Micro inverters

[dlw]

Hi all,

Does anyone have experience with mico/string inverters

I watched an informative YouTube video recently https://youtu.be/XbsHmBbPwRk?si=nUUF7EQ4lXo3wzr4 and I have 4 new 535w panels spare and when I swap my 16 250w for 6 535w they will be spare too.

My inverters current have 2 spare mptt inputs but I can add the micro inverters directly onto them too, I think it would be best of both worlds to add low startup mico inverters which would give me some cloudy day and winter power while my normal panels do the high sun availability.

I've seen some mention on here of the hoymiles inverters and I am thinking of a 1600-4T

Cheers

D

[Joeboy]

Hi all,

Does anyone have experience with mico/string inverters

I watched an informative YouTube video recently https://youtu.be/XbsHmBbPwRk?si=nUUF7EQ4lXo3wzr4 and I have 4 new 535w panels spare and when I swap my 16 250w for 6 535w they will be spare too.

My inverters current have 2 spare mptt inputs but I can add the micro inverters directly onto them too, I think it would be best of both worlds to add low startup mico inverters which would give me some cloudy day and winter power while my normal panels do the high sun availability.

I've seen some mention on here of the hoymiles inverters and I am thinking of a 1600-4T

Cheers

D

Hi D,

Your Inverter, Is it 2 spare MC4 connections you have? I ask as generally an inverter will have at least 2 sets of mc4's to connect you DC panel strings to? That is then (the DC) power converted to AC power and fed to the home.

The Hoymiles microinverters do exactly the same thing and output AC which can be fed via a 3 pin plug directly into a home electric circuit.

Try and choose as least populated a circuit as you can as the power fed into the circuit you choose compounds along with any existing loads on that circuit.

You would be best advised to tie any micros back directly through their own dedicated circuit to your consumer unit. I have not done this but have an understanding of the loads moving on my home circuits. You may too?

[dlw]

Hi all,

Does anyone have experience with mico/string inverters

I watched an informative YouTube video recently https://youtu.be/XbsHmBbPwRk?si=nUUF7EQ4lXo3wzr4 and I have 4 new 535w panels spare and when I swap my 16 250w for 6 535w they will be spare too.

My inverters current have 2 spare mptt inputs but I can add the micro inverters directly onto them too, I think it would be best of both worlds to add low startup mico inverters which would give me some cloudy day and winter power while my normal panels do the high sun availability.

I've seen some mention on here of the hoymiles inverters and I am thinking of a 1600-4T

Cheers

D

Hi D,

Your Inverter, Is it 2 spare MC4 connections you have? I ask as generally an inverter will have at least 2 sets of mc4's to connect you DC panel strings to? That is then (the DC) power converted to AC power and fed to the home.

The Hoymiles microinverters do exactly the same thing and output AC which can be fed via a 3 pin plug directly into a home electric circuit.

Try and choose as least populated a circuit as you can as the power fed into the circuit you choose compounds along with any existing loads on that circuit.

You would be best advised to tie any micros back directly through their own dedicated circuit to your consumer unit. I have not done this but have an understanding of the loads moving on my home circuits. You may too?

Hi Joeboy,

I have 2 Sunsynk 5kw ecco's, I am using 1 mptt on each at the moment hence the 2 spare, the inverters are paralleled together and near enough act as one. The Sunsynk inverters allow for micro inverters to be added into the gen input as either load coupled or AC coupled and it can let them charge my batteries, so using micro inverters on a few panels with low startup voltage could maximise the energy produced during cloudy days and especially in winter months.

[Fueltheburn]

Hi all,

Does anyone have experience with mico/string inverters

I watched an informative YouTube video recently https://youtu.be/XbsHmBbPwRk?si=nUUF7EQ4lXo3wzr4 and I have 4 new 535w panels spare and when I swap my 16 250w for 6 535w they will be spare too.

My inverters current have 2 spare mptt inputs but I can add the micro inverters directly onto them too, I think it would be best of both worlds to add low startup mico inverters which would give me some cloudy day and winter power while my normal panels do the high sun availability.

I've seen some mention on here of the hoymiles inverters and I am thinking of a 1600-4T

Cheers

D

Hi D,

Your Inverter, Is it 2 spare MC4 connections you have? I ask as generally an inverter will have at least 2 sets of mc4's to connect you DC panel strings to? That is then (the DC) power converted to AC power and fed to the home.

The Hoymiles microinverters do exactly the same thing and output AC which can be fed via a 3 pin plug directly into a home electric circuit.

Try and choose as least populated a circuit as you can as the power fed into the circuit you choose compounds along with any existing loads on that circuit.

