The right inverter for battery storage and some other Qs

Oldgreybeard
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Joined: Thu Sep 09, 2021 3:42 pm
Location: North East Dorset

Re: The right inverter for battery storage and some other Qs

#131

Post by Oldgreybeard »

I suspect the majority of inverters are made in China. In terms of market share then I'd guess that Chinese inverters probably make up over 80% of the total. There are a handful of non-Chinese products available, all at the higher end of the price range.
25 off 250W Perlight solar panels, installed 2014, with a 6kW PowerOne inverter, about 6,000kWh/year generated
6 off Pylontech US3000C batteries, with a Sofar ME3000SP inverter
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Stinsy
Posts: 2640
Joined: Wed Jun 02, 2021 1:09 pm

Re: The right inverter for battery storage and some other Qs

#132

Post by Stinsy »

Oldgreybeard wrote: Fri Oct 14, 2022 3:26 pm I suspect the majority of inverters are made in China. In terms of market share then I'd guess that Chinese inverters probably make up over 80% of the total. There are a handful of non-Chinese products available, all at the higher end of the price range.
You mean like Victron (made in India)?
12x 340W JA Solar panels (4.08kWp)
3x 380W JA Solar panels (1.14kWp)
5x 2.4kWh Pylontech batteries (12kWh)
LuxPower inverter/charger

(Artist formally known as ******, well it should be obvious enough to those for whom such things are important.)
Oldgreybeard
Posts: 1873
Joined: Thu Sep 09, 2021 3:42 pm
Location: North East Dorset

Re: The right inverter for battery storage and some other Qs

#133

Post by Oldgreybeard »

Stinsy wrote: Fri Oct 14, 2022 7:32 pm
Oldgreybeard wrote: Fri Oct 14, 2022 3:26 pm I suspect the majority of inverters are made in China. In terms of market share then I'd guess that Chinese inverters probably make up over 80% of the total. There are a handful of non-Chinese products available, all at the higher end of the price range.
You mean like Victron (made in India)?
I didn't know that, I thought they were made in Europe, like SMA and one or two others. Be interesting to know what the market share of the various makes is. I'd still bet that the Chinese manufacturers, like Lux power, Solis, Growatt, Sofar, etc have the lion's share of the UK inverter market.
25 off 250W Perlight solar panels, installed 2014, with a 6kW PowerOne inverter, about 6,000kWh/year generated
6 off Pylontech US3000C batteries, with a Sofar ME3000SP inverter
ducabi
Posts: 172
Joined: Sat Sep 10, 2022 5:32 pm

Re: The right inverter for battery storage and some other Qs

#134

Post by ducabi »

I read @dangermouse thread and I'm happy to see it's not just me struggling to find electrician. The one on Friday was happy to do all the work and sounded good until he went back to office. Then I got email saying they are not approved installers therefore it would void warranty. I challenged it by saying what Sofar says "electrician meeting LA reqs". Then they said they don't have experience in sofar so wouldn't be able to do it anyway.

Another one came today and I was shocked when he said it would cost a day of work + materials. I thought there are no electrician charging by time spent anymore, just fixed prices in £k per anything solar related. Anyway, I'm waiting for a quote from him and will see how it goes.

Plan is:
1) mini CU with:
- SPD,
- RCD A 100mA,
- MCB curve C
- 2 light circuits moved from main CU
- additional double socket in garage.
- contractor switch for EPS

2) Earth rod

3) Perhaps commando socker 32A for EV. Would it then be better suited in main CU or new CU, or doesn't matter?
Oldgreybeard
Posts: 1873
Joined: Thu Sep 09, 2021 3:42 pm
Location: North East Dorset

Re: The right inverter for battery storage and some other Qs

#135

Post by Oldgreybeard »

There does seem to be a lot of work about and not enough electricians to do it, so they can be choosy about what work to accept and what to turn down. Becoming an authorised installer isn't usually a road block in practice. I needed to become one to installed a bit of kit when building this house and just rang the manufacturer and asked about doing the training. Did it there and then on the phone, took about 20 minutes of chatting with their technical chap and they then emailed me to tell me I was authorised to do the installation. I've heard that some manufacturers have their authorised installer training online now. You can just register and complete an online training course and you're ready to go.
25 off 250W Perlight solar panels, installed 2014, with a 6kW PowerOne inverter, about 6,000kWh/year generated
6 off Pylontech US3000C batteries, with a Sofar ME3000SP inverter
ducabi
Posts: 172
Joined: Sat Sep 10, 2022 5:32 pm

Re: The right inverter for battery storage and some other Qs

#136

Post by ducabi »

Oldgreybeard wrote: Wed Oct 19, 2022 12:11 pm There does seem to be a lot of work about and not enough electricians to do it, so they can be choosy about what work to accept and what to turn down. Becoming an authorised installer isn't usually a road block in practice. I needed to become one to installed a bit of kit when building this house and just rang the manufacturer and asked about doing the training. Did it there and then on the phone, took about 20 minutes of chatting with their technical chap and they then emailed me to tell me I was authorised to do the installation. I've heard that some manufacturers have their authorised installer training online now. You can just register and complete an online training course and you're ready to go.
They told me it vary, and for one brand they did 1hr online for another it was onsite with 4hr driving both ways. But that's not the case for Sofar so not sure if that's the real reason they turned it down even though they knew from beginning it was about Sofar.
Oldgreybeard
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Joined: Thu Sep 09, 2021 3:42 pm
Location: North East Dorset

Re: The right inverter for battery storage and some other Qs

#137

Post by Oldgreybeard »

Do Sofar actually care? My impression (as someone that installed a Sofar inverter) was that they didn't give a stuff about who did the installation. If there are hurdles being put in the way then I doubt it's from the manufacturers, most probably from UK importers.
25 off 250W Perlight solar panels, installed 2014, with a 6kW PowerOne inverter, about 6,000kWh/year generated
6 off Pylontech US3000C batteries, with a Sofar ME3000SP inverter
ducabi
Posts: 172
Joined: Sat Sep 10, 2022 5:32 pm

Re: The right inverter for battery storage and some other Qs

#138

Post by ducabi »

Oldgreybeard wrote: Wed Oct 19, 2022 12:57 pm Do Sofar actually care? My impression (as someone that installed a Sofar inverter) was that they didn't give a stuff about who did the installation. If there are hurdles being put in the way then I doubt it's from the manufacturers, most probably from UK importers.
No, Sofar don't care based on what they say in manual. Electrician sie fine.
ducabi
Posts: 172
Joined: Sat Sep 10, 2022 5:32 pm

Re: The right inverter for battery storage and some other Qs

#139

Post by ducabi »

Electricians just left so posting the work.

Battery to inverter
Image

New fuse box:
Image

Fuse box + switches
Image
ducabi
Posts: 172
Joined: Sat Sep 10, 2022 5:32 pm

Re: The right inverter for battery storage and some other Qs

#140

Post by ducabi »

I've charged the battery a bit and switched to using them instead of grid. My smart meter shows "2.5kW being exported". Does it mean something is messed up?
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