Renewables: "talking 'bout my generation"

Merlin139

EricMears wrote: »

At this time of year Scotland has a huge advantage in that it has much longer daylight hours.

But all of that is taken into consideration in the PVGIS estimates. Look how big the May target is for someone in Scotland!

EricMears

Merlin139 wrote: »

But all of that is taken into consideration in the PVGIS estimates. Look how big the May target is for someone in Scotland!

Quite so. But the 'O' system takes no account of how panels have performed compared to expectations - it's just a crude division of daily output by panel rating.

legoman62

Bitterly cold and windy here today....had some Sunshine though. Made 4.725 O's:)

Merlin139

Hawaii + 0.65 O's

Great morning poor afternoon. Yesterday Poor morning great afternoon.

Oscargrouch

EricMears wrote: »

Quite so. But the 'O' system takes no account of how panels have performed compared to expectations - it's just a crude division of daily output by panel rating.

Please, get back in the real world Eric; posting Kwh has even greater anomalies.
Back to the real world: A grand A/an Hawaii + 00.72 O's for me today..:beer:..

ajbell

4.98 Os today.


446kWh for May so far.

shavy65

shavy65 wrote: »

6.4 Scottish O`s yesterday!

6.5 O`s yesterday...the extra minutes of daylight obviously helped

Martyn1981

Lovely day yesterday and an almost max score of 32kWhs 5.7O's (I've seen 34 in the past).

Currently predicting about 101% for May.

Mart.

EricMears

Oscargrouch wrote: »

Please, get back in the real world Eric; posting Kwh has even greater anomalies.

Merlin appeared to be suggesting that the O calculation already allows for factors like longer day length in Scotland. It does not ! Nor indeed does it take many other factors - which also make the simple comparison inaccurate.

Merlin139

EricMears wrote: »

Merlin appeared to be suggesting that the O calculation already allows for factors like longer day length in Scotland. It does not ! Nor indeed does it take many other factors - which also make the simple comparison inaccurate.

The O system makes it a beter way to judge who is doing better than others. Without it the person with the biggest system should always be on top. I could never generate 32 kWh like Martyn did yesterday, and I doubt anyone else could with a 4 kWh system.

The PVGIS gives us an indication of how we should be doing. Apart from Shavy up in the lovely country of Scotland I am about the furthest north from what I can see from peoples signatures. You have never heard me moaning that the guys living down south have an advantage over me. If I moved my system to my parents house on the south coast it would be 400+ kWh per year better off.

If we all had identical sytems facing the same way and we all had the same weather eachday then those up in Scotland between the Spring and Autumn equinox would do better because of the amount of daylight but what about the angle of the sun does that not make some difference?

A system in Fraserborough Scotland and one due south of Fraserborough in Swanage in Dorset would have 950 kWh per year difference in PVGIS.

Until someone can come up with a handicap system to account for the weather, size, orrientation, angle, type and make of panel, longitude and latitude I guess we will all have to accept Oscars system.:cool:

At the end of the day what difference does it make? Some of us come here everyday to publish what are panels have achieved. No prizes for 1st, 2nd, 3rd or last. Some come here only when they have generated great figures. Some maybe inflating their scores! Who knows, who cares! If I stopped posting on here I would not lose any sleep over it. Its a bit of fun especially in the winter when some people have generated virtually nothing!:D

Now off to do something important! Take a dump!:rotfl: