Renewables: "talking 'bout my generation"

theboylard

Martyn1981 wrote: »

Hiya TBL. I had a chat with a builder friend, who thought my £250 suggestion might not be too far off, if the job could be done by ladder, and clean up/material removal was handled by the customer. But suggested a more reasonable price/quote would probably be £500, taking 1 day (2 workers) including site cleanup and removal of materials.

But, but, but, would depend on access, and the use of ladders. Tower/scaffolding hire would bump the cost up.

I mentioned the PV, and risk of damage, but as he pointed out, it would always be done carefully anyway, as dropping bricks onto a roof, and them possibly rolling down and dropping onto other roofs etc is very serious, regardless of PV.

Mart.

Hi Mart,

thanks for coming back with that.

I've had some quotes now, with one builder looking at it and getting back in his van before he'd knocked on my door!!

The problem is access.
There is next to no side access to the property, so would involve scaffolding over the panels.
All of the roofers/builders said the same thing - move those first 4 panels out of the way and they'll take £250 off the cost!!

Obviously cheaper down in the valleys but the best I've got (without removing the panels) is £700 (ish, depending on what they find up there!).

So, with just a mention to the mrs, I've been a bit rash and bought some SE P300 optimisers and an SE 3500 inverter, but I have a couple P300 over to sell on - 30 to be exact! Got a great price on all the bits, all covered by SE warranties

I'll also sell on the Schuco that we have, and with the cost of scaffold to take into account, it sort of balances out.

I'll move the aerial to the other side of the chimney and lower it slightly which wll remove the shadow from that, plus it will move the pooping stand that the pigeons have been using it for!!

So I'll still have the shadow, but it will only affect the panels which it touches rather than both strings.

I've asked if our installers want to get involved, whatever happens I'll document the changes and the finished layout with the SE bits and monitoring.

Will come back when I have more news...

Oscargrouch

Only 2.72 O's for me today....Cloud cleared too late....:(

Martyn1981

zeupater wrote: »

.... which brings us around to the reason why PVGIS targets and MetOffice anomaly comparisons are also used by some ...

HTH
Z

Zeup (or anyone else), is it just me, or did the MetOffice stop updating the anomaly maps last summer?

http://www.metoffice.gov.uk/climate/uk/anomacts/

I used to check my above/below 100% monthly results, against the sunshine maps, and was very interested to see the July 13 map, as that was my best month by miles - 131% of target, next best 112%. But the maps seem to have stopped at June 13.


April looks like falling a little short, unless I get 3 Hawaii's ..... weather forecast says "No".

Mart.

legoman62

2.57 O's yesterday:D

Not gonna reach April PVGIS...unless I can use the 1st week in May too:)

tunnel

Just a smidge under 4 O's for me yesterday, my SSW nearly pulled an Hawaii out of the bag on its own, how is anyones guess as i didn't particularly think the weather was that great

groovyf

Just shy of 2.3 Os for me yesterday. Much better than I expected given how thick the clouds were in the morning. Inverter tells me I peaked at 3.2kW at one point - (maybe via that postage stamp-sized hole I saw for a brief moment!)

KevinG

Martyn1981 wrote: »

Zeup (or anyone else), is it just me, or did the MetOffice stop updating the anomaly maps last summer?

http://www.metoffice.gov.uk/climate/uk/anomacts/

I used to check my above/below 100% monthly results, against the sunshine maps, and was very interested to see the July 13 map, as that was my best month by miles - 131% of target, next best 112%. But the maps seem to have stopped at June 13.

Crumbs, yes, must be longer ago than I realise when I last looked at it. Not even a notice to say they are no longer being updated. Are they posting it somewhere else?

zeupater

Martyn1981 wrote: »

Zeup (or anyone else), is it just me, or did the MetOffice stop updating the anomaly maps last summer?

http://www.metoffice.gov.uk/climate/uk/anomacts/

I used to check my above/below 100% monthly results, against the sunshine maps, and was very interested to see the July 13 map, as that was my best month by miles - 131% of target, next best 112%. But the maps seem to have stopped at June 13.


April looks like falling a little short, unless I get 3 Hawaii's ..... weather forecast says "No".

Mart.

Hi

:think: .... Could it be that they moved it when they re-jigged the MetOffice site ? ...

Try here .... http://www.metoffice.gov.uk/climate/uk/summaries/anomacts ...

HTH
Z

zeupater

Hi All

Latest Month anomaly against '61-'90 would be the normal one to check on a regular basis ....

HTH
Z

Martyn1981

zeupater wrote: »

Hi

:think: .... Could it be that they moved it when they re-jigged the MetOffice site ? ...

Try here .... http://www.metoffice.gov.uk/climate/uk/summaries/anomacts ...

HTH
Z

Yep, that's it, brilliant, thanks.

So looks like S. Wales got 150%+ of average July sunshine last year. Which answered the question in my head, will generation track sunshine levels, or will temp changes balance it out a bit.

On the plus side, I'm pretty sure I've seen the same in reverse, where poor sunshine levels have been lower than my generation percentage, presumably/possibly because panel temps have helped to negate some of the losses.

Apart from one 82% and one 131% all my results fall between 84% and 112%. Sort of boringly stable. So far!

Mart.