New system, string or micro inverters

[SolarRoofSols]

What size supply do you have in the house? if only single phase then you'll have to apply to DNO to connect more than 16a (3.68kW). If you have 3 ph then you'll be ok.

The DNO may let you connect 8kw on single phase without any upgrade works, if not then you'll have to pay for upgrades (poa with DNO)

 

[cdrive]

What size supply do you have in the house? if only single phase then you'll have to apply to DNO to connect more than 16a (3.68kW). If you have 3 ph then you'll be ok.

The DNO may let you connect 8kw on single phase without any upgrade works, if not then you'll have to pay for upgrades (poa with DNO)

I only have a single phase, So I would have to apply

 

[cdrive]

One of the quotes that has come it uses suntellite panels and solis 3600 inverters, are these any good?

 

[Worcester]

I won’t have any shading issues on the garage 3kw system.
The house will have shading issues (this time of year) if I use the on the long roof at the back (chimney on the back was removed last week), see attached photo taken at the weekend @11:45am
But won’t have any on the side of my the trees on that side are toy trees only 15ft high, but can only fit 2.5kw system.
I’m thinking that if I use the garage 3kw with string inverter in the garage. Use the side of the house 2.5kw and maybe the top of the back roof for another 1-1.5kw as it won’t have shading issues that high.

If you are happy with the standard of work done by the aerial fitter and conservatory installer, then go with the cheapest you can get.

 

[cdrive]

If you are happy with the standard of work done by the aerial fitter and conservatory installer, then go with the cheapest you can get.

PMSL, there was a chimney there which we had removed last week for the panels, the conservatory was all ready there when we moved in and will be replaced but as it not causing any issues at the moment, it can stay as we just had all the windows doors and guttering replaced.
I rather pay for new panels

 

[Worcester]

It was the ariel cable and guttering / downspout that I was actually alluding to, the cable should have been sorted when the chimney was done.

Is is simple enough to get a proper shading analysis done on site, either using a Solar Shading Meter with the MCS Overlay or, better still 3D modelling in PVSol, - the better installer is more likely to use the latter to give you a real analysis and they can do an animation of the effects to bak up their recommendations.

We would only supply from these inverter manufatcurers:
SMA (string)
Power-one (string and Micro)
Enphase (micro)
SolarEdge (inverter and optimisers)

Panel choice is a bit wider depending upon budget and aesthetics.

 

[cdrive]

Thanks I be going for the SMA or power-one string inverters as they seem to keep coming up with good reviews. I will go back to them and ask if the do can do a proper shading analysis.

They have all said if I just put a 3kw system on the roof, it would avoid the shading at the bottom.

as for the panels I would like them to be all black giving good performance. I would like the Sunpower 327 but they just cost too much

 

[Worcester]

Thanks I be going for the SMA or power-one string inverters as they seem to keep coming up with good reviews. I will go back to them and ask if the do can do a proper shading analysis.

They have all said if I just put a 3kw system on the roof, it would avoid the shading at the bottom.

as for the panels I would like them to be all black giving good performance. I would like the Sunpower 327 but they just cost too much

Could go for the Benq 325's same cell as the Sunpower's - we find that the economics adds up as the other costs are the same as for a smaller system and it's only an incremental panel cost.
Other costs: Design, paperwork, scaffold, AC cabling, DC Cabling, inverter, labour, mounting, insurance, QMS, are the same (well inverter may be £100 more..)



get them to paint the exposed ends of the rails black as well

 

[cdrive]

Thanks for that I will find out how much they are compared to the Solarworld ones. I like the painting exposed ends black tip as well, that's the sort of finish I would like

 

[Worcester]

Thanks for that I will find out how much they are compared to the Solarworld ones. I like the painting exposed ends black tip as well, that's the sort of finish I would like

Ask someone from the forum to quote then - most of us here do that sort of thing as standard practice without having to be asked

With all the advice that is available for free from here, it's only fair to give someone a chance (Kent is too far for us

 

[cdrive]

Thanks I will do