Renewables: "talking 'bout my generation"

shafeeq

Oscargrouch wrote: »

A proxy 2.4 O's today;
But never mind, the good times are soon to roll again.....

Even with shades... 2.62 O's.. Oscargrouch what's up mate.. You haven't got shade problem have you?

groovyf

A paltry 3kWh yesterday, (it took 9 hours to hit the 2kWh mark, a further 2 hours took me up another 1kWh - thanks to the sky brightening up).
Better today at 8.6kWh - blue sky for a while this morning.
I'm missing Friday's belter of a day already

nigelpm

Dodo0808 wrote: »

I'm not concerned about my system as my generation seems to be similar to other systems my size.....but, do any of you have any thoughts, or give further insight/experience on this?

Thanks, Dawn.

Bottom line is it's only really on cold but very sunny days where having a limited inverter will make much of a difference. On other days you get the benefit of a lower rated inverter.

Oscargrouch

shafeeq wrote: »

Cursing the Damn TREE that's where I am...

I stand in front of my Window and look at the Tree and start cursing it. It's a stubborn Tree..... oh well given up now.....

1.13 O's yesterday

He's still going.......on about the tree........:rotfl::rotfl: Good to hear from you at long last.....Leaves are not at full span yet........

jimmyboy420

Taking a look at my PVOutput stats, I can see that I am 0.34kWh down on PVGIS, per day, on average to the end of yesterday. Not too bad. But I'd prefer to be above it!

EricMears

Oscargrouch wrote: »

.....Leaves are not at full span yet........

Nor of course has the sun reached its high point. Shading effect might get either better or worse. (copper nails are still very cheap !)

nigelpm

jimmyboy420 wrote: »

Taking a look at my PVOutput stats, I can see that I am 0.34kWh down on PVGIS, per day, on average to the end of yesterday. Not too bad. But I'd prefer to be above it!

I don't think you can look at PVGIS as a sensible comparison. Far better to compare with local systems.

tunnel

nigelpm wrote: »

I don't think you can look at PVGIS as a sensible comparison. Far better to compare with local systems.

PVGIS is the sensible comparison. You input your details and it gives you a good idea of how you should be doing. Comparing against someone elses nearby only tells you that you both may be having cr*p weather/conditions, it doesn't give you any idea whatsoever as to what you should be expecting to generate

EricMears

PVGS is by far the best (maybe even the only) comparison method that is at all meaningfull. But it's very much a long term thing - there's so much short term variation that one day's output has no 'norm' - even comparing this April with a typical April is pretty pointless.


Comparing with a nearby installation may well be more useful in the short term but you'd need to be absolutely certain that it was a valid comparison - if the other set of panels were pointing in different directions or subject to a different degree of local shading the comparison would be no help at all.

jimmyboy420

I compare to both PVGIS and also other local systems. Such as...
http://pvoutput.org/compare.jsp?sid=28021&sid1=25797
http://pvoutput.org/compare.jsp?sid=28021&sid1=7369

I tend to do quite well compared to them (neither of them beat me very often at all), but I don't know about exact details of shading or orientation....