You would be best advised to tie any micros back directly through their own dedicated circuit to your consumer unit. I have not done this but have an understanding of the loads moving on my home circuits. You may too?

Hi Joeboy,

I have 2 Sunsynk 5kw ecco's, I am using 1 mptt on each at the moment hence the 2 spare, the inverters are paralleled together and near enough act as one. The Sunsynk inverters allow for micro inverters to be added into the gen input as either load coupled or AC coupled and it can let them charge my batteries, so using micro inverters on a few panels with low startup voltage could maximise the energy produced during cloudy days and especially in winter months.

This sounds ideal plugging it directly into the inverter.

I have an HMS800 plugged into my mains circuit. On cloudy days my 2 panels on the Hoymiles roportionately produce more than 10 on the main system because they are better located. You can optimise the micro-inverter panels by ground mounting or putting on spare space.

My future upgrades will be vertical panels on micro-inverters to capture the winter sun at low angles.

[Joeboy]

If you are buying in from Germany (Hoymiles) mind and ask the seller shop to set up an installer account for you so you can see its output. Also to ensure they set the micro for a G98 profile.

You can do this yourself as well once you have an installer account.

Welcome to the micro club. I particularly like the idea of relifeing your own panels after a main roof upgrade. That will be quite a bump up in production and as you say Winter generation.

I am looking forward to seeing how far into Winter (excl January) we can be generating meaningful power. At that time of year across those months I count 500W incoming as a win. 1kW has been unicorn territory.

[dlw]

If you are buying in from Germany (Hoymiles) mind and ask the seller shop to set up an installer account for you so you can see its output. Also to ensure they set the micro for a G98 profile.

You can do this yourself as well once you have an installer account.

Welcome to the micro club. I particularly like the idea of relifeing your own panels after a main roof upgrade. That will be quite a bump up in production and as you say Winter generation.

I am looking forward to seeing how far into Winter (excl January) we can be generating meaningful power. At that time of year across those months I count 500W incoming as a win. 1kW has been unicorn territory.

Good to know, I found a German seller on Ebay, not sure if I will end up paying inport duty on it, I am always in Europe so I could get it delivered to one of my jobs and collect it when I'm there.

I have 4 x new 535w panels I need to use, might have accidentally ordered too many as I had in my head that my single 5kw inverter could take 8kw not the 6.5kw it can, now I have 2 5kw inverter I could have 13kw of direct panels and another 5kw of micro inverter panels, only problem is I dont have space, and my house roof isn't very viable (maybe)

[Joeboy]

We have had some manky weather back home today going on the main system generation I'm seeing remotely. Yet the micro's are pushing out a 1/2kW together. In a well trimmed home a 1/2 kW can go a long way?

On import duty. I found that stuff bought ftom Oscar Handel had a good chance of slipping the net. GMBH stuff seemed to be regularly caught. I gave 4 Hoymiles systems across various homes. Also make sure you buy a model wi wifi onboard if monitoring is important to you. Saves going back for a dtu lite later. Defo worth buying and bringing back yourself.

The latest software looks quite good.

[Fueltheburn]

The HMS series of Hoymiles seems to have a higher current rating than the HM series. This is more important when using the bigger panels.

You can also over-panel the Hoymiles.

If the unit is a 1600W you can put on 500+W panels on each input.

[dlw]

We have had some manky weather back home today going on the main system generation I'm seeing remotely. Yet the micro's are pushing out a 1/2kW together. In a well trimmed home a 1/2 kW can go a long way?

On import duty. I found that stuff bought ftom Oscar Handel had a good chance of slipping the net. GMBH stuff seemed to be regularly caught. I gave 4 Hoymiles systems across various homes. Also make sure you buy a model wi wifi onboard if monitoring is important to you. Saves going back for a dtu lite later. Defo worth buying and bringing back yourself.

The latest software looks quite good.

Can you send me a link for Oscar Handel, I definitely want to keep track on stuff so wifi is a must but I can't find the HMS-1600 with WiFi.

1/2Kw is really bad, I've done over 12Kwh today and my batteries were full around 12pm from just under 50% at 6am and I exported but stopped it since I dont get paid for it.

The HMS series of Hoymiles seems to have a higher current rating than the HM series. This is more important when using the bigger panels.

You can also over-panel the Hoymiles.

If the unit is a 1600W you can put on 500+W panels on each input.

Yeah, I saw some of the specs and 550w per input is pretty nice

[Joeboy]

https://www.ebay.co.uk/itm/326344626214 ... R47r3eH6ZQ

The 500W is momentary, not cumulative. Still not great.