I think I am going to take the plunge and order from China. I have been recommended a battery supplier. Apparently they pride themselves in packing the batteries properly for international freight.Has anyone had any dealings with them?
https://www.alibaba.com/product-detail/Luyuan-Fully-Matched-12V-EVE-Genuine_1600542168457.html?spm=a2700.shop_plgr.41413.14.7596521a7MYu4Q
If you trust the recommendation and are happy with it, the decision is yours. Price is a little bit steep though. Nice terminals though.
Priced these https://www.alibaba.com/product-detail/Eu-Us-Stock-Grade-A-280Ah_1600219202538.html?spm=a2700.12714957.0.0.26cf7a31QL0o8S (seller recommended by andy in the off grid garage) and 700 for shipping ( for 32 cells)
Would swapping out a 4kW inverter for a 6kW hybrid be considered like for like replacement akin to changing out a socket or would it require a RECI sign off?
Reci sign off for what ?
For electrical works. I have a reasonable working knowledge of electrical stuff but am not close to being an electrician and wouldn't want to do anything to affect house insurance. Not really up to date on what requires registered electrician sign off and what doesn't.
wrong thread
I am wondering the same. Having two inverters is also a reasonable solution. My thinking is getting hybrid now and setting it up for battery means I can almost plug and play a DIY battery in time, keeping things very simple.
that it?
I don't think so @poker--addict . I think it was a case of spending €3600 @ €30 per month for a 3kWp system with a non-Hybrid inverter, or paying about €5k (well really €7400 and get grant back later) upfront and at install.
And he went with the cheaper, fixed non-Hybrid option.
Well that's my read of it anyway - @scunermac ?
Hybrid 6kW inverter is about a grand more expensive now than non-hybrid. All of them hard to get too.
I have 16x 200amp cells on the way from OYE Store and with the recent bad reports here regarding capacit, I'm getting ready to test each cell within the first 15 days of arrival.
I've already ordered the load tester that was recommended way back in an old thread and am now looking at a charger so that I can first put a load into each cell before testing.
Would something like the following be okay? https://a.aliexpress.com/_m02OTO4
Or would you have any better recommendations?
If your batteries are on the way, then there's no guarantee that that one would arrive on time. I bought this a few weeks ago
https://www.amazon.co.uk/gp/aw/d/B08HYY3H92?psc=1&ref=ppx_pop_mob_b_asin_title
No I didn’t go with a SAAS provider. It’s the company that works directly with one of the large energy suppliers. Their model is very fixed in that they don’t offer hybrid inverters. if you want a battery, the only option with them is to go with a Sonnen system with a combined battery and hybrid inverter, which is very expensive. From what I remember it was the same price as the cost I’m paying for the 5KW of panels and non-hybrid converter in the first place.
I decided I would go with this because I’m not convinced in the payback of a battery system given my particular usage patterns. I.e we’re home during the day most days.
There's a lot to be said too for going SaaS and getting the 5kW of panels. Really a no brainer if you are in their area
The economics of a battery at any price level is questionable now. I'd say the only one that makes economic sense is a DIY one, especially when taking full advantage of load shifting
and only if you have a good night rate.
I am looking to install a large system to take into account the lower yield in winter .
What is the best 6kW inverter that can work with battery storage? By best I mean reliable, can work with a larger PV system (8/9kW) Also what is the best battery in terms of discharge rates for over 2.5kw? Preferably one that looks good too, thanks :)
I'd say the Solis 6kw 5G, many of us have it here.
https://www.ginlong.com/rhi_inverter1/1952.html
It can take 8kw of panels and charge/discharge at 5kw/100a
I think some people have 9kw of panels on it without issue once you're under the 600v per string.
I think 6G might be coming out soon too
Is yours sustaining 100amps for more than 10-15 minutes? Either charge or discharge.
Trying to see if I can change anything here. Temps look fine and doesn't matter if I have a fan on it or not
Hi,
I'm hoping to sell my PureDrive (5kwh DC battery) soon. Any thoughts on what is a fair price for it?
It's 6 months old, has always been kept within the default charge limits (above 20% SOC), comes with its power cables.
Well going by our guidance, €2.5k
I do think you could get €3k since the Puredrive has the higher throughput
For undecided DIYers - here's 20kWh of the AliExpress CALB 200Ah cells from the PWOD / OYE stores
Well considering you can get them for €2250 new I'd say around 2k
Anyone have the idiots guide to a battery management system?
is it difficult to alter it after the installer or is it very important to get it set up as close to possible from the get go. I think I’ll need different setting for summer and winter to maximise night rate and payback.
Further change it down the road for zappi. Don’t have a smart meter installed yet and unlikely to happen before the install unless I request it.
Looks a good job. What are you using to insulate the cells? Have you one or two BMS’s?
Pretty sure that's the packaging that the cells came in, modified for insulation.
Thanks. What battery would you recommend?
I had a puredrive in the past myself and never had any issues with it other than the cost.
I have Dyness now which are also good batteries and also some folk here use pylontechs.
BYD are also nice but not seeing many of them around.
One of the suppliers im talking with currently can only supply 2 x 2.4 batteries instead of 1 x 5.1, are there any technical downsides to this I should be aware of apart from the extra space required etc?
Repurposed packaging and 2 x Seplos BMS's
Actually just tested this out today and seems like it.
Started charging the car and battery was at over 4.6kwh and then dropped to around 3.7kwh after 15 mins as you can see.
Misleading marketing, 100a for 15 mins is nothing to brag about if it goes to 63a after. Well pissed off to find this.
Right on que https://www.ginlong.com/global/conews/Solis_Unveils_Sixth_Generation_Energy_Storage_Inverter_at_Intersolar_Europe_05112150.html
on further reading it may be ess invertor only but it does up the anti to victron multipluses.
