. It doesn't have to be entirely accurate.

maklelemakukula:
But inverters have "maximum recommended pv power". Overloading it would be dangerous

Most smart hybrid inverters and charge controllers would ignore the rest of your solar harvest once you go above the maximum PV power they support. So you'd only be wasting the PV yield not necessarily damaging anything. Though I'm against such advice unless you're very buoyant and have too much funds.

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burnerr:
I'll go for the lithium. Another question, do you think it's better to go for transformer inverter with mppt controller or would the hybrid transformerless serve well?

Your planned setup is already a recipe for success. The 5kva Growatt inverter you intend getting is a tried and tested performer. The relatively high price you pay for it already covers the excellent quality expected of it. Likewise the in-built Mppt it comes with is good enough so you don't need spending money on any extra external mppt. Keep that money for some other important project.

My only input would be on the type of Lithium battery you intend to buy. Make sure it's LiFePo4 chemistry and not Lithium ion.

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