Zanussi Solar Quote (6KW System)

tunnel

STRAIGHTTALKING wrote: »

Hi there let me quiote you for your solar PV system ...Please feel free to call 075******** Mark..

You have read the rules of the forum i'm assuming. I mean .....you have permission to post contact details and to sell your wears on here?

fxlaw786 wrote: »

Does this mean I can still enjoy a 6KWP+ system but limit the load back to grid to 3.68KW?
I have a lot of equipment which draws 4.5KW Constant, 27/4 and then my household usage will be around 1.5~2KW so that's why I want about 6KW or more.

I'll second what Dave F says, worst case you keep/get the 3.68 cap and FiT, best case it's paid on a 6.6kWp system and with your consumption i'd be tempted to push for the G59

fxlaw786

Thanks. From what I understood, he's saying I can enjoy the 6.6KWP but limit what is exported back to grid, to just 3.68KWP... this is worst case if G59 fails.

mre15

As far as I am aware the HD Wave 3680 will only generate a maximum of 3.68kW AC, it will take a much bigger DC input but the output will always be maximum of 3.68kW.

If you want to ever achieve a bigger output then you will need a bigger inverter SE5000 or SE6000 and then have the output capped back until you receive approval.

Martyn1981

fxlaw786 wrote: »

Does this mean I can still enjoy a 6KWP+ system but limit the load back to grid to 3.68KW?
I have a lot of equipment which draws 4.5KW Constant, 27/4 and then my household usage will be around 1.5~2KW so that's why I want about 6KW or more.

Nope. The inverter will limit generation to 3.68kW. But, there are some items/ideas out there that limit export to 3.68kW, not generation. But you need to go Googling.

Can I suggest you ring your DNO and ask them for advice on this, as they may have approved something like this, but you'll need to install whatever has been approved .... if anything.

So, as an example, you are drawing 4.5kW, the 6kW system is generating 5kW, and exporting 0.5kW, v's

you consuming 4.5kW, with 3.68kW (capped) coming from the inverter/PV and the rest as import.

I might be sending you on a wild goose chase, so apologies in advance, but perhaps worth researching, and definitely ring DNO, hopefully they'll put you through to the right person, who'll be able to help/advise.

mre15

I know my Solis Rhi hybrid inverter has the feature you require built in, as I suspect do a few others.
My inverter will allow me to set an export level from 0 to max kW. I have tried it, and with it set to 0 it will only generate at a level to meet my demand. My inverter was supplied with a standalone energy meter that monitors my grid feed, this is how it can control output to grid.
I assume this is normal with hybrid inverters as they require a bit more info to operate correctly.

With a household demand that high you will certainly want to ensure you get a bigger inverter capable of meeting the demand. Even if you do have to go the route of limiting the grid export to meet the dno requirements.

fxlaw786

That's perfect, I will ring my local DNO for further info and at least now I know there are more options. Thank you, everyone, for your input. I hope you all have a great week

Martyn1981

mre15 wrote: »

I know my Solis Rhi hybrid inverter has the feature you require built in, as I suspect do a few others.
My inverter will allow me to set an export level from 0 to max kW. I have tried it, and with it set to 0 it will only generate at a level to meet my demand. My inverter was supplied with a standalone energy meter that monitors my grid feed, this is how it can control output to grid.
I assume this is normal with hybrid inverters as they require a bit more info to operate correctly.

With a household demand that high you will certainly want to ensure you get a bigger inverter capable of meeting the demand. Even if you do have to go the route of limiting the grid export to meet the dno requirements.

Yep, it's ideas and products like that. But, and here's the big BUT, they will need to have been checked, reviewed, researched (whatever it is they do) by the DNO and approved. So just because a product can do it (or says it can do it), doesn't mean the DNO will allow it, as they need to know that it's bullet proof and won't fail.

I don't pretend to know all the procedures, but assume that a manufacturer would approach a DNO and ask for them to review the product for compliance/approval. Perhaps it is something more central, but I seem to recall that DNO's vary in their policies ...... no surprise there then, couldn't be easy could it!

Martyn1981

fxlaw786 wrote: »

That's perfect, I will ring my local DNO for further info and at least now I know there are more options. Thank you, everyone, for your input. I hope you all have a great week

Hiya. Can I ask, whatever you find out, could you come back and write it all up, even if it's just their thoughts and ponderings, as this is an area that could be very interesting.

But again, if it turns into a wild goose chase, I do apologise, but even feedback on that would be useful for the forum.

Best of luck.

fxlaw786

Of course, I will update this thread once I know more. Thanks again.

Lincs_Eco_Energy

Hi, did you get anywhere with this? I'm a small solar PV installer based in North Lincolnshire. You can install up to 16A/3.68kW inverter under G83/2 regulations without needing DNO approval, anything above this mandates a G59/3 submission to the DNO that can take up to 45 working days to get a response unless you can speak with a designer at the DNO to speed things up. Where I am, Northern Powergrid also levy design application charges of a few hundred pounds. I see there has been a reference to SolarEdge, I install this kit, with panel level power optimisation and monitoring it's just about the best and safest out there. With the HD wave range of inverters you can oversize the DC (i.e. panels) relevant to the inverter by 155%, so 3.68kW (SE3680H) can be maxed to 5.705kWp, the inverter will automatically clip out surplus generation around peak generation of midday so the 3.68kW threshold isn't breached. If you did go down the G59/3 route and no further export capacity was permitted, you could consider installing a G100 export limitation device capped to the threshold of what the DNO would permit, again you'll need to get approval from the DNO. An example for instance would be 6kW AC generation with export limitation device set to 3.68kW. SolarEdge have a G100 compliant export limitation device through their Modbus Meter set-up. Time is probably of the essence. Hope this is of some additional useful information for you.