Solar Quote opinions

Martyn1981

pw22 wrote: »

They seem to have quoted inverters of 4500, 4200 etc - I think if you go over 4000 then you need prior permission from the DNO so it might be worth checking that with them.

I was wondering that too, seems a little strange. Both Samil and SMA produce very high efficient dual MPPT 3,680W inverters that are effectively capped 4kW models. In both cases the 3.68kW models are a little cheaper, and would avoid any DNO issues.

Or, as tunnel says, they limit the inverters and put that on the paperwork.

Guess they'll probably sort it out / refine the install as and when things progress!

Mart.

savdefriz

All the other companies I've contacted seem to be coming in at around the 6k mark plus and are trying to tell me that I should get Solar Edge etc. The problem that I have is that I am worried that the quote posted above may be a little too good to be true especially as it's purely over the internet. I don't know if I can paste the name of the company on here so I won't. but if it's OK I could send PMs to those interested and they could tell me if they are a reputable firm or not. My gut tells me that sometimes if something is too good to be true in terms of quotes often it is!!

Cheers

SDF

tunnel

Let's take a look at it shall we,
Say you go for the seraphims that's £4895
Add on an SMA inverter £245
Then the iboost at £395
Added up that's a total £5535
Now for a 3.99kWp system we've recently seen a price of £5300, this price included a monitoring system(£150),SMA and similar panels.... but not the iboost.


Why are the other companies telling you of solaredge, DO HAVE ANY SHADING on the roof on which you will be putting the panels? If no, then solaredge or micro inverters are not necessary.


here's an idea, can you measure the length of your house and then the width and roughly what the pitch of the roof is? Post these figures on here and we'll tell you straight away what you can get up there and if the internet quote will be ok.


Just post the company name on here too, just don't post a link, just something like tpsolar for example. No one will be bothered, and if the quote is taken up and you're happy then they get good publicity, if not there was a thread not long back that the company involved asked the person to stop posting(they'd ripped their eyes out on a quote) and then they would reimburse and rectify the problem(mart knows which one I mean).

savdefriz

The house roof would be roughly 9.5m wide with a pitch of about 40 degrees. Not sure exactly how high it is to the apex of the triangle but I would think somewhere between 6.5 to 8m

The garage roof is about 20 degrees pitch, about 7.5m wide and about 4.5 m to the top of the apex.

The quote I have came from a company from Solargen who I have to be honest have been very informative in all of their e-mails.

The panels would be facing 10degrees from south and I am way up here in West Cumbria.

Niether roof has any shading.

Thanks again

SDF

capstain411

I got mine installed today. Thanks to wisdom of MSErs especially Mart and Tunnel.

My system 3.99 kw Benq 285w 14 panels Sma invertor. Wattson solar plus...mounting same as yours £5300.

The installer was amazing. Replaced two tiles damaged prior to installation, fixed guttering pipe displaced duebto strong winds....and bless them replaced bathroom extractor fan which broke yesterday as favor.

You will underestimate returns on brew and pack of digestives offered during installation.

Btw i am a hairy bloke with thick glasses. Extras was not due to low neck clevage revealing top. Just joking.

The chaps worked 1.5 days.

tunnel

savdefriz wrote: »

The house roof would be roughly 9.5m wide with a pitch of about 40 degrees. Not sure exactly how high it is to the apex of the triangle but I would think somewhere between 6.5 to 8m

The garage roof is about 20 degrees pitch, about 7.5m wide and about 4.5 m to the top of the apex.

The quote I have came from a company from Solargen who I have to be honest have been very informative in all of their e-mails.

The panels would be facing 10degrees from south and I am way up here in West Cumbria.

Niether roof has any shading.

Thanks again

SDF

Is the house and garage attached?

capstain411 wrote: »

You will underestimate returns on brew and pack of digestives offered during installation.

Mines a bottle of red to replace the one I WILL be consuming tonight

Martyn1981

savdefriz wrote: »

The house roof would be roughly 9.5m wide with a pitch of about 40 degrees. Not sure exactly how high it is to the apex of the triangle but I would think somewhere between 6.5 to 8m

The garage roof is about 20 degrees pitch, about 7.5m wide and about 4.5 m to the top of the apex.

The quote I have came from a company from Solargen who I have to be honest have been very informative in all of their e-mails.

The panels would be facing 10degrees from south and I am way up here in West Cumbria.

Niether roof has any shading.

Thanks again

SDF

Hiya. Both roofs sound good.

Starting with the garage you might get 16 panels on there (16 being the initial target for 250Wp panels = 4kWp) and using standard 1m by 1.6m panels.

You might get 4x4 landscape 6.4m wide by 4m high. If that's too tight then 12 easy 4x3 = 6.4m by 3m or portrait 6 (poss 7) x 2 6m by 3.2m.

But, the house roof would be an easier fit with portrait 8x2 8m wide by 3.2m tall. If you are close to south facing then pitch won't make much difference to annual generation. The 40d pitch probably slightly better, but here's the kicker - more importantly, shallow panels work best when the sun is high, steeper panels work better when the sun is lower. So, the 40d roof will produce a little less in the summer when you have leccy coming out of your ears, being exported, and a little more in the winter when it's in short supply and being imported.

[Edit: Or do em both!!!! M.]

Mart.

tunnel

savdefriz wrote: »

The house roof would be roughly 9.5m wide with a pitch of about 40 degrees. Not sure exactly how high it is to the apex of the triangle but I would think somewhere between 6.5 to 8m

The garage roof is about 20 degrees pitch, about 7.5m wide and about 4.5 m to the top of the apex.

Can you just redo them numbers please, we'll need full length...back to front(of house) and full width...side to side, if it's around 40deg pitch then we can work out roughly from there, unfortunately I don't quite understand the figures you've given. Same with the garage please!


IF...if I've read it right you may be able to get a standard 4kWp(250W panel) system up there.


Edit, looks like Mart beat me to it.

Martyn1981

tunnel wrote: »

Can you just redo them numbers please, we'll need full length...back to front(of house) and full width...side to side, if it's around 40deg pitch then we can work out roughly from there, unfortunately I don't quite understand the figures you've given. Same with the garage please!

Ahh! Good point. I've assumed the heights aren't height from ground, but, for wont of a better description, "a tape measure slid up from gutter to ridge"? Reading it again, I may have assumed wrong.

Mart.

tunnel

Martyn1981 wrote: »

[Edit: Or do em both!!!! M.]

Mart.

Ha, I was thinking the same thing, just wanted to clarify the dimensions before I muddled their brain anymore